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         /* TODO: implement me. */
 424         return NB_OK;
 425 }
 426
 427 /*
 428  * XPath: /frr-isisd:isis/instance/lsp/generation-interval/level-2
 429  */
 430 static int isis_instance_lsp_generation_interval_level_2_modify(
 431         enum nb_event event, const struct lyd_node *dnode,
 432         union nb_resource *resource)
 433 {
 434         /* TODO: implement me. */
 435         return NB_OK;
 436 }
 437
 438 /*
 439  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay
 440  */
 441 static int
 442 isis_instance_spf_ietf_backoff_delay_create(enum nb_event event,
 443                                             const struct lyd_node *dnode,
 444                                             union nb_resource *resource)
 445 {
 446         /* TODO: implement me. */
 447         return NB_OK;
 448 }
 449
 450 static int
 451 isis_instance_spf_ietf_backoff_delay_delete(enum nb_event event,
 452                                             const struct lyd_node *dnode)
 453 {
 454         /* TODO: implement me. */
 455         return NB_OK;
 456 }
 457
 458 /*
 459  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/init-delay
 460  */
 461 static int isis_instance_spf_ietf_backoff_delay_init_delay_modify(
 462         enum nb_event event, const struct lyd_node *dnode,
 463         union nb_resource *resource)
 464 {
 465         /* TODO: implement me. */
 466         return NB_OK;
 467 }
 468
 469 /*
 470  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/short-delay
 471  */
 472 static int isis_instance_spf_ietf_backoff_delay_short_delay_modify(
 473         enum nb_event event, const struct lyd_node *dnode,
 474         union nb_resource *resource)
 475 {
 476         /* TODO: implement me. */
 477         return NB_OK;
 478 }
 479
 480 /*
 481  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/long-delay
 482  */
 483 static int isis_instance_spf_ietf_backoff_delay_long_delay_modify(
 484         enum nb_event event, const struct lyd_node *dnode,
 485         union nb_resource *resource)
 486 {
 487         /* TODO: implement me. */
 488         return NB_OK;
 489 }
 490
 491 /*
 492  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/hold-down
 493  */
 494 static int isis_instance_spf_ietf_backoff_delay_hold_down_modify(
 495         enum nb_event event, const struct lyd_node *dnode,
 496         union nb_resource *resource)
 497 {
 498         /* TODO: implement me. */
 499         return NB_OK;
 500 }
 501
 502 /*
 503  * XPath: /frr-isisd:isis/instance/spf/ietf-backoff-delay/time-to-learn
 504  */
 505 static int isis_instance_spf_ietf_backoff_delay_time_to_learn_modify(
 506         enum nb_event event, const struct lyd_node *dnode,
 507         union nb_resource *resource)
 508 {
 509         /* TODO: implement me. */
 510         return NB_OK;
 511 }
 512
 513 /*
 514  * XPath: /frr-isisd:isis/instance/spf/minimum-interval/level-1
 515  */
 516 static int
 517 isis_instance_spf_minimum_interval_level_1_modify(enum nb_event event,
 518                                                   const struct lyd_node *dnode,
 519                                                   union nb_resource *resource)
 520 {
 521         /* TODO: implement me. */
 522         return NB_OK;
 523 }
 524
 525 /*
 526  * XPath: /frr-isisd:isis/instance/spf/minimum-interval/level-2
 527  */
 528 static int
 529 isis_instance_spf_minimum_interval_level_2_modify(enum nb_event event,
 530                                                   const struct lyd_node *dnode,
 531                                                   union nb_resource *resource)
 532 {
 533         /* TODO: implement me. */
 534         return NB_OK;
 535 }
 536
 537 /*
 538  * XPath: /frr-isisd:isis/instance/area-password
 539  */
 540 static void area_password_apply_finish(const struct lyd_node *dnode)
 541 {
 542         const char *password = yang_dnode_get_string(dnode, "./password");
 543         struct isis_area *area = yang_dnode_get_entry(dnode, true);
 544         int pass_type = yang_dnode_get_enum(dnode, "./password-type");
 545         uint8_t snp_auth = yang_dnode_get_enum(dnode, "./authenticate-snp");
 546
 547         switch (pass_type) {
 548         case ISIS_PASSWD_TYPE_CLEARTXT:
 549                 isis_area_passwd_cleartext_set(area, IS_LEVEL_1, password,
 550                                                snp_auth);
 551                 break;
 552         case ISIS_PASSWD_TYPE_HMAC_MD5:
 553                 isis_area_passwd_hmac_md5_set(area, IS_LEVEL_1, password,
