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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 | ||
19 | #include <debug.h> | |
20 | #include <pcep_utils_counters.h> | |
21 | #include <pcep_timers.h> | |
22 | #include "pathd/path_errors.h" | |
23 | #include "pathd/path_memory.h" | |
24 | #include "pathd/path_pcep.h" | |
25 | #include "pathd/path_pcep_lib.h" | |
26 | #include "pathd/path_pcep_debug.h" | |
27 | #include "pathd/path_pcep_memory.h" | |
28 | ||
29 | #define CLASS_TYPE(CLASS, TYPE) (((CLASS) << 16) | (TYPE)) | |
30 | #define DEFAULT_LSAP_SETUP_PRIO 4 | |
31 | #define DEFAULT_LSAP_HOLDING_PRIO 4 | |
32 | #define DEFAULT_LSAP_LOCAL_PRETECTION false | |
33 | ||
34 | /* pceplib logging callback */ | |
35 | static int pceplib_logging_cb(int level, const char *fmt, va_list args); | |
36 | ||
37 | /* Socket callbacks */ | |
38 | static int pcep_lib_pceplib_socket_read_cb(void *fpt, void **thread, int fd, | |
39 | void *payload); | |
40 | static int pcep_lib_pceplib_socket_write_cb(void *fpt, void **thread, int fd, | |
41 | void *payload); | |
42 | static int pcep_lib_socket_read_ready(struct thread *thread); | |
43 | static int pcep_lib_socket_write_ready(struct thread *thread); | |
44 | ||
45 | /* pceplib pcep_event callbacks */ | |
46 | static void pcep_lib_pceplib_event_cb(void *fpt, pcep_event *event); | |
47 | ||
48 | /* pceplib pthread creation callback */ | |
49 | static int pcep_lib_pthread_create_cb(pthread_t *pthread_id, | |
50 | const pthread_attr_t *attr, | |
51 | void *(*start_routine)(void *), | |
52 | void *data, const char *thread_name); | |
53 | void *pcep_lib_pthread_start_passthrough(void *data); | |
54 | int pcep_lib_pthread_stop_cb(struct frr_pthread *, void **); | |
55 | ||
56 | /* Internal functions */ | |
57 | static double_linked_list *pcep_lib_format_path(struct pcep_caps *caps, | |
58 | struct path *path); | |
59 | static void pcep_lib_format_constraints(struct path *path, | |
60 | double_linked_list *objs); | |
61 | static void pcep_lib_parse_open(struct pcep_caps *caps, | |
62 | struct pcep_object_open *open); | |
63 | static void | |
64 | pcep_lib_parse_open_pce_capability(struct pcep_caps *caps, | |
65 | struct pcep_object_tlv_header *tlv_header); | |
66 | static void | |
67 | pcep_lib_parse_open_objfun_list(struct pcep_caps *caps, | |
68 | struct pcep_object_tlv_header *tlv_header); | |
69 | static void pcep_lib_parse_rp(struct path *path, struct pcep_object_rp *rp); | |
70 | static void pcep_lib_parse_srp(struct path *path, struct pcep_object_srp *srp); | |
71 | static void pcep_lib_parse_lsp(struct path *path, struct pcep_object_lsp *lsp); | |
72 | static void pcep_lib_parse_lspa(struct path *path, | |
73 | struct pcep_object_lspa *lspa); | |
74 | static void pcep_lib_parse_metric(struct path *path, | |
75 | struct pcep_object_metric *obj); | |
76 | static void pcep_lib_parse_ero(struct path *path, struct pcep_object_ro *ero); | |
77 | static struct path_hop *pcep_lib_parse_ero_sr(struct path_hop *next, | |
78 | struct pcep_ro_subobj_sr *sr); | |
79 | static struct counters_group *copy_counter_group(struct counters_group *from); | |
80 | static struct counters_subgroup * | |
81 | copy_counter_subgroup(struct counters_subgroup *from); | |
82 | static struct counter *copy_counter(struct counter *from); | |
83 | static void free_counter_group(struct counters_group *group); | |
84 | static void free_counter_subgroup(struct counters_subgroup *subgroup); | |
85 | static void free_counter(struct counter *counter); | |
86 | ||
87 | struct pcep_lib_pthread_passthrough_data { | |
88 | void *(*start_routine)(void *data); | |
89 | void *data; | |
90 | }; | |
91 | ||
92 | /* ------------ API Functions ------------ */ | |
93 | ||
94 | int pcep_lib_initialize(struct frr_pthread *fpt) | |
95 | { | |
96 | PCEP_DEBUG("Initializing pceplib"); | |
97 | ||
98 | /* Register pceplib logging callback */ | |
99 | register_logger(pceplib_logging_cb); | |
100 | ||
101 | /* Its ok that this object goes out of scope, as it | |
102 | * wont be stored, and its values will be copied */ | |
103 | struct pceplib_infra_config infra = { | |
104 | /* Memory infrastructure */ | |
105 | .pceplib_infra_mt = MTYPE_PCEPLIB_INFRA, | |
106 | .pceplib_messages_mt = MTYPE_PCEPLIB_MESSAGES, | |
107 | .malloc_func = (pceplib_malloc_func)qmalloc, | |
108 | .calloc_func = (pceplib_calloc_func)qcalloc, | |
109 | .realloc_func = (pceplib_realloc_func)qrealloc, | |
110 | .strdup_func = (pceplib_strdup_func)qstrdup, | |
111 | .free_func = (pceplib_free_func)qfree, | |
112 | /* Timers infrastructure */ | |
113 | .external_infra_data = fpt, | |
114 | .socket_read_func = pcep_lib_pceplib_socket_read_cb, | |
115 | .socket_write_func = pcep_lib_pceplib_socket_write_cb, | |
116 | /* PCEP events */ | |
117 | .pcep_event_func = pcep_lib_pceplib_event_cb, | |
118 | /* PCEPlib pthread creation callback */ | |
119 | .pthread_create_func = pcep_lib_pthread_create_cb}; | |
120 | if (!initialize_pcc_infra(&infra)) { | |
121 | flog_err(EC_PATH_PCEP_PCC_INIT, "failed to initialize pceplib"); | |
122 | return 1; | |
123 | } | |
124 | ||
125 | return 0; | |
126 | } | |
127 | ||
128 | void pcep_lib_finalize(void) | |
129 | { | |
130 | PCEP_DEBUG("Finalizing pceplib"); | |
131 | if (!destroy_pcc()) { | |
132 | flog_err(EC_PATH_PCEP_PCC_FINI, "failed to finalize pceplib"); | |
133 | } | |
134 | } | |
135 | ||
136 | ||
