isisd/isis_northbound.c

   1 /*
   2  * Copyright (C) 2001,2002   Sampo Saaristo
   3  *                           Tampere University of Technology
   4  *                           Institute of Communications Engineering
   5  * Copyright (C) 2018        Volta Networks
   6  *                           Emanuele Di Pascale
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the Free
  10  * Software Foundation; either version 2 of the License, or (at your option)
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful, but WITHOUT
  14  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  16  * more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with this program; see the file COPYING; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 #include <zebra.h>
  24 #include "northbound.h"
  25 #include "libfrr.h"
  26 #include "linklist.h"
  27 #include "log.h"
  28 #include "isisd/dict.h"
  29 #include "isisd/isis_constants.h"
  30 #include "isisd/isis_common.h"
  31 #include "isisd/isis_flags.h"
  32 #include "isisd/isis_circuit.h"
  33 #include "isisd/isisd.h"
  34 #include "isisd/isis_lsp.h"
  35 #include "isisd/isis_pdu.h"
  36 #include "isisd/isis_dynhn.h"
  37 #include "isisd/isis_misc.h"
  38 #include "isisd/isis_csm.h"
  39 #include "isisd/isis_adjacency.h"
  40 #include "isisd/isis_spf.h"
  41 #include "isisd/isis_te.h"
  42 #include "isisd/isis_memory.h"
  43 #include "isisd/isis_mt.h"
  44 #include "isisd/isis_cli.h"
  45 #include "isisd/isis_redist.h"
  46 #include "lib/spf_backoff.h"
  47 #include "lib/lib_errors.h"
  48 #include "lib/vrf.h"
  49
  50 /*
  51  * XPath: /frr-isisd:isis/instance
  52  */
  53 static int isis_instance_create(enum nb_event event,
  54                                 const struct lyd_node *dnode,
  55                                 union nb_resource *resource)
  56 {
  57         struct isis_area *area;
  58         const char *area_tag;
  59
  60         if (event != NB_EV_APPLY)
  61                 return NB_OK;
  62
  63         area_tag = yang_dnode_get_string(dnode, "./area-tag");
  64         area = isis_area_lookup(area_tag);
  65         if (area)
  66                 return NB_ERR_INCONSISTENCY;
  67
  68         area = isis_area_create(area_tag);
  69         /* save area in dnode to avoid looking it up all the time */
  70         yang_dnode_set_entry(dnode, area);
  71
  72         return NB_OK;
  73 }
  74
  75 static int isis_instance_delete(enum nb_event event,
  76                                 const struct lyd_node *dnode)
  77 {
  78         const char *area_tag;
  79
  80         if (event != NB_EV_APPLY)
  81                 return NB_OK;
  82
  83         area_tag = yang_dnode_get_string(dnode, "./area-tag");
  84         isis_area_destroy(area_tag);
  85
  86         return NB_OK;
  87 }
  88
  89 /*
  90  * XPath: /frr-isisd:isis/instance/is-type
  91  */
  92 static int isis_instance_is_type_modify(enum nb_event event,
  93                                         const struct lyd_node *dnode,
  94                                         union nb_resource *resource)
  95 {
  96         struct isis_area *area;
  97         int type;
  98
  99         if (event != NB_EV_APPLY)
 100                 return NB_OK;
 101
 102         area = yang_dnode_get_entry(dnode, true);
 103         type = yang_dnode_get_enum(dnode, NULL);
 104         isis_area_is_type_set(area, type);
 105
 106         return NB_OK;
 107 }
 108
 109 /*
 110  * XPath: /frr-isisd:isis/instance/area-address
 111  */
 112 static int isis_instance_area_address_create(enum nb_event event,
 113                                              const struct lyd_node *dnode,
 114                                              union nb_resource *resource)
 115 {
 116         struct isis_area *area;
 117         struct area_addr addr, *addrr = NULL, *addrp = NULL;
 118         struct listnode *node;
 119         uint8_t buff[255];
 120         const char *net_title = yang_dnode_get_string(dnode, NULL);
 121
 122         switch (event) {
 123         case NB_EV_VALIDATE:
 124                 addr.addr_len = dotformat2buff(buff, net_title);
 125                 memcpy(addr.area_addr, buff, addr.addr_len);
 126                 if (addr.area_addr[addr.addr_len - 1] != 0) {
 127                         flog_warn(
 128                                 EC_LIB_NB_CB_CONFIG_VALIDATE,
 129                                 "nsel byte (last byte) in area address must be 0");
 130                         return NB_ERR_VALIDATION;
 131                 }
 132                 if (isis->sysid_set) {
 133                         /* Check that the SystemID portions match */
 134                         if (memcmp(isis->sysid, GETSYSID((&addr)),
 135                                    ISIS_SYS_ID_LEN)) {
 136                                 flog_warn(
 137                                         EC_LIB_NB_CB_CONFIG_VALIDATE,
 138                                         "System ID must not change when defining additional area addresses");
 139                                 return NB_ERR_VALIDATION;
 140                         }
 141                 }
 142                 break;
 143         case NB_EV_PREPARE:
 144                 addrr = XMALLOC(MTYPE_ISIS_AREA_ADDR, sizeof(struct area_addr));
 145                 addrr->addr_len = dotformat2buff(buff, net_title);
 146                 memcpy(addrr->area_addr, buff, addrr->addr_len);
 147                 resource->ptr = addrr;
 148                 break;
 149         case NB_EV_ABORT:
 150                 XFREE(MTYPE_ISIS_AREA_ADDR, resource->ptr);
 151                 break;
 152         case NB_EV_APPLY:
 153                 area = yang_dnode_get_entry(dnode, true);
 154                 addrr = resource->ptr;
 155
 156                 if (isis->sysid_set == 0) {
 157                         /*
 158                          * First area address - get the SystemID for this router
 159                          */
 160                         memcpy(isis->sysid, GETSYSID(addrr), ISIS_SYS_ID_LEN);
 161                         isis->sysid_set = 1;
 162                 } else {
 163                         /* check that we don't already have this address */
 164                         for (ALL_LIST_ELEMENTS_RO(area->area_addrs, node,
 165                                                   addrp)) {
 166                                 if ((addrp->addr_len + ISIS_SYS_ID_LEN
 167                                      + ISIS_NSEL_LEN)
 168                                     != (addrr->addr_len))
 169                                         continue;
 170                                 if (!memcmp(addrp->area_addr, addrr->area_addr,
 171                                             addrr->addr_len)) {
 172                                         XFREE(MTYPE_ISIS_AREA_ADDR, addrr);
 173                                         return NB_OK; /* silent fail */
 174                                 }
 175                         }
 176                 }
 177
 178                 /*Forget the systemID part of the address */
 179                 addrr->addr_len -= (ISIS_SYS_ID_LEN + ISIS_NSEL_LEN);
 180                 assert(area->area_addrs); /* to silence scan-build sillyness */
 181                 listnode_add(area->area_addrs, addrr);
 182
 183                 /* only now we can safely generate our LSPs for this area */
 184                 if (listcount(area->area_addrs) > 0) {
 185                         if (area->is_type & IS_LEVEL_1)
 186                                 lsp_generate(area, IS_LEVEL_1);
 187                         if (area->is_type & IS_LEVEL_2)
 188                                 lsp_generate(area, IS_LEVEL_2);
 189                 }
 190                 break;
 191         }
 192
 193         return NB_OK;
 194 }
 195
 196 static int isis_instance_area_address_delete(enum nb_event event,
 197                                              const struct lyd_node *dnode)
 198 {
 199         struct area_addr addr, *addrp = NULL;
 200         struct listnode *node;
 201         uint8_t buff[255];
 202         struct isis_area *area;
 203         const char *net_title;
 204
 205         if (event != NB_EV_APPLY)
 206                 return NB_OK;
 207
 208         net_title = yang_dnode_get_string(dnode, NULL);
 209         addr.addr_len = dotformat2buff(buff, net_title);
 210         memcpy(addr.area_addr, buff, (int)addr.addr_len);
 211         area = yang_dnode_get_entry(dnode, true);
 212         for (ALL_LIST_ELEMENTS_RO(area->area_addrs, node, addrp)) {
 213                 if ((addrp->addr_len + ISIS_SYS_ID_LEN + 1) == addr.addr_len
 214                     && !memcmp(addrp->area_addr, addr.area_addr, addr.addr_len))
 215                         break;
 216         }
 217         if (!addrp)
 218                 return NB_ERR_INCONSISTENCY;
 219
 220         listnode_delete(area->area_addrs, addrp);
 221         XFREE(MTYPE_ISIS_AREA_ADDR, addrp);
 222         /*
 223          * Last area address - reset the SystemID for this router
 224          */
 225         if (listcount(area->area_addrs) == 0) {
 226                 memset(isis->sysid, 0, ISIS_SYS_ID_LEN);
 227                 isis->sysid_set = 0;
 228                 if (isis->debugs & DEBUG_EVENTS)
 229                         zlog_debug("Router has no SystemID");
 230         }
 231
 232         return NB_OK;
 233 }
 234
 235 /*
 236  * XPath: /frr-isisd:isis/instance/dynamic-hostname
 237  */
 238 static int isis_instance_dynamic_hostname_modify(enum nb_event event,
 239                                                  const struct lyd_node *dnode,
 240                                                  union nb_resource *resource)
 241 {
 242         struct isis_area *area;
 243
 244         if (event != NB_EV_APPLY)
 245                 return NB_OK;
 246
 247         area = yang_dnode_get_entry(dnode, true);
 248         isis_area_dynhostname_set(area, yang_dnode_get_bool(dnode, NULL));
 249
 250         return NB_OK;
 251 }
 252
 253 /*
 254  * XPath: /frr-isisd:isis/instance/attached
 255  */
 256 static int isis_instance_attached_create(enum nb_event event,
 257                                          const struct lyd_node *dnode,
 258                                          union nb_resource *resource)
 259 {
 260         struct isis_area *area;
 261
