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74971473 JG |
1 | /* |
2 | * This file is part of the PCEPlib, a PCEP protocol library. | |
3 | * | |
4 | * Copyright (C) 2020 Volta Networks https://voltanet.io/ | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public License | |
17 | * along with this program. If not, see <https://www.gnu.org/licenses/>. | |
18 | * | |
19 | * Author : Brady Johnson <brady@voltanet.io> | |
20 | * | |
21 | */ | |
22 | ||
23 | ||
24 | /* | |
25 | * This is the implementation of a High Level PCEP message object API. | |
26 | */ | |
27 | ||
1f8031f7 DL |
28 | #ifdef HAVE_CONFIG_H |
29 | #include "config.h" | |
30 | #endif | |
31 | ||
74971473 JG |
32 | #include <string.h> |
33 | #include <arpa/inet.h> | |
34 | #include <stdarg.h> | |
35 | #include <unistd.h> | |
36 | ||
37 | #include "pcep_msg_objects.h" | |
38 | #include "pcep_msg_tlvs.h" | |
39 | #include "pcep_utils_double_linked_list.h" | |
40 | #include "pcep_utils_logging.h" | |
41 | #include "pcep_utils_memory.h" | |
42 | ||
43 | /* Internal common function used to create a pcep_object and populate the header | |
44 | */ | |
45 | static struct pcep_object_header *pcep_obj_create_common_with_tlvs( | |
46 | uint8_t obj_length, enum pcep_object_classes object_class, | |
47 | enum pcep_object_types object_type, double_linked_list *tlv_list) | |
48 | { | |
49 | uint8_t *buffer = pceplib_malloc(PCEPLIB_MESSAGES, obj_length); | |
50 | memset(buffer, 0, obj_length); | |
51 | ||
52 | /* The flag_p and flag_i flags will be set externally */ | |
53 | struct pcep_object_header *hdr = (struct pcep_object_header *)buffer; | |
54 | hdr->object_class = object_class; | |
55 | hdr->object_type = object_type; | |
56 | hdr->tlv_list = tlv_list; | |
57 | ||
58 | return hdr; | |
59 | } | |
60 | ||
61 | static struct pcep_object_header * | |
62 | pcep_obj_create_common(uint8_t obj_length, | |
63 | enum pcep_object_classes object_class, | |
64 | enum pcep_object_types object_type) | |
65 | { | |
66 | return pcep_obj_create_common_with_tlvs(obj_length, object_class, | |
67 | object_type, NULL); | |
68 | } | |
69 | ||
70 | struct pcep_object_open *pcep_obj_create_open(uint8_t keepalive, | |
71 | uint8_t deadtimer, uint8_t sid, | |
72 | double_linked_list *tlv_list) | |
73 | { | |
74 | struct pcep_object_open *open = | |
75 | (struct pcep_object_open *)pcep_obj_create_common_with_tlvs( | |
76 | sizeof(struct pcep_object_open), PCEP_OBJ_CLASS_OPEN, | |
77 | PCEP_OBJ_TYPE_OPEN, tlv_list); | |
78 | ||
79 | open->open_version = | |
80 | PCEP_OBJECT_OPEN_VERSION; /* PCEP version. Current version is 1 | |
81 | /No flags are currently defined. */ | |
82 | open->open_keepalive = | |
83 | keepalive; /* Maximum period of time between two consecutive | |
84 | PCEP messages sent by the sender. */ | |
85 | open->open_deadtimer = deadtimer; /* Specifies the amount of time before | |
86 | closing the session down. */ | |
87 | open->open_sid = sid; /* PCEP session number that identifies the current | |
88 | session. */ | |
89 | ||
90 | return open; | |
91 | } | |
92 | ||
93 | struct pcep_object_rp *pcep_obj_create_rp(uint8_t priority, bool flag_r, | |
94 | bool flag_b, bool flag_s, | |
95 | bool flag_of, uint32_t reqid, | |
96 | double_linked_list *tlv_list) | |
97 | { | |
98 | if (priority > OBJECT_RP_MAX_PRIORITY) { | |
99 | pcep_log( | |
100 | LOG_INFO, | |
101 | "%s: Error creating RP object, invalid priority [%d], max priority [%d].", | |
102 | __func__, priority, OBJECT_RP_MAX_PRIORITY); | |
103 | return NULL; | |
104 | } | |
105 | ||
106 | struct pcep_object_rp *obj = | |
107 | (struct pcep_object_rp *)pcep_obj_create_common_with_tlvs( | |
108 | sizeof(struct pcep_object_rp), PCEP_OBJ_CLASS_RP, | |
109 | PCEP_OBJ_TYPE_RP, tlv_list); | |
110 | ||
111 | obj->priority = priority; | |
112 | obj->flag_reoptimization = flag_r; | |
113 | obj->flag_bidirectional = flag_b; | |
114 | obj->flag_strict = flag_s; | |
115 | obj->flag_of = flag_of; | |
116 | obj->request_id = reqid; | |
117 | ||