 554                                               snp_auth);
 555                 break;
 556         }
 557 }
 558
 559 static int isis_instance_area_password_create(enum nb_event event,
 560                                               const struct lyd_node *dnode,
 561                                               union nb_resource *resource)
 562 {
 563         /* actual setting is done in apply_finish */
 564         return NB_OK;
 565 }
 566
 567 static int isis_instance_area_password_delete(enum nb_event event,
 568                                               const struct lyd_node *dnode)
 569 {
 570         struct isis_area *area;
 571
 572         if (event != NB_EV_APPLY)
 573                 return NB_OK;
 574
 575         area = yang_dnode_get_entry(dnode, true);
 576         isis_area_passwd_unset(area, IS_LEVEL_1);
 577
 578         return NB_OK;
 579 }
 580
 581 /*
 582  * XPath: /frr-isisd:isis/instance/area-password/password
 583  */
 584 static int
 585 isis_instance_area_password_password_modify(enum nb_event event,
 586                                             const struct lyd_node *dnode,
 587                                             union nb_resource *resource)
 588 {
 589         /* actual setting is done in apply_finish */
 590         return NB_OK;
 591 }
 592
 593 /*
 594  * XPath: /frr-isisd:isis/instance/area-password/password-type
 595  */
 596 static int
 597 isis_instance_area_password_password_type_modify(enum nb_event event,
 598                                                  const struct lyd_node *dnode,
 599                                                  union nb_resource *resource)
 600 {
 601         /* actual setting is done in apply_finish */
 602         return NB_OK;
 603 }
 604
 605 /*
 606  * XPath: /frr-isisd:isis/instance/area-password/authenticate-snp
 607  */
 608 static int isis_instance_area_password_authenticate_snp_modify(
 609         enum nb_event event, const struct lyd_node *dnode,
 610         union nb_resource *resource)
 611 {
 612         /* actual setting is done in apply_finish */
 613         return NB_OK;
 614 }
 615
 616 /*
 617  * XPath: /frr-isisd:isis/instance/domain-password
 618  */
 619 static void domain_password_apply_finish(const struct lyd_node *dnode)
 620 {
 621         const char *password = yang_dnode_get_string(dnode, "./password");
 622         struct isis_area *area = yang_dnode_get_entry(dnode, true);
 623         int pass_type = yang_dnode_get_enum(dnode, "./password-type");
 624         uint8_t snp_auth = yang_dnode_get_enum(dnode, "./authenticate-snp");
 625
 626         switch (pass_type) {
 627         case ISIS_PASSWD_TYPE_CLEARTXT:
 628                 isis_area_passwd_cleartext_set(area, IS_LEVEL_2, password,
 629                                                snp_auth);
 630                 break;
 631         case ISIS_PASSWD_TYPE_HMAC_MD5:
 632                 isis_area_passwd_hmac_md5_set(area, IS_LEVEL_2, password,
 633                                               snp_auth);
 634                 break;
 635         }
 636 }
 637
 638 static int isis_instance_domain_password_create(enum nb_event event,
 639                                                 const struct lyd_node *dnode,
 640                                                 union nb_resource *resource)
 641 {
 642         /* actual setting is done in apply_finish */
 643         return NB_OK;
 644 }
 645
 646 static int isis_instance_domain_password_delete(enum nb_event event,
 647                                                 const struct lyd_node *dnode)
 648 {
 649         struct isis_area *area;
 650
 651         if (event != NB_EV_APPLY)
 652                 return NB_OK;
 653
 654         area = yang_dnode_get_entry(dnode, true);
 655         isis_area_passwd_unset(area, IS_LEVEL_2);
 656
 657         return NB_OK;
 658 }
 659
 660 /*
 661  * XPath: /frr-isisd:isis/instance/domain-password/password
 662  */
 663 static int
 664 isis_instance_domain_password_password_modify(enum nb_event event,
 665                                               const struct lyd_node *dnode,
 666                                               union nb_resource *resource)
 667 {
 668         /* actual setting is done in apply_finish */
 669         return NB_OK;
 670 }
 671
 672 /*
 673  * XPath: /frr-isisd:isis/instance/domain-password/password-type
 674  */
 675 static int
 676 isis_instance_domain_password_password_type_modify(enum nb_event event,
 677                                                    const struct lyd_node *dnode,