 262         if (event != NB_EV_APPLY)
 263                 return NB_OK;
 264
 265         area = yang_dnode_get_entry(dnode, true);
 266         isis_area_attached_bit_set(area, true);
 267
 268         return NB_OK;
 269 }
 270
 271 static int isis_instance_attached_delete(enum nb_event event,
 272                                          const struct lyd_node *dnode)
 273 {
 274         struct isis_area *area;
 275
 276         if (event != NB_EV_APPLY)
 277                 return NB_OK;
 278
 279         area = yang_dnode_get_entry(dnode, true);
 280         isis_area_attached_bit_set(area, false);
 281
 282         return NB_OK;
 283 }
 284
 285 /*
 286  * XPath: /frr-isisd:isis/instance/overload
 287  */
 288 static int isis_instance_overload_create(enum nb_event event,
 289                                          const struct lyd_node *dnode,
 290                                          union nb_resource *resource)
 291 {
 292         struct isis_area *area;
 293
 294         if (event != NB_EV_APPLY)
 295                 return NB_OK;
 296
 297         area = yang_dnode_get_entry(dnode, true);
 298         isis_area_overload_bit_set(area, true);
 299
 300         return NB_OK;
 301 }
 302
 303 static int isis_instance_overload_delete(enum nb_event event,
 304                                          const struct lyd_node *dnode)
 305 {
 306         struct isis_area *area;
 307
 308         if (event != NB_EV_APPLY)
 309                 return NB_OK;
 310
 311         area = yang_dnode_get_entry(dnode, true);
 312         isis_area_overload_bit_set(area, false);
 313
 314         return NB_OK;
 315 }
 316
 317 /*
 318  * XPath: /frr-isisd:isis/instance/metric-style
 319  */
 320 static int isis_instance_metric_style_modify(enum nb_event event,
 321                                              const struct lyd_node *dnode,
 322                                              union nb_resource *resource)
 323 {
 324         /* TODO: implement me. */
 325         return NB_OK;
 326 }
 327
 328 /*
 329  * XPath: /frr-isisd:isis/instance/purge-originator
 330  */
 331 static int isis_instance_purge_originator_create(enum nb_event event,
 332                                                  const struct lyd_node *dnode,
 333                                                  union nb_resource *resource)
 334 {
 335         /* TODO: implement me. */
 336         return NB_OK;
 337 }
 338
 339 static int isis_instance_purge_originator_delete(enum nb_event event,
 340                                                  const struct lyd_node *dnode)
 341 {
 342         /* TODO: implement me. */
 343         return NB_OK;
 344 }
 345
 346 /*
 347  * XPath: /frr-isisd:isis/instance/lsp/mtu
 348  */
 349 static int isis_instance_lsp_mtu_modify(enum nb_event event,
 350                                         const struct lyd_node *dnode,
 351                                         union nb_resource *resource)
 352 {
 353         /* TODO: implement me. */
 354         return NB_OK;
 355 }
 356
 357 /*
 358  * XPath: /frr-isisd:isis/instance/lsp/refresh-interval/level-1
 359  */
 360 static int
 361 isis_instance_lsp_refresh_interval_level_1_modify(enum nb_event event,
 362                                                   const struct lyd_node *dnode,
 363                                                   union nb_resource *resource)
 364 {
 365         /* TODO: implement me. */
 366         return NB_OK;
 367 }
 368
 369 /*
 370  * XPath: /frr-isisd:isis/instance/lsp/refresh-interval/level-2
 371  */
 372 static int
 373 isis_instance_lsp_refresh_interval_level_2_modify(enum nb_event event,
 374                                                   const struct lyd_node *dnode,
 375                                                   union nb_resource *resource)
 376 {
 377         /* TODO: implement me. */
 378         return NB_OK;
 379 }
 380
 381 /*
 382  * XPath: /frr-isisd:isis/instance/lsp/maximum-lifetime/level-1
 383  */
 384 static int
 385 isis_instance_lsp_maximum_lifetime_level_1_modify(enum nb_event event,
 386                                                   const struct lyd_node *dnode,
 387                                                   union nb_resource *resource)
 388 {
 389         /* TODO: implement me. */
 390         return NB_OK;
 391 }
 392
 393 /*
 394  * XPath: /frr-isisd:isis/instance/lsp/maximum-lifetime/level-2
 395  */
 396 static int
 397 isis_instance_lsp_maximum_lifetime_level_2_modify(enum nb_event event,
 398                                                   const struct lyd_node *dnode,
 399                                                   union nb_resource *resource)
 400 {
 401         /* TODO: implement me. */
 402         return NB_OK;
 403 }
 404
 405 /*
 406  * XPath: /frr-isisd:isis/instance/lsp/generation-interval/level-1
 407  */
 408 static int isis_instance_lsp_generation_interval_level_1_modify(
 409         enum nb_event event, const struct lyd_node *dnode,
 410         union nb_resource *resource)
 411 {
 412         /* TODO: implement me. */
 413         return NB_OK;
 414 }
 415
 416 /*
 417  * XPath: /frr-isisd:isis/instance/lsp/generation-interval/level-2
 418  */
 419 static int isis_instance_lsp_generation_interval_level_2_modify(
 420         enum nb_event event, const struct lyd_node *dnode,
 421         union nb_resource *resource)
 422 {
 423         /* TODO: implement me. */
 424         return NB_OK;
 425 }
 426
 427 /*
 428  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay
 429  */
 430 static int
 431 isis_instance_spf_ietf_backoff_delay_create(enum nb_event event,
 432                                             const struct lyd_node *dnode,
 433                                             union nb_resource *resource)
 434 {
 435         /* TODO: implement me. */
 436         return NB_OK;
 437 }
 438
 439 static int
 440 isis_instance_spf_ietf_backoff_delay_delete(enum nb_event event,
 441                                             const struct lyd_node *dnode)
 442 {
 443         /* TODO: implement me. */
 444         return NB_OK;
 445 }
 446
 447 /*
 448  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/init-delay
 449  */
 450 static int isis_instance_spf_ietf_backoff_delay_init_delay_modify(
 451         enum nb_event event, const struct lyd_node *dnode,
 452         union nb_resource *resource)
 453 {
 454         /* TODO: implement me. */
 455         return NB_OK;
 456 }
 457
 458 /*
 459  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/short-delay
 460  */
 461 static int isis_instance_spf_ietf_backoff_delay_short_delay_modify(
 462         enum nb_event event, const struct lyd_node *dnode,
 463         union nb_resource *resource)
 464 {
 465         /* TODO: implement me. */
 466         return NB_OK;
 467 }
 468
 469 /*
 470  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/long-delay
 471  */
 472 static int isis_instance_spf_ietf_backoff_delay_long_delay_modify(
 473         enum nb_event event, const struct lyd_node *dnode,
 474         union nb_resource *resource)
 475 {
 476         /* TODO: implement me. */
 477         return NB_OK;
 478 }
 479
 480 /*
 481  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/hold-down
 482  */
 483 static int isis_instance_spf_ietf_backoff_delay_hold_down_modify(
 484         enum nb_event event, const struct lyd_node *dnode,
 485         union nb_resource *resource)
 486 {
 487         /* TODO: implement me. */
 488         return NB_OK;
 489 }
 490
 491 /*
 492  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/time-to-learn
 493  */
 494 static int isis_instance_spf_ietf_backoff_delay_time_to_learn_modify(
 495         enum nb_event event, const struct lyd_node *dnode,
 496         union nb_resource *resource)
 497 {
 498         /* TODO: implement me. */
 499         return NB_OK;
 500 }
 501
 502 /*
 503  * XPath: /frr-isisd:isis/instance/spf/minimum-interval/level-1
 504  */
 505 static int
 506 isis_instance_spf_minimum_interval_level_1_modify(enum nb_event event,
 507                                                   const struct lyd_node *dnode,
 508                                                   union nb_resource *resource)
 509 {
 510         /* TODO: implement me. */
 511         return NB_OK;
 512 }
 513
 514 /*
 515  * XPath: /frr-isisd:isis/instance/spf/minimum-interval/level-2
 516  */
 517 static int
 518 isis_instance_spf_minimum_interval_level_2_modify(enum nb_event event,
 519                                                   const struct lyd_node *dnode,
 520                                                   union nb_resource *resource)
 521 {
 522         /* TODO: implement me. */
 523         return NB_OK;
 524 }
 525
 526 /*
 527  * XPath: /frr-isisd:isis/instance/area-password
 528  */
 529 static int isis_instance_area_password_create(enum nb_event event,
 530                                               const struct lyd_node *dnode,
 531                                               union nb_resource *resource)
 532 {
 533         /* TODO: implement me. */
 534         return NB_OK;
 535 }
 536
 537 static int isis_instance_area_password_delete(enum nb_event event,
 538                                               const struct lyd_node *dnode)
 539 {
 540         /* TODO: implement me. */
 541         return NB_OK;
 542 }
 543
 544 /*
 545  * XPath: /frr-isisd:isis/instance/area-password/password
 546  */
 547 static int
 548 isis_instance_area_password_password_modify(enum nb_event event,
 549                                             const struct lyd_node *dnode,
 550                                             union nb_resource *resource)
 551 {
 552         /* TODO: implement me. */
 553         return NB_OK;
 554 }
 555
 556 /*
 557  * XPath: /frr-isisd:isis/instance/area-password/password-type
 558  */
 559 static int
 560 isis_instance_area_password_password_type_modify(enum nb_event event,
 561                                                  const struct lyd_node *dnode,
 562                                                  union nb_resource *resource)
 563 {
 564         /* TODO: implement me. */
 565         return NB_OK;
 566 }
 567
 568 /*
 569  * XPath: /frr-isisd:isis/instance/area-password/authenticate-snp
 570  */
 571 static int isis_instance_area_password_authenticate_snp_modify(
 572         enum nb_event event, const struct lyd_node *dnode,