118 | return obj; | |
119 | } | |
120 | ||
121 | struct pcep_object_notify * | |
122 | pcep_obj_create_notify(enum pcep_notification_types notification_type, | |
123 | enum pcep_notification_values notification_value) | |
124 | { | |
125 | struct pcep_object_notify *obj = | |
126 | (struct pcep_object_notify *)pcep_obj_create_common( | |
127 | sizeof(struct pcep_object_notify), PCEP_OBJ_CLASS_NOTF, | |
128 | PCEP_OBJ_TYPE_NOTF); | |
129 | ||
130 | obj->notification_type = notification_type; | |
131 | obj->notification_value = notification_value; | |
132 | ||
133 | return obj; | |
134 | } | |
135 | ||
136 | struct pcep_object_nopath * | |
137 | pcep_obj_create_nopath(uint8_t ni, bool flag_c, | |
138 | enum pcep_nopath_tlv_err_codes error_code) | |
139 | { | |
140 | struct pcep_object_tlv_nopath_vector *tlv = | |
141 | pcep_tlv_create_nopath_vector(error_code); | |
142 | double_linked_list *tlv_list = dll_initialize(); | |
143 | dll_append(tlv_list, tlv); | |
144 | ||
145 | struct pcep_object_nopath *obj = | |
146 | (struct pcep_object_nopath *)pcep_obj_create_common_with_tlvs( | |
147 | sizeof(struct pcep_object_nopath), | |
148 | PCEP_OBJ_CLASS_NOPATH, PCEP_OBJ_TYPE_NOPATH, tlv_list); | |
149 | ||
150 | obj->ni = ni; | |
151 | obj->flag_c = flag_c; | |
152 | obj->err_code = error_code; | |
153 | ||
154 | return obj; | |
155 | } | |
156 | ||
157 | struct pcep_object_association_ipv4 * | |
158 | pcep_obj_create_association_ipv4(bool r_flag, uint16_t association_type, | |
159 | uint16_t association_id, struct in_addr src) | |
160 | { | |
161 | struct pcep_object_association_ipv4 *obj = | |
162 | (struct pcep_object_association_ipv4 *)pcep_obj_create_common( | |
163 | sizeof(struct pcep_object_association_ipv4), | |
164 | PCEP_OBJ_CLASS_ASSOCIATION, | |
165 | PCEP_OBJ_TYPE_ASSOCIATION_IPV4); | |
166 | ||
167 | obj->R_flag = r_flag; | |
168 | obj->association_type = association_type; | |
169 | obj->association_id = association_id; | |
170 | obj->src = src; | |
171 | ||
172 | return obj; | |
173 | } | |
174 | struct pcep_object_association_ipv6 * | |
175 | pcep_obj_create_association_ipv6(bool r_flag, uint16_t association_type, | |
176 | uint16_t association_id, struct in6_addr src) | |
177 | { | |
178 | struct pcep_object_association_ipv6 *obj = | |
179 | (struct pcep_object_association_ipv6 *)pcep_obj_create_common( | |
180 | sizeof(struct pcep_object_association_ipv6), | |
181 | PCEP_OBJ_CLASS_ASSOCIATION, | |
182 | PCEP_OBJ_TYPE_ASSOCIATION_IPV6); | |
183 | ||
184 | obj->R_flag = r_flag; | |
185 | obj->association_type = association_type; | |
186 | obj->association_id = association_id; | |
187 | obj->src = src; | |
188 | ||
189 | return obj; | |
190 | } | |
191 | struct pcep_object_endpoints_ipv4 * | |
192 | pcep_obj_create_endpoint_ipv4(const struct in_addr *src_ipv4, | |
193 | const struct in_addr *dst_ipv4) | |
194 | { | |
195 | if (src_ipv4 == NULL || dst_ipv4 == NULL) { | |
196 | return NULL; | |
197 | } | |
198 | ||
199 | struct pcep_object_endpoints_ipv4 *obj = | |
200 | (struct pcep_object_endpoints_ipv4 *)pcep_obj_create_common( | |
201 | sizeof(struct pcep_object_endpoints_ipv4), | |
202 | PCEP_OBJ_CLASS_ENDPOINTS, PCEP_OBJ_TYPE_ENDPOINT_IPV4); | |
203 | ||
204 | obj->src_ipv4.s_addr = src_ipv4->s_addr; | |
205 | obj->dst_ipv4.s_addr = dst_ipv4->s_addr; | |
206 | ||
207 | return obj; | |
208 | } | |
209 | ||
210 | struct pcep_object_endpoints_ipv6 * | |
211 | pcep_obj_create_endpoint_ipv6(const struct in6_addr *src_ipv6, | |
212 | const struct in6_addr *dst_ipv6) | |
213 | { | |
214 | if (src_ipv6 == NULL || dst_ipv6 == NULL) { | |
215 | return NULL; | |
216 | } | |
217 | ||
218 | struct pcep_object_endpoints_ipv6 *obj = | |
219 | (struct pcep_object_endpoints_ipv6 *)pcep_obj_create_common( | |
220 | sizeof(struct pcep_object_endpoints_ipv6), | |
221 | PCEP_OBJ_CLASS_ENDPOINTS, PCEP_OBJ_TYPE_ENDPOINT_IPV6); | |
222 | ||
223 | memcpy(&obj->src_ipv6, src_ipv6, sizeof(struct in6_addr)); | |
224 | memcpy(&obj->dst_ipv6, dst_ipv6, sizeof(struct in6_addr)); | |
