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         struct isis_area *area;
 325         bool old_metric, new_metric;
 326         enum isis_metric_style metric_style = yang_dnode_get_enum(dnode, NULL);
 327
 328         if (event != NB_EV_APPLY)
 329                 return NB_OK;
 330
 331         area = yang_dnode_get_entry(dnode, true);
 332         old_metric = (metric_style == ISIS_WIDE_METRIC) ? false : true;
 333         new_metric = (metric_style == ISIS_NARROW_METRIC) ? false : true;
 334         isis_area_metricstyle_set(area, old_metric, new_metric);
 335
 336         return NB_OK;
 337 }
 338
 339 /*
 340  * XPath: /frr-isisd:isis/instance/purge-originator
 341  */
 342 static int isis_instance_purge_originator_create(enum nb_event event,
 343                                                  const struct lyd_node *dnode,
 344                                                  union nb_resource *resource)
 345 {
 346         /* TODO: implement me. */
 347         return NB_OK;
 348 }
 349
 350 static int isis_instance_purge_originator_delete(enum nb_event event,
 351                                                  const struct lyd_node *dnode)
 352 {
 353         /* TODO: implement me. */
 354         return NB_OK;
 355 }
 356
 357 /*
 358  * XPath: /frr-isisd:isis/instance/lsp/mtu
 359  */
 360 static int isis_instance_lsp_mtu_modify(enum nb_event event,
 361                                         const struct lyd_node *dnode,
 362                                         union nb_resource *resource)
 363 {
 364         /* TODO: implement me. */
 365         return NB_OK;
 366 }
 367
 368 /*
 369  * XPath: /frr-isisd:isis/instance/lsp/refresh-interval/level-1
 370  */
 371 static int
 372 isis_instance_lsp_refresh_interval_level_1_modify(enum nb_event event,
 373                                                   const struct lyd_node *dnode,
 374                                                   union nb_resource *resource)
 375 {
 376         /* TODO: implement me. */
 377         return NB_OK;
 378 }
 379
 380 /*
 381  * XPath: /frr-isisd:isis/instance/lsp/refresh-interval/level-2
 382  */
 383 static int
 384 isis_instance_lsp_refresh_interval_level_2_modify(enum nb_event event,
 385                                                   const struct lyd_node *dnode,
 386                                                   union nb_resource *resource)
 387 {
 388         /* TODO: implement me. */
 389         return NB_OK;
 390 }
 391
 392 /*
 393  * XPath: /frr-isisd:isis/instance/lsp/maximum-lifetime/level-1
 394  */
 395 static int
 396 isis_instance_lsp_maximum_lifetime_level_1_modify(enum nb_event event,
 397                                                   const struct lyd_node *dnode,
 398                                                   union nb_resource *resource)
 399 {
 400         /* TODO: implement me. */
 401         return NB_OK;
 402 }
 403
 404 /*
 405  * XPath: /frr-isisd:isis/instance/lsp/maximum-lifetime/level-2
 406  */
 407 static int
 408 isis_instance_lsp_maximum_lifetime_level_2_modify(enum nb_event event,
 409                                                   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-1
 418  */
 419 static int isis_instance_lsp_generation_interval_level_1_modify(
 420         enum nb_event event, const struct lyd_node *dnode,
 421         union nb_resource *resource)
 422 {
 423         struct isis_area *area;
 424         uint16_t gen_int;
 425
 426         if (event != NB_EV_APPLY)
 427                 return NB_OK;
 428
 429         gen_int = yang_dnode_get_uint16(dnode, NULL);
 430         area = yang_dnode_get_entry(dnode, true);
 431         area->lsp_gen_interval[0] = gen_int;
 432
 433         return NB_OK;
 434 }
 435
 436 /*
 437  * XPath: /frr-isisd:isis/instance/lsp/generation-interval/level-2
 438  */
 439 static int isis_instance_lsp_generation_interval_level_2_modify(
 440         enum nb_event event, const struct lyd_node *dnode,
 441         union nb_resource *resource)
 442 {
 443         struct isis_area *area;
 444         uint16_t gen_int;
 445
 446         if (event != NB_EV_APPLY)
 447                 return NB_OK;
 448
 449         gen_int = yang_dnode_get_uint16(dnode, NULL);
 450         area = yang_dnode_get_entry(dnode, true);
 451         area->lsp_gen_interval[1] = gen_int;
 452
 453         return NB_OK;
 454 }
 455
 456 /*
 457  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay
 458  */
 459 static int
 460 isis_instance_spf_ietf_backoff_delay_create(enum nb_event event,
 461                                             const struct lyd_node *dnode,
 462                                             union nb_resource *resource)
 463 {
 464         /* TODO: implement me. */
 465         return NB_OK;
 466 }
 467
 468 static int
 469 isis_instance_spf_ietf_backoff_delay_delete(enum nb_event event,
 470                                             const struct lyd_node *dnode)
 471 {
 472         /* TODO: implement me. */
 473         return NB_OK;
 474 }
 475
 476 /*
 477  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/init-delay
 478  */
 479 static int isis_instance_spf_ietf_backoff_delay_init_delay_modify(
 480         enum nb_event event, const struct lyd_node *dnode,
 481         union nb_resource *resource)
 482 {
 483         /* TODO: implement me. */
 484         return NB_OK;
 485 }
 486
 487 /*
 488  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/short-delay
 489  */
 490 static int isis_instance_spf_ietf_backoff_delay_short_delay_modify(
 491         enum nb_event event, const struct lyd_node *dnode,
 492         union nb_resource *resource)
 493 {
 494         /* TODO: implement me. */
 495         return NB_OK;
 496 }
 497
 498 /*
 499  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/long-delay
 500  */
 501 static int isis_instance_spf_ietf_backoff_delay_long_delay_modify(
 502         enum nb_event event, const struct lyd_node *dnode,
 503         union nb_resource *resource)
 504 {
 505         /* TODO: implement me. */
 506         return NB_OK;
 507 }
 508
 509 /*
 510  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/hold-down
 511  */
 512 static int isis_instance_spf_ietf_backoff_delay_hold_down_modify(
 513         enum nb_event event, const struct lyd_node *dnode,
 514         union nb_resource *resource)
 515 {
 516         /* TODO: implement me. */
 517         return NB_OK;
 518 }
 519
 520 /*
 521  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/time-to-learn
 522  */
 523 static int isis_instance_spf_ietf_backoff_delay_time_to_learn_modify(
 524         enum nb_event event, const struct lyd_node *dnode,
 525         union nb_resource *resource)
 526 {
 527         /* TODO: implement me. */
 528         return NB_OK;
 529 }
 530
 531 /*
 532  * XPath: /frr-isisd:isis/instance/spf/minimum-interval/level-1
 533  */
 534 static int
 535 isis_instance_spf_minimum_interval_level_1_modify(enum nb_event event,
 536                                                   const struct lyd_node *dnode,
 537                                                   union nb_resource *resource)
 538 {
 539         /* TODO: implement me. */
 540         return NB_OK;
 541 }
 542
 543 /*
 544  * XPath: /frr-isisd:isis/instance/spf/minimum-interval/level-2
 545  */
 546 static int
 547 isis_instance_spf_minimum_interval_level_2_modify(enum nb_event event,
 548                                                   const struct lyd_node *dnode,
 549                                                   union nb_resource *resource)
 550 {
 551         /* TODO: implement me. */
 552         return NB_OK;
 553 }
 554
 555 /*
 556  * XPath: /frr-isisd:isis/instance/area-password
 557  */
 558 static void area_password_apply_finish(const struct lyd_node *dnode)
 559 {
 560         const char *password = yang_dnode_get_string(dnode, "./password");
 561         struct isis_area *area = yang_dnode_get_entry(dnode, true);
 562         int pass_type = yang_dnode_get_enum(dnode, "./password-type");
 563         uint8_t snp_auth = yang_dnode_get_enum(dnode, "./authenticate-snp");
 564
 565         switch (pass_type) {
 566         case ISIS_PASSWD_TYPE_CLEARTXT:
 567                 isis_area_passwd_cleartext_set(area, IS_LEVEL_1, password,
 568                                                snp_auth);
 569                 break;
 570         case ISIS_PASSWD_TYPE_HMAC_MD5:
 571                 isis_area_passwd_hmac_md5_set(area, IS_LEVEL_1, password,
 572                                               snp_auth);
 573                 break;
 574         }
 575 }
 576
 577 static int isis_instance_area_password_create(enum nb_event event,
 578                                               const struct lyd_node *dnode,
 579                                               union nb_resource *resource)
 580 {
 581         /* actual setting is done in apply_finish */
 582         return NB_OK;
 583 }
 584
 585 static int isis_instance_area_password_delete(enum nb_event event,
 586                                               const struct lyd_node *dnode)
 587 {
 588         struct isis_area *area;
 589
 590         if (event != NB_EV_APPLY)
 591                 return NB_OK;
 592
 593         area = yang_dnode_get_entry(dnode, true);
 594         isis_area_passwd_unset(area, IS_LEVEL_1);
 595
 596         return NB_OK;
 597 }
 598
 599 /*
 600  * XPath: /frr-isisd:isis/instance/area-password/password
 601  */
 602 static int
 603 isis_instance_area_password_password_modify(enum nb_event event,
 604                                             const struct lyd_node *dnode,
 605                                             union nb_resource *resource)
 606 {