 678                                                    union nb_resource *resource)
 679 {
 680         /* actual setting is done in apply_finish */
 681         return NB_OK;
 682 }
 683
 684 /*
 685  * XPath: /frr-isisd:isis/instance/domain-password/authenticate-snp
 686  */
 687 static int isis_instance_domain_password_authenticate_snp_modify(
 688         enum nb_event event, const struct lyd_node *dnode,
 689         union nb_resource *resource)
 690 {
 691         /* actual setting is done in apply_finish */
 692         return NB_OK;
 693 }
 694
 695 /*
 696  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv4
 697  */
 698 static int isis_instance_default_information_originate_ipv4_create(
 699         enum nb_event event, const struct lyd_node *dnode,
 700         union nb_resource *resource)
 701 {
 702         /* TODO: implement me. */
 703         return NB_OK;
 704 }
 705
 706 static int isis_instance_default_information_originate_ipv4_delete(
 707         enum nb_event event, const struct lyd_node *dnode)
 708 {
 709         /* TODO: implement me. */
 710         return NB_OK;
 711 }
 712
 713 /*
 714  * XPath: /frr-isisd:isis/instance/default-information-originate/ipv4/always
 715  */
 716 static int isis_instance_default_information_originate_ipv4_always_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_always_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/route-map
 733  */
 734 static int isis_instance_default_information_originate_ipv4_route_map_modify(
 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_route_map_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/metric
 751  */
 752 static int isis_instance_default_information_originate_ipv4_metric_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_metric_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/ipv6
 769  */
 770 static int isis_instance_default_information_originate_ipv6_create(
 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_ipv6_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/always
 787  */
 788 static int isis_instance_default_information_originate_ipv6_always_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_always_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/route-map
 805  */
 806 static int isis_instance_default_information_originate_ipv6_route_map_modify(
 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_route_map_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/metric
 823  */
 824 static int isis_instance_default_information_originate_ipv6_metric_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_metric_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/redistribute/ipv4
 841  */
 842 static int isis_instance_redistribute_ipv4_create(enum nb_event event,
 843                                                   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_redistribute_ipv4_delete(enum nb_event event,
 851                                                   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/route-map
 859  */
 860 static int
 861 isis_instance_redistribute_ipv4_route_map_modify(enum nb_event event,
 862                                                  const struct lyd_node *dnode,
 863                                                  union nb_resource *resource)
 864 {
 865         /* TODO: implement me. */
 866         return NB_OK;
 867 }
 868
 869 static int
 870 isis_instance_redistribute_ipv4_route_map_delete(enum nb_event event,
 871                                                  const struct lyd_node *dnode)
 872 {
 873         /* TODO: implement me. */
 874         return NB_OK;
 875 }
 876
 877 /*
 878  * XPath: /frr-isisd:isis/instance/redistribute/ipv4/metric
 879  */
 880 static int
 881 isis_instance_redistribute_ipv4_metric_modify(enum nb_event event,
 882                                               const struct lyd_node *dnode,
 883                                               union nb_resource *resource)
 884 {
 885         /* TODO: implement me. */
 886         return NB_OK;
 887 }
 888
 889 static int
 890 isis_instance_redistribute_ipv4_metric_delete(enum nb_event event,
 891                                               const struct lyd_node *dnode)
 892 {
 893         /* TODO: implement me. */
 894         return NB_OK;
 895 }
 896
 897 /*
 898  * XPath: /frr-isisd:isis/instance/redistribute/ipv6
 899  */
 900 static int isis_instance_redistribute_ipv6_create(enum nb_event event,
 901                                                   const struct lyd_node *dnode,