225 | ||
226 | return obj; | |
227 | } | |
228 | ||
229 | struct pcep_object_bandwidth *pcep_obj_create_bandwidth(float bandwidth) | |
230 | { | |
231 | struct pcep_object_bandwidth *obj = | |
232 | (struct pcep_object_bandwidth *)pcep_obj_create_common( | |
233 | sizeof(struct pcep_object_bandwidth), | |
234 | PCEP_OBJ_CLASS_BANDWIDTH, PCEP_OBJ_TYPE_BANDWIDTH_REQ); | |
235 | ||
236 | obj->bandwidth = bandwidth; | |
237 | ||
238 | return obj; | |
239 | } | |
240 | ||
241 | struct pcep_object_metric *pcep_obj_create_metric(enum pcep_metric_types type, | |
242 | bool flag_b, bool flag_c, | |
243 | float value) | |
244 | { | |
245 | struct pcep_object_metric *obj = | |
246 | (struct pcep_object_metric *)pcep_obj_create_common( | |
247 | sizeof(struct pcep_object_metric), | |
248 | PCEP_OBJ_CLASS_METRIC, PCEP_OBJ_TYPE_METRIC); | |
249 | ||
250 | obj->flag_b = flag_b; | |
251 | obj->flag_c = flag_c; | |
252 | obj->type = type; | |
253 | obj->value = value; | |
254 | ||
255 | return obj; | |
256 | } | |
257 | ||
258 | struct pcep_object_lspa * | |
259 | pcep_obj_create_lspa(uint32_t exclude_any, uint32_t include_any, | |
260 | uint32_t include_all, uint8_t setup_priority, | |
261 | uint8_t holding_priority, bool flag_local_protection) | |
262 | { | |
263 | struct pcep_object_lspa *obj = | |
264 | (struct pcep_object_lspa *)pcep_obj_create_common( | |
265 | sizeof(struct pcep_object_lspa), PCEP_OBJ_CLASS_LSPA, | |
266 | PCEP_OBJ_TYPE_LSPA); | |
267 | ||
268 | obj->lspa_exclude_any = exclude_any; | |
269 | obj->lspa_include_any = include_any; | |
270 | obj->lspa_include_all = include_all; | |
271 | obj->setup_priority = setup_priority; | |
272 | obj->holding_priority = holding_priority; | |
273 | obj->flag_local_protection = flag_local_protection; | |
274 | ||
275 | return obj; | |
276 | } | |
277 | ||
278 | struct pcep_object_svec * | |
279 | pcep_obj_create_svec(bool srlg, bool node, bool link, | |
280 | double_linked_list *request_id_list) | |
281 | { | |
282 | if (request_id_list == NULL) { | |
283 | return NULL; | |
284 | } | |
285 | ||
286 | struct pcep_object_svec *obj = | |
287 | (struct pcep_object_svec *)pcep_obj_create_common( | |
288 | sizeof(struct pcep_object_svec), PCEP_OBJ_CLASS_SVEC, | |
289 | PCEP_OBJ_TYPE_SVEC); | |
290 | ||
291 | obj->flag_srlg_diverse = srlg; | |
292 | obj->flag_node_diverse = node; | |
293 | obj->flag_link_diverse = link; | |
294 | obj->request_id_list = request_id_list; | |
295 | ||
296 | return obj; | |
297 | } | |
298 | ||
299 | struct pcep_object_error * | |
300 | pcep_obj_create_error(enum pcep_error_type error_type, | |
301 | enum pcep_error_value error_value) | |
302 | { | |
303 | struct pcep_object_error *obj = | |
304 | (struct pcep_object_error *)pcep_obj_create_common( | |
305 | sizeof(struct pcep_object_error), PCEP_OBJ_CLASS_ERROR, | |
306 | PCEP_OBJ_TYPE_ERROR); | |
307 | ||
308 | obj->error_type = error_type; | |
309 | obj->error_value = error_value; | |
310 | ||
311 | return obj; | |
312 | } | |
313 | ||
314 | struct pcep_object_close *pcep_obj_create_close(enum pcep_close_reason reason) | |
315 | { | |
316 | struct pcep_object_close *obj = | |
317 | (struct pcep_object_close *)pcep_obj_create_common( | |
318 | sizeof(struct pcep_object_close), PCEP_OBJ_CLASS_CLOSE, | |
319 | PCEP_OBJ_TYPE_CLOSE); | |
320 | ||
321 | obj->reason = reason; | |
322 | ||
323 | return obj; | |
324 | } | |
325 | ||
326 | struct pcep_object_srp *pcep_obj_create_srp(bool lsp_remove, | |
327 | uint32_t srp_id_number, | |
328 | double_linked_list *tlv_list) | |
329 | { | |
330 | struct pcep_object_srp *obj = | |
331 | (struct pcep_object_srp *)pcep_obj_create_common_with_tlvs( | |
332 | sizeof(struct pcep_object_srp), PCEP_OBJ_CLASS_SRP, | |
333 | PCEP_OBJ_TYPE_SRP, tlv_list); | |
334 | ||
335 | obj->flag_lsp_remove = lsp_remove; | |
336 | obj->srp_id_number = srp_id_number; | |
337 | ||
338 | return obj; | |
339 | } | |
340 | ||
341 | struct pcep_object_lsp * | |
342 | pcep_obj_create_lsp(uint32_t plsp_id, enum pcep_lsp_operational_status status, | |