 607         /* actual setting is done in apply_finish */
 608         return NB_OK;
 609 }
 610
 611 /*
 612  * XPath: /frr-isisd:isis/instance/area-password/password-type
 613  */
 614 static int
 615 isis_instance_area_password_password_type_modify(enum nb_event event,
 616                                                  const struct lyd_node *dnode,
 617                                                  union nb_resource *resource)
 618 {
 619         /* actual setting is done in apply_finish */
 620         return NB_OK;
 621 }
 622
 623 /*
 624  * XPath: /frr-isisd:isis/instance/area-password/authenticate-snp
 625  */
 626 static int isis_instance_area_password_authenticate_snp_modify(
 627         enum nb_event event, const struct lyd_node *dnode,
 628         union nb_resource *resource)
 629 {
 630         /* actual setting is done in apply_finish */
 631         return NB_OK;
 632 }
 633
 634 /*
 635  * XPath: /frr-isisd:isis/instance/domain-password
 636  */
 637 static void domain_password_apply_finish(const struct lyd_node *dnode)
 638 {
 639         const char *password = yang_dnode_get_string(dnode, "./password");
 640         struct isis_area *area = yang_dnode_get_entry(dnode, true);
 641         int pass_type = yang_dnode_get_enum(dnode, "./password-type");
 642         uint8_t snp_auth = yang_dnode_get_enum(dnode, "./authenticate-snp");
 643
 644         switch (pass_type) {
 645         case ISIS_PASSWD_TYPE_CLEARTXT:
 646                 isis_area_passwd_cleartext_set(area, IS_LEVEL_2, password,
 647                                                snp_auth);
 648                 break;
 649         case ISIS_PASSWD_TYPE_HMAC_MD5:
 650                 isis_area_passwd_hmac_md5_set(area, IS_LEVEL_2, password,
 651                                               snp_auth);
 652                 break;
 653         }
 654 }
 655
 656 static int isis_instance_domain_password_create(enum nb_event event,
 657                                                 const struct lyd_node *dnode,
 658                                                 union nb_resource *resource)
 659 {
 660         /* actual setting is done in apply_finish */
 661         return NB_OK;
 662 }
 663
 664 static int isis_instance_domain_password_delete(enum nb_event event,
 665                                                 const struct lyd_node *dnode)
 666 {
 667         struct isis_area *area;
 668
 669         if (event != NB_EV_APPLY)
 670                 return NB_OK;
 671
 672         area = yang_dnode_get_entry(dnode, true);
 673         isis_area_passwd_unset(area, IS_LEVEL_2);
 674
 675         return NB_OK;
 676 }
 677
 678 /*
 679  * XPath: /frr-isisd:isis/instance/domain-password/password
 680  */
 681 static int
 682 isis_instance_domain_password_password_modify(enum nb_event event,
 683                                               const struct lyd_node *dnode,
 684                                               union nb_resource *resource)
 685 {
 686         /* actual setting is done in apply_finish */
 687         return NB_OK;
 688 }
 689
 690 /*
 691  * XPath: /frr-isisd:isis/instance/domain-password/password-type
 692  */
 693 static int
 694 isis_instance_domain_password_password_type_modify(enum nb_event event,
 695                                                    const struct lyd_node *dnode,
 696                                                    union nb_resource *resource)
 697 {
 698         /* actual setting is done in apply_finish */
 699         return NB_OK;
 700 }
 701
 702 /*
 703  * XPath: /frr-isisd:isis/instance/domain-password/authenticate-snp
 704  */
 705 static int isis_instance_domain_password_authenticate_snp_modify(
 706         enum nb_event event, const struct lyd_node *dnode,
 707         union nb_resource *resource)
 708 {
 709         /* actual setting is done in apply_finish */
 710         return NB_OK;
 711 }
 712
 713 /*
 714  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv4
 715  */
 716 static int isis_instance_default_information_originate_ipv4_create(
 717         enum nb_event event, const struct lyd_node *dnode,
 718         union nb_resource *resource)
 719 {
 720         /* TODO: implement me. */
 721         return NB_OK;
 722 }
 723
 724 static int isis_instance_default_information_originate_ipv4_delete(
 725         enum nb_event event, const struct lyd_node *dnode)
 726 {
 727         /* TODO: implement me. */
 728         return NB_OK;
 729 }
 730
 731 /*
 732  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv4/always
 733  */
 734 static int isis_instance_default_information_originate_ipv4_always_create(
 735         enum nb_event event, const struct lyd_node *dnode,
 736         union nb_resource *resource)
 737 {
 738         /* TODO: implement me. */
 739         return NB_OK;
 740 }
 741
 742 static int isis_instance_default_information_originate_ipv4_always_delete(
 743         enum nb_event event, const struct lyd_node *dnode)
 744 {
 745         /* TODO: implement me. */
 746         return NB_OK;
 747 }
 748
 749 /*
 750  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv4/route-map
 751  */
 752 static int isis_instance_default_information_originate_ipv4_route_map_modify(
 753         enum nb_event event, const struct lyd_node *dnode,
 754         union nb_resource *resource)
 755 {
 756         /* TODO: implement me. */
 757         return NB_OK;
 758 }
 759
 760 static int isis_instance_default_information_originate_ipv4_route_map_delete(
 761         enum nb_event event, const struct lyd_node *dnode)
 762 {
 763         /* TODO: implement me. */
 764         return NB_OK;
 765 }
 766
 767 /*
 768  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv4/metric
 769  */
 770 static int isis_instance_default_information_originate_ipv4_metric_modify(
 771         enum nb_event event, const struct lyd_node *dnode,
 772         union nb_resource *resource)
 773 {
 774         /* TODO: implement me. */
 775         return NB_OK;
 776 }
 777
 778 static int isis_instance_default_information_originate_ipv4_metric_delete(
 779         enum nb_event event, const struct lyd_node *dnode)
 780 {
 781         /* TODO: implement me. */
 782         return NB_OK;
 783 }
 784
 785 /*
 786  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv6
 787  */
 788 static int isis_instance_default_information_originate_ipv6_create(
 789         enum nb_event event, const struct lyd_node *dnode,
 790         union nb_resource *resource)
 791 {
 792         /* TODO: implement me. */
 793         return NB_OK;
 794 }
 795
 796 static int isis_instance_default_information_originate_ipv6_delete(
 797         enum nb_event event, const struct lyd_node *dnode)
 798 {
 799         /* TODO: implement me. */
 800         return NB_OK;
 801 }
 802
 803 /*
 804  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv6/always
 805  */
 806 static int isis_instance_default_information_originate_ipv6_always_create(
 807         enum nb_event event, const struct lyd_node *dnode,
 808         union nb_resource *resource)
 809 {
 810         /* TODO: implement me. */
 811         return NB_OK;
 812 }
 813
 814 static int isis_instance_default_information_originate_ipv6_always_delete(
 815         enum nb_event event, const struct lyd_node *dnode)
 816 {
 817         /* TODO: implement me. */
 818         return NB_OK;
 819 }
 820
 821 /*
 822  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv6/route-map
 823  */
 824 static int isis_instance_default_information_originate_ipv6_route_map_modify(
 825         enum nb_event event, const struct lyd_node *dnode,
 826         union nb_resource *resource)
 827 {
 828         /* TODO: implement me. */
 829         return NB_OK;
 830 }
 831
 832 static int isis_instance_default_information_originate_ipv6_route_map_delete(
 833         enum nb_event event, const struct lyd_node *dnode)
 834 {
 835         /* TODO: implement me. */
 836         return NB_OK;
 837 }
 838
 839 /*
 840  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv6/metric
 841  */
 842 static int isis_instance_default_information_originate_ipv6_metric_modify(
 843         enum nb_event event, const struct lyd_node *dnode,
 844         union nb_resource *resource)
 845 {
 846         /* TODO: implement me. */
 847         return NB_OK;
 848 }
 849
 850 static int isis_instance_default_information_originate_ipv6_metric_delete(
 851         enum nb_event event, const struct lyd_node *dnode)
 852 {
 853         /* TODO: implement me. */
 854         return NB_OK;
 855 }
 856
 857 /*
 858  * XPath: /frr-isisd:isis/instance/redistribute/ipv4
 859  */
 860 static int isis_instance_redistribute_ipv4_create(enum nb_event event,
 861                                                   const struct lyd_node *dnode,
 862                                                   union nb_resource *resource)
 863 {
 864         /* TODO: implement me. */
 865         return NB_OK;
 866 }
 867
 868 static int isis_instance_redistribute_ipv4_delete(enum nb_event event,
 869                                                   const struct lyd_node *dnode)
 870 {
 871         /* TODO: implement me. */
 872         return NB_OK;
 873 }
 874
 875 /*
 876  * XPath: /frr-isisd:isis/instance/redistribute/ipv4/route-map
 877  */
 878 static int
 879 isis_instance_redistribute_ipv4_route_map_modify(enum nb_event event,
 880                                                  const struct lyd_node *dnode,
 881                                                  union nb_resource *resource)
 882 {
 883         /* TODO: implement me. */
 884         return NB_OK;
 885 }
 886
 887 static int
 888 isis_instance_redistribute_ipv4_route_map_delete(enum nb_event event,