 902                                                   union nb_resource *resource)
 903 {
 904         /* TODO: implement me. */
 905         return NB_OK;
 906 }
 907
 908 static int isis_instance_redistribute_ipv6_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/route-map
 917  */
 918 static int
 919 isis_instance_redistribute_ipv6_route_map_modify(enum nb_event event,
 920                                                  const struct lyd_node *dnode,
 921                                                  union nb_resource *resource)
 922 {
 923         /* TODO: implement me. */
 924         return NB_OK;
 925 }
 926
 927 static int
 928 isis_instance_redistribute_ipv6_route_map_delete(enum nb_event event,
 929                                                  const struct lyd_node *dnode)
 930 {
 931         /* TODO: implement me. */
 932         return NB_OK;
 933 }
 934
 935 /*
 936  * XPath: /frr-isisd:isis/instance/redistribute/ipv6/metric
 937  */
 938 static int
 939 isis_instance_redistribute_ipv6_metric_modify(enum nb_event event,
 940                                               const struct lyd_node *dnode,
 941                                               union nb_resource *resource)
 942 {
 943         /* TODO: implement me. */
 944         return NB_OK;
 945 }
 946
 947 static int
 948 isis_instance_redistribute_ipv6_metric_delete(enum nb_event event,
 949                                               const struct lyd_node *dnode)
 950 {
 951         /* TODO: implement me. */
 952         return NB_OK;
 953 }
 954
 955 /*
 956  * XPath: /frr-isisd:isis/instance/multi-topology/ipv4-multicast
 957  */
 958 static int
 959 isis_instance_multi_topology_ipv4_multicast_create(enum nb_event event,
 960                                                    const struct lyd_node *dnode,
 961                                                    union nb_resource *resource)
 962 {
 963         /* TODO: implement me. */
 964         return NB_OK;
 965 }
 966
 967 static int
 968 isis_instance_multi_topology_ipv4_multicast_delete(enum nb_event event,
 969                                                    const struct lyd_node *dnode)
 970 {
 971         /* TODO: implement me. */
 972         return NB_OK;
 973 }
 974
 975 /*
 976  * XPath: /frr-isisd:isis/instance/multi-topology/ipv4-multicast/overload
 977  */
 978 static int isis_instance_multi_topology_ipv4_multicast_overload_create(
 979         enum nb_event event, const struct lyd_node *dnode,
 980         union nb_resource *resource)
 981 {
 982         /* TODO: implement me. */
 983         return NB_OK;
 984 }
 985
 986 static int isis_instance_multi_topology_ipv4_multicast_overload_delete(
 987         enum nb_event event, 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-management
 995  */
 996 static int isis_instance_multi_topology_ipv4_management_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_management_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/overload
1013  */
1014 static int isis_instance_multi_topology_ipv4_management_overload_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_overload_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/ipv6-unicast
1031  */
1032 static int
1033 isis_instance_multi_topology_ipv6_unicast_create(enum nb_event event,
1034                                                  const struct lyd_node *dnode,
1035                                                  union nb_resource *resource)
1036 {
1037         /* TODO: implement me. */
1038         return NB_OK;
1039 }
1040
1041 static int
1042 isis_instance_multi_topology_ipv6_unicast_delete(enum nb_event event,
1043                                                  const struct lyd_node *dnode)
1044 {
1045         /* TODO: implement me. */
1046         return NB_OK;
1047 }
1048
1049 /*
1050  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-unicast/overload
1051  */
1052 static int isis_instance_multi_topology_ipv6_unicast_overload_create(
1053         enum nb_event event, const struct lyd_node *dnode,
1054         union nb_resource *resource)
1055 {
1056         /* TODO: implement me. */
1057         return NB_OK;
1058 }
1059
1060 static int isis_instance_multi_topology_ipv6_unicast_overload_delete(
1061         enum nb_event event, 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-multicast
1069  */
1070 static int
1071 isis_instance_multi_topology_ipv6_multicast_create(enum nb_event event,
1072                                                    const struct lyd_node *dnode,
1073                                                    union nb_resource *resource)