137 | pcep_session * | |
138 | pcep_lib_connect(struct ipaddr *src_addr, int src_port, struct ipaddr *dst_addr, | |
139 | int dst_port, short msd, | |
140 | const struct pcep_config_group_opts *pcep_options) | |
141 | { | |
142 | pcep_configuration *config; | |
143 | pcep_session *sess; | |
144 | ||
145 | config = create_default_pcep_configuration(); | |
146 | config->dst_pcep_port = dst_port; | |
147 | config->src_pcep_port = src_port; | |
148 | if (IS_IPADDR_V6(src_addr)) { | |
149 | config->is_src_ipv6 = true; | |
150 | memcpy(&config->src_ip.src_ipv6, &src_addr->ipaddr_v6, | |
151 | sizeof(struct in6_addr)); | |
152 | } else { | |
153 | config->is_src_ipv6 = false; | |
154 | config->src_ip.src_ipv4 = src_addr->ipaddr_v4; | |
155 | } | |
156 | ||
157 | config->support_stateful_pce_lsp_update = true; | |
158 | config->support_pce_lsp_instantiation = false; | |
159 | config->support_include_db_version = false; | |
160 | config->support_lsp_triggered_resync = false; | |
161 | config->support_lsp_delta_sync = false; | |
162 | config->support_pce_triggered_initial_sync = false; | |
163 | config->support_sr_te_pst = true; | |
164 | config->pcc_can_resolve_nai_to_sid = false; | |
165 | ||
166 | config->max_sid_depth = msd; | |
167 | config->pcep_msg_versioning->draft_ietf_pce_segment_routing_07 = | |
168 | pcep_options->draft07; | |
169 | config->keep_alive_seconds = pcep_options->keep_alive_seconds; | |
170 | config->min_keep_alive_seconds = pcep_options->min_keep_alive_seconds; | |
171 | config->max_keep_alive_seconds = pcep_options->max_keep_alive_seconds; | |
172 | config->dead_timer_seconds = pcep_options->dead_timer_seconds; | |
173 | config->min_dead_timer_seconds = pcep_options->min_dead_timer_seconds; | |
174 | config->max_dead_timer_seconds = pcep_options->max_dead_timer_seconds; | |
175 | config->request_time_seconds = pcep_options->pcep_request_time_seconds; | |
176 | /* TODO when available in the pceplib, set it here | |
177 | pcep_options->state_timeout_inteval_seconds;*/ | |
178 | ||
179 | if (pcep_options->tcp_md5_auth != NULL | |
180 | && pcep_options->tcp_md5_auth[0] != '\0') { | |
181 | config->is_tcp_auth_md5 = true; | |
182 | strncpy(config->tcp_authentication_str, | |
183 | pcep_options->tcp_md5_auth, TCP_MD5SIG_MAXKEYLEN); | |
184 | } else { | |
185 | config->is_tcp_auth_md5 = false; | |
186 | } | |
187 | ||
188 | if (IS_IPADDR_V6(dst_addr)) { | |
189 | sess = connect_pce_ipv6(config, &dst_addr->ipaddr_v6); | |
190 | } else { | |
191 | sess = connect_pce(config, &dst_addr->ipaddr_v4); | |
192 | } | |
193 | destroy_pcep_configuration(config); | |
194 | return sess; | |
195 | } | |
196 | ||
197 | void pcep_lib_disconnect(pcep_session *sess) | |
198 | { | |
199 | assert(sess != NULL); | |
200 | disconnect_pce(sess); | |
201 | } | |
202 | ||
203 | /* Callback passed to pceplib to write to a socket. | |
204 | * When the socket is ready to be written to, | |
205 | * pcep_lib_socket_write_ready() will be called */ | |
206 | ||
207 | int pcep_lib_pceplib_socket_write_cb(void *fpt, void **thread, int fd, | |
208 | void *payload) | |
209 | { | |
210 | return pcep_thread_socket_write(fpt, thread, fd, payload, | |
211 | pcep_lib_socket_write_ready); | |
212 | } | |
213 | ||
214 | /* Callback passed to pceplib to read from a socket. | |
215 | * When the socket is ready to be read from, | |
216 | * pcep_lib_socket_read_ready() will be called */ | |
217 | ||
218 | int pcep_lib_pceplib_socket_read_cb(void *fpt, void **thread, int fd, | |
219 | void *payload) | |
220 | { | |
221 | return pcep_thread_socket_read(fpt, thread, fd, payload, | |
222 | pcep_lib_socket_read_ready); | |
223 | } | |
224 | ||
225 | /* Callbacks called by path_pcep_controller when a socket is ready to read/write | |
226 | */ | |
227 | ||
228 | int pcep_lib_socket_write_ready(struct thread *thread) | |
229 | { | |
230 | struct pcep_ctrl_socket_data *data = THREAD_ARG(thread); | |
231 | assert(data != NULL); | |
232 | ||
233 | int retval = pceplib_external_socket_write(data->fd, data->payload); | |
234 | XFREE(MTYPE_PCEP, data); | |
235 | ||
236 | return retval; | |
237 | } | |
238 | ||
239 | int pcep_lib_socket_read_ready(struct thread *thread) | |
240 | { | |
241 | struct pcep_ctrl_socket_data *data = THREAD_ARG(thread); | |
242 | assert(data != NULL); | |
243 | ||
244 | int retval = pceplib_external_socket_read(data->fd, data->payload); | |
245 | XFREE(MTYPE_PCEP, data); | |
246 | ||
247 | return retval; | |
248 | } | |
249 | ||
250 | /* Callback passed to pceplib when a pcep_event is ready */ | |
251 | void pcep_lib_pceplib_event_cb(void *fpt, pcep_event *event) | |
252 | { | |
253 | pcep_thread_send_ctrl_event(fpt, event, pcep_thread_pcep_event); | |
254 | } | |
255 | ||
256 | /* Wrapper function around the actual pceplib thread start function */ | |
257 | void *pcep_lib_pthread_start_passthrough(void *data) | |
258 | { | |
259 | struct frr_pthread *fpt = data; | |
260 | struct pcep_lib_pthread_passthrough_data *passthrough_data = fpt->data; | |
261 | void *start_routine_data = passthrough_data->data; | |
262 | void *(*start_routine)(void *) = passthrough_data->start_routine; | |
263 | XFREE(MTYPE_PCEP, passthrough_data); | |
264 | ||
265 | if (start_routine != NULL) { | |
266 | return start_routine(start_routine_data); | |
267 | } | |
268 | ||
269 | return NULL; | |
270 | } | |
271 | ||
272 | int pcep_lib_pthread_create_cb(pthread_t *thread_id, const pthread_attr_t *attr, | |
273 | void *(*start_routine)(void *), void *data, | |
274 | const char *thread_name) | |
275 | { | |
276 | /* Since FRR calls the start_routine with a struct frr_pthread, | |
277 | * we have to store the real data and callback in a passthrough | |
278 | * and pass the actual data the start_routine needs */ | |
279 | struct pcep_lib_pthread_passthrough_data *passthrough_data = XMALLOC( | |
280 | MTYPE_PCEP, sizeof(struct pcep_lib_pthread_passthrough_data)); | |
281 | passthrough_data->data = data; | |
282 | passthrough_data->start_routine = start_routine; | |
283 | ||
284 | struct frr_pthread_attr fpt_attr = { | |
285 | .start = pcep_lib_pthread_start_passthrough, | |
286 | .stop = pcep_lib_pthread_stop_cb}; | |
287 | struct frr_pthread *fpt = | |
5ffdc11e | 288 | frr_pthread_new(&fpt_attr, thread_name, "pcep_lib"); |
efba0985 SM |
289 | if (fpt == NULL) { |
290 | return 1; | |
291 | } | |
292 | ||
293 | fpt->data = passthrough_data; | |
294 | int retval = frr_pthread_run(fpt, attr); | |
295 | if (retval) { | |
296 | return retval; | |
297 | } | |
298 | ||
299 | *thread_id = fpt->thread; | |
300 | ||
301 | return 0; | |
302 | } | |
303 | ||
304 | int pcep_lib_pthread_stop_cb(struct frr_pthread *fpt, void **res) | |
305 | { | |
306 | pcep_lib_finalize(); | |
307 | frr_pthread_destroy(fpt); | |
308 | ||
309 | return 0; | |
310 | } | |
311 | ||
312 | struct pcep_message *pcep_lib_format_report(struct pcep_caps *caps, | |
313 | struct path *path) | |
314 | { | |
315 | double_linked_list *objs = pcep_lib_format_path(caps, path); | |
316 | return pcep_msg_create_report(objs); | |
317 | } | |
318 | ||
319 | static struct pcep_object_rp *create_rp(uint32_t reqid) | |
320 | { | |
321 | double_linked_list *rp_tlvs; | |
322 | struct pcep_object_tlv_path_setup_type *setup_type_tlv; | |
323 | struct pcep_object_rp *rp; | |
324 | ||
325 | rp_tlvs = dll_initialize(); | |
326 | setup_type_tlv = pcep_tlv_create_path_setup_type(SR_TE_PST); | |
327 | dll_append(rp_tlvs, setup_type_tlv); | |
328 | ||
329 | rp = pcep_obj_create_rp(0, false, false, false, true, reqid, rp_tlvs); | |
330 | ||
331 | return rp; | |
332 | } | |
333 | ||
334 | struct pcep_message *pcep_lib_format_request(struct pcep_caps *caps, | |
335 | struct path *path) | |
336 | { | |
337 | struct ipaddr *src = &path->pcc_addr; | |
338 | struct ipaddr *dst = &path->nbkey.endpoint; | |
339 | double_linked_list *objs; | |
340 | struct pcep_object_rp *rp; | |
341 | struct pcep_object_endpoints_ipv4 *endpoints_ipv4; | |
342 | struct pcep_object_endpoints_ipv6 *endpoints_ipv6; | |
343 | struct pcep_object_objective_function *of = NULL; | |
344 | enum objfun_type objfun = OBJFUN_UNDEFINED; | |
345 | ||
346 | assert(src->ipa_type == dst->ipa_type); | |
347 | ||
348 | objs = dll_initialize(); | |
349 | rp = create_rp(path->req_id); | |
350 | rp->header.flag_p = true; | |
351 | ||
352 | pcep_lib_format_constraints(path, objs); | |
353 | ||
354 | /* Objective Function */ | |
355 | if (path->has_pcc_objfun) { | |
356 | objfun = path->pcc_objfun; | |
357 | } | |
358 | ||
359 | if (objfun != OBJFUN_UNDEFINED) { | |
360 | of = pcep_obj_create_objective_function(objfun, NULL); | |
361 | assert(of != NULL); | |
362 | of->header.flag_p = path->enforce_pcc_objfun; | |
363 | dll_append(objs, of); | |
364 | } | |
365 | ||
366 | if (IS_IPADDR_V6(src)) { | |
367 | endpoints_ipv6 = pcep_obj_create_endpoint_ipv6(&src->ipaddr_v6, | |
368 | &dst->ipaddr_v6); | |
369 | endpoints_ipv6->header.flag_p = true; | |
370 | return pcep_msg_create_request_ipv6(rp, endpoints_ipv6, objs); | |
371 | } else { | |
372 | endpoints_ipv4 = pcep_obj_create_endpoint_ipv4(&src->ipaddr_v4, | |
373 | &dst->ipaddr_v4); | |
374 | endpoints_ipv4->header.flag_p = true; | |
375 | return pcep_msg_create_request(rp, endpoints_ipv4, objs); | |
376 | } | |
377 | } | |
378 | ||
379 | struct pcep_message *pcep_lib_format_error(int error_type, int error_value) | |
380 | { | |
381 | return pcep_msg_create_error(error_type, error_value); | |
382 | } | |
383 | ||
384 | struct pcep_message *pcep_lib_format_request_cancelled(uint32_t reqid) | |
385 | { | |
386 | struct pcep_object_notify *notify; | |
387 | double_linked_list *objs; | |
388 | struct pcep_object_rp *rp; | |
389 | ||
390 | notify = pcep_obj_create_notify( | |
391 | PCEP_NOTIFY_TYPE_PENDING_REQUEST_CANCELLED, | |
392 | PCEP_NOTIFY_VALUE_PCC_CANCELLED_REQUEST); | |
393 | objs = dll_initialize(); | |
394 | rp = create_rp(reqid); | |
395 | dll_append(objs, rp); | |
396 | ||
397 | return pcep_msg_create_notify(notify, objs); | |
398 | } | |
399 | ||
400 | struct path *pcep_lib_parse_path(struct pcep_message *msg) | |
401 | { | |
402 | struct path *path; | |
403 | double_linked_list *objs = msg->obj_list; | |
404 | double_linked_list_node *node; | |
405 | ||
406 | struct pcep_object_header *obj; | |
407 | struct pcep_object_rp *rp = NULL; | |
408 | struct pcep_object_srp *srp = NULL; | |
409 | struct pcep_object_lsp *lsp = NULL; | |
410 | struct pcep_object_lspa *lspa = NULL; | |
411 | struct pcep_object_ro *ero = NULL; | |
412 | struct pcep_object_metric *metric = NULL; | |
413 | struct pcep_object_bandwidth *bandwidth = NULL; | |
414 | struct pcep_object_objective_function *of = NULL; | |
415 | ||
416 | path = pcep_new_path(); | |
417 | ||
418 | for (node = objs->head; node != NULL; node = node->next_node) { | |