 889                                                  const struct lyd_node *dnode)
 890 {
 891         /* TODO: implement me. */
 892         return NB_OK;
 893 }
 894
 895 /*
 896  * XPath: /frr-isisd:isis/instance/redistribute/ipv4/metric
 897  */
 898 static int
 899 isis_instance_redistribute_ipv4_metric_modify(enum nb_event event,
 900                                               const struct lyd_node *dnode,
 901                                               union nb_resource *resource)
 902 {
 903         /* TODO: implement me. */
 904         return NB_OK;
 905 }
 906
 907 static int
 908 isis_instance_redistribute_ipv4_metric_delete(enum nb_event event,
 909                                               const struct lyd_node *dnode)
 910 {
 911         /* TODO: implement me. */
 912         return NB_OK;
 913 }
 914
 915 /*
 916  * XPath: /frr-isisd:isis/instance/redistribute/ipv6
 917  */
 918 static int isis_instance_redistribute_ipv6_create(enum nb_event event,
 919                                                   const struct lyd_node *dnode,
 920                                                   union nb_resource *resource)
 921 {
 922         /* TODO: implement me. */
 923         return NB_OK;
 924 }
 925
 926 static int isis_instance_redistribute_ipv6_delete(enum nb_event event,
 927                                                   const struct lyd_node *dnode)
 928 {
 929         /* TODO: implement me. */
 930         return NB_OK;
 931 }
 932
 933 /*
 934  * XPath: /frr-isisd:isis/instance/redistribute/ipv6/route-map
 935  */
 936 static int
 937 isis_instance_redistribute_ipv6_route_map_modify(enum nb_event event,
 938                                                  const struct lyd_node *dnode,
 939                                                  union nb_resource *resource)
 940 {
 941         /* TODO: implement me. */
 942         return NB_OK;
 943 }
 944
 945 static int
 946 isis_instance_redistribute_ipv6_route_map_delete(enum nb_event event,
 947                                                  const struct lyd_node *dnode)
 948 {
 949         /* TODO: implement me. */
 950         return NB_OK;
 951 }
 952
 953 /*
 954  * XPath: /frr-isisd:isis/instance/redistribute/ipv6/metric
 955  */
 956 static int
 957 isis_instance_redistribute_ipv6_metric_modify(enum nb_event event,
 958                                               const struct lyd_node *dnode,
 959                                               union nb_resource *resource)
 960 {
 961         /* TODO: implement me. */
 962         return NB_OK;
 963 }
 964
 965 static int
 966 isis_instance_redistribute_ipv6_metric_delete(enum nb_event event,
 967                                               const struct lyd_node *dnode)
 968 {
 969         /* TODO: implement me. */
 970         return NB_OK;
 971 }
 972
 973 /*
 974  * XPath: /frr-isisd:isis/instance/multi-topology/ipv4-multicast
 975  */
 976 static int
 977 isis_instance_multi_topology_ipv4_multicast_create(enum nb_event event,
 978                                                    const struct lyd_node *dnode,
 979                                                    union nb_resource *resource)
 980 {
 981         /* TODO: implement me. */
 982         return NB_OK;
 983 }
 984
 985 static int
 986 isis_instance_multi_topology_ipv4_multicast_delete(enum nb_event event,
 987                                                    const struct lyd_node *dnode)
 988 {
 989         /* TODO: implement me. */
 990         return NB_OK;
 991 }
 992
 993 /*
 994  * XPath: /frr-isisd:isis/instance/multi-topology/ipv4-multicast/overload
 995  */
 996 static int isis_instance_multi_topology_ipv4_multicast_overload_create(
 997         enum nb_event event, const struct lyd_node *dnode,
 998         union nb_resource *resource)
 999 {
1000         /* TODO: implement me. */
1001         return NB_OK;
1002 }
1003
1004 static int isis_instance_multi_topology_ipv4_multicast_overload_delete(
1005         enum nb_event event, const struct lyd_node *dnode)
1006 {
1007         /* TODO: implement me. */
1008         return NB_OK;
1009 }
1010
1011 /*
1012  * XPath: /frr-isisd:isis/instance/multi-topology/ipv4-management
1013  */
1014 static int isis_instance_multi_topology_ipv4_management_create(
1015         enum nb_event event, const struct lyd_node *dnode,
1016         union nb_resource *resource)
1017 {
1018         /* TODO: implement me. */
1019         return NB_OK;
1020 }
1021
1022 static int isis_instance_multi_topology_ipv4_management_delete(
1023         enum nb_event event, const struct lyd_node *dnode)
1024 {
1025         /* TODO: implement me. */
1026         return NB_OK;
1027 }
1028
1029 /*
1030  * XPath: /frr-isisd:isis/instance/multi-topology/ipv4-management/overload
1031  */
1032 static int isis_instance_multi_topology_ipv4_management_overload_create(
1033         enum nb_event event, const struct lyd_node *dnode,
1034         union nb_resource *resource)
1035 {
1036         /* TODO: implement me. */
1037         return NB_OK;
1038 }
1039
1040 static int isis_instance_multi_topology_ipv4_management_overload_delete(
1041         enum nb_event event, const struct lyd_node *dnode)
1042 {
1043         /* TODO: implement me. */
1044         return NB_OK;
1045 }
1046
1047 /*
1048  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-unicast
1049  */
1050 static int
1051 isis_instance_multi_topology_ipv6_unicast_create(enum nb_event event,
1052                                                  const struct lyd_node *dnode,
1053                                                  union nb_resource *resource)
1054 {
1055         /* TODO: implement me. */
1056         return NB_OK;
1057 }
1058
1059 static int
1060 isis_instance_multi_topology_ipv6_unicast_delete(enum nb_event event,
1061                                                  const struct lyd_node *dnode)
1062 {
1063         /* TODO: implement me. */
1064         return NB_OK;
1065 }
1066
1067 /*
1068  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-unicast/overload
1069  */
1070 static int isis_instance_multi_topology_ipv6_unicast_overload_create(
1071         enum nb_event event, const struct lyd_node *dnode,
1072         union nb_resource *resource)
1073 {
1074         /* TODO: implement me. */
1075         return NB_OK;
1076 }
1077
1078 static int isis_instance_multi_topology_ipv6_unicast_overload_delete(
1079         enum nb_event event, const struct lyd_node *dnode)
1080 {
1081         /* TODO: implement me. */
1082         return NB_OK;
1083 }
1084
1085 /*
1086  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-multicast
1087  */
1088 static int
1089 isis_instance_multi_topology_ipv6_multicast_create(enum nb_event event,
1090                                                    const struct lyd_node *dnode,
1091                                                    union nb_resource *resource)
1092 {
1093         /* TODO: implement me. */
1094         return NB_OK;
1095 }
1096
1097 static int
1098 isis_instance_multi_topology_ipv6_multicast_delete(enum nb_event event,
1099                                                    const struct lyd_node *dnode)
1100 {
1101         /* TODO: implement me. */
1102         return NB_OK;
1103 }
1104
1105 /*
1106  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-multicast/overload
1107  */
1108 static int isis_instance_multi_topology_ipv6_multicast_overload_create(
1109         enum nb_event event, const struct lyd_node *dnode,
1110         union nb_resource *resource)
1111 {
1112         /* TODO: implement me. */
1113         return NB_OK;
1114 }
1115
1116 static int isis_instance_multi_topology_ipv6_multicast_overload_delete(
1117         enum nb_event event, const struct lyd_node *dnode)
1118 {
1119         /* TODO: implement me. */
1120         return NB_OK;
1121 }
1122
1123 /*
1124  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-management
1125  */
1126 static int isis_instance_multi_topology_ipv6_management_create(
1127         enum nb_event event, const struct lyd_node *dnode,
1128         union nb_resource *resource)
1129 {
1130         /* TODO: implement me. */
1131         return NB_OK;
1132 }
1133
1134 static int isis_instance_multi_topology_ipv6_management_delete(
1135         enum nb_event event, const struct lyd_node *dnode)
1136 {
1137         /* TODO: implement me. */
1138         return NB_OK;
1139 }
1140
1141 /*
1142  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-management/overload
1143  */
1144 static int isis_instance_multi_topology_ipv6_management_overload_create(
1145         enum nb_event event, const struct lyd_node *dnode,
1146         union nb_resource *resource)
1147 {
1148         /* TODO: implement me. */
1149         return NB_OK;
1150 }
1151
1152 static int isis_instance_multi_topology_ipv6_management_overload_delete(
1153         enum nb_event event, const struct lyd_node *dnode)
1154 {
1155         /* TODO: implement me. */
1156         return NB_OK;
1157 }
1158
1159 /*
1160  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-dstsrc
1161  */
1162 static int
1163 isis_instance_multi_topology_ipv6_dstsrc_create(enum nb_event event,
1164                                                 const struct lyd_node *dnode,
1165                                                 union nb_resource *resource)
1166 {
1167         /* TODO: implement me. */
1168         return NB_OK;
1169 }
1170
1171 static int
1172 isis_instance_multi_topology_ipv6_dstsrc_delete(enum nb_event event,
1173                                                 const struct lyd_node *dnode)
1174 {
1175         /* TODO: implement me. */
1176         return NB_OK;
1177 }
1178
1179 /*
1180  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-dstsrc/overload
1181  */
1182 static int isis_instance_multi_topology_ipv6_dstsrc_overload_create(
1183         enum nb_event event, const struct lyd_node *dnode,
1184         union nb_resource *resource)
1185 {
1186         /* TODO: implement me. */
1187         return NB_OK;
1188 }
1189
1190 static int isis_instance_multi_topology_ipv6_dstsrc_overload_delete(
1191         enum nb_event event, const struct lyd_node *dnode)
1192 {
1193         /* TODO: implement me. */
1194         return NB_OK;
1195 }
1196
1197 /*
1198  * XPath: /frr-isisd:isis/instance/log-adjacency-changes
1199  */
1200 static int
1201 isis_instance_log_adjacency_changes_create(enum nb_event event,
1202                                            const struct lyd_node *dnode,
1203                                            union nb_resource *resource)
1204 {
1205         /* TODO: implement me. */
1206         return NB_OK;
1207 }
1208
1209 static int
1210 isis_instance_log_adjacency_changes_delete(enum nb_event event,
1211                                            const struct lyd_node *dnode)
1212 {
1213         /* TODO: implement me. */
1214         return NB_OK;
1215 }
1216
1217 /*
1218  * XPath: /frr-isisd:isis/mpls-te
1219  */
1220 static int isis_mpls_te_create(enum nb_event event,
1221                                const struct lyd_node *dnode,
1222                                union nb_resource *resource)
1223 {
1224         /* TODO: implement me. */
1225         return NB_OK;
1226 }
1227
1228 static int isis_mpls_te_delete(enum nb_event event,
1229                                const struct lyd_node *dnode)
1230 {
1231         /* TODO: implement me. */
1232         return NB_OK;
1233 }
1234
1235 /*
1236  * XPath: /frr-isisd:isis/mpls-te/router-address
1237  */
1238 static int isis_mpls_te_router_address_modify(enum nb_event event,
1239                                               const struct lyd_node *dnode,
1240                                               union nb_resource *resource)
1241 {
1242         /* TODO: implement me. */
1243         return NB_OK;
1244 }
1245
1246 static int isis_mpls_te_router_address_delete(enum nb_event event,
1247                                               const struct lyd_node *dnode)
1248 {
1249         /* TODO: implement me. */
1250         return NB_OK;
1251 }
1252
1253 /*
1254  * XPath: /frr-interface:lib/interface/frr-isisd:isis
1255  */
1256 static int lib_interface_isis_create(enum nb_event event,
1257                                      const struct lyd_node *dnode,
1258                                      union nb_resource *resource)
1259 {
1260         struct isis_area *area;
1261         struct interface *ifp;
1262         struct isis_circuit *circuit;
1263         const char *area_tag = yang_dnode_get_string(dnode, "./area-tag");
1264
1265         if (event != NB_EV_APPLY)
1266                 return NB_OK;
1267
1268         area = isis_area_lookup(area_tag);
1269         /* The area should have already be created. We are
1270          * setting the priority of the global isis area creation
1271          * slightly lower, so it should be executed first, but I
1272          * cannot rely on that so here I have to check.
1273          */
1274         if (!area) {
1275                 flog_err(
1276                         EC_LIB_NB_CB_CONFIG_APPLY,
1277                         "%s: attempt to create circuit for area %s before the area has been created",
1278                         __func__, area_tag);
1279                 abort();
1280         }
1281
1282         ifp = yang_dnode_get_entry(dnode, true);
1283         circuit = isis_circuit_create(area, ifp);
1284         assert(circuit->state == C_STATE_CONF || circuit->state == C_STATE_UP);
1285         yang_dnode_set_entry(dnode, circuit);
1286
1287         return NB_OK;
1288 }
1289
1290 static int lib_interface_isis_delete(enum nb_event event,
1291                                      const struct lyd_node *dnode)
1292 {
1293         struct isis_circuit *circuit;
1294
1295         if (event != NB_EV_APPLY)
1296                 return NB_OK;
1297
1298         circuit = yang_dnode_get_entry(dnode, true);
1299         if (!circuit)
1300                 return NB_ERR_INCONSISTENCY;
1301         /* delete circuit through csm changes */
1302         switch (circuit->state) {
1303         case C_STATE_UP:
1304                 isis_csm_state_change(IF_DOWN_FROM_Z, circuit,
1305                                       circuit->interface);
1306                 isis_csm_state_change(ISIS_DISABLE, circuit, circuit->area);
1307                 break;
1308         case C_STATE_CONF:
1309                 isis_csm_state_change(ISIS_DISABLE, circuit, circuit->area);
1310                 break;
1311         case C_STATE_INIT:
1312                 isis_csm_state_change(IF_DOWN_FROM_Z, circuit,
1313                                       circuit->interface);
1314                 break;
1315         }
1316
1317         return NB_OK;
1318 }
1319
1320 /*
1321  * XPath: /frr-interface:lib/interface/frr-isisd:isis/area-tag
1322  */
1323 static int lib_interface_isis_area_tag_modify(enum nb_event event,
1324                                               const struct lyd_node *dnode,
1325                                               union nb_resource *resource)
1326 {
1327         struct isis_circuit *circuit;
1328         struct interface *ifp;
1329         struct vrf *vrf;
1330         const char *area_tag, *ifname, *vrfname;
1331
1332         if (event == NB_EV_VALIDATE) {
1333                 /* libyang doesn't like relative paths across module boundaries
1334                  */
1335                 ifname = yang_dnode_get_string(dnode->parent->parent, "./name");
1336                 vrfname = yang_dnode_get_string(dnode->parent->parent, "./vrf");
1337                 vrf = vrf_lookup_by_name(vrfname);
1338                 assert(vrf);
1339                 ifp = if_lookup_by_name(ifname, vrf->vrf_id);
1340                 if (!ifp)
1341                         return NB_OK;
1342                 circuit = circuit_lookup_by_ifp(ifp, isis->init_circ_list);
1343                 area_tag = yang_dnode_get_string(dnode, NULL);
1344                 if (circuit && circuit->area && circuit->area->area_tag
1345                     && strcmp(circuit->area->area_tag, area_tag)) {
1346                         flog_warn(EC_LIB_NB_CB_CONFIG_VALIDATE,
1347                                   "ISIS circuit is already defined on %s",
1348                                   circuit->area->area_tag);
1349                         return NB_ERR_VALIDATION;
1350                 }
1351         }
1352
1353         return NB_OK;
1354 }
1355
1356 /*
1357  * XPath: /frr-interface:lib/interface/frr-isisd:isis/circuit-type
1358  */
1359 static int lib_interface_isis_circuit_type_modify(enum nb_event event,
1360                                                   const struct lyd_node *dnode,
1361                                                   union nb_resource *resource)
1362 {
1363         int circ_type = yang_dnode_get_enum(dnode, NULL);
1364         struct isis_circuit *circuit;
1365         struct interface *ifp;
1366         struct vrf *vrf;
1367         const char *ifname, *vrfname;
1368
1369         switch (event) {
1370         case NB_EV_VALIDATE:
1371                 /* libyang doesn't like relative paths across module boundaries
1372                  */
1373                 ifname = yang_dnode_get_string(dnode->parent->parent, "./name");
1374                 vrfname = yang_dnode_get_string(dnode->parent->parent, "./vrf");
1375                 vrf = vrf_lookup_by_name(vrfname);
1376                 assert(vrf);
1377                 ifp = if_lookup_by_name(ifname, vrf->vrf_id);
1378                 if (!ifp)
1379                         break;
1380                 circuit = circuit_lookup_by_ifp(ifp, isis->init_circ_list);
1381                 if (circuit && circuit->state == C_STATE_UP
1382                     && circuit->area->is_type != IS_LEVEL_1_AND_2
1383                     && circuit->area->is_type != circ_type) {
1384                         flog_warn(EC_LIB_NB_CB_CONFIG_VALIDATE,
1385                                   "Invalid circuit level for area %s",
1386                                   circuit->area->area_tag);
1387                         return NB_ERR_VALIDATION;
1388                 }
1389                 break;
1390         case NB_EV_PREPARE:
1391         case NB_EV_ABORT:
1392                 break;
1393         case NB_EV_APPLY:
1394                 circuit = yang_dnode_get_entry(dnode, true);
1395                 isis_circuit_is_type_set(circuit, circ_type);
1396                 break;
1397         }
1398
1399         return NB_OK;
1400 }
1401
1402 /*
1403  * XPath: /frr-interface:lib/interface/frr-isisd:isis/ipv4-routing
1404  */
1405 static int lib_interface_isis_ipv4_routing_create(enum nb_event event,
1406                                                   const struct lyd_node *dnode,
1407                                                   union nb_resource *resource)
1408 {
1409         bool ipv6;
1410         struct isis_circuit *circuit;
1411
1412         if (event != NB_EV_APPLY)
1413                 return NB_OK;
1414
1415         circuit = yang_dnode_get_entry(dnode, true);
1416         ipv6 = yang_dnode_exists(dnode, "../ipv6-routing");
1417         isis_circuit_af_set(circuit, true, ipv6);
1418
1419         return NB_OK;
1420 }
1421
1422 static int lib_interface_isis_ipv4_routing_delete(enum nb_event event,
1423                                                   const struct lyd_node *dnode)
1424 {
1425         bool ipv6;
1426         struct isis_circuit *circuit;
1427
1428         if (event != NB_EV_APPLY)
1429                 return NB_OK;
1430
1431         circuit = yang_dnode_get_entry(dnode, true);
1432         if (circuit && circuit->area) {
1433                 ipv6 = yang_dnode_exists(dnode, "../ipv6-routing");
1434                 isis_circuit_af_set(circuit, false, ipv6);
1435         }
1436
1437         return NB_OK;
1438 }
1439
1440 /*
1441  * XPath: /frr-interface:lib/interface/frr-isisd:isis/ipv6-routing
1442  */
1443 static int lib_interface_isis_ipv6_routing_create(enum nb_event event,
1444                                                   const struct lyd_node *dnode,
1445                                                   union nb_resource *resource)
1446 {
1447         bool ipv4;
1448         struct isis_circuit *circuit;
1449
1450         if (event != NB_EV_APPLY)
1451                 return NB_OK;
1452
1453         circuit = yang_dnode_get_entry(dnode, true);
1454         ipv4 = yang_dnode_exists(dnode, "../ipv6-routing");
1455         isis_circuit_af_set(circuit, ipv4, true);
1456
1457         return NB_OK;
1458 }
1459
1460 static int lib_interface_isis_ipv6_routing_delete(enum nb_event event,
1461                                                   const struct lyd_node *dnode)
1462 {
1463         bool ipv4;
1464         struct isis_circuit *circuit;
1465
1466         if (event != NB_EV_APPLY)
1467                 return NB_OK;
1468
1469         circuit = yang_dnode_get_entry(dnode, true);
1470         if (circuit->area) {
1471                 ipv4 = yang_dnode_exists(dnode, "../ipv4-routing");
1472                 isis_circuit_af_set(circuit, ipv4, false);
1473         }
1474
1475         return NB_OK;
1476 }
1477
1478 /*
1479  * XPath: /frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-1
1480  */
1481 static int
1482 lib_interface_isis_csnp_interval_level_1_modify(enum nb_event event,
1483                                                 const struct lyd_node *dnode,
1484                                                 union nb_resource *resource)
1485 {
1486         /* TODO: implement me. */
1487         return NB_OK;
1488 }
1489
1490 /*
1491  * XPath: /frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-2
1492  */
1493 static int
1494 lib_interface_isis_csnp_interval_level_2_modify(enum nb_event event,
1495                                                 const struct lyd_node *dnode,
1496                                                 union nb_resource *resource)
1497 {
1498         /* TODO: implement me. */
1499         return NB_OK;
1500 }
1501
1502 /*
1503  * XPath: /frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-1
1504  */
1505 static int
1506 lib_interface_isis_psnp_interval_level_1_modify(enum nb_event event,
1507                                                 const struct lyd_node *dnode,
1508                                                 union nb_resource *resource)
1509 {
1510         /* TODO: implement me. */
1511         return NB_OK;
1512 }
1513
1514 /*
1515  * XPath: /frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-2
1516  */
1517 static int
1518 lib_interface_isis_psnp_interval_level_2_modify(enum nb_event event,
1519                                                 const struct lyd_node *dnode,
1520                                                 union nb_resource *resource)
1521 {
1522         /* TODO: implement me. */
1523         return NB_OK;
1524 }
1525
1526 /*
1527  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/padding
1528  */
1529 static int lib_interface_isis_hello_padding_modify(enum nb_event event,
1530                                                    const struct lyd_node *dnode,
1531                                                    union nb_resource *resource)
1532 {
1533         /* TODO: implement me. */
1534         return NB_OK;
1535 }
1536
1537 /*
1538  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-1
1539  */
1540 static int
1541 lib_interface_isis_hello_interval_level_1_modify(enum nb_event event,
1542                                                  const struct lyd_node *dnode,
1543                                                  union nb_resource *resource)
1544 {
1545         /* TODO: implement me. */
1546         return NB_OK;
1547 }
1548
1549 /*
1550  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-2
1551  */
1552 static int
1553 lib_interface_isis_hello_interval_level_2_modify(enum nb_event event,
1554                                                  const struct lyd_node *dnode,
1555                                                  union nb_resource *resource)
1556 {
1557         /* TODO: implement me. */
1558         return NB_OK;
1559 }
1560
1561 /*
1562  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-1
1563  */
1564 static int
1565 lib_interface_isis_hello_multiplier_level_1_modify(enum nb_event event,
1566                                                    const struct lyd_node *dnode,
1567                                                    union nb_resource *resource)
1568 {
1569         /* TODO: implement me. */
1570         return NB_OK;
1571 }
1572
1573 /*
1574  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-2
1575  */
1576 static int
1577 lib_interface_isis_hello_multiplier_level_2_modify(enum nb_event event,
1578                                                    const struct lyd_node *dnode,
1579                                                    union nb_resource *resource)
1580 {
1581         /* TODO: implement me. */
1582         return NB_OK;
1583 }
1584
1585 /*
1586  * XPath: /frr-interface:lib/interface/frr-isisd:isis/metric/level-1
1587  */
1588 static int
1589 lib_interface_isis_metric_level_1_modify(enum nb_event event,
1590                                          const struct lyd_node *dnode,
1591                                          union nb_resource *resource)
1592 {
1593         /* TODO: implement me. */
1594         return NB_OK;
1595 }
1596
1597 /*
1598  * XPath: /frr-interface:lib/interface/frr-isisd:isis/metric/level-2
1599  */
1600 static int
1601 lib_interface_isis_metric_level_2_modify(enum nb_event event,
1602                                          const struct lyd_node *dnode,
1603                                          union nb_resource *resource)
1604 {
1605         /* TODO: implement me. */
1606         return NB_OK;
1607 }
1608
1609 /*
1610  * XPath: /frr-interface:lib/interface/frr-isisd:isis/priority/level-1
1611  */
1612 static int
1613 lib_interface_isis_priority_level_1_modify(enum nb_event event,
1614                                            const struct lyd_node *dnode,
1615                                            union nb_resource *resource)
1616 {
1617         /* TODO: implement me. */
1618         return NB_OK;
1619 }
1620
1621 /*
1622  * XPath: /frr-interface:lib/interface/frr-isisd:isis/priority/level-2
1623  */
1624 static int
1625 lib_interface_isis_priority_level_2_modify(enum nb_event event,
1626                                            const struct lyd_node *dnode,
1627                                            union nb_resource *resource)
1628 {
1629         /* TODO: implement me. */
1630         return NB_OK;
1631 }
1632
1633 /*
1634  * XPath: /frr-interface:lib/interface/frr-isisd:isis/network-type
1635  */
1636 static int lib_interface_isis_network_type_modify(enum nb_event event,
1637                                                   const struct lyd_node *dnode,
1638                                                   union nb_resource *resource)
1639 {
1640         /* TODO: implement me. */
1641         return NB_OK;
1642 }
1643
1644 static int lib_interface_isis_network_type_delete(enum nb_event event,
1645                                                   const struct lyd_node *dnode)
1646 {
1647         /* TODO: implement me. */
1648         return NB_OK;
1649 }
1650
1651 /*
1652  * XPath: /frr-interface:lib/interface/frr-isisd:isis/passive
1653  */
1654 static int lib_interface_isis_passive_create(enum nb_event event,
1655                                              const struct lyd_node *dnode,
1656                                              union nb_resource *resource)
1657 {
1658         /* TODO: implement me. */
1659         return NB_OK;
1660 }
1661
1662 static int lib_interface_isis_passive_delete(enum nb_event event,
1663                                              const struct lyd_node *dnode)
1664 {
1665         /* TODO: implement me. */
1666         return NB_OK;
1667 }
1668
1669 /*
1670  * XPath: /frr-interface:lib/interface/frr-isisd:isis/password
1671  */
1672 static int lib_interface_isis_password_create(enum nb_event event,
1673                                               const struct lyd_node *dnode,
1674                                               union nb_resource *resource)
1675 {
1676         /* TODO: implement me. */
1677         return NB_OK;
1678 }
1679
1680 static int lib_interface_isis_password_delete(enum nb_event event,
1681                                               const struct lyd_node *dnode)
1682 {
1683         /* TODO: implement me. */
1684         return NB_OK;
1685 }
1686
1687 /*
1688  * XPath: /frr-interface:lib/interface/frr-isisd:isis/password/password
1689  */
1690 static int
1691 lib_interface_isis_password_password_modify(enum nb_event event,
1692                                             const struct lyd_node *dnode,
1693                                             union nb_resource *resource)
1694 {
1695         /* TODO: implement me. */
1696         return NB_OK;
1697 }
1698
1699 /*
1700  * XPath: /frr-interface:lib/interface/frr-isisd:isis/password/password-type
1701  */
1702 static int
1703 lib_interface_isis_password_password_type_modify(enum nb_event event,
1704                                                  const struct lyd_node *dnode,
1705                                                  union nb_resource *resource)
1706 {
1707         /* TODO: implement me. */
1708         return NB_OK;
1709 }
1710
1711 /*
1712  * XPath:
1713  * /frr-interface:lib/interface/frr-isisd:isis/disable-three-way-handshake
1714  */
1715 static int lib_interface_isis_disable_three_way_handshake_create(
1716         enum nb_event event, const struct lyd_node *dnode,
1717         union nb_resource *resource)
1718 {
1719         /* TODO: implement me. */
1720         return NB_OK;
1721 }
1722
1723 static int lib_interface_isis_disable_three_way_handshake_delete(
1724         enum nb_event event, const struct lyd_node *dnode)
1725 {
1726         /* TODO: implement me. */
1727         return NB_OK;
1728 }
1729
1730 /*
1731  * XPath:
1732  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-unicast
1733  */
1734 static int lib_interface_isis_multi_topology_ipv4_unicast_modify(
1735         enum nb_event event, const struct lyd_node *dnode,
1736         union nb_resource *resource)
1737 {
1738         /* TODO: implement me. */
1739         return NB_OK;
1740 }
1741
1742 /*
1743  * XPath:
1744  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-multicast
1745  */
1746 static int lib_interface_isis_multi_topology_ipv4_multicast_modify(
1747         enum nb_event event, const struct lyd_node *dnode,
1748         union nb_resource *resource)
1749 {
1750         /* TODO: implement me. */
1751         return NB_OK;
1752 }
1753
1754 /*
1755  * XPath:
1756  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-management
1757  */
1758 static int lib_interface_isis_multi_topology_ipv4_management_modify(
1759         enum nb_event event, const struct lyd_node *dnode,
1760         union nb_resource *resource)
1761 {
1762         /* TODO: implement me. */
1763         return NB_OK;
1764 }
1765
1766 /*
1767  * XPath:
1768  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-unicast
1769  */
1770 static int lib_interface_isis_multi_topology_ipv6_unicast_modify(
1771         enum nb_event event, const struct lyd_node *dnode,
1772         union nb_resource *resource)
1773 {
1774         /* TODO: implement me. */
1775         return NB_OK;
1776 }
1777
1778 /*
1779  * XPath:
1780  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-multicast
1781  */
1782 static int lib_interface_isis_multi_topology_ipv6_multicast_modify(
1783         enum nb_event event, const struct lyd_node *dnode,
1784         union nb_resource *resource)
1785 {
1786         /* TODO: implement me. */
1787         return NB_OK;
1788 }
1789
1790 /*
1791  * XPath:
1792  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-management
1793  */
1794 static int lib_interface_isis_multi_topology_ipv6_management_modify(
1795         enum nb_event event, const struct lyd_node *dnode,
1796         union nb_resource *resource)
1797 {
1798         /* TODO: implement me. */
1799         return NB_OK;
1800 }
1801
1802 /*
1803  * XPath: /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-dstsrc
1804  */
1805 static int lib_interface_isis_multi_topology_ipv6_dstsrc_modify(
1806         enum nb_event event, const struct lyd_node *dnode,
1807         union nb_resource *resource)
1808 {
1809         /* TODO: implement me. */
1810         return NB_OK;
1811 }
1812
1813 /* clang-format off */
1814 const struct frr_yang_module_info frr_isisd_info = {
1815         .name = "frr-isisd",
1816         .nodes = {
1817                 {
1818                         .xpath = "/frr-isisd:isis/instance",
1819                         .cbs.create = isis_instance_create,
1820                         .cbs.delete = isis_instance_delete,
1821                         .cbs.cli_show = cli_show_router_isis,
1822                         .priority = NB_DFLT_PRIORITY - 1,
1823                 },
1824                 {
1825                         .xpath = "/frr-isisd:isis/instance/is-type",
1826                         .cbs.modify = isis_instance_is_type_modify,
1827                         .cbs.cli_show = cli_show_isis_is_type,
1828                 },
1829                 {
1830                         .xpath = "/frr-isisd:isis/instance/area-address",
1831                         .cbs.create = isis_instance_area_address_create,
1832                         .cbs.delete = isis_instance_area_address_delete,
1833                         .cbs.cli_show = cli_show_isis_area_address,
1834                 },
1835                 {
1836                         .xpath = "/frr-isisd:isis/instance/dynamic-hostname",
1837                         .cbs.modify = isis_instance_dynamic_hostname_modify,
1838                         .cbs.cli_show = cli_show_isis_dynamic_hostname,
1839                 },
1840                 {
1841                         .xpath = "/frr-isisd:isis/instance/attached",
1842                         .cbs.create = isis_instance_attached_create,
1843                         .cbs.delete = isis_instance_attached_delete,
1844                         .cbs.cli_show = cli_show_isis_attached,
1845                 },
1846                 {
1847                         .xpath = "/frr-isisd:isis/instance/overload",
1848                         .cbs.create = isis_instance_overload_create,
1849                         .cbs.delete = isis_instance_overload_delete,
1850                         .cbs.cli_show = cli_show_isis_overload,
1851                 },
1852                 {
1853                         .xpath = "/frr-isisd:isis/instance/metric-style",
1854                         .cbs.modify = isis_instance_metric_style_modify,
1855                         .cbs.cli_show = cli_show_isis_metric_style,
1856                 },
1857                 {
1858                         .xpath = "/frr-isisd:isis/instance/purge-originator",
1859                         .cbs.create = isis_instance_purge_originator_create,
1860                         .cbs.delete = isis_instance_purge_originator_delete,
1861                 },
1862                 {
1863                         .xpath = "/frr-isisd:isis/instance/lsp/mtu",
1864                         .cbs.modify = isis_instance_lsp_mtu_modify,
1865                 },
1866                 {
1867                         .xpath = "/frr-isisd:isis/instance/lsp/refresh-interval/level-1",
1868                         .cbs.modify = isis_instance_lsp_refresh_interval_level_1_modify,
1869                 },
1870                 {
1871                         .xpath = "/frr-isisd:isis/instance/lsp/refresh-interval/level-2",
1872                         .cbs.modify = isis_instance_lsp_refresh_interval_level_2_modify,
1873                 },
1874                 {
1875                         .xpath = "/frr-isisd:isis/instance/lsp/maximum-lifetime/level-1",
1876                         .cbs.modify = isis_instance_lsp_maximum_lifetime_level_1_modify,
1877                 },
1878                 {
1879                         .xpath = "/frr-isisd:isis/instance/lsp/maximum-lifetime/level-2",
1880                         .cbs.modify = isis_instance_lsp_maximum_lifetime_level_2_modify,
1881                 },
1882                 {
1883                         .xpath = "/frr-isisd:isis/instance/lsp/generation-interval",
1884                         .cbs.cli_show = cli_show_isis_lsp_gen_interval,
1885                 },
1886                 {
1887                         .xpath = "/frr-isisd:isis/instance/lsp/generation-interval/level-1",
1888                         .cbs.modify = isis_instance_lsp_generation_interval_level_1_modify,
1889                 },
1890                 {
1891                         .xpath = "/frr-isisd:isis/instance/lsp/generation-interval/level-2",
1892                         .cbs.modify = isis_instance_lsp_generation_interval_level_2_modify,
1893                 },
1894                 {
1895                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay",
1896                         .cbs.create = isis_instance_spf_ietf_backoff_delay_create,
1897                         .cbs.delete = isis_instance_spf_ietf_backoff_delay_delete,
1898                 },
1899                 {
1900                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/init-delay",
1901                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_init_delay_modify,
1902                 },
1903                 {
1904                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/short-delay",
1905                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_short_delay_modify,
1906                 },
1907                 {
1908                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/long-delay",
1909                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_long_delay_modify,
1910                 },
1911                 {
1912                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/hold-down",
1913                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_hold_down_modify,
1914                 },
1915                 {
1916                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/time-to-learn",
1917                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_time_to_learn_modify,
1918                 },
1919                 {
1920                         .xpath = "/frr-isisd:isis/instance/spf/minimum-interval/level-1",
1921                         .cbs.modify = isis_instance_spf_minimum_interval_level_1_modify,
1922                 },
1923                 {
1924                         .xpath = "/frr-isisd:isis/instance/spf/minimum-interval/level-2",
1925                         .cbs.modify = isis_instance_spf_minimum_interval_level_2_modify,
1926                 },
1927                 {
1928                         .xpath = "/frr-isisd:isis/instance/area-password",
1929                         .cbs.create = isis_instance_area_password_create,
1930                         .cbs.delete = isis_instance_area_password_delete,
1931                         .cbs.apply_finish = area_password_apply_finish,
1932                         .cbs.cli_show = cli_show_isis_area_pwd,
1933                 },
1934                 {
1935                         .xpath = "/frr-isisd:isis/instance/area-password/password",
1936                         .cbs.modify = isis_instance_area_password_password_modify,
1937                 },
1938                 {
1939                         .xpath = "/frr-isisd:isis/instance/area-password/password-type",
1940                         .cbs.modify = isis_instance_area_password_password_type_modify,
1941                 },
1942                 {
1943                         .xpath = "/frr-isisd:isis/instance/area-password/authenticate-snp",
1944                         .cbs.modify = isis_instance_area_password_authenticate_snp_modify,
1945                 },
1946                 {
1947                         .xpath = "/frr-isisd:isis/instance/domain-password",
1948                         .cbs.create = isis_instance_domain_password_create,
1949                         .cbs.delete = isis_instance_domain_password_delete,
1950                         .cbs.apply_finish = domain_password_apply_finish,
1951                         .cbs.cli_show = cli_show_isis_domain_pwd,
1952                 },
1953                 {
1954                         .xpath = "/frr-isisd:isis/instance/domain-password/password",
1955                         .cbs.modify = isis_instance_domain_password_password_modify,
1956                 },
1957                 {
1958                         .xpath = "/frr-isisd:isis/instance/domain-password/password-type",
1959                         .cbs.modify = isis_instance_domain_password_password_type_modify,
1960                 },
1961                 {
1962                         .xpath = "/frr-isisd:isis/instance/domain-password/authenticate-snp",
1963                         .cbs.modify = isis_instance_domain_password_authenticate_snp_modify,
1964                 },
1965                 {
1966                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv4",
1967                         .cbs.create = isis_instance_default_information_originate_ipv4_create,
1968                         .cbs.delete = isis_instance_default_information_originate_ipv4_delete,
1969                 },
1970                 {
1971                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv4/always",
1972                         .cbs.create = isis_instance_default_information_originate_ipv4_always_create,
1973                         .cbs.delete = isis_instance_default_information_originate_ipv4_always_delete,
1974                 },
1975                 {
1976                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv4/route-map",
1977                         .cbs.modify = isis_instance_default_information_originate_ipv4_route_map_modify,
1978                         .cbs.delete = isis_instance_default_information_originate_ipv4_route_map_delete,
1979                 },
1980                 {
1981                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv4/metric",
1982                         .cbs.modify = isis_instance_default_information_originate_ipv4_metric_modify,
1983                         .cbs.delete = isis_instance_default_information_originate_ipv4_metric_delete,
1984                 },
1985                 {
1986                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv6",
1987                         .cbs.create = isis_instance_default_information_originate_ipv6_create,
1988                         .cbs.delete = isis_instance_default_information_originate_ipv6_delete,
1989                 },
1990                 {
1991                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv6/always",
1992                         .cbs.create = isis_instance_default_information_originate_ipv6_always_create,
1993                         .cbs.delete = isis_instance_default_information_originate_ipv6_always_delete,
1994                 },
1995                 {
1996                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv6/route-map",
1997                         .cbs.modify = isis_instance_default_information_originate_ipv6_route_map_modify,
1998                         .cbs.delete = isis_instance_default_information_originate_ipv6_route_map_delete,
1999                 },
2000                 {
2001                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv6/metric",
2002                         .cbs.modify = isis_instance_default_information_originate_ipv6_metric_modify,
2003                         .cbs.delete = isis_instance_default_information_originate_ipv6_metric_delete,
2004                 },
2005                 {
2006                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv4",
2007                         .cbs.create = isis_instance_redistribute_ipv4_create,
2008                         .cbs.delete = isis_instance_redistribute_ipv4_delete,
2009                 },
2010                 {
2011                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv4/route-map",
2012                         .cbs.modify = isis_instance_redistribute_ipv4_route_map_modify,
2013                         .cbs.delete = isis_instance_redistribute_ipv4_route_map_delete,
2014                 },
2015                 {
2016                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv4/metric",
2017                         .cbs.modify = isis_instance_redistribute_ipv4_metric_modify,
2018                         .cbs.delete = isis_instance_redistribute_ipv4_metric_delete,
2019                 },
2020                 {
2021                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv6",
2022                         .cbs.create = isis_instance_redistribute_ipv6_create,
2023                         .cbs.delete = isis_instance_redistribute_ipv6_delete,
2024                 },
2025                 {
2026                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv6/route-map",
2027                         .cbs.modify = isis_instance_redistribute_ipv6_route_map_modify,
2028                         .cbs.delete = isis_instance_redistribute_ipv6_route_map_delete,
2029                 },
2030                 {
2031                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv6/metric",
2032                         .cbs.modify = isis_instance_redistribute_ipv6_metric_modify,
2033                         .cbs.delete = isis_instance_redistribute_ipv6_metric_delete,
2034                 },
2035                 {
2036                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv4-multicast",
2037                         .cbs.create = isis_instance_multi_topology_ipv4_multicast_create,
2038                         .cbs.delete = isis_instance_multi_topology_ipv4_multicast_delete,
2039                 },
2040                 {
2041                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv4-multicast/overload",
2042                         .cbs.create = isis_instance_multi_topology_ipv4_multicast_overload_create,
2043                         .cbs.delete = isis_instance_multi_topology_ipv4_multicast_overload_delete,
2044                 },
2045                 {
2046                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv4-management",
2047                         .cbs.create = isis_instance_multi_topology_ipv4_management_create,
2048                         .cbs.delete = isis_instance_multi_topology_ipv4_management_delete,
2049                 },
2050                 {
2051                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv4-management/overload",
2052                         .cbs.create = isis_instance_multi_topology_ipv4_management_overload_create,
2053                         .cbs.delete = isis_instance_multi_topology_ipv4_management_overload_delete,
2054                 },
2055                 {
2056                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-unicast",
2057                         .cbs.create = isis_instance_multi_topology_ipv6_unicast_create,
2058                         .cbs.delete = isis_instance_multi_topology_ipv6_unicast_delete,
2059                 },
2060                 {
2061                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-unicast/overload",
2062                         .cbs.create = isis_instance_multi_topology_ipv6_unicast_overload_create,
2063                         .cbs.delete = isis_instance_multi_topology_ipv6_unicast_overload_delete,
2064                 },
2065                 {
2066                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-multicast",
2067                         .cbs.create = isis_instance_multi_topology_ipv6_multicast_create,
2068                         .cbs.delete = isis_instance_multi_topology_ipv6_multicast_delete,
2069                 },
2070                 {
2071                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-multicast/overload",
2072                         .cbs.create = isis_instance_multi_topology_ipv6_multicast_overload_create,
2073                         .cbs.delete = isis_instance_multi_topology_ipv6_multicast_overload_delete,
2074                 },
2075                 {
2076                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-management",
2077                         .cbs.create = isis_instance_multi_topology_ipv6_management_create,
2078                         .cbs.delete = isis_instance_multi_topology_ipv6_management_delete,
2079                 },
2080                 {
2081                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-management/overload",
2082                         .cbs.create = isis_instance_multi_topology_ipv6_management_overload_create,
2083                         .cbs.delete = isis_instance_multi_topology_ipv6_management_overload_delete,
2084                 },
2085                 {
2086                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-dstsrc",
2087                         .cbs.create = isis_instance_multi_topology_ipv6_dstsrc_create,
2088                         .cbs.delete = isis_instance_multi_topology_ipv6_dstsrc_delete,
2089                 },
2090                 {
2091                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-dstsrc/overload",
2092                         .cbs.create = isis_instance_multi_topology_ipv6_dstsrc_overload_create,
2093                         .cbs.delete = isis_instance_multi_topology_ipv6_dstsrc_overload_delete,
2094                 },
2095                 {
2096                         .xpath = "/frr-isisd:isis/instance/log-adjacency-changes",
2097                         .cbs.create = isis_instance_log_adjacency_changes_create,
2098                         .cbs.delete = isis_instance_log_adjacency_changes_delete,
2099                 },
2100                 {
2101                         .xpath = "/frr-isisd:isis/mpls-te",
2102                         .cbs.create = isis_mpls_te_create,
2103                         .cbs.delete = isis_mpls_te_delete,
2104                 },
2105                 {
2106                         .xpath = "/frr-isisd:isis/mpls-te/router-address",
2107                         .cbs.modify = isis_mpls_te_router_address_modify,
2108                         .cbs.delete = isis_mpls_te_router_address_delete,
2109                 },
2110                 {
2111                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis",
2112                         .cbs.create = lib_interface_isis_create,
2113                         .cbs.delete = lib_interface_isis_delete,
2114                 },
2115                 {
2116                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/area-tag",
2117                         .cbs.modify = lib_interface_isis_area_tag_modify,
2118                 },
2119                 {
2120                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/circuit-type",
2121                         .cbs.modify = lib_interface_isis_circuit_type_modify,
2122                 },
2123                 {
2124                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/ipv4-routing",
2125                         .cbs.create = lib_interface_isis_ipv4_routing_create,
2126                         .cbs.delete = lib_interface_isis_ipv4_routing_delete,
2127                         .cbs.cli_show = cli_show_ip_isis_ipv4,
2128                 },
2129                 {
2130                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/ipv6-routing",
2131                         .cbs.create = lib_interface_isis_ipv6_routing_create,
2132                         .cbs.delete = lib_interface_isis_ipv6_routing_delete,
2133                         .cbs.cli_show = cli_show_ip_isis_ipv6,
2134                 },
2135                 {
2136                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-1",
2137                         .cbs.modify = lib_interface_isis_csnp_interval_level_1_modify,
2138                 },
2139                 {
2140                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-2",
2141                         .cbs.modify = lib_interface_isis_csnp_interval_level_2_modify,
2142                 },
2143                 {
2144                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-1",
2145                         .cbs.modify = lib_interface_isis_psnp_interval_level_1_modify,
2146                 },
2147                 {
2148                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-2",
2149                         .cbs.modify = lib_interface_isis_psnp_interval_level_2_modify,
2150                 },
2151                 {
2152                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/padding",
2153                         .cbs.modify = lib_interface_isis_hello_padding_modify,
2154                 },
2155                 {
2156                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-1",
2157                         .cbs.modify = lib_interface_isis_hello_interval_level_1_modify,
2158                 },
2159                 {
2160                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-2",
2161                         .cbs.modify = lib_interface_isis_hello_interval_level_2_modify,
2162                 },
2163                 {
2164                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-1",
2165                         .cbs.modify = lib_interface_isis_hello_multiplier_level_1_modify,
2166                 },
2167                 {
2168                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-2",
2169                         .cbs.modify = lib_interface_isis_hello_multiplier_level_2_modify,
2170                 },
2171                 {
2172                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/metric/level-1",
2173                         .cbs.modify = lib_interface_isis_metric_level_1_modify,
2174                 },
2175                 {
2176                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/metric/level-2",
2177                         .cbs.modify = lib_interface_isis_metric_level_2_modify,
2178                 },
2179                 {
2180                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/priority/level-1",
2181                         .cbs.modify = lib_interface_isis_priority_level_1_modify,
2182                 },
2183                 {
2184                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/priority/level-2",
2185                         .cbs.modify = lib_interface_isis_priority_level_2_modify,
2186                 },
2187                 {
2188                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/network-type",
2189                         .cbs.modify = lib_interface_isis_network_type_modify,
2190                         .cbs.delete = lib_interface_isis_network_type_delete,
2191                 },
2192                 {
2193                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/passive",
2194                         .cbs.create = lib_interface_isis_passive_create,
2195                         .cbs.delete = lib_interface_isis_passive_delete,
2196                 },
2197                 {
2198                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/password",
2199                         .cbs.create = lib_interface_isis_password_create,
2200                         .cbs.delete = lib_interface_isis_password_delete,
2201                 },
2202                 {
2203                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/password/password",
2204                         .cbs.modify = lib_interface_isis_password_password_modify,
2205                 },
2206                 {
2207                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/password/password-type",
2208                         .cbs.modify = lib_interface_isis_password_password_type_modify,
2209                 },
2210                 {
2211                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/disable-three-way-handshake",
2212                         .cbs.create = lib_interface_isis_disable_three_way_handshake_create,
2213                         .cbs.delete = lib_interface_isis_disable_three_way_handshake_delete,
2214                 },
2215                 {
2216                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-unicast",
2217                         .cbs.modify = lib_interface_isis_multi_topology_ipv4_unicast_modify,
2218                 },
2219                 {
2220                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-multicast",
2221                         .cbs.modify = lib_interface_isis_multi_topology_ipv4_multicast_modify,
2222                 },
2223                 {
2224                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-management",
2225                         .cbs.modify = lib_interface_isis_multi_topology_ipv4_management_modify,
2226                 },
2227                 {
2228                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-unicast",
2229                         .cbs.modify = lib_interface_isis_multi_topology_ipv6_unicast_modify,
2230                 },
2231                 {
2232                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-multicast",
2233                         .cbs.modify = lib_interface_isis_multi_topology_ipv6_multicast_modify,
2234                 },
2235                 {
2236                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-management",
2237                         .cbs.modify = lib_interface_isis_multi_topology_ipv6_management_modify,
2238                 },
2239                 {
2240                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-dstsrc",
2241                         .cbs.modify = lib_interface_isis_multi_topology_ipv6_dstsrc_modify,
2242                 },
2243                 {
2244                         .xpath = NULL,
2245                 },
2246         }
2247 };