1074 {
1075         /* TODO: implement me. */
1076         return NB_OK;
1077 }
1078
1079 static int
1080 isis_instance_multi_topology_ipv6_multicast_delete(enum nb_event event,
1081                                                    const struct lyd_node *dnode)
1082 {
1083         /* TODO: implement me. */
1084         return NB_OK;
1085 }
1086
1087 /*
1088  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-multicast/overload
1089  */
1090 static int isis_instance_multi_topology_ipv6_multicast_overload_create(
1091         enum nb_event event, const struct lyd_node *dnode,
1092         union nb_resource *resource)
1093 {
1094         /* TODO: implement me. */
1095         return NB_OK;
1096 }
1097
1098 static int isis_instance_multi_topology_ipv6_multicast_overload_delete(
1099         enum nb_event event, 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-management
1107  */
1108 static int isis_instance_multi_topology_ipv6_management_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_management_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/overload
1125  */
1126 static int isis_instance_multi_topology_ipv6_management_overload_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_overload_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-dstsrc
1143  */
1144 static int
1145 isis_instance_multi_topology_ipv6_dstsrc_create(enum nb_event event,
1146                                                 const struct lyd_node *dnode,
1147                                                 union nb_resource *resource)
1148 {
1149         /* TODO: implement me. */
1150         return NB_OK;
1151 }
1152
1153 static int
1154 isis_instance_multi_topology_ipv6_dstsrc_delete(enum nb_event event,
1155                                                 const struct lyd_node *dnode)
1156 {
1157         /* TODO: implement me. */
1158         return NB_OK;
1159 }
1160
1161 /*
1162  * XPath: /frr-isisd:isis/instance/multi-topology/ipv6-dstsrc/overload
1163  */
1164 static int isis_instance_multi_topology_ipv6_dstsrc_overload_create(
1165         enum nb_event event, const struct lyd_node *dnode,
1166         union nb_resource *resource)
1167 {
1168         /* TODO: implement me. */
1169         return NB_OK;
1170 }
1171
1172 static int isis_instance_multi_topology_ipv6_dstsrc_overload_delete(
1173         enum nb_event event, const struct lyd_node *dnode)
1174 {
1175         /* TODO: implement me. */
1176         return NB_OK;
1177 }
1178
1179 /*
1180  * XPath: /frr-isisd:isis/instance/log-adjacency-changes
1181  */
1182 static int
1183 isis_instance_log_adjacency_changes_create(enum nb_event event,
1184                                            const struct lyd_node *dnode,
1185                                            union nb_resource *resource)
1186 {
1187         /* TODO: implement me. */
1188         return NB_OK;
1189 }
1190
1191 static int
1192 isis_instance_log_adjacency_changes_delete(enum nb_event event,
1193                                            const struct lyd_node *dnode)
1194 {
1195         /* TODO: implement me. */
1196         return NB_OK;
1197 }
1198
1199 /*
1200  * XPath: /frr-isisd:isis/mpls-te
1201  */
1202 static int isis_mpls_te_create(enum nb_event event,
1203                                const struct lyd_node *dnode,
1204                                union nb_resource *resource)
1205 {
1206         /* TODO: implement me. */
1207         return NB_OK;
1208 }
1209
1210 static int isis_mpls_te_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/router-address
1219  */
1220 static int isis_mpls_te_router_address_modify(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_router_address_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-interface:lib/interface/frr-isisd:isis
1237  */
1238 static int lib_interface_isis_create(enum nb_event event,
1239                                      const struct lyd_node *dnode,
1240                                      union nb_resource *resource)
1241 {
1242         struct isis_area *area;
1243         struct interface *ifp;
1244         struct isis_circuit *circuit;
1245         const char *area_tag = yang_dnode_get_string(dnode, "./area-tag");
1246
1247         if (event != NB_EV_APPLY)
1248                 return NB_OK;
1249
1250         area = isis_area_lookup(area_tag);
1251         /* The area should have already be created. We are
1252          * setting the priority of the global isis area creation
1253          * slightly lower, so it should be executed first, but I
1254          * cannot rely on that so here I have to check.