343 | bool c_flag, bool a_flag, bool r_flag, bool s_flag, | |
344 | bool d_flag, double_linked_list *tlv_list) | |
345 | { | |
346 | /* The plsp_id is only 20 bits */ | |
347 | if (plsp_id > MAX_PLSP_ID) { | |
348 | pcep_log( | |
349 | LOG_INFO, | |
350 | "%s: pcep_obj_create_lsp invalid plsp_id [%d] max value [%d]", | |
351 | __func__, plsp_id, MAX_PLSP_ID); | |
352 | return NULL; | |
353 | } | |
354 | ||
355 | /* The status is only 3 bits */ | |
356 | if (status > MAX_LSP_STATUS) { | |
357 | pcep_log( | |
358 | LOG_INFO, | |
359 | "%s: pcep_obj_create_lsp invalid status [%d] max value [%d]", | |
360 | __func__, plsp_id, MAX_PLSP_ID); | |
361 | return NULL; | |
362 | } | |
363 | ||
364 | struct pcep_object_lsp *obj = | |
365 | (struct pcep_object_lsp *)pcep_obj_create_common_with_tlvs( | |
366 | sizeof(struct pcep_object_lsp), PCEP_OBJ_CLASS_LSP, | |
367 | PCEP_OBJ_TYPE_LSP, tlv_list); | |
368 | ||
369 | obj->plsp_id = plsp_id; | |
370 | obj->operational_status = status; | |
371 | obj->flag_c = c_flag; | |
372 | obj->flag_a = a_flag; | |
373 | obj->flag_r = r_flag; | |
374 | obj->flag_s = s_flag; | |
375 | obj->flag_d = d_flag; | |
376 | ||
377 | return obj; | |
378 | } | |
379 | ||
380 | struct pcep_object_vendor_info * | |
381 | pcep_obj_create_vendor_info(uint32_t enterprise_number, | |
382 | uint32_t enterprise_spec_info) | |
383 | { | |
384 | struct pcep_object_vendor_info *obj = | |
385 | (struct pcep_object_vendor_info *)pcep_obj_create_common( | |
386 | sizeof(struct pcep_object_vendor_info), | |
387 | PCEP_OBJ_CLASS_VENDOR_INFO, PCEP_OBJ_TYPE_VENDOR_INFO); | |
388 | ||
389 | obj->enterprise_number = enterprise_number; | |
390 | obj->enterprise_specific_info = enterprise_spec_info; | |
391 | ||
392 | return obj; | |
393 | } | |
394 | ||
395 | struct pcep_object_inter_layer * | |
396 | pcep_obj_create_inter_layer(bool flag_i, bool flag_m, bool flag_t) | |
397 | { | |
398 | struct pcep_object_inter_layer *obj = | |
399 | (struct pcep_object_inter_layer *)pcep_obj_create_common( | |
400 | sizeof(struct pcep_object_inter_layer), | |
401 | PCEP_OBJ_CLASS_INTER_LAYER, PCEP_OBJ_TYPE_INTER_LAYER); | |
402 | ||
403 | obj->flag_i = flag_i; | |
404 | obj->flag_m = flag_m; | |
405 | obj->flag_t = flag_t; | |
406 | ||
407 | return obj; | |
408 | } | |
409 | ||
410 | struct pcep_object_switch_layer * | |
411 | pcep_obj_create_switch_layer(double_linked_list *switch_layer_rows) | |
412 | { | |
413 | struct pcep_object_switch_layer *obj = | |
414 | (struct pcep_object_switch_layer *)pcep_obj_create_common( | |
415 | sizeof(struct pcep_object_switch_layer), | |
416 | PCEP_OBJ_CLASS_SWITCH_LAYER, | |
417 | PCEP_OBJ_TYPE_SWITCH_LAYER); | |
418 | ||
419 | obj->switch_layer_rows = switch_layer_rows; | |
420 | ||
421 | return obj; | |
422 | } | |
423 | ||
424 | struct pcep_object_req_adap_cap * | |
425 | pcep_obj_create_req_adap_cap(enum pcep_switching_capability sw_cap, | |
426 | enum pcep_lsp_encoding_type encoding) | |
427 | { | |
428 | struct pcep_object_req_adap_cap *obj = | |
429 | (struct pcep_object_req_adap_cap *)pcep_obj_create_common( | |
430 | sizeof(struct pcep_object_req_adap_cap), | |
431 | PCEP_OBJ_CLASS_REQ_ADAP_CAP, | |
432 | PCEP_OBJ_TYPE_REQ_ADAP_CAP); | |
433 | ||
434 | obj->switching_capability = sw_cap; | |
435 | obj->encoding = encoding; | |
436 | ||
437 | return obj; | |
438 | } | |
439 | ||
440 | struct pcep_object_server_indication * | |
441 | pcep_obj_create_server_indication(enum pcep_switching_capability sw_cap, | |
442 | enum pcep_lsp_encoding_type encoding, | |
443 | double_linked_list *tlv_list) | |
444 | { | |
445 | struct pcep_object_server_indication *obj = | |
446 | (struct pcep_object_server_indication *) | |
447 | pcep_obj_create_common_with_tlvs( | |
448 | sizeof(struct pcep_object_server_indication), | |
449 | PCEP_OBJ_CLASS_SERVER_IND, | |
450 | PCEP_OBJ_TYPE_SERVER_IND, tlv_list); | |
451 | ||
452 | obj->switching_capability = sw_cap; | |
453 | obj->encoding = encoding; | |