 573         union nb_resource *resource)
 574 {
 575         /* TODO: implement me. */
 576         return NB_OK;
 577 }
 578
 579 /*
 580  * XPath: /frr-isisd:isis/instance/domain-password
 581  */
 582 static int isis_instance_domain_password_create(enum nb_event event,
 583                                                 const struct lyd_node *dnode,
 584                                                 union nb_resource *resource)
 585 {
 586         /* TODO: implement me. */
 587         return NB_OK;
 588 }
 589
 590 static int isis_instance_domain_password_delete(enum nb_event event,
 591                                                 const struct lyd_node *dnode)
 592 {
 593         /* TODO: implement me. */
 594         return NB_OK;
 595 }
 596
 597 /*
 598  * XPath: /frr-isisd:isis/instance/domain-password/password
 599  */
 600 static int
 601 isis_instance_domain_password_password_modify(enum nb_event event,
 602                                               const struct lyd_node *dnode,
 603                                               union nb_resource *resource)
 604 {
 605         /* TODO: implement me. */
 606         return NB_OK;
 607 }
 608
 609 /*
 610  * XPath: /frr-isisd:isis/instance/domain-password/password-type
 611  */
 612 static int
 613 isis_instance_domain_password_password_type_modify(enum nb_event event,
 614                                                    const struct lyd_node *dnode,
 615                                                    union nb_resource *resource)
 616 {
 617         /* TODO: implement me. */
 618         return NB_OK;
 619 }
 620
 621 /*
 622  * XPath: /frr-isisd:isis/instance/domain-password/authenticate-snp
 623  */
 624 static int isis_instance_domain_password_authenticate_snp_modify(
 625         enum nb_event event, const struct lyd_node *dnode,
 626         union nb_resource *resource)
 627 {
 628         /* TODO: implement me. */
 629         return NB_OK;
 630 }
 631
 632 /*
 633  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv4
 634  */
 635 static int isis_instance_default_information_originate_ipv4_create(
 636         enum nb_event event, const struct lyd_node *dnode,
 637         union nb_resource *resource)
 638 {
 639         /* TODO: implement me. */
 640         return NB_OK;
 641 }
 642
 643 static int isis_instance_default_information_originate_ipv4_delete(
 644         enum nb_event event, const struct lyd_node *dnode)
 645 {
 646         /* TODO: implement me. */
 647         return NB_OK;
 648 }
 649
 650 /*
 651  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv4/always
 652  */
 653 static int isis_instance_default_information_originate_ipv4_always_create(
 654         enum nb_event event, const struct lyd_node *dnode,
 655         union nb_resource *resource)
 656 {
 657         /* TODO: implement me. */
 658         return NB_OK;
 659 }
 660
 661 static int isis_instance_default_information_originate_ipv4_always_delete(
 662         enum nb_event event, const struct lyd_node *dnode)
 663 {
 664         /* TODO: implement me. */
 665         return NB_OK;
 666 }
 667
 668 /*
 669  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv4/route-map
 670  */
 671 static int isis_instance_default_information_originate_ipv4_route_map_modify(
 672         enum nb_event event, const struct lyd_node *dnode,
 673         union nb_resource *resource)
 674 {
 675         /* TODO: implement me. */
 676         return NB_OK;
 677 }
 678
 679 static int isis_instance_default_information_originate_ipv4_route_map_delete(
 680         enum nb_event event, const struct lyd_node *dnode)
 681 {
 682         /* TODO: implement me. */
 683         return NB_OK;
 684 }
 685
 686 /*
 687  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv4/metric
 688  */
 689 static int isis_instance_default_information_originate_ipv4_metric_modify(
 690         enum nb_event event, const struct lyd_node *dnode,
 691         union nb_resource *resource)
 692 {
 693         /* TODO: implement me. */
 694         return NB_OK;
 695 }
 696
 697 static int isis_instance_default_information_originate_ipv4_metric_delete(
 698         enum nb_event event, const struct lyd_node *dnode)
 699 {
 700         /* TODO: implement me. */
 701         return NB_OK;
 702 }
 703
 704 /*
 705  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv6
 706  */
 707 static int isis_instance_default_information_originate_ipv6_create(
 708         enum nb_event event, const struct lyd_node *dnode,
 709         union nb_resource *resource)
 710 {
 711         /* TODO: implement me. */
 712         return NB_OK;
 713 }
 714
 715 static int isis_instance_default_information_originate_ipv6_delete(
 716         enum nb_event event, const struct lyd_node *dnode)
 717 {
 718         /* TODO: implement me. */
 719         return NB_OK;
 720 }
 721
 722 /*
 723  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv6/always
 724  */
 725 static int isis_instance_default_information_originate_ipv6_always_create(
 726         enum nb_event event, const struct lyd_node *dnode,
 727         union nb_resource *resource)
 728 {
 729         /* TODO: implement me. */
 730         return NB_OK;
 731 }
 732
 733 static int isis_instance_default_information_originate_ipv6_always_delete(
 734         enum nb_event event, const struct lyd_node *dnode)
 735 {
 736         /* TODO: implement me. */
 737         return NB_OK;
 738 }
 739
 740 /*
 741  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv6/route-map
 742  */
 743 static int isis_instance_default_information_originate_ipv6_route_map_modify(
 744         enum nb_event event, const struct lyd_node *dnode,
 745         union nb_resource *resource)
 746 {
 747         /* TODO: implement me. */
 748         return NB_OK;
 749 }
 750
 751 static int isis_instance_default_information_originate_ipv6_route_map_delete(
 752         enum nb_event event, const struct lyd_node *dnode)
 753 {
 754         /* TODO: implement me. */
 755         return NB_OK;
 756 }
 757
 758 /*
 759  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv6/metric
 760  */
 761 static int isis_instance_default_information_originate_ipv6_metric_modify(
 762         enum nb_event event, const struct lyd_node *dnode,
 763         union nb_resource *resource)
 764 {
 765         /* TODO: implement me. */
 766         return NB_OK;
 767 }
 768
 769 static int isis_instance_default_information_originate_ipv6_metric_delete(
 770         enum nb_event event, const struct lyd_node *dnode)
 771 {
 772         /* TODO: implement me. */
 773         return NB_OK;
 774 }
 775
 776 /*
 777  * XPath: /frr-isisd:isis/instance/redistribute/ipv4
 778  */
 779 static int isis_instance_redistribute_ipv4_create(enum nb_event event,
 780                                                   const struct lyd_node *dnode,
 781                                                   union nb_resource *resource)
 782 {
 783         /* TODO: implement me. */
 784         return NB_OK;
 785 }
 786
 787 static int isis_instance_redistribute_ipv4_delete(enum nb_event event,
 788                                                   const struct lyd_node *dnode)
 789 {
 790         /* TODO: implement me. */
 791         return NB_OK;
 792 }
 793
 794 /*
 795  * XPath: /frr-isisd:isis/instance/redistribute/ipv4/route-map
 796  */
 797 static int
 798 isis_instance_redistribute_ipv4_route_map_modify(enum nb_event event,
 799                                                  const struct lyd_node *dnode,
 800                                                  union nb_resource *resource)
 801 {
 802         /* TODO: implement me. */
 803         return NB_OK;
 804 }
 805
 806 static int
 807 isis_instance_redistribute_ipv4_route_map_delete(enum nb_event event,
 808                                                  const struct lyd_node *dnode)
 809 {
 810         /* TODO: implement me. */
 811         return NB_OK;
 812 }
 813
 814 /*
 815  * XPath: /frr-isisd:isis/instance/redistribute/ipv4/metric
 816  */
 817 static int
 818 isis_instance_redistribute_ipv4_metric_modify(enum nb_event event,
 819                                               const struct lyd_node *dnode,
 820                                               union nb_resource *resource)
 821 {
 822         /* TODO: implement me. */
 823         return NB_OK;
 824 }
 825
 826 static int
 827 isis_instance_redistribute_ipv4_metric_delete(enum nb_event event,
 828                                               const struct lyd_node *dnode)
 829 {
 830         /* TODO: implement me. */
 831         return NB_OK;
 832 }
 833
 834 /*
 835  * XPath: /frr-isisd:isis/instance/redistribute/ipv6
 836  */
 837 static int isis_instance_redistribute_ipv6_create(enum nb_event event,
 838                                                   const struct lyd_node *dnode,
 839                                                   union nb_resource *resource)
 840 {
 841         /* TODO: implement me. */
 842         return NB_OK;
 843 }
 844
 845 static int isis_instance_redistribute_ipv6_delete(enum nb_event event,
 846                                                   const struct lyd_node *dnode)
 847 {
 848         /* TODO: implement me. */
 849         return NB_OK;
 850 }
 851
 852 /*
 853  * XPath: /frr-isisd:isis/instance/redistribute/ipv6/route-map
 854  */
 855 static int
 856 isis_instance_redistribute_ipv6_route_map_modify(enum nb_event event,
 857                                                  const struct lyd_node *dnode,
 858                                                  union nb_resource *resource)
 859 {
 860         /* TODO: implement me. */
 861         return NB_OK;
 862 }
 863
 864 static int
 865 isis_instance_redistribute_ipv6_route_map_delete(enum nb_event event,
 866                                                  const struct lyd_node *dnode)
 867 {
 868         /* TODO: implement me. */
 869         return NB_OK;
 870 }
 871
 872 /*
 873  * XPath: /frr-isisd:isis/instance/redistribute/ipv6/metric
 874  */
 875 static int
 876 isis_instance_redistribute_ipv6_metric_modify(enum nb_event event,
 877                                               const struct lyd_node *dnode,
 878                                               union nb_resource *resource)
 879 {
 880         /* TODO: implement me. */
 881         return NB_OK;