1255          */
1256         if (!area) {
1257                 flog_err(
1258                         EC_LIB_NB_CB_CONFIG_APPLY,
1259                         "%s: attempt to create circuit for area %s before the area has been created",
1260                         __func__, area_tag);
1261                 abort();
1262         }
1263
1264         ifp = yang_dnode_get_entry(dnode, true);
1265         circuit = isis_circuit_create(area, ifp);
1266         assert(circuit->state == C_STATE_CONF || circuit->state == C_STATE_UP);
1267         yang_dnode_set_entry(dnode, circuit);
1268
1269         return NB_OK;
1270 }
1271
1272 static int lib_interface_isis_delete(enum nb_event event,
1273                                      const struct lyd_node *dnode)
1274 {
1275         struct isis_circuit *circuit;
1276
1277         if (event != NB_EV_APPLY)
1278                 return NB_OK;
1279
1280         circuit = yang_dnode_get_entry(dnode, true);
1281         if (!circuit)
1282                 return NB_ERR_INCONSISTENCY;
1283         /* delete circuit through csm changes */
1284         switch (circuit->state) {
1285         case C_STATE_UP:
1286                 isis_csm_state_change(IF_DOWN_FROM_Z, circuit,
1287                                       circuit->interface);
1288                 isis_csm_state_change(ISIS_DISABLE, circuit, circuit->area);
1289                 break;
1290         case C_STATE_CONF:
1291                 isis_csm_state_change(ISIS_DISABLE, circuit, circuit->area);
1292                 break;
1293         case C_STATE_INIT:
1294                 isis_csm_state_change(IF_DOWN_FROM_Z, circuit,
1295                                       circuit->interface);
1296                 break;
1297         }
1298
1299         return NB_OK;
1300 }
1301
1302 /*
1303  * XPath: /frr-interface:lib/interface/frr-isisd:isis/area-tag
1304  */
1305 static int lib_interface_isis_area_tag_modify(enum nb_event event,
1306                                               const struct lyd_node *dnode,
1307                                               union nb_resource *resource)
1308 {
1309         struct isis_circuit *circuit;
1310         struct interface *ifp;
1311         struct vrf *vrf;
1312         const char *area_tag, *ifname, *vrfname;
1313
1314         if (event == NB_EV_VALIDATE) {
1315                 /* libyang doesn't like relative paths across module boundaries
1316                  */
1317                 ifname = yang_dnode_get_string(dnode->parent->parent, "./name");
1318                 vrfname = yang_dnode_get_string(dnode->parent->parent, "./vrf");
1319                 vrf = vrf_lookup_by_name(vrfname);
1320                 assert(vrf);
1321                 ifp = if_lookup_by_name(ifname, vrf->vrf_id);
1322                 if (!ifp)
1323                         return NB_OK;
1324                 circuit = circuit_lookup_by_ifp(ifp, isis->init_circ_list);
1325                 area_tag = yang_dnode_get_string(dnode, NULL);
1326                 if (circuit && circuit->area && circuit->area->area_tag
1327                     && strcmp(circuit->area->area_tag, area_tag)) {
1328                         flog_warn(EC_LIB_NB_CB_CONFIG_VALIDATE,
1329                                   "ISIS circuit is already defined on %s",
1330                                   circuit->area->area_tag);
1331                         return NB_ERR_VALIDATION;
1332                 }
1333         }
1334
1335         return NB_OK;
1336 }
1337
1338 /*
1339  * XPath: /frr-interface:lib/interface/frr-isisd:isis/circuit-type
1340  */
1341 static int lib_interface_isis_circuit_type_modify(enum nb_event event,
1342                                                   const struct lyd_node *dnode,
1343                                                   union nb_resource *resource)
1344 {
1345         int circ_type = yang_dnode_get_enum(dnode, NULL);
1346         struct isis_circuit *circuit;