454 | ||
455 | return obj; | |
456 | } | |
457 | ||
458 | struct pcep_object_objective_function * | |
459 | pcep_obj_create_objective_function(uint16_t of_code, | |
460 | double_linked_list *tlv_list) | |
461 | { | |
462 | struct pcep_object_objective_function *obj = | |
463 | (struct pcep_object_objective_function *) | |
464 | pcep_obj_create_common_with_tlvs( | |
465 | sizeof(struct pcep_object_objective_function), | |
466 | PCEP_OBJ_CLASS_OF, PCEP_OBJ_TYPE_OF, tlv_list); | |
467 | ||
468 | obj->of_code = of_code; | |
469 | ||
470 | return obj; | |
471 | } | |
472 | ||
473 | /* Wrap a list of ro subobjects in a structure with an object header */ | |
474 | struct pcep_object_ro *pcep_obj_create_ero(double_linked_list *ero_list) | |
475 | { | |
476 | struct pcep_object_ro *ero = | |
477 | (struct pcep_object_ro *)pcep_obj_create_common( | |
478 | sizeof(struct pcep_object_ro), PCEP_OBJ_CLASS_ERO, | |
479 | PCEP_OBJ_TYPE_ERO); | |
480 | ero->sub_objects = ero_list; | |
481 | ||
482 | return ero; | |
483 | } | |
484 | ||
485 | /* Wrap a list of ro subobjects in a structure with an object header */ | |
486 | struct pcep_object_ro *pcep_obj_create_iro(double_linked_list *iro_list) | |
487 | { | |
488 | struct pcep_object_ro *iro = | |
489 | (struct pcep_object_ro *)pcep_obj_create_common( | |
490 | sizeof(struct pcep_object_ro), PCEP_OBJ_CLASS_IRO, | |
491 | PCEP_OBJ_TYPE_IRO); | |
492 | iro->sub_objects = iro_list; | |
493 | ||
494 | return iro; | |
495 | } | |
496 | ||
497 | /* Wrap a list of ro subobjects in a structure with an object header */ | |
498 | struct pcep_object_ro *pcep_obj_create_rro(double_linked_list *rro_list) | |
499 | { | |
500 | struct pcep_object_ro *rro = | |
501 | (struct pcep_object_ro *)pcep_obj_create_common( | |
502 | sizeof(struct pcep_object_ro), PCEP_OBJ_CLASS_RRO, | |
503 | PCEP_OBJ_TYPE_RRO); | |
504 | rro->sub_objects = rro_list; | |
505 | ||
506 | return rro; | |
507 | } | |
508 | ||
509 | /* | |
510 | * Route Object Sub-object creation functions | |
511 | */ | |
512 | ||
513 | static struct pcep_object_ro_subobj * | |
514 | pcep_obj_create_ro_subobj_common(uint8_t subobj_size, | |
515 | enum pcep_ro_subobj_types ro_subobj_type, | |
516 | bool flag_subobj_loose_hop) | |
517 | { | |
518 | struct pcep_object_ro_subobj *ro_subobj = | |
519 | pceplib_malloc(PCEPLIB_MESSAGES, subobj_size); | |
520 | memset(ro_subobj, 0, subobj_size); | |
521 | ro_subobj->flag_subobj_loose_hop = flag_subobj_loose_hop; | |
522 | ro_subobj->ro_subobj_type = ro_subobj_type; | |
523 | ||
524 | return ro_subobj; | |
525 | } | |
526 | ||
527 | struct pcep_ro_subobj_ipv4 * | |
528 | pcep_obj_create_ro_subobj_ipv4(bool loose_hop, const struct in_addr *rro_ipv4, | |
529 | uint8_t prefix_length, bool flag_local_prot) | |
530 | { | |
531 | if (rro_ipv4 == NULL) { | |
532 | return NULL; | |
533 | } | |
534 | ||
535 | struct pcep_ro_subobj_ipv4 *obj = | |
536 | (struct pcep_ro_subobj_ipv4 *)pcep_obj_create_ro_subobj_common( | |
537 | sizeof(struct pcep_ro_subobj_ipv4), RO_SUBOBJ_TYPE_IPV4, | |
538 | loose_hop); | |
539 | obj->ip_addr.s_addr = rro_ipv4->s_addr; | |
540 | obj->prefix_length = prefix_length; | |
541 | obj->flag_local_protection = flag_local_prot; | |
542 | ||
543 | return obj; | |
544 | } | |
545 | ||
546 | struct pcep_ro_subobj_ipv6 * | |
547 | pcep_obj_create_ro_subobj_ipv6(bool loose_hop, const struct in6_addr *rro_ipv6, | |
548 | uint8_t prefix_length, bool flag_local_prot) | |
549 | { | |
550 | if (rro_ipv6 == NULL) { | |
551 | return NULL; | |
552 | } | |
553 | ||
554 | struct pcep_ro_subobj_ipv6 *obj = | |
555 | (struct pcep_ro_subobj_ipv6 *)pcep_obj_create_ro_subobj_common( | |
556 | sizeof(struct pcep_ro_subobj_ipv6), RO_SUBOBJ_TYPE_IPV6, | |
557 | loose_hop); | |
558 | obj->prefix_length = prefix_length; | |
559 | obj->flag_local_protection = flag_local_prot; | |
560 | memcpy(&obj->ip_addr, rro_ipv6, sizeof(struct in6_addr)); | |
561 | ||
562 | return obj; | |
563 | } | |
564 | ||
565 | struct pcep_ro_subobj_unnum * | |