 882 }
 883
 884 static int
 885 isis_instance_redistribute_ipv6_metric_delete(enum nb_event event,
 886                                               const struct lyd_node *dnode)
 887 {
 888         /* TODO: implement me. */
 889         return NB_OK;
 890 }
 891
 892 /*
 893  * XPath: /frr-isisd:isis/instance/multi-topology/ipv4-multicast
 894  */
 895 static int
 896 isis_instance_multi_topology_ipv4_multicast_create(enum nb_event event,
 897                                                    const struct lyd_node *dnode,
 898                                                    union nb_resource *resource)
 899 {
 900         /* TODO: implement me. */
 901         return NB_OK;
 902 }
 903
 904 static int
 905 isis_instance_multi_topology_ipv4_multicast_delete(enum nb_event event,
 906                                                    const struct lyd_node *dnode)
 907 {
 908         /* TODO: implement me. */
 909         return NB_OK;
 910 }
 911
 912 /*
 913  * XPath: /frr-isisd:isis/instance/multi-topology/ipv4-multicast/overload
 914  */
 915 static int isis_instance_multi_topology_ipv4_multicast_overload_create(
 916         enum nb_event event, const struct lyd_node *dnode,
 917         union nb_resource *resource)
 918 {
 919         /* TODO: implement me. */
 920         return NB_OK;
 921 }
 922
 923 static int isis_instance_multi_topology_ipv4_multicast_overload_delete(
 924         enum nb_event event, const struct lyd_node *dnode)
 925 {
 926         /* TODO: implement me. */
 927         return NB_OK;
 928 }
 929
 930 /*
 931  * XPath: /frr-isisd:isis/instance/multi-topology/ipv4-management
 932  */
 933 static int isis_instance_multi_topology_ipv4_management_create(
 934         enum nb_event event, const struct lyd_node *dnode,
 935         union nb_resource *resource)
 936 {
 937         /* TODO: implement me. */
 938         return NB_OK;
 939 }
 940
 941 static int isis_instance_multi_topology_ipv4_management_delete(
 942         enum nb_event event, const struct lyd_node *dnode)
 943 {
 944         /* TODO: implement me. */
 945         return NB_OK;
 946 }
 947
 948 /*
 949  * XPath: /frr-isisd:isis/instance/multi-topology/ipv4-management/overload
 950  */
 951 static int isis_instance_multi_topology_ipv4_management_overload_create(
 952         enum nb_event event, const struct lyd_node *dnode,
 953         union nb_resource *resource)
 954 {
 955         /* TODO: implement me. */
 956         return NB_OK;
 957 }
 958
 959 static int isis_instance_multi_topology_ipv4_management_overload_delete(
 960         enum nb_event event, const struct lyd_node *dnode)
 961 {
 962         /* TODO: implement me. */
 963         return NB_OK;
 964 }
 965
 966 /*
 967  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-unicast
 968  */
 969 static int
 970 isis_instance_multi_topology_ipv6_unicast_create(enum nb_event event,
 971                                                  const struct lyd_node *dnode,
 972                                                  union nb_resource *resource)
 973 {
 974         /* TODO: implement me. */
 975         return NB_OK;
 976 }
 977
 978 static int
 979 isis_instance_multi_topology_ipv6_unicast_delete(enum nb_event event,
 980                                                  const struct lyd_node *dnode)
 981 {
 982         /* TODO: implement me. */
 983         return NB_OK;
 984 }
 985
 986 /*
 987  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-unicast/overload
 988  */
 989 static int isis_instance_multi_topology_ipv6_unicast_overload_create(
 990         enum nb_event event, const struct lyd_node *dnode,
 991         union nb_resource *resource)
 992 {
 993         /* TODO: implement me. */
 994         return NB_OK;
 995 }
 996
 997 static int isis_instance_multi_topology_ipv6_unicast_overload_delete(
 998         enum nb_event event, const struct lyd_node *dnode)
 999 {
1000         /* TODO: implement me. */
1001         return NB_OK;
1002 }
1003
1004 /*
1005  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-multicast
1006  */
1007 static int
1008 isis_instance_multi_topology_ipv6_multicast_create(enum nb_event event,
1009                                                    const struct lyd_node *dnode,
1010                                                    union nb_resource *resource)
1011 {
1012         /* TODO: implement me. */
1013         return NB_OK;
1014 }
1015
1016 static int
1017 isis_instance_multi_topology_ipv6_multicast_delete(enum nb_event event,
1018                                                    const struct lyd_node *dnode)
1019 {
1020         /* TODO: implement me. */
1021         return NB_OK;
1022 }
1023
1024 /*
1025  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-multicast/overload
1026  */
1027 static int isis_instance_multi_topology_ipv6_multicast_overload_create(
1028         enum nb_event event, const struct lyd_node *dnode,
1029         union nb_resource *resource)
1030 {
1031         /* TODO: implement me. */
1032         return NB_OK;
1033 }
1034
1035 static int isis_instance_multi_topology_ipv6_multicast_overload_delete(
1036         enum nb_event event, const struct lyd_node *dnode)
1037 {
1038         /* TODO: implement me. */
1039         return NB_OK;
1040 }
1041
1042 /*
1043  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-management
1044  */
1045 static int isis_instance_multi_topology_ipv6_management_create(
1046         enum nb_event event, const struct lyd_node *dnode,
1047         union nb_resource *resource)
1048 {
1049         /* TODO: implement me. */
1050         return NB_OK;
1051 }
1052
1053 static int isis_instance_multi_topology_ipv6_management_delete(
1054         enum nb_event event, const struct lyd_node *dnode)
1055 {
1056         /* TODO: implement me. */
1057         return NB_OK;
1058 }
1059
1060 /*
1061  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-management/overload
1062  */
1063 static int isis_instance_multi_topology_ipv6_management_overload_create(
1064         enum nb_event event, const struct lyd_node *dnode,
1065         union nb_resource *resource)
1066 {
1067         /* TODO: implement me. */
1068         return NB_OK;
1069 }
1070
1071 static int isis_instance_multi_topology_ipv6_management_overload_delete(
1072         enum nb_event event, const struct lyd_node *dnode)
1073 {
1074         /* TODO: implement me. */
1075         return NB_OK;
1076 }
1077
1078 /*
1079  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-dstsrc
1080  */
1081 static int
1082 isis_instance_multi_topology_ipv6_dstsrc_create(enum nb_event event,
1083                                                 const struct lyd_node *dnode,
1084                                                 union nb_resource *resource)
1085 {
1086         /* TODO: implement me. */
1087         return NB_OK;
1088 }
1089
1090 static int
1091 isis_instance_multi_topology_ipv6_dstsrc_delete(enum nb_event event,
1092                                                 const struct lyd_node *dnode)
1093 {
1094         /* TODO: implement me. */
1095         return NB_OK;
1096 }
1097
1098 /*
1099  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-dstsrc/overload
1100  */
1101 static int isis_instance_multi_topology_ipv6_dstsrc_overload_create(
1102         enum nb_event event, const struct lyd_node *dnode,
1103         union nb_resource *resource)
1104 {
1105         /* TODO: implement me. */
1106         return NB_OK;
1107 }
1108
1109 static int isis_instance_multi_topology_ipv6_dstsrc_overload_delete(
1110         enum nb_event event, const struct lyd_node *dnode)
1111 {
1112         /* TODO: implement me. */
1113         return NB_OK;
1114 }
1115
1116 /*
1117  * XPath: /frr-isisd:isis/instance/log-adjacency-changes
1118  */
1119 static int
1120 isis_instance_log_adjacency_changes_create(enum nb_event event,
1121                                            const struct lyd_node *dnode,
1122                                            union nb_resource *resource)
1123 {
1124         /* TODO: implement me. */
1125         return NB_OK;
1126 }
1127
1128 static int
1129 isis_instance_log_adjacency_changes_delete(enum nb_event event,
1130                                            const struct lyd_node *dnode)
1131 {
1132         /* TODO: implement me. */
1133         return NB_OK;
1134 }
1135
1136 /*
1137  * XPath: /frr-isisd:isis/mpls-te
1138  */
1139 static int isis_mpls_te_create(enum nb_event event,
1140                                const struct lyd_node *dnode,
1141                                union nb_resource *resource)
1142 {
1143         /* TODO: implement me. */
1144         return NB_OK;
1145 }
1146
1147 static int isis_mpls_te_delete(enum nb_event event,
1148                                const struct lyd_node *dnode)
1149 {
1150         /* TODO: implement me. */
1151         return NB_OK;
1152 }
1153
1154 /*
1155  * XPath: /frr-isisd:isis/mpls-te/router-address
1156  */
1157 static int isis_mpls_te_router_address_modify(enum nb_event event,
1158                                               const struct lyd_node *dnode,
1159                                               union nb_resource *resource)
1160 {
1161         /* TODO: implement me. */
1162         return NB_OK;
1163 }
1164
1165 static int isis_mpls_te_router_address_delete(enum nb_event event,
1166                                               const struct lyd_node *dnode)
1167 {
1168         /* TODO: implement me. */
1169         return NB_OK;
1170 }
1171
1172 /*
1173  * XPath: /frr-interface:lib/interface/frr-isisd:isis
1174  */
1175 static int lib_interface_isis_create(enum nb_event event,
1176                                      const struct lyd_node *dnode,
1177                                      union nb_resource *resource)
1178 {
1179         struct isis_area *area;
1180         struct interface *ifp;
1181         struct isis_circuit *circuit;
1182         const char *area_tag = yang_dnode_get_string(dnode, "./area-tag");
1183
1184         if (event != NB_EV_APPLY)
1185                 return NB_OK;
1186
1187         area = isis_area_lookup(area_tag);
1188         /* The area should have already be created. We are
1189          * setting the priority of the global isis area creation
1190          * slightly lower, so it should be executed first, but I
1191          * cannot rely on that so here I have to check.