1347         struct interface *ifp;
1348         struct vrf *vrf;
1349         const char *ifname, *vrfname;
1350
1351         switch (event) {
1352         case NB_EV_VALIDATE:
1353                 /* libyang doesn't like relative paths across module boundaries
1354                  */
1355                 ifname = yang_dnode_get_string(dnode->parent->parent, "./name");
1356                 vrfname = yang_dnode_get_string(dnode->parent->parent, "./vrf");
1357                 vrf = vrf_lookup_by_name(vrfname);
1358                 assert(vrf);
1359                 ifp = if_lookup_by_name(ifname, vrf->vrf_id);
1360                 if (!ifp)
1361                         break;
1362                 circuit = circuit_lookup_by_ifp(ifp, isis->init_circ_list);
1363                 if (circuit && circuit->state == C_STATE_UP
1364                     && circuit->area->is_type != IS_LEVEL_1_AND_2
1365                     && circuit->area->is_type != circ_type) {
1366                         flog_warn(EC_LIB_NB_CB_CONFIG_VALIDATE,
1367                                   "Invalid circuit level for area %s",
1368                                   circuit->area->area_tag);
1369                         return NB_ERR_VALIDATION;
1370                 }
1371                 break;
1372         case NB_EV_PREPARE:
1373         case NB_EV_ABORT:
1374                 break;
1375         case NB_EV_APPLY:
1376                 circuit = yang_dnode_get_entry(dnode, true);
1377                 isis_circuit_is_type_set(circuit, circ_type);
1378                 break;
1379         }
1380
1381         return NB_OK;
1382 }
1383
1384 /*
1385  * XPath: /frr-interface:lib/interface/frr-isisd:isis/ipv4-routing
1386  */
1387 static int lib_interface_isis_ipv4_routing_create(enum nb_event event,
1388                                                   const struct lyd_node *dnode,
1389                                                   union nb_resource *resource)
1390 {
1391         bool ipv6;
1392         struct isis_circuit *circuit;
1393
1394         if (event != NB_EV_APPLY)
1395                 return NB_OK;
1396
1397         circuit = yang_dnode_get_entry(dnode, true);
1398         ipv6 = yang_dnode_exists(dnode, "../ipv6-routing");
1399         isis_circuit_af_set(circuit, true, ipv6);
1400
1401         return NB_OK;
1402 }
1403
1404 static int lib_interface_isis_ipv4_routing_delete(enum nb_event event,
1405                                                   const struct lyd_node *dnode)
1406 {
1407         bool ipv6;
1408         struct isis_circuit *circuit;
1409
1410         if (event != NB_EV_APPLY)
1411                 return NB_OK;
1412
1413         circuit = yang_dnode_get_entry(dnode, true);
1414         if (circuit && circuit->area) {
1415                 ipv6 = yang_dnode_exists(dnode, "../ipv6-routing");
1416                 isis_circuit_af_set(circuit, false, ipv6);
1417         }
1418
1419         return NB_OK;
1420 }
1421
1422 /*
1423  * XPath: /frr-interface:lib/interface/frr-isisd:isis/ipv6-routing
1424  */
1425 static int lib_interface_isis_ipv6_routing_create(enum nb_event event,
1426                                                   const struct lyd_node *dnode,
1427                                                   union nb_resource *resource)
1428 {
1429         bool ipv4;
1430         struct isis_circuit *circuit;
1431
1432         if (event != NB_EV_APPLY)
1433                 return NB_OK;
1434
1435         circuit = yang_dnode_get_entry(dnode, true);
1436         ipv4 = yang_dnode_exists(dnode, "../ipv6-routing");
1437         isis_circuit_af_set(circuit, ipv4, true);
1438
1439         return NB_OK;
1440 }
1441
1442 static int lib_interface_isis_ipv6_routing_delete(enum nb_event event,
1443                                                   const struct lyd_node *dnode)
1444 {
1445         bool ipv4;
1446         struct isis_circuit *circuit;
1447
1448         if (event != NB_EV_APPLY)
1449                 return NB_OK;
1450
1451         circuit = yang_dnode_get_entry(dnode, true);
1452         if (circuit->area) {
1453                 ipv4 = yang_dnode_exists(dnode, "../ipv4-routing");
1454                 isis_circuit_af_set(circuit, ipv4, false);
1455         }
1456
1457         return NB_OK;
1458 }
1459
1460 /*
1461  * XPath: /frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-1
1462  */
1463 static int
1464 lib_interface_isis_csnp_interval_level_1_modify(enum nb_event event,
1465                                                 const struct lyd_node *dnode,
1466                                                 union nb_resource *resource)
1467 {
1468         /* TODO: implement me. */
1469         return NB_OK;
1470 }
1471
1472 /*
1473  * XPath: /frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-2
1474  */
1475 static int
1476 lib_interface_isis_csnp_interval_level_2_modify(enum nb_event event,
1477                                                 const struct lyd_node *dnode,
1478                                                 union nb_resource *resource)
1479 {
1480         /* TODO: implement me. */
1481         return NB_OK;
1482 }
1483
1484 /*
1485  * XPath: /frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-1
1486  */
1487 static int
1488 lib_interface_isis_psnp_interval_level_1_modify(enum nb_event event,
1489                                                 const struct lyd_node *dnode,
1490                                                 union nb_resource *resource)
1491 {
1492         /* TODO: implement me. */
1493         return NB_OK;
1494 }
1495
1496 /*
1497  * XPath: /frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-2
1498  */
1499 static int
1500 lib_interface_isis_psnp_interval_level_2_modify(enum nb_event event,
1501                                                 const struct lyd_node *dnode,
1502                                                 union nb_resource *resource)
1503 {
1504         /* TODO: implement me. */
1505         return NB_OK;
1506 }
1507
1508 /*
1509  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/padding
1510  */
1511 static int lib_interface_isis_hello_padding_modify(enum nb_event event,
1512                                                    const struct lyd_node *dnode,
1513                                                    union nb_resource *resource)
1514 {
1515         /* TODO: implement me. */
1516         return NB_OK;
1517 }
1518
1519 /*
1520  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-1
1521  */
1522 static int
1523 lib_interface_isis_hello_interval_level_1_modify(enum nb_event event,
1524                                                  const struct lyd_node *dnode,
1525                                                  union nb_resource *resource)
1526 {
1527         /* TODO: implement me. */
1528         return NB_OK;
1529 }
1530
1531 /*
1532  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-2
1533  */
1534 static int
1535 lib_interface_isis_hello_interval_level_2_modify(enum nb_event event,
1536                                                  const struct lyd_node *dnode,
1537                                                  union nb_resource *resource)
1538 {
1539         /* TODO: implement me. */
1540         return NB_OK;
1541 }
1542
1543 /*
1544  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-1
1545  */
1546 static int
1547 lib_interface_isis_hello_multiplier_level_1_modify(enum nb_event event,
1548                                                    const struct lyd_node *dnode,
1549                                                    union nb_resource *resource)
1550 {
1551         /* TODO: implement me. */
1552         return NB_OK;
1553 }
1554
1555 /*
1556  * XPath: /frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-2
1557  */
1558 static int
1559 lib_interface_isis_hello_multiplