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