1192          */
1193         if (!area) {
1194                 flog_err(
1195                         EC_LIB_NB_CB_CONFIG_APPLY,
1196                         "%s: attempt to create circuit for area %s before the area has been created",
1197                         __func__, area_tag);
1198                 abort();
1199         }
1200
1201         ifp = yang_dnode_get_entry(dnode, true);
1202         circuit = isis_circuit_create(area, ifp);
1203         assert(circuit->state == C_STATE_CONF || circuit->state == C_STATE_UP);
1204         yang_dnode_set_entry(dnode, circuit);
1205
1206         return NB_OK;
1207 }
1208
1209 static int lib_interface_isis_delete(enum nb_event event,
1210                                      const struct lyd_node *dnode)
1211 {
1212         struct isis_circuit *circuit;
1213
1214         if (event != NB_EV_APPLY)
1215                 return NB_OK;
1216
1217         circuit = yang_dnode_get_entry(dnode, true);
1218         if (!circuit)
1219                 return NB_ERR_INCONSISTENCY;
1220         /* delete circuit through csm changes */
1221         switch (circuit->state) {
1222         case C_STATE_UP:
1223                 isis_csm_state_change(IF_DOWN_FROM_Z, circuit,
1224                                       circuit->interface);
1225                 isis_csm_state_change(ISIS_DISABLE, circuit, circuit->area);
1226                 break;
1227         case C_STATE_CONF:
1228                 isis_csm_state_change(ISIS_DISABLE, circuit, circuit->area);
1229                 break;
1230         case C_STATE_INIT:
1231                 isis_csm_state_change(IF_DOWN_FROM_Z, circuit,
1232                                       circuit->interface);
1233                 break;
1234         }
1235
1236         return NB_OK;
1237 }
1238
1239 /*
1240  * XPath: /frr-interface:lib/interface/frr-isisd:isis/area-tag
1241  */
1242 static int lib_interface_isis_area_tag_modify(enum nb_event event,
1243                                               const struct lyd_node *dnode,
1244                                               union nb_resource *resource)
1245 {
1246         struct isis_circuit *circuit;
1247         struct interface *ifp;
1248         struct vrf *vrf;
1249         const char *area_tag, *ifname, *vrfname;
1250
1251         if (event == NB_EV_VALIDATE) {
1252                 /* libyang doesn't like relative paths across module boundaries
1253                  */
1254                 ifname = yang_dnode_get_string(dnode->parent->parent, "./name");
1255                 vrfname = yang_dnode_get_string(dnode->parent->parent, "./vrf");
1256                 vrf = vrf_lookup_by_name(vrfname);
1257                 assert(vrf);
1258                 ifp = if_lookup_by_name(ifname, vrf->vrf_id);
1259                 if (!ifp)
1260                         return NB_OK;
1261                 circuit = circuit_lookup_by_ifp(ifp, isis->init_circ_list);
1262                 area_tag = yang_dnode_get_string(dnode, NULL);
1263                 if (circuit && circuit->area && circuit->area->area_tag
1264                     && strcmp(circuit->area->area_tag, area_tag)) {
1265                         flog_warn(EC_LIB_NB_CB_CONFIG_VALIDATE,
1266                                   "ISIS circuit is already defined on %s",
1267                                   circuit->area->area_tag);
1268                         return NB_ERR_VALIDATION;
1269                 }
1270         }
1271
1272         return NB_OK;
1273 }
1274
1275 /*
1276  * XPath: /frr-interface:lib/interface/frr-isisd:isis/circuit-type
1277  */
1278 static int lib_interface_isis_circuit_type_modify(enum nb_event event,
1279                                                   const struct lyd_node *dnode,
1280                                                   union nb_resource *resource)
1281 {
1282         int circ_type = yang_dnode_get_enum(dnode, NULL);
1283         struct isis_circuit *circuit;
1284         struct interface *ifp;
1285         struct vrf *vrf;
1286         const char *ifname, *vrfname;
1287
1288         switch (event) {
1289         case NB_EV_VALIDATE:
1290                 /* libyang doesn't like relative paths across module boundaries
1291                  */
1292                 ifname = yang_dnode_get_string(dnode->parent->parent, "./name");
1293                 vrfname = yang_dnode_get_string(dnode->parent->parent, "./vrf");
1294                 vrf = vrf_lookup_by_name(vrfname);
1295                 assert(vrf);
1296                 ifp = if_lookup_by_name(ifname, vrf->vrf_id);
1297                 if (!ifp)
1298                         break;
1299                 circuit = circuit_lookup_by_ifp(ifp, isis->init_circ_list);
1300                 if (circuit && circuit->state == C_STATE_UP
1301                     && circuit->area->is_type != IS_LEVEL_1_AND_2
1302                     && circuit->area->is_type != circ_type) {
1303                         flog_warn(EC_LIB_NB_CB_CONFIG_VALIDATE,
1304                                   "Invalid circuit level for area %s",
1305                                   circuit->area->area_tag);
1306                         return NB_ERR_VALIDATION;
1307                 }
1308                 break;
1309         case NB_EV_PREPARE:
1310         case NB_EV_ABORT:
1311                 break;
1312         case NB_EV_APPLY:
1313                 circuit = yang_dnode_get_entry(dnode, true);
1314                 isis_circuit_is_type_set(circuit, circ_type);
1315                 break;
1316         }
1317
1318         return NB_OK;
1319 }
1320
1321 /*
1322  * XPath: /frr-interface:lib/interface/frr-isisd:isis/ipv4-routing
1323  */
1324 static int lib_interface_isis_ipv4_routing_create(enum nb_event event,
1325                                                   const struct lyd_node *dnode,
1326                                                   union nb_resource *resource)
1327 {
1328         bool ipv6;
1329         struct isis_circuit *circuit;
1330
1331         if (event != NB_EV_APPLY)
1332                 return NB_OK;
1333
1334         circuit = yang_dnode_get_entry(dnode, true);
1335         ipv6 = yang_dnode_exists(dnode, "../ipv6-routing");
1336         isis_circuit_af_set(circuit, true, ipv6);
1337
1338         return NB_OK;
1339 }
1340
1341 static int lib_interface_isis_ipv4_routing_delete(enum nb_event event,
1342                                                   const struct lyd_node *dnode)
1343 {
1344         bool ipv6;
1345         struct isis_circuit *circuit;
1346
1347         if (event != NB_EV_APPLY)
1348                 return NB_OK;
1349
1350         circuit = yang_dnode_get_entry(dnode, true);
1351         if (circuit && circuit->area) {
1352                 ipv6 = yang_dnode_exists(dnode, "../ipv6-routing");
1353                 isis_circuit_af_set(circuit, false, ipv6);
1354         }
1355
1356         return NB_OK;
1357 }
1358
1359 /*
1360  * XPath: /frr-interface:lib/interface/frr-isisd:isis/ipv6-routing
1361  */
1362 static int lib_interface_isis_ipv6_routing_create(enum nb_event event,
1363                                                   const struct lyd_node *dnode,
1364                                                   union nb_resource *resource)
1365 {
1366         bool ipv4;
1367         struct isis_circuit *circuit;
1368
1369         if (event != NB_EV_APPLY)
1370                 return NB_OK;
1371
1372         circuit = yang_dnode_get_entry(dnode, true);
1373         ipv4 = yang_dnode_exists(dnode, "../ipv6-routing");
1374         isis_circuit_af_set(circuit, ipv4, true);
1375
1376         return NB_OK;
1377 }
1378
1379 static int lib_interface_isis_ipv6_routing_delete(enum nb_event event,
1380                                                   const struct lyd_node *dnode)
1381 {
1382         bool ipv4;
1383         struct isis_circuit *circuit;
1384
1385         if (event != NB_EV_APPLY)
1386                 return NB_OK;
1387
1388         circuit = yang_dnode_get_entry(dnode, true);
1389         if (circuit->area) {
1390                 ipv4 = yang_dnode_exists(dnode, "../ipv4-routing");
1391                 isis_circuit_af_set(circuit, ipv4, false);
1392         }
1393
1394         return NB_OK;
1395 }
1396
1397 /*
1398  * XPath: /frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-1
1399  */
1400 static int
1401 lib_interface_isis_csnp_interval_level_1_modify(enum nb_event event,
1402                                                 const struct lyd_node *dnode,
1403                                                 union nb_resource *resource)
1404 {
1405         /* TODO: implement me. */
1406         return NB_OK;
1407 }
1408
1409 /*
1410  * XPath: /frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-2
1411  */
1412 static int
1413 lib_interface_isis_csnp_interval_level_2_modify(enum nb_event event,
1414                                                 const struct lyd_node *dnode,
1415                                                 union nb_resource *resource)
1416 {
1417         /* TODO: implement me. */
1418         return NB_OK;
1419 }
1420
1421 /*
1422  * XPath: /frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-1
1423  */
1424 static int
1425 lib_interface_isis_psnp_interval_level_1_modify(enum nb_event event,
1426                                                 const struct lyd_node *dnode,
1427                                                 union nb_resource *resource)
1428 {
1429         /* TODO: implement me. */
1430         return NB_OK;
1431 }
1432
1433 /*
1434  * XPath: /frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-2
1435  */
1436 static int
1437 lib_interface_isis_psnp_interval_level_2_modify(enum nb_event event,
1438                                                 const struct lyd_node *dnode,
1439                                                 union nb_resource *resource)
1440 {
1441         /* TODO: implement me. */
1442         return NB_OK;
1443 }
1444
1445 /*
1446  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/padding
1447  */
1448 static int lib_interface_isis_hello_padding_modify(enum nb_event event,
1449                                                    const struct lyd_node *dnode,
1450                                                    union nb_resource *resource)
1451 {
1452         /* TODO: implement me. */
1453         return NB_OK;
1454 }
1455
1456 /*
1457  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-1
1458  */
1459 static int
1460 lib_interface_isis_hello_interval_level_1_modify(enum nb_event event,
1461                                                  const struct lyd_node *dnode,
1462                                                  union nb_resource *resource)
1463 {
1464         /* TODO: implement me. */
1465         return NB_OK;
1466 }
1467
1468 /*
1469  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-2
1470  */
1471 static int
1472 lib_interface_isis_hello_interval_level_2_modify(enum nb_event event,
1473                                                  const struct lyd_node *dnode,
1474                                                  union nb_resource *resource)
1475 {
1476         /* TODO: implement me. */
1477         return NB_OK;
1478 }
1479
1480 /*
1481  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-1
1482  */
1483 static int
1484 lib_interface_isis_hello_multiplier_level_1_modify(enum nb_event event,
1485                                                    const struct lyd_node *dnode,
1486                                                    union nb_resource *resource)
1487 {
1488         /* TODO: implement me. */
1489         return NB_OK;
1490 }
1491
1492 /*
1493  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-2
1494  */
1495 static int
1496 lib_interface_isis_hello_multiplier_level_2_modify(enum nb_event event,
1497                                                    const struct lyd_node *dnode,
1498                                                    union nb_resource *resource)
1499 {
1500         /* TODO: implement me. */
1501         return NB_OK;
1502 }
1503
1504 /*
1505  * XPath: /frr-interface:lib/interface/frr-isisd:isis/metric/level-1
1506  */
1507 static int
1508 lib_interface_isis_metric_level_1_modify(enum nb_event event,
1509                                          const struct lyd_node *dnode,
1510                                          union nb_resource *resource)
1511 {
1512         /* TODO: implement me. */
1513         return NB_OK;
1514 }
1515
1516 /*
1517  * XPath: /frr-interface:lib/interface/frr-isisd:isis/metric/level-2
1518  */
1519 static int
1520 lib_interface_isis_metric_level_2_modify(enum nb_event event,
1521                                          const struct lyd_node *dnode,
1522                                          union nb_resource *resource)
1523 {
1524         /* TODO: implement me. */
1525         return NB_OK;
1526 }
1527
1528 /*
1529  * XPath: /frr-interface:lib/interface/frr-isisd:isis/priority/level-1
1530  */
1531 static int
1532 lib_interface_isis_priority_level_1_modify(enum nb_event event,
1533                                            const struct lyd_node *dnode,
1534                                            union nb_resource *resource)
1535 {
1536         /* TODO: implement me. */
1537         return NB_OK;
1538 }
1539
1540 /*
1541  * XPath: /frr-interface:lib/interface/frr-isisd:isis/priority/level-2
1542  */
1543 static int
1544 lib_interface_isis_priority_level_2_modify(enum nb_event event,
1545                                            const struct lyd_node *dnode,
1546                                            union nb_resource *resource)
1547 {
1548         /* TODO: implement me. */
1549         return NB_OK;
1550 }
1551
1552 /*
1553  * XPath: /frr-interface:lib/interface/frr-isisd:isis/network-type
1554  */
1555 static int lib_interface_isis_network_type_modify(enum nb_event event,
1556                                                   const struct lyd_node *dnode,
1557                                                   union nb_resource *resource)
1558 {
1559         /* TODO: implement me. */
1560         return NB_OK;
1561 }
1562
1563 static int lib_interface_isis_network_type_delete(enum nb_event event,
1564                                                   const struct lyd_node *dnode)
1565 {
1566         /* TODO: implement me. */
1567         return NB_OK;
1568 }
1569
1570 /*
1571  * XPath: /frr-interface:lib/interface/frr-isisd:isis/passive
1572  */
1573 static int lib_interface_isis_passive_create(enum nb_event event,
1574                                              const struct lyd_node *dnode,
1575                                              union nb_resource *resource)
1576 {
1577         /* TODO: implement me. */
1578         return NB_OK;
1579 }
1580
1581 static int lib_interface_isis_passive_delete(enum nb_event event,
1582                                              const struct lyd_node *dnode)
1583 {
1584         /* TODO: implement me. */
1585         return NB_OK;
1586 }
1587
1588 /*
1589  * XPath: /frr-interface:lib/interface/frr-isisd:isis/password
1590  */
1591 static int lib_interface_isis_password_create(enum nb_event event,
1592                                               const struct lyd_node *dnode,
1593                                               union nb_resource *resource)
1594 {
1595         /* TODO: implement me. */
1596         return NB_OK;
1597 }
1598
1599 static int lib_interface_isis_password_delete(enum nb_event event,
1600                                               const struct lyd_node *dnode)
1601 {
1602         /* TODO: implement me. */
1603         return NB_OK;
1604 }
1605
1606 /*
1607  * XPath: /frr-interface:lib/interface/frr-isisd:isis/password/password
1608  */
1609 static int
1610 lib_interface_isis_password_password_modify(enum nb_event event,
1611                                             const struct lyd_node *dnode,
1612                                             union nb_resource *resource)
1613 {
1614         /* TODO: implement me. */
1615         return NB_OK;
1616 }
1617
1618 /*
1619  * XPath: /frr-interface:lib/interface/frr-isisd:isis/password/password-type
1620  */
1621 static int
1622 lib_interface_isis_password_password_type_modify(enum nb_event event,
1623                                                  const struct lyd_node *dnode,
1624                                                  union nb_resource *resource)
1625 {
1626         /* TODO: implement me. */
1627         return NB_OK;
1628 }
1629
1630 /*
1631  * XPath:
1632  * /frr-interface:lib/interface/frr-isisd:isis/disable-three-way-handshake
1633  */
1634 static int lib_interface_isis_disable_three_way_handshake_create(
1635         enum nb_event event, const struct lyd_node *dnode,
1636         union nb_resource *resource)
1637 {
1638         /* TODO: implement me. */
1639         return NB_OK;
1640 }
1641
1642 static int lib_interface_isis_disable_three_way_handshake_delete(
1643         enum nb_event event, const struct lyd_node *dnode)
1644 {
1645         /* TODO: implement me. */
1646         return NB_OK;
1647 }
1648
1649 /*
1650  * XPath:
1651  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-unicast
1652  */
1653 static int lib_interface_isis_multi_topology_ipv4_unicast_modify(
1654         enum nb_event event, const struct lyd_node *dnode,
1655         union nb_resource *resource)
1656 {
1657         /* TODO: implement me. */
1658         return NB_OK;
1659 }
1660
1661 /*
1662  * XPath:
1663  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-multicast
1664  */
1665 static int lib_interface_isis_multi_topology_ipv4_multicast_modify(
1666         enum nb_event event, const struct lyd_node *dnode,
1667         union nb_resource *resource)
1668 {
1669         /* TODO: implement me. */
1670         return NB_OK;
1671 }
1672
1673 /*
1674  * XPath:
1675  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-management
1676  */
1677 static int lib_interface_isis_multi_topology_ipv4_management_modify(
1678         enum nb_event event, const struct lyd_node *dnode,
1679         union nb_resource *resource)
1680 {
1681         /* TODO: implement me. */
1682         return NB_OK;
1683 }
1684
1685 /*
1686  * XPath:
1687  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-unicast
1688  */
1689 static int lib_interface_isis_multi_topology_ipv6_unicast_modify(
1690         enum nb_event event, const struct lyd_node *dnode,
1691         union nb_resource *resource)
1692 {
1693         /* TODO: implement me. */
1694         return NB_OK;
1695 }
1696
1697 /*
1698  * XPath:
1699  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-multicast
1700  */
1701 static int lib_interface_isis_multi_topology_ipv6_multicast_modify(
1702         enum nb_event event, const struct lyd_node *dnode,
1703         union nb_resource *resource)
1704 {
1705         /* TODO: implement me. */
1706         return NB_OK;
1707 }
1708
1709 /*
1710  * XPath:
1711  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-management
1712  */
1713 static int lib_interface_isis_multi_topology_ipv6_management_modify(
1714         enum nb_event event, const struct lyd_node *dnode,
1715         union nb_resource *resource)
1716 {
1717         /* TODO: implement me. */
1718         return NB_OK;
1719 }
1720
1721 /*
1722  * XPath: /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-dstsrc
1723  */
1724 static int lib_interface_isis_multi_topology_ipv6_dstsrc_modify(
1725         enum nb_event event, const struct lyd_node *dnode,
1726         union nb_resource *resource)
1727 {
1728         /* TODO: implement me. */
1729         return NB_OK;
1730 }
1731
1732 /* clang-format off */
1733 const struct frr_yang_module_info frr_isisd_info = {
1734         .name = "frr-isisd",
1735         .nodes = {
1736                 {
1737                         .xpath = "/frr-isisd:isis/instance",
1738                         .cbs.create = isis_instance_create,
1739                         .cbs.delete = isis_instance_delete,
1740                         .cbs.cli_show = cli_show_router_isis,
1741                         .priority = NB_DFLT_PRIORITY - 1,
1742                 },
1743                 {
1744                         .xpath = "/frr-isisd:isis/instance/is-type",
1745                         .cbs.modify = isis_instance_is_type_modify,
1746                         .cbs.cli_show = cli_show_isis_is_type,
1747                 },
1748                 {
1749                         .xpath = "/frr-isisd:isis/instance/area-address",
1750                         .cbs.create = isis_instance_area_address_create,
1751                         .cbs.delete = isis_instance_area_address_delete,
1752                         .cbs.cli_show = cli_show_isis_area_address,
1753                 },
1754                 {
1755                         .xpath = "/frr-isisd:isis/instance/dynamic-hostname",
1756                         .cbs.modify = isis_instance_dynamic_hostname_modify,
1757                         .cbs.cli_show = cli_show_isis_dynamic_hostname,
1758                 },
1759                 {
1760                         .xpath = "/frr-isisd:isis/instance/attached",
1761                         .cbs.create = isis_instance_attached_create,
1762                         .cbs.delete = isis_instance_attached_delete,
1763                         .cbs.cli_show = cli_show_isis_attached,
1764                 },
1765                 {
1766                         .xpath = "/frr-isisd:isis/instance/overload",
1767                         .cbs.create = isis_instance_overload_create,
1768                         .cbs.delete = isis_instance_overload_delete,
1769                         .cbs.cli_show = cli_show_isis_overload,
1770                 },
1771                 {
1772                         .xpath = "/frr-isisd:isis/instance/metric-style",
1773                         .cbs.modify = isis_instance_metric_style_modify,
1774                 },
1775                 {
1776                         .xpath = "/frr-isisd:isis/instance/purge-originator",
1777                         .cbs.create = isis_instance_purge_originator_create,
1778                         .cbs.delete = isis_instance_purge_originator_delete,
1779                 },
1780                 {
1781                         .xpath = "/frr-isisd:isis/instance/lsp/mtu",
1782                         .cbs.modify = isis_instance_lsp_mtu_modify,
1783                 },
1784                 {
1785                         .xpath = "/frr-isisd:isis/instance/lsp/refresh-interval/level-1",
1786                         .cbs.modify = isis_instance_lsp_refresh_interval_level_1_modify,
1787                 },
1788                 {
1789                         .xpath = "/frr-isisd:isis/instance/lsp/refresh-interval/level-2",
1790                         .cbs.modify = isis_instance_lsp_refresh_interval_level_2_modify,
1791                 },
1792                 {
1793                         .xpath = "/frr-isisd:isis/instance/lsp/maximum-lifetime/level-1",
1794                         .cbs.modify = isis_instance_lsp_maximum_lifetime_level_1_modify,
1795                 },
1796                 {
1797                         .xpath = "/frr-isisd:isis/instance/lsp/maximum-lifetime/level-2",
1798                         .cbs.modify = isis_instance_lsp_maximum_lifetime_level_2_modify,
1799                 },
1800                 {
1801                         .xpath = "/frr-isisd:isis/instance/lsp/generation-interval/level-1",
1802                         .cbs.modify = isis_instance_lsp_generation_interval_level_1_modify,
1803                 },
1804                 {
1805                         .xpath = "/frr-isisd:isis/instance/lsp/generation-interval/level-2",
1806                         .cbs.modify = isis_instance_lsp_generation_interval_level_2_modify,
1807                 },
1808                 {
1809                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay",
1810                         .cbs.create = isis_instance_spf_ietf_backoff_delay_create,
1811                         .cbs.delete = isis_instance_spf_ietf_backoff_delay_delete,
1812                 },
1813                 {
1814                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/init-delay",
1815                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_init_delay_modify,
1816                 },
1817                 {
1818                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/short-delay",
1819                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_short_delay_modify,
1820                 },
1821                 {
1822                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/long-delay",
1823                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_long_delay_modify,
1824                 },
1825                 {
1826                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/hold-down",
1827                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_hold_down_modify,
1828                 },
1829                 {
1830                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/time-to-learn",
1831                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_time_to_learn_modify,
1832                 },
1833                 {
1834                         .xpath = "/frr-isisd:isis/instance/spf/minimum-interval/level-1",
1835                         .cbs.modify = isis_instance_spf_minimum_interval_level_1_modify,
1836                 },
1837                 {
1838                         .xpath = "/frr-isisd:isis/instance/spf/minimum-interval/level-2",
1839                         .cbs.modify = isis_instance_spf_minimum_interval_level_2_modify,
1840                 },
1841                 {
1842                         .xpath = "/frr-isisd:isis/instance/area-password",
1843                         .cbs.create = isis_instance_area_password_create,
1844                         .cbs.delete = isis_instance_area_password_delete,
1845                 },
1846                 {
1847                         .xpath = "/frr-isisd:isis/instance/area-password/password",
1848                         .cbs.modify = isis_instance_area_password_password_modify,
1849                 },
1850                 {
1851                         .xpath = "/frr-isisd:isis/instance/area-password/password-type",
1852                         .cbs.modify = isis_instance_area_password_password_type_modify,
1853                 },
1854                 {
1855                         .xpath = "/frr-isisd:isis/instance/area-password/authenticate-snp",
1856                         .cbs.modify = isis_instance_area_password_authenticate_snp_modify,
1857                 },
1858                 {
1859                         .xpath = "/frr-isisd:isis/instance/domain-password",
1860                         .cbs.create = isis_instance_domain_password_create,
1861                         .cbs.delete = isis_instance_domain_password_delete,
1862                 },
1863                 {
1864                         .xpath = "/frr-isisd:isis/instance/domain-password/password",
1865                         .cbs.modify = isis_instance_domain_password_password_modify,
1866                 },
1867                 {
1868                         .xpath = "/frr-isisd:isis/instance/domain-password/password-type",
1869                         .cbs.modify = isis_instance_domain_password_password_type_modify,
1870                 },
1871                 {
1872                         .xpath = "/frr-isisd:isis/instance/domain-password/authenticate-snp",
1873                         .cbs.modify = isis_instance_domain_password_authenticate_snp_modify,
1874                 },
1875                 {
1876                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv4",
1877                         .cbs.create = isis_instance_default_information_originate_ipv4_create,
1878                         .cbs.delete = isis_instance_default_information_originate_ipv4_delete,
1879                 },
1880                 {
1881                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv4/always",
1882                         .cbs.create = isis_instance_default_information_originate_ipv4_always_create,
1883                         .cbs.delete = isis_instance_default_information_originate_ipv4_always_delete,
1884                 },
1885                 {
1886                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv4/route-map",
1887                         .cbs.modify = isis_instance_default_information_originate_ipv4_route_map_modify,
1888                         .cbs.delete = isis_instance_default_information_originate_ipv4_route_map_delete,
1889                 },
1890                 {
1891                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv4/metric",
1892                         .cbs.modify = isis_instance_default_information_originate_ipv4_metric_modify,
1893                         .cbs.delete = isis_instance_default_information_originate_ipv4_metric_delete,
1894                 },
1895                 {
1896                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv6",
1897                         .cbs.create = isis_instance_default_information_originate_ipv6_create,
1898                         .cbs.delete = isis_instance_default_information_originate_ipv6_delete,
1899                 },
1900                 {
1901                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv6/always",
1902                         .cbs.create = isis_instance_default_information_originate_ipv6_always_create,
1903                         .cbs.delete = isis_instance_default_information_originate_ipv6_always_delete,
1904                 },
1905                 {
1906                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv6/route-map",
1907                         .cbs.modify = isis_instance_default_information_originate_ipv6_route_map_modify,
1908                         .cbs.delete = isis_instance_default_information_originate_ipv6_route_map_delete,
1909                 },
1910                 {
1911                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv6/metric",
1912                         .cbs.modify = isis_instance_default_information_originate_ipv6_metric_modify,
1913                         .cbs.delete = isis_instance_default_information_originate_ipv6_metric_delete,
1914                 },
1915                 {
1916                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv4",
1917                         .cbs.create = isis_instance_redistribute_ipv4_create,
1918                         .cbs.delete = isis_instance_redistribute_ipv4_delete,
1919                 },
1920                 {
1921                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv4/route-map",
1922                         .cbs.modify = isis_instance_redistribute_ipv4_route_map_modify,
1923                         .cbs.delete = isis_instance_redistribute_ipv4_route_map_delete,
1924                 },
1925                 {
1926                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv4/metric",
1927                         .cbs.modify = isis_instance_redistribute_ipv4_metric_modify,
1928                         .cbs.delete = isis_instance_redistribute_ipv4_metric_delete,
1929                 },
1930                 {
1931                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv6",
1932                         .cbs.create = isis_instance_redistribute_ipv6_create,
1933                         .cbs.delete = isis_instance_redistribute_ipv6_delete,
1934                 },
1935                 {
1936                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv6/route-map",
1937                         .cbs.modify = isis_instance_redistribute_ipv6_route_map_modify,
1938                         .cbs.delete = isis_instance_redistribute_ipv6_route_map_delete,
1939                 },
1940                 {
1941                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv6/metric",
1942                         .cbs.modify = isis_instance_redistribute_ipv6_metric_modify,
1943                         .cbs.delete = isis_instance_redistribute_ipv6_metric_delete,
1944                 },
1945                 {
1946                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv4-multicast",
1947                         .cbs.create = isis_instance_multi_topology_ipv4_multicast_create,
1948                         .cbs.delete = isis_instance_multi_topology_ipv4_multicast_delete,
1949                 },
1950                 {
1951                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv4-multicast/overload",
1952                         .cbs.create = isis_instance_multi_topology_ipv4_multicast_overload_create,
1953                         .cbs.delete = isis_instance_multi_topology_ipv4_multicast_overload_delete,
1954                 },
1955                 {
1956                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv4-management",
1957                         .cbs.create = isis_instance_multi_topology_ipv4_management_create,
1958                         .cbs.delete = isis_instance_multi_topology_ipv4_management_delete,
1959                 },
1960                 {
1961                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv4-management/overload",
1962                         .cbs.create = isis_instance_multi_topology_ipv4_management_overload_create,
1963                         .cbs.delete = isis_instance_multi_topology_ipv4_management_overload_delete,