419 | obj = (struct pcep_object_header *)node->data; | |
420 | switch (CLASS_TYPE(obj->object_class, obj->object_type)) { | |
421 | case CLASS_TYPE(PCEP_OBJ_CLASS_RP, PCEP_OBJ_TYPE_RP): | |
422 | assert(rp == NULL); | |
423 | rp = (struct pcep_object_rp *)obj; | |
424 | pcep_lib_parse_rp(path, rp); | |
425 | break; | |
426 | case CLASS_TYPE(PCEP_OBJ_CLASS_SRP, PCEP_OBJ_TYPE_SRP): | |
427 | assert(srp == NULL); | |
428 | srp = (struct pcep_object_srp *)obj; | |
429 | pcep_lib_parse_srp(path, srp); | |
430 | break; | |
431 | case CLASS_TYPE(PCEP_OBJ_CLASS_LSP, PCEP_OBJ_TYPE_LSP): | |
432 | /* Only support single LSP per message */ | |
433 | assert(lsp == NULL); | |
434 | lsp = (struct pcep_object_lsp *)obj; | |
435 | pcep_lib_parse_lsp(path, lsp); | |
436 | break; | |
437 | case CLASS_TYPE(PCEP_OBJ_CLASS_LSPA, PCEP_OBJ_TYPE_LSPA): | |
438 | assert(lspa == NULL); | |
439 | lspa = (struct pcep_object_lspa *)obj; | |
440 | pcep_lib_parse_lspa(path, lspa); | |
441 | break; | |
442 | case CLASS_TYPE(PCEP_OBJ_CLASS_ERO, PCEP_OBJ_TYPE_ERO): | |
443 | /* Only support single ERO per message */ | |
444 | assert(ero == NULL); | |
445 | ero = (struct pcep_object_ro *)obj; | |
446 | pcep_lib_parse_ero(path, ero); | |
447 | break; | |
448 | case CLASS_TYPE(PCEP_OBJ_CLASS_METRIC, PCEP_OBJ_TYPE_METRIC): | |
449 | metric = (struct pcep_object_metric *)obj; | |
450 | pcep_lib_parse_metric(path, metric); | |
451 | break; | |
452 | case CLASS_TYPE(PCEP_OBJ_CLASS_BANDWIDTH, | |
453 | PCEP_OBJ_TYPE_BANDWIDTH_REQ): | |
454 | case CLASS_TYPE(PCEP_OBJ_CLASS_BANDWIDTH, | |
455 | PCEP_OBJ_TYPE_BANDWIDTH_CISCO): | |
456 | bandwidth = (struct pcep_object_bandwidth *)obj; | |
457 | path->has_bandwidth = true; | |
458 | path->bandwidth = bandwidth->bandwidth; | |
459 | break; | |
460 | case CLASS_TYPE(PCEP_OBJ_CLASS_NOPATH, PCEP_OBJ_TYPE_NOPATH): | |
461 | path->no_path = true; | |
462 | break; | |
463 | case CLASS_TYPE(PCEP_OBJ_CLASS_OF, PCEP_OBJ_TYPE_OF): | |
464 | of = (struct pcep_object_objective_function *)obj; | |
465 | path->has_pce_objfun = true; | |
466 | path->pce_objfun = of->of_code; | |
467 | break; | |
468 | default: | |
469 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_OBJECT, | |
470 | "Unexpected PCEP object %s (%u) / %s (%u)", | |
471 | pcep_object_class_name(obj->object_class), | |
472 | obj->object_class, | |
473 | pcep_object_type_name(obj->object_class, | |
474 | obj->object_type), | |
475 | obj->object_type); | |
476 | break; | |
477 | } | |
478 | } | |
479 | ||
480 | return path; | |
481 | } | |
482 | ||
483 | void pcep_lib_parse_capabilities(struct pcep_message *msg, | |
484 | struct pcep_caps *caps) | |
485 | { | |
486 | double_linked_list *objs = msg->obj_list; | |
487 | double_linked_list_node *node; | |
488 | ||
489 | struct pcep_object_header *obj; | |
490 | struct pcep_object_open *open = NULL; | |
491 | ||
492 | for (node = objs->head; node != NULL; node = node->next_node) { | |
493 | obj = (struct pcep_object_header *)node->data; | |
494 | switch (CLASS_TYPE(obj->object_class, obj->object_type)) { | |
495 | case CLASS_TYPE(PCEP_OBJ_CLASS_OPEN, PCEP_OBJ_TYPE_OPEN): | |
496 | assert(open == NULL); | |
497 | open = (struct pcep_object_open *)obj; | |
498 | pcep_lib_parse_open(caps, open); | |
499 | break; | |
500 | default: | |
501 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_OBJECT, | |
502 | "Unexpected PCEP object %s (%u) / %s (%u)", | |
503 | pcep_object_class_name(obj->object_class), | |
504 | obj->object_class, | |
505 | pcep_object_type_name(obj->object_class, | |
506 | obj->object_type), | |
507 | obj->object_type); | |
508 | break; | |
509 | } | |
510 | } | |
511 | } | |
512 | ||
513 | struct counters_group *pcep_lib_copy_counters(pcep_session *sess) | |
514 | { | |
515 | if (!sess || !sess->pcep_session_counters) { | |
516 | return NULL; | |
517 | } | |
518 | ||
519 | return copy_counter_group(sess->pcep_session_counters); | |
520 | } | |
521 | ||
522 | void pcep_lib_free_counters(struct counters_group *counters) | |
523 | { | |
524 | free_counter_group(counters); | |
525 | } | |
526 | ||
527 | pcep_session *pcep_lib_copy_pcep_session(pcep_session *sess) | |
528 | { | |
529 | if (!sess) { | |
530 | return NULL; | |
531 | } | |
532 | ||
533 | pcep_session *copy; | |
534 | copy = XCALLOC(MTYPE_PCEP, sizeof(*copy)); | |
535 | memcpy(copy, sess, sizeof(*copy)); | |
536 | /* These fields should not be accessed */ | |
537 | copy->num_unknown_messages_time_queue = NULL; | |
538 | copy->socket_comm_session = NULL; | |
539 | copy->pcep_session_counters = NULL; | |
540 | ||
541 | return copy; | |
542 | } | |
543 | ||
544 | /* ------------ pceplib logging callback ------------ */ | |
545 | ||
546 | int pceplib_logging_cb(int priority, const char *fmt, va_list args) | |
547 | { | |
548 | char buffer[1024]; | |
549 | vsnprintf(buffer, sizeof(buffer), fmt, args); | |
550 | PCEP_DEBUG_PCEPLIB(priority, "pceplib: %s", buffer); | |
551 | return 0; | |
552 | } | |
553 | ||
554 | /* ------------ Internal Functions ------------ */ | |
555 | ||
556 | double_linked_list *pcep_lib_format_path(struct pcep_caps *caps, | |
557 | struct path *path) | |
558 | { | |
559 | struct in_addr addr_null; | |
560 | double_linked_list *objs, *srp_tlvs, *lsp_tlvs, *ero_objs; | |
561 | struct pcep_object_tlv_header *tlv; | |
562 | struct pcep_object_ro_subobj *ero_obj; | |
563 | struct pcep_object_srp *srp; | |
564 | struct pcep_object_lsp *lsp; | |
565 | struct pcep_object_ro *ero; | |
566 | uint32_t encoded_binding_sid; | |
567 | char binding_sid_lsp_tlv_data[6]; | |
568 | ||
569 | memset(&addr_null, 0, sizeof(addr_null)); | |
570 | ||
571 | objs = dll_initialize(); | |
572 | ||
573 | if (path->plsp_id != 0) { | |
574 | /* SRP object */ | |
575 | srp_tlvs = dll_initialize(); | |
576 | tlv = (struct pcep_object_tlv_header *) | |
577 | pcep_tlv_create_path_setup_type(SR_TE_PST); | |
578 | assert(tlv != NULL); | |
579 | dll_append(srp_tlvs, tlv); | |
580 | srp = pcep_obj_create_srp(path->do_remove, path->srp_id, | |
581 | srp_tlvs); | |
582 | assert(srp != NULL); | |
583 | srp->header.flag_p = true; | |
584 | dll_append(objs, srp); | |
585 | } | |
586 | ||
587 | /* LSP object */ | |
588 | lsp_tlvs = dll_initialize(); | |
589 | ||
590 | if (path->plsp_id == 0 || IS_IPADDR_NONE(&path->nbkey.endpoint) | |
591 | || IS_IPADDR_NONE(&path->pcc_addr)) { | |
592 | tlv = (struct pcep_object_tlv_header *) | |
593 | pcep_tlv_create_ipv4_lsp_identifiers( | |
594 | &addr_null, &addr_null, 0, 0, &addr_null); | |
595 | } else { | |
596 | assert(path->pcc_addr.ipa_type | |
597 | == path->nbkey.endpoint.ipa_type); | |
598 | if (IS_IPADDR_V4(&path->pcc_addr)) { | |
599 | tlv = (struct pcep_object_tlv_header *) | |
600 | pcep_tlv_create_ipv4_lsp_identifiers( | |
601 | &path->pcc_addr.ipaddr_v4, | |
602 | &path->nbkey.endpoint.ipaddr_v4, 0, 0, | |
603 | &path->pcc_addr.ipaddr_v4); | |
604 | } else { | |
605 | tlv = (struct pcep_object_tlv_header *) | |
606 | pcep_tlv_create_ipv6_lsp_identifiers( | |
607 | &path->pcc_addr.ipaddr_v6, | |
608 | &path->nbkey.endpoint.ipaddr_v6, 0, 0, | |
609 | &path->pcc_addr.ipaddr_v6); | |
610 | } | |
611 | } | |
612 | assert(tlv != NULL); | |
613 | dll_append(lsp_tlvs, tlv); | |
614 | if (path->name != NULL) { | |
615 | tlv = (struct pcep_object_tlv_header *) | |
616 | /*FIXME: Remove the typecasty when pceplib is changed | |
617 | to take a const char* */ | |
618 | pcep_tlv_create_symbolic_path_name((char *)path->name, | |
619 | strlen(path->name)); | |
620 | assert(tlv != NULL); | |
621 | dll_append(lsp_tlvs, tlv); | |
622 | } | |
623 | if ((path->plsp_id != 0) && (path->binding_sid != MPLS_LABEL_NONE)) { | |
624 | memset(binding_sid_lsp_tlv_data, 0, 2); | |
625 | encoded_binding_sid = htonl(path->binding_sid << 12); | |
626 | memcpy(binding_sid_lsp_tlv_data + 2, &encoded_binding_sid, 4); | |
627 | tlv = (struct pcep_object_tlv_header *) | |
628 | pcep_tlv_create_tlv_arbitrary( | |
629 | binding_sid_lsp_tlv_data, | |
630 | sizeof(binding_sid_lsp_tlv_data), 65505); | |
631 | assert(tlv != NULL); | |
632 | dll_append(lsp_tlvs, tlv); | |
633 | } | |
634 | lsp = pcep_obj_create_lsp( | |
635 | path->plsp_id, path->status, path->was_created /* C Flag */, | |
636 | path->go_active /* A Flag */, path->was_removed /* R Flag */, | |
637 | path->is_synching /* S Flag */, path->is_delegated /* D Flag */, | |
638 | lsp_tlvs); | |
639 | assert(lsp != NULL); | |
640 | lsp->header.flag_p = true; | |
641 | dll_append(objs, lsp); | |
642 | /* ERO object */ | |
643 | ero_objs = dll_initialize(); | |
644 | for (struct path_hop *hop = path->first_hop; hop != NULL; | |
645 | hop = hop->next) { | |
646 | uint32_t sid; | |
647 | ||
648 | /* Only supporting MPLS hops with both sid and nai */ | |
649 | assert(hop->is_mpls); | |
650 | assert(hop->has_sid); | |
651 | ||
652 | if (hop->has_attribs) { | |
653 | sid = ENCODE_SR_ERO_SID(hop->sid.mpls.label, | |
654 | hop->sid.mpls.traffic_class, | |
655 | hop->sid.mpls.is_bottom, | |
656 | hop->sid.mpls.ttl); | |
657 | } else { | |
658 | sid = ENCODE_SR_ERO_SID(hop->sid.mpls.label, 0, 0, 0); | |
659 | } | |
660 | ||
661 | ero_obj = NULL; | |
662 | if (hop->has_nai) { | |
663 | assert(hop->nai.type != PCEP_SR_SUBOBJ_NAI_ABSENT); | |
664 | assert(hop->nai.type | |
665 | != PCEP_SR_SUBOBJ_NAI_LINK_LOCAL_IPV6_ADJACENCY); | |
666 | assert(hop->nai.type != PCEP_SR_SUBOBJ_NAI_UNKNOWN); | |
667 | switch (hop->nai.type) { | |
668 | case PCEP_SR_SUBOBJ_NAI_IPV4_NODE: | |
669 | ero_obj = (struct pcep_object_ro_subobj *) | |
670 | pcep_obj_create_ro_subobj_sr_ipv4_node( | |
671 | hop->is_loose, !hop->has_sid, | |
672 | hop->has_attribs, /* C Flag */ | |
673 | hop->is_mpls, /* M Flag */ | |
674 | sid, | |
675 | &hop->nai.local_addr.ipaddr_v4); | |
676 | break; | |
677 | case PCEP_SR_SUBOBJ_NAI_IPV6_NODE: | |
678 | ero_obj = (struct pcep_object_ro_subobj *) | |
679 | pcep_obj_create_ro_subobj_sr_ipv6_node( | |
680 | hop->is_loose, !hop->has_sid, | |
681 | hop->has_attribs, /* C Flag */ | |
682 | hop->is_mpls, /* M Flag */ | |
683 | sid, | |
684 | &hop->nai.local_addr.ipaddr_v6); | |
685 | break; | |
686 | case PCEP_SR_SUBOBJ_NAI_IPV4_ADJACENCY: | |
687 | ero_obj = (struct pcep_object_ro_subobj *) | |
688 | pcep_obj_create_ro_subobj_sr_ipv4_adj( | |
689 | hop->is_loose, !hop->has_sid, | |
690 | hop->has_attribs, /* C Flag */ | |
691 | hop->is_mpls, /* M Flag */ | |
692 | sid, | |
693 | &hop->nai.local_addr.ipaddr_v4, | |
694 | &hop->nai.remote_addr | |
695 | .ipaddr_v4); | |
696 | break; | |
697 | case PCEP_SR_SUBOBJ_NAI_IPV6_ADJACENCY: | |
698 | ero_obj = (struct pcep_object_ro_subobj *) | |
699 | pcep_obj_create_ro_subobj_sr_ipv6_adj( | |
700 | hop->is_loose, !hop->has_sid, | |
701 | hop->has_attribs, /* C Flag */ | |
702 | hop->is_mpls, /* M Flag */ | |
703 | sid, | |
704 | &hop->nai.local_addr.ipaddr_v6, | |
705 | &hop->nai.remote_addr | |
706 | .ipaddr_v6); | |
707 | break; | |
708 | case PCEP_SR_SUBOBJ_NAI_UNNUMBERED_IPV4_ADJACENCY: | |
709 | ero_obj = (struct pcep_object_ro_subobj *) | |
710 | pcep_obj_create_ro_subobj_sr_unnumbered_ipv4_adj( | |
711 | hop->is_loose, !hop->has_sid, | |
712 | hop->has_attribs, /* C Flag */ | |
713 | hop->is_mpls, /* M Flag */ | |
714 | sid, | |
715 | hop->nai.local_addr.ipaddr_v4 | |
716 | .s_addr, | |
717 | hop->nai.local_iface, | |
718 | hop->nai.remote_addr.ipaddr_v4 | |
719 | .s_addr, | |
720 | hop->nai.remote_iface); | |
721 | break; | |
722 | default: | |
723 | break; | |
724 | } | |
725 | } | |
726 | if (ero_obj == NULL) { | |
727 | ero_obj = (struct pcep_object_ro_subobj *) | |
728 | pcep_obj_create_ro_subobj_sr_nonai( | |
729 | hop->is_loose, sid, | |
730 | hop->has_attribs, /* C Flag */ | |
731 | hop->is_mpls); /* M Flag */ | |
732 | } | |
733 | dll_append(ero_objs, ero_obj); | |
734 | } | |
735 | ero = pcep_obj_create_ero(ero_objs); | |
736 | assert(ero != NULL); | |
737 | ero->header.flag_p = true; | |
738 | dll_append(objs, ero); | |
739 | ||
740 | if (path->plsp_id == 0) { | |
741 | return objs; | |
742 | } | |
743 | ||
744 | pcep_lib_format_constraints(path, objs); | |
745 | ||
746 | return objs; | |
747 | } | |
748 | ||
749 | void pcep_lib_format_constraints(struct path *path, double_linked_list *objs) | |
750 | { | |
751 | struct pcep_object_metric *metric; | |
752 | struct pcep_object_bandwidth *bandwidth; | |
753 | struct pcep_object_lspa *lspa; | |
754 | ||
755 | /* LSPA object */ | |
756 | if (path->has_affinity_filters) { | |
757 | lspa = pcep_obj_create_lspa( | |
758 | path->affinity_filters[AFFINITY_FILTER_EXCLUDE_ANY - 1], | |
759 | path->affinity_filters[AFFINITY_FILTER_INCLUDE_ANY - 1], | |
760 | path->affinity_filters[AFFINITY_FILTER_INCLUDE_ALL - 1], | |
761 | DEFAULT_LSAP_SETUP_PRIO, DEFAULT_LSAP_HOLDING_PRIO, | |
762 | DEFAULT_LSAP_LOCAL_PRETECTION); | |
763 | assert(lspa != NULL); | |
764 | lspa->header.flag_p = true; | |
765 | dll_append(objs, lspa); | |
766 | } | |
767 | ||
768 | /* Bandwidth Objects */ | |
769 | if (path->has_bandwidth) { | |
770 | /* Requested Bandwidth */ | |
771 | bandwidth = pcep_obj_create_bandwidth(path->bandwidth); | |
772 | assert(bandwidth != NULL); | |
773 | bandwidth->header.flag_p = path->enforce_bandwidth; | |
774 | dll_append(objs, bandwidth); | |
775 | } | |
776 | ||
777 | /* Metric Objects */ | |
778 | for (struct path_metric *m = path->first_metric; m != NULL; | |
779 | m = m->next) { | |
780 | metric = pcep_obj_create_metric(m->type, m->is_bound, | |
781 | m->is_computed, m->value); | |
782 | assert(metric != NULL); | |
783 | metric->header.flag_p = m->enforce; | |
784 | dll_append(objs, metric); | |
785 | } | |
786 | } | |
787 | ||
788 | void pcep_lib_parse_open(struct pcep_caps *caps, struct pcep_object_open *open) | |
789 | { | |
790 | double_linked_list *tlvs = open->header.tlv_list; | |
791 | double_linked_list_node *node; | |
792 | struct pcep_object_tlv_header *tlv_header; | |
793 | ||
794 | caps->is_stateful = false; | |
795 | caps->supported_ofs_are_known = false; | |
796 | caps->supported_ofs = 0; | |
797 | ||
798 | for (node = tlvs->head; node != NULL; node = node->next_node) { | |
799 | tlv_header = (struct pcep_object_tlv_header *)node->data; | |
800 | switch (tlv_header->type) { | |
801 | case PCEP_OBJ_TLV_TYPE_STATEFUL_PCE_CAPABILITY: | |
802 | pcep_lib_parse_open_pce_capability(caps, tlv_header); | |
803 | break; | |
804 | case PCEP_OBJ_TLV_TYPE_SR_PCE_CAPABILITY: | |
805 | break; | |
806 | case PCEP_OBJ_TLV_TYPE_OBJECTIVE_FUNCTION_LIST: | |
807 | pcep_lib_parse_open_objfun_list(caps, tlv_header); | |
808 | break; | |
809 | default: | |
810 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_TLV, | |
811 | "Unexpected OPEN's TLV %s (%u)", | |
812 | pcep_tlv_type_name(tlv_header->type), | |
813 | tlv_header->type); | |
814 | break; | |
815 | } | |
816 | } | |
817 | } | |
818 | ||
819 | void pcep_lib_parse_open_pce_capability( | |
820 | struct pcep_caps *caps, struct pcep_object_tlv_header *tlv_header) | |
821 | { | |
822 | struct pcep_object_tlv_stateful_pce_capability *tlv; | |
823 | tlv = (struct pcep_object_tlv_stateful_pce_capability *)tlv_header; | |
824 | caps->is_stateful = tlv->flag_u_lsp_update_capability; | |
825 | } | |
826 | ||
827 | void pcep_lib_parse_open_objfun_list(struct pcep_caps *caps, | |
828 | struct pcep_object_tlv_header *tlv_header) | |
829 | { | |
830 | double_linked_list_node *node; | |
831 | struct pcep_object_tlv_of_list *tlv; | |
832 | tlv = (struct pcep_object_tlv_of_list *)tlv_header; | |
833 | uint16_t of_code; | |
834 | caps->supported_ofs_are_known = true; | |
835 | for (node = tlv->of_list->head; node != NULL; node = node->next_node) { | |
836 | of_code = *(uint16_t *)node->data; | |
837 | if (of_code >= 32) { | |
838 | zlog_warn( | |
839 | "Ignoring unexpected objective function with code %u", | |
840 | of_code); | |
841 | continue; | |
842 | } | |
843 | SET_FLAG(caps->supported_ofs, of_code); | |
844 | } | |
845 | } | |
846 | ||
847 | void pcep_lib_parse_rp(struct path *path, struct pcep_object_rp *rp) | |
848 | { | |
849 | double_linked_list *tlvs = rp->header.tlv_list; | |
850 | double_linked_list_node *node; | |
851 | struct pcep_object_tlv_header *tlv; | |
852 | ||
853 | /* We ignore the other flags and priority for now */ | |
854 | path->req_id = rp->request_id; | |
855 | path->has_pce_objfun = false; | |
856 | path->pce_objfun = OBJFUN_UNDEFINED; | |
857 | ||
858 | for (node = tlvs->head; node != NULL; node = node->next_node) { | |
859 | tlv = (struct pcep_object_tlv_header *)node->data; | |
860 | switch (tlv->type) { | |
861 | case PCEP_OBJ_TLV_TYPE_PATH_SETUP_TYPE: | |
862 | // TODO: enforce the path setup type is SR_TE_PST | |
863 | break; | |
864 | default: | |
865 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_TLV, | |
866 | "Unexpected RP's TLV %s (%u)", | |
867 | pcep_tlv_type_name(tlv->type), tlv->type); | |
868 | break; | |
869 | } | |
870 | } | |
871 | } | |
872 | ||
873 | void pcep_lib_parse_srp(struct path *path, struct pcep_object_srp *srp) | |
874 | { | |
875 | double_linked_list *tlvs = srp->header.tlv_list; | |
876 | double_linked_list_node *node; | |
877 | struct pcep_object_tlv_header *tlv; | |
878 | ||
879 | path->do_remove = srp->flag_lsp_remove; | |
880 | path->srp_id = srp->srp_id_number; | |
881 | ||
882 | for (node = tlvs->head; node != NULL; node = node->next_node) { | |
883 | tlv = (struct pcep_object_tlv_header *)node->data; | |
884 | switch (tlv->type) { | |
885 | case PCEP_OBJ_TLV_TYPE_PATH_SETUP_TYPE: | |
886 | // TODO: enforce the path setup type is SR_TE_PST | |
887 | break; | |
888 | default: | |
889 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_TLV, | |
890 | "Unexpected SRP's TLV %s (%u)", | |
891 | pcep_tlv_type_name(tlv->type), tlv->type); | |
892 | break; | |
893 | } | |
894 | } | |
895 | } | |
896 | ||
897 | void pcep_lib_parse_lsp(struct path *path, struct pcep_object_lsp *lsp) | |
898 | { | |
899 | double_linked_list *tlvs = lsp->header.tlv_list; | |
900 | double_linked_list_node *node; | |
901 | struct pcep_object_tlv_header *tlv; | |
902 | ||
903 | path->plsp_id = lsp->plsp_id; | |
904 | path->status = lsp->operational_status; | |
905 | path->go_active = lsp->flag_a; | |
906 | path->was_created = lsp->flag_c; | |
907 | path->was_removed = lsp->flag_r; | |
908 | path->is_synching = lsp->flag_s; | |
909 | path->is_delegated = lsp->flag_d; | |
910 | ||
911 | if (tlvs == NULL) | |
912 | return; | |
913 | ||
914 | for (node = tlvs->head; node != NULL; node = node->next_node) { | |
915 | tlv = (struct pcep_object_tlv_header *)node->data; | |
916 | switch (tlv->type) { | |
917 | default: | |
918 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_TLV, | |
919 | "Unexpected LSP TLV %s (%u)", | |
920 | pcep_tlv_type_name(tlv->type), tlv->type); | |
921 | break; | |
922 | } | |
923 | } | |
924 | } | |
925 | ||
926 | void pcep_lib_parse_lspa(struct path *path, struct pcep_object_lspa *lspa) | |
927 | { | |
928 | path->has_affinity_filters = true; | |
929 | path->affinity_filters[AFFINITY_FILTER_EXCLUDE_ANY - 1] = | |
930 | lspa->lspa_exclude_any; | |
931 | path->affinity_filters[AFFINITY_FILTER_INCLUDE_ANY - 1] = | |
932 | lspa->lspa_include_any; | |
933 | path->affinity_filters[AFFINITY_FILTER_INCLUDE_ALL - 1] = | |
934 | lspa->lspa_include_all; | |
935 | } | |
936 | ||
937 | void pcep_lib_parse_metric(struct path *path, struct pcep_object_metric *obj) | |
938 | { | |
939 | struct path_metric *metric; | |
940 | ||
941 | metric = pcep_new_metric(); | |
942 | metric->type = obj->type; | |
943 | metric->is_bound = obj->flag_b; | |
944 | metric->is_computed = obj->flag_c; | |
945 | metric->value = obj->value; | |
946 | metric->next = path->first_metric; | |
947 | path->first_metric = metric; | |
948 | } | |
949 | ||
950 | void pcep_lib_parse_ero(struct path *path, struct pcep_object_ro *ero) | |
951 | { | |
952 | struct path_hop *hop = NULL; | |
953 | double_linked_list *objs = ero->sub_objects; | |
954 | double_linked_list_node *node; | |
955 | struct pcep_object_ro_subobj *obj; | |
956 | ||
957 | for (node = objs->tail; node != NULL; node = node->prev_node) { | |
958 | obj = (struct pcep_object_ro_subobj *)node->data; | |
959 | switch (obj->ro_subobj_type) { | |
960 | case RO_SUBOBJ_TYPE_SR: | |
961 | hop = pcep_lib_parse_ero_sr( | |
962 | hop, (struct pcep_ro_subobj_sr *)obj); | |
963 | break; | |
964 | default: | |
965 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_ERO_SUBOBJ, | |
966 | "Unexpected ERO sub-object %s (%u)", | |
967 | pcep_ro_type_name(obj->ro_subobj_type), | |
968 | obj->ro_subobj_type); | |
969 | break; | |
970 | } | |
971 | } | |
972 | ||
973 | path->first_hop = hop; | |
974 | } | |
975 | ||
976 | struct path_hop *pcep_lib_parse_ero_sr(struct path_hop *next, | |
977 | struct pcep_ro_subobj_sr *sr) | |
978 | { | |
979 | struct path_hop *hop = NULL; | |
980 | union sid sid; | |
981 | ||
982 | /* Only support IPv4 node with SID */ | |
983 | assert(!sr->flag_s); | |
984 | ||
985 | if (sr->flag_m) { | |
986 | sid.mpls = (struct sid_mpls){ | |
987 | .label = GET_SR_ERO_SID_LABEL(sr->sid), | |
988 | .traffic_class = GET_SR_ERO_SID_TC(sr->sid), | |
989 | .is_bottom = GET_SR_ERO_SID_S(sr->sid), | |
990 | .ttl = GET_SR_ERO_SID_TTL(sr->sid)}; | |
991 | } else { | |
992 | sid.value = sr->sid; | |
993 | } | |
994 | ||
995 | hop = pcep_new_hop(); | |
996 | *hop = (struct path_hop){.next = next, | |
997 | .is_loose = | |
998 | sr->ro_subobj.flag_subobj_loose_hop, | |
999 | .has_sid = !sr->flag_s, | |
1000 | .is_mpls = sr->flag_m, | |
1001 | .has_attribs = sr->flag_c, | |
1002 | .sid = sid, | |
1003 | .has_nai = !sr->flag_f, | |
1004 | .nai = {.type = sr->nai_type}}; | |
1005 | ||
1006 | if (!sr->flag_f) { | |
1007 | assert(sr->nai_list != NULL); | |
1008 | double_linked_list_node *n = sr->nai_list->head; | |
1009 | assert(n != NULL); | |
1010 | assert(n->data != NULL); | |
1011 | switch (sr->nai_type) { | |
1012 | case PCEP_SR_SUBOBJ_NAI_IPV4_NODE: | |
1013 | hop->nai.local_addr.ipa_type = IPADDR_V4; | |
1014 | memcpy(&hop->nai.local_addr.ipaddr_v4, n->data, | |
1015 | sizeof(struct in_addr)); | |
1016 | break; | |
1017 | case PCEP_SR_SUBOBJ_NAI_IPV6_NODE: | |
1018 | hop->nai.local_addr.ipa_type = IPADDR_V6; | |
1019 | memcpy(&hop->nai.local_addr.ipaddr_v6, n->data, | |
1020 | sizeof(struct in6_addr)); | |
1021 | break; | |
1022 | case PCEP_SR_SUBOBJ_NAI_IPV4_ADJACENCY: | |
1023 | hop->nai.local_addr.ipa_type = IPADDR_V4; | |
1024 | memcpy(&hop->nai.local_addr.ipaddr_v4, n->data, | |
1025 | sizeof(struct in_addr)); | |
1026 | n = n->next_node; | |
1027 | assert(n != NULL); | |
1028 | assert(n->data != NULL); | |
1029 | hop->nai.remote_addr.ipa_type = IPADDR_V4; | |
1030 | memcpy(&hop->nai.remote_addr.ipaddr_v4, n->data, | |
1031 | sizeof(struct in_addr)); | |
1032 | break; | |
1033 | case PCEP_SR_SUBOBJ_NAI_IPV6_ADJACENCY: | |
1034 | hop->nai.local_addr.ipa_type = IPADDR_V6; | |
1035 | memcpy(&hop->nai.local_addr.ipaddr_v6, n->data, | |
1036 | sizeof(struct in6_addr)); | |
1037 | n = n->next_node; | |
1038 | assert(n != NULL); | |
1039 | assert(n->data != NULL); | |
1040 | hop->nai.remote_addr.ipa_type = IPADDR_V6; | |
1041 | memcpy(&hop->nai.remote_addr.ipaddr_v6, n->data, | |
1042 | sizeof(struct in6_addr)); | |
1043 | break; | |
1044 | case PCEP_SR_SUBOBJ_NAI_UNNUMBERED_IPV4_ADJACENCY: | |
1045 | hop->nai.local_addr.ipa_type = IPADDR_V4; | |
1046 | memcpy(&hop->nai.local_addr.ipaddr_v4, n->data, | |
1047 | sizeof(struct in_addr)); | |
1048 | n = n->next_node; | |
1049 | assert(n != NULL); | |
1050 | assert(n->data != NULL); | |
1051 | hop->nai.local_iface = *(uint32_t *)n->data; | |
1052 | n = n->next_node; | |
1053 | assert(n != NULL); | |
1054 | assert(n->data != NULL); | |
1055 | hop->nai.remote_addr.ipa_type = IPADDR_V4; | |
1056 | memcpy(&hop->nai.remote_addr.ipaddr_v4, n->data, | |
1057 | sizeof(struct in_addr)); | |
1058 | n = n->next_node; | |
1059 | assert(n != NULL); | |
1060 | assert(n->data != NULL); | |
1061 | hop->nai.remote_iface = *(uint32_t *)n->data; | |
1062 | break; | |
1063 | default: | |
1064 | hop->has_nai = false; | |
1065 | flog_warn(EC_PATH_PCEP_UNEXPECTED_SR_NAI, | |
1066 | "Unexpected SR segment NAI type %s (%u)", | |
1067 | pcep_nai_type_name(sr->nai_type), | |
1068 | sr->nai_type); | |
1069 | break; | |
1070 | } | |
1071 | } | |
1072 | ||
1073 | return hop; | |
1074 | } | |
1075 | ||
1076 | struct counters_group *copy_counter_group(struct counters_group *from) | |
1077 | { | |
1078 | int size, i; | |
1079 | struct counters_group *result; | |
1080 | if (from == NULL) | |
1081 | return NULL; | |
1082 | assert(from->max_subgroups >= from->num_subgroups); | |
1083 | result = XCALLOC(MTYPE_PCEP, sizeof(*result)); | |
1084 | memcpy(result, from, sizeof(*result)); | |
1085 | size = sizeof(struct counters_subgroup *) * (from->max_subgroups + 1); | |
1086 | result->subgroups = XCALLOC(MTYPE_PCEP, size); | |
1087 | for (i = 0; i <= from->max_subgroups; i++) | |
1088 | result->subgroups[i] = | |
1089 | copy_counter_subgroup(from->subgroups[i]); | |
1090 | return result; | |
1091 | } | |
1092 | ||
1093 | struct counters_subgroup *copy_counter_subgroup(struct counters_subgroup *from) | |
1094 | { | |
1095 | int size, i; | |
1096 | struct counters_subgroup *result; | |
1097 | if (from == NULL) | |
1098 | return NULL; | |
1099 | assert(from->max_counters >= from->num_counters); | |
1100 | result = XCALLOC(MTYPE_PCEP, sizeof(*result)); | |
1101 | memcpy(result, from, sizeof(*result)); | |
1102 | size = sizeof(struct counter *) * (from->max_counters + 1); | |
1103 | result->counters = XCALLOC(MTYPE_PCEP, size); | |
1104 | for (i = 0; i <= from->max_counters; i++) | |
1105 | result->counters[i] = copy_counter(from->counters[i]); | |
1106 | return result; | |
1107 | } | |
1108 | ||
1109 | struct counter *copy_counter(struct counter *from) | |
1110 | { | |
1111 | struct counter *result; | |
1112 | if (from == NULL) | |
1113 | return NULL; | |
1114 | result = XCALLOC(MTYPE_PCEP, sizeof(*result)); | |
1115 | memcpy(result, from, sizeof(*result)); | |
1116 | return result; | |
1117 | } | |
1118 | ||
1119 | void free_counter_group(struct counters_group *group) | |
1120 | { | |
1121 | int i; | |
1122 | if (group == NULL) | |
1123 | return; | |
1124 | for (i = 0; i <= group->max_subgroups; i++) | |
1125 | free_counter_subgroup(group->subgroups[i]); | |
1126 | XFREE(MTYPE_PCEP, group->subgroups); | |
1127 | XFREE(MTYPE_PCEP, group); | |
1128 | } | |
1129 | ||
1130 | void free_counter_subgroup(struct counters_subgroup *subgroup) | |
1131 | { | |
1132 | int i; | |
1133 | if (subgroup == NULL) | |
1134 | return; | |
1135 | for (i = 0; i <= subgroup->max_counters; i++) | |
1136 | free_counter(subgroup->counters[i]); | |
1137 | XFREE(MTYPE_PCEP, subgroup->counters); | |
1138 | XFREE(MTYPE_PCEP, subgroup); | |
1139 | } | |
1140 | ||
1141 | void free_counter(struct counter *counter) | |
1142 | { | |
1143 | if (counter == NULL) | |
1144 | return; | |
1145 | XFREE(MTYPE_PCEP, counter); | |
1146 | } |