566 | pcep_obj_create_ro_subobj_unnum(struct in_addr *router_id, uint32_t if_id) | |
567 | { | |
568 | if (router_id == NULL) { | |
569 | return NULL; | |
570 | } | |
571 | ||
572 | struct pcep_ro_subobj_unnum *obj = | |
573 | (struct pcep_ro_subobj_unnum *)pcep_obj_create_ro_subobj_common( | |
574 | sizeof(struct pcep_ro_subobj_unnum), | |
575 | RO_SUBOBJ_TYPE_UNNUM, false); | |
576 | obj->interface_id = if_id; | |
577 | obj->router_id.s_addr = router_id->s_addr; | |
578 | ||
579 | return obj; | |
580 | } | |
581 | ||
582 | struct pcep_ro_subobj_32label * | |
583 | pcep_obj_create_ro_subobj_32label(bool flag_global_label, uint8_t class_type, | |
584 | uint32_t label) | |
585 | { | |
586 | struct pcep_ro_subobj_32label *obj = (struct pcep_ro_subobj_32label *) | |
587 | pcep_obj_create_ro_subobj_common( | |
588 | sizeof(struct pcep_ro_subobj_32label), | |
589 | RO_SUBOBJ_TYPE_LABEL, false); | |
590 | obj->class_type = class_type; | |
591 | obj->flag_global_label = flag_global_label; | |
592 | obj->label = label; | |
593 | ||
594 | return obj; | |
595 | } | |
596 | ||
597 | struct pcep_ro_subobj_asn *pcep_obj_create_ro_subobj_asn(uint16_t asn) | |
598 | { | |
599 | struct pcep_ro_subobj_asn *obj = | |
600 | (struct pcep_ro_subobj_asn *)pcep_obj_create_ro_subobj_common( | |
601 | sizeof(struct pcep_ro_subobj_asn), RO_SUBOBJ_TYPE_ASN, | |
602 | false); | |
603 | obj->asn = asn; | |
604 | ||
605 | return obj; | |
606 | } | |
607 | ||
608 | /* Internal util function to create pcep_ro_subobj_sr sub-objects */ | |
609 | static struct pcep_ro_subobj_sr * | |
610 | pcep_obj_create_ro_subobj_sr_common(enum pcep_sr_subobj_nai nai_type, | |
611 | bool loose_hop, bool f_flag, bool s_flag, | |
612 | bool c_flag_in, bool m_flag_in) | |
613 | { | |
614 | struct pcep_ro_subobj_sr *obj = | |
615 | (struct pcep_ro_subobj_sr *)pcep_obj_create_ro_subobj_common( | |
616 | sizeof(struct pcep_ro_subobj_sr), RO_SUBOBJ_TYPE_SR, | |
617 | loose_hop); | |
618 | ||
619 | /* Flag logic according to draft-ietf-pce-segment-routing-16 */ | |
620 | bool c_flag = c_flag_in; | |
621 | bool m_flag = m_flag_in; | |
622 | if (s_flag) { | |
623 | c_flag = false; | |
624 | m_flag = false; | |
625 | } | |
626 | ||
627 | if (m_flag == false) { | |
628 | c_flag = false; | |
629 | } | |
630 | ||
631 | obj->nai_type = nai_type; | |
632 | obj->flag_f = f_flag; | |
633 | obj->flag_s = s_flag; | |
634 | obj->flag_c = c_flag; | |
635 | obj->flag_m = m_flag; | |
636 | ||
637 | return obj; | |
638 | } | |
639 | ||
640 | struct pcep_ro_subobj_sr *pcep_obj_create_ro_subobj_sr_nonai(bool loose_hop, | |
641 | uint32_t sid, | |
642 | bool c_flag, | |
643 | bool m_flag) | |
644 | { | |
645 | /* According to draft-ietf-pce-segment-routing-16#section-5.2.1 | |
646 | * If NT=0, the F bit MUST be 1, the S bit MUST be zero and the | |
647 | * Length MUST be 8. */ | |
648 | struct pcep_ro_subobj_sr *obj = pcep_obj_create_ro_subobj_sr_common( | |
649 | PCEP_SR_SUBOBJ_NAI_ABSENT, loose_hop, true, false, c_flag, | |
650 | m_flag); | |
651 | obj->sid = sid; | |
652 | ||
653 | return obj; | |
654 | } | |
655 | ||
656 | struct pcep_ro_subobj_sr * | |
657 | pcep_obj_create_ro_subobj_sr_ipv4_node(bool loose_hop, bool sid_absent, | |
658 | bool c_flag, bool m_flag, uint32_t sid, | |
659 | struct in_addr *ipv4_node_id) | |
660 | { | |
661 | if (ipv4_node_id == NULL) { | |
662 | return NULL; | |
663 | } | |
664 | ||
665 | /* According to draft-ietf-pce-segment-routing-16#section-5.2.1 | |
666 | * If NT=1, the F bit MUST be zero. If the S bit is 1, the Length | |
667 | * MUST be 8, otherwise the Length MUST be 12 */ | |
668 | struct pcep_ro_subobj_sr *obj = pcep_obj_create_ro_subobj_sr_common( | |
669 | PCEP_SR_SUBOBJ_NAI_IPV4_NODE, loose_hop, false, sid_absent, | |
670 | c_flag, m_flag); | |
671 | ||
672 | if (!sid_absent) { | |
673 | obj->sid = sid; | |
674 | } | |
675 | obj->nai_list = dll_initialize(); | |
676 | /* Since the IP has to be stored in the list, copy it so the caller | |
4c98b89e DS |
677 | * doesn't have any restrictions about the type of memory used |
678 | * externally for the IP. This memory will be freed with the object is | |
679 | * freed. */ | |
74971473 JG |
680 | struct in_addr *ipv4_node_id_copy = |
681 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(struct in_addr)); | |
682 | ipv4_node_id_copy->s_addr = ipv4_node_id->s_addr; | |
683 | dll_append(obj->nai_list, ipv4_node_id_copy); | |
684 | ||
685 | return obj; | |
686 | } | |
687 | ||
688 | struct pcep_ro_subobj_sr * | |
689 | pcep_obj_create_ro_subobj_sr_ipv6_node(bool loose_hop, bool sid_absent, | |
690 | bool c_flag, bool m_flag, uint32_t sid, | |
691 | struct in6_addr *ipv6_node_id) | |
692 | { | |
693 | if (ipv6_node_id == NULL) { | |
694 | return NULL; | |
695 | } | |
696 | ||
697 | /* According to draft-ietf-pce-segment-routing-16#section-5.2.1 | |
698 | * If NT=2, the F bit MUST be zero. If the S bit is 1, the Length | |
699 | * MUST be 20, otherwise the Length MUST be 24. */ | |
700 | struct pcep_ro_subobj_sr *obj = pcep_obj_create_ro_subobj_sr_common( | |
701 | PCEP_SR_SUBOBJ_NAI_IPV6_NODE, loose_hop, false, sid_absent, | |
702 | c_flag, m_flag); | |
703 | ||
704 | if (!sid_absent) { | |
705 | obj->sid = sid; | |
706 | } | |
707 | obj->nai_list = dll_initialize(); | |
708 | struct in6_addr *ipv6_node_id_copy = | |
709 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(struct in6_addr)); | |
710 | memcpy(ipv6_node_id_copy, ipv6_node_id, sizeof(struct in6_addr)); | |
711 | dll_append(obj->nai_list, ipv6_node_id_copy); | |
712 | ||
713 | return obj; | |
714 | } | |
715 | ||
716 | struct pcep_ro_subobj_sr *pcep_obj_create_ro_subobj_sr_ipv4_adj( | |
717 | bool loose_hop, bool sid_absent, bool c_flag, bool m_flag, uint32_t sid, | |
718 | struct in_addr *local_ipv4, struct in_addr *remote_ipv4) | |
719 | { | |
720 | if (local_ipv4 == NULL || remote_ipv4 == NULL) { | |
721 | return NULL; | |
722 | } | |
723 | ||
724 | /* According to draft-ietf-pce-segment-routing-16#section-5.2.1 | |
725 | * If NT=3, the F bit MUST be zero. If the S bit is 1, the Length | |
726 | * MUST be 12, otherwise the Length MUST be 16 */ | |
727 | struct pcep_ro_subobj_sr *obj = pcep_obj_create_ro_subobj_sr_common( | |
728 | PCEP_SR_SUBOBJ_NAI_IPV4_ADJACENCY, loose_hop, false, sid_absent, | |
729 | c_flag, m_flag); | |
730 | ||
731 | if (!sid_absent) { | |
732 | obj->sid = sid; | |
733 | } | |
734 | obj->nai_list = dll_initialize(); | |
735 | struct in_addr *local_ipv4_copy = | |
736 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(struct in_addr)); | |
737 | struct in_addr *remote_ipv4_copy = | |
738 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(struct in_addr)); | |
739 | local_ipv4_copy->s_addr = local_ipv4->s_addr; | |
740 | remote_ipv4_copy->s_addr = remote_ipv4->s_addr; | |
741 | dll_append(obj->nai_list, local_ipv4_copy); | |
742 | dll_append(obj->nai_list, remote_ipv4_copy); | |
743 | ||
744 | return obj; | |
745 | } | |
746 | ||
747 | struct pcep_ro_subobj_sr *pcep_obj_create_ro_subobj_sr_ipv6_adj( | |
748 | bool loose_hop, bool sid_absent, bool c_flag, bool m_flag, uint32_t sid, | |
749 | struct in6_addr *local_ipv6, struct in6_addr *remote_ipv6) | |
750 | { | |
751 | if (local_ipv6 == NULL || remote_ipv6 == NULL) { | |
752 | return NULL; | |
753 | } | |
754 | ||
755 | /* According to draft-ietf-pce-segment-routing-16#section-5.2.1 | |
756 | * If NT=4, the F bit MUST be zero. If the S bit is 1, the Length | |
757 | * MUST be 36, otherwise the Length MUST be 40 */ | |
758 | struct pcep_ro_subobj_sr *obj = pcep_obj_create_ro_subobj_sr_common( | |
759 | PCEP_SR_SUBOBJ_NAI_IPV6_ADJACENCY, loose_hop, false, sid_absent, | |
760 | c_flag, m_flag); | |
761 | ||
762 | if (!sid_absent) { | |
763 | obj->sid = sid; | |
764 | } | |
765 | obj->nai_list = dll_initialize(); | |
766 | struct in6_addr *local_ipv6_copy = | |
767 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(struct in6_addr)); | |
768 | struct in6_addr *remote_ipv6_copy = | |
769 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(struct in6_addr)); | |
770 | memcpy(local_ipv6_copy, local_ipv6, sizeof(struct in6_addr)); | |
771 | memcpy(remote_ipv6_copy, remote_ipv6, sizeof(struct in6_addr)); | |
772 | dll_append(obj->nai_list, local_ipv6_copy); | |
773 | dll_append(obj->nai_list, remote_ipv6_copy); | |
774 | ||
775 | return obj; | |
776 | } | |
777 | ||
778 | struct pcep_ro_subobj_sr *pcep_obj_create_ro_subobj_sr_unnumbered_ipv4_adj( | |
779 | bool loose_hop, bool sid_absent, bool c_flag, bool m_flag, uint32_t sid, | |
780 | uint32_t local_node_id, uint32_t local_if_id, uint32_t remote_node_id, | |
781 | uint32_t remote_if_id) | |
782 | { | |
783 | /* According to draft-ietf-pce-segment-routing-16#section-5.2.1 | |
784 | * If NT=5, the F bit MUST be zero. If the S bit is 1, the Length | |
785 | * MUST be 20, otherwise the Length MUST be 24. */ | |
786 | struct pcep_ro_subobj_sr *obj = pcep_obj_create_ro_subobj_sr_common( | |
787 | PCEP_SR_SUBOBJ_NAI_UNNUMBERED_IPV4_ADJACENCY, loose_hop, false, | |
788 | sid_absent, c_flag, m_flag); | |
789 | ||
790 | if (!sid_absent) { | |
791 | obj->sid = sid; | |
792 | } | |
793 | ||
794 | obj->nai_list = dll_initialize(); | |
795 | uint32_t *local_node_id_copy = | |
796 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(uint32_t)); | |
797 | *local_node_id_copy = local_node_id; | |
798 | dll_append(obj->nai_list, local_node_id_copy); | |
799 | ||
800 | uint32_t *local_if_id_copy = | |
801 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(uint32_t)); | |
802 | *local_if_id_copy = local_if_id; | |
803 | dll_append(obj->nai_list, local_if_id_copy); | |
804 | ||
805 | uint32_t *remote_node_id_copy = | |
806 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(uint32_t)); | |
807 | *remote_node_id_copy = remote_node_id; | |
808 | dll_append(obj->nai_list, remote_node_id_copy); | |
809 | ||
810 | uint32_t *remote_if_id_copy = | |
811 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(uint32_t)); | |
812 | *remote_if_id_copy = remote_if_id; | |
813 | dll_append(obj->nai_list, remote_if_id_copy); | |
814 | ||
815 | return obj; | |
816 | } | |
817 | ||
818 | struct pcep_ro_subobj_sr *pcep_obj_create_ro_subobj_sr_linklocal_ipv6_adj( | |
819 | bool loose_hop, bool sid_absent, bool c_flag, bool m_flag, uint32_t sid, | |
820 | struct in6_addr *local_ipv6, uint32_t local_if_id, | |
821 | struct in6_addr *remote_ipv6, uint32_t remote_if_id) | |
822 | { | |
823 | if (local_ipv6 == NULL || remote_ipv6 == NULL) { | |
824 | return NULL; | |
825 | } | |
826 | ||
827 | /* According to draft-ietf-pce-segment-routing-16#section-5.2.1 | |
828 | * If NT=6, the F bit MUST be zero. If the S bit is 1, the Length | |
829 | * MUST be 44, otherwise the Length MUST be 48 */ | |
830 | struct pcep_ro_subobj_sr *obj = pcep_obj_create_ro_subobj_sr_common( | |
831 | PCEP_SR_SUBOBJ_NAI_LINK_LOCAL_IPV6_ADJACENCY, loose_hop, false, | |
832 | sid_absent, c_flag, m_flag); | |
833 | ||
834 | if (!sid_absent) { | |
835 | obj->sid = sid; | |
836 | } | |
837 | obj->nai_list = dll_initialize(); | |
838 | struct in6_addr *local_ipv6_copy = | |
839 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(struct in6_addr)); | |
840 | memcpy(local_ipv6_copy, local_ipv6, sizeof(struct in6_addr)); | |
841 | dll_append(obj->nai_list, local_ipv6_copy); | |
842 | ||
843 | uint32_t *local_if_id_copy = | |
844 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(uint32_t)); | |
845 | *local_if_id_copy = local_if_id; | |
846 | dll_append(obj->nai_list, local_if_id_copy); | |
847 | ||
848 | struct in6_addr *remote_ipv6_copy = | |
849 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(struct in6_addr)); | |
850 | memcpy(remote_ipv6_copy, remote_ipv6, sizeof(struct in6_addr)); | |
851 | dll_append(obj->nai_list, remote_ipv6_copy); | |
852 | ||
853 | uint32_t *remote_if_id_copy = | |
854 | pceplib_malloc(PCEPLIB_MESSAGES, sizeof(uint32_t)); | |
855 | *remote_if_id_copy = remote_if_id; | |
856 | dll_append(obj->nai_list, remote_if_id_copy); | |
857 | ||
858 | return obj; | |
859 | } |