1964                 },
1965                 {
1966                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-unicast",
1967                         .cbs.create = isis_instance_multi_topology_ipv6_unicast_create,
1968                         .cbs.delete = isis_instance_multi_topology_ipv6_unicast_delete,
1969                 },
1970                 {
1971                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-unicast/overload",
1972                         .cbs.create = isis_instance_multi_topology_ipv6_unicast_overload_create,
1973                         .cbs.delete = isis_instance_multi_topology_ipv6_unicast_overload_delete,
1974                 },
1975                 {
1976                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-multicast",
1977                         .cbs.create = isis_instance_multi_topology_ipv6_multicast_create,
1978                         .cbs.delete = isis_instance_multi_topology_ipv6_multicast_delete,
1979                 },
1980                 {
1981                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-multicast/overload",
1982                         .cbs.create = isis_instance_multi_topology_ipv6_multicast_overload_create,
1983                         .cbs.delete = isis_instance_multi_topology_ipv6_multicast_overload_delete,
1984                 },
1985                 {
1986                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-management",
1987                         .cbs.create = isis_instance_multi_topology_ipv6_management_create,
1988                         .cbs.delete = isis_instance_multi_topology_ipv6_management_delete,
1989                 },
1990                 {
1991                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-management/overload",
1992                         .cbs.create = isis_instance_multi_topology_ipv6_management_overload_create,
1993                         .cbs.delete = isis_instance_multi_topology_ipv6_management_overload_delete,
1994                 },
1995                 {
1996                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-dstsrc",
1997                         .cbs.create = isis_instance_multi_topology_ipv6_dstsrc_create,
1998                         .cbs.delete = isis_instance_multi_topology_ipv6_dstsrc_delete,
1999                 },
2000                 {
2001                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-dstsrc/overload",
2002                         .cbs.create = isis_instance_multi_topology_ipv6_dstsrc_overload_create,
2003                         .cbs.delete = isis_instance_multi_topology_ipv6_dstsrc_overload_delete,
2004                 },
2005                 {
2006                         .xpath = "/frr-isisd:isis/instance/log-adjacency-changes",
2007                         .cbs.create = isis_instance_log_adjacency_changes_create,
2008                         .cbs.delete = isis_instance_log_adjacency_changes_delete,
2009                 },
2010                 {
2011                         .xpath = "/frr-isisd:isis/mpls-te",
2012                         .cbs.create = isis_mpls_te_create,
2013                         .cbs.delete = isis_mpls_te_delete,
2014                 },
2015                 {
2016                         .xpath = "/frr-isisd:isis/mpls-te/router-address",
2017                         .cbs.modify = isis_mpls_te_router_address_modify,
2018                         .cbs.delete = isis_mpls_te_router_address_delete,
2019                 },
2020                 {
2021                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis",
2022                         .cbs.create = lib_interface_isis_create,
2023                         .cbs.delete = lib_interface_isis_delete,
2024                 },
2025                 {
2026                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/area-tag",
2027                         .cbs.modify = lib_interface_isis_area_tag_modify,
2028                 },
2029                 {
2030                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/circuit-type",
2031                         .cbs.modify = lib_interface_isis_circuit_type_modify,
2032                 },
2033                 {
2034                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/ipv4-routing",
2035                         .cbs.create = lib_interface_isis_ipv4_routing_create,
2036                         .cbs.delete = lib_interface_isis_ipv4_routing_delete,
2037                         .cbs.cli_show = cli_show_ip_isis_ipv4,
2038                 },
2039                 {
2040                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/ipv6-routing",
2041                         .cbs.create = lib_interface_isis_ipv6_routing_create,
2042                         .cbs.delete = lib_interface_isis_ipv6_routing_delete,
2043                         .cbs.cli_show = cli_show_ip_isis_ipv6,
2044                 },
2045                 {
2046                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-1",
2047                         .cbs.modify = lib_interface_isis_csnp_interval_level_1_modify,
2048                 },
2049                 {
2050                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-2",
2051                         .cbs.modify = lib_interface_isis_csnp_interval_level_2_modify,
2052                 },
2053                 {
2054                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-1",
2055                         .cbs.modify = lib_interface_isis_psnp_interval_level_1_modify,
2056                 },
2057                 {
2058                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-2",
2059                         .cbs.modify = lib_interface_isis_psnp_interval_level_2_modify,
2060                 },
2061                 {
2062                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/padding",
2063                         .cbs.modify = lib_interface_isis_hello_padding_modify,
2064                 },
2065                 {
2066                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-1",
2067                         .cbs.modify = lib_interface_isis_hello_interval_level_1_modify,
2068                 },
2069                 {
2070                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-2",
2071                         .cbs.modify = lib_interface_isis_hello_interval_level_2_modify,
2072                 },
2073                 {
2074                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-1",
2075                         .cbs.modify = lib_interface_isis_hello_multiplier_level_1_modify,
2076                 },
2077                 {
2078                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-2",
2079                         .cbs.modify = lib_interface_isis_hello_multiplier_level_2_modify,
2080                 },
2081                 {
2082                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/metric/level-1",
2083                         .cbs.modify = lib_interface_isis_metric_level_1_modify,
2084                 },
2085                 {
2086                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/metric/level-2",
2087                         .cbs.modify = lib_interface_isis_metric_level_2_modify,
2088                 },
2089                 {
2090                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/priority/level-1",
2091                         .cbs.modify = lib_interface_isis_priority_level_1_modify,
2092                 },
2093                 {
2094                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/priority/level-2",
2095                         .cbs.modify = lib_interface_isis_priority_level_2_modify,
2096                 },
2097                 {
2098                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/network-type",
2099                         .cbs.modify = lib_interface_isis_network_type_modify,
2100                         .cbs.delete = lib_interface_isis_network_type_delete,
2101                 },
2102                 {
2103                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/passive",
2104                         .cbs.create = lib_interface_isis_passive_create,
2105                         .cbs.delete = lib_interface_isis_passive_delete,
2106                 },
2107                 {
2108                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/password",
2109                         .cbs.create = lib_interface_isis_password_create,
2110                         .cbs.delete = lib_interface_isis_password_delete,
2111                 },
2112                 {
2113                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/password/password",
2114                         .cbs.modify = lib_interface_isis_password_password_modify,
2115                 },
2116                 {
2117                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/password/password-type",
2118                         .cbs.modify = lib_interface_isis_password_password_type_modify,
2119                 },
2120                 {
2121                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/disable-three-way-handshake",
2122                         .cbs.create = lib_interface_isis_disable_three_way_handshake_create,
2123                         .cbs.delete = lib_interface_isis_disable_three_way_handshake_delete,
2124                 },
2125                 {
2126                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-unicast",
2127                         .cbs.modify = lib_interface_isis_multi_topology_ipv4_unicast_modify,
2128                 },
2129                 {
2130                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-multicast",
2131                         .cbs.modify = lib_interface_isis_multi_topology_ipv4_multicast_modify,
2132                 },
2133                 {
2134                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-management",
2135                         .cbs.modify = lib_interface_isis_multi_topology_ipv4_management_modify,
2136                 },
2137                 {
2138                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-unicast",
2139                         .cbs.modify = lib_interface_isis_multi_topology_ipv6_unicast_modify,
2140                 },
2141                 {
2142                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-multicast",
2143                         .cbs.modify = lib_interface_isis_multi_topology_ipv6_multicast_modify,
2144                 },
2145                 {
2146                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-management",
2147                         .cbs.modify = lib_interface_isis_multi_topology_ipv6_management_modify,
2148                 },
2149                 {
2150                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-dstsrc",
2151                         .cbs.modify = lib_interface_isis_multi_topology_ipv6_dstsrc_modify,
2152                 },
2153                 {
2154                         .xpath = NULL,
2155                 },
2156         }
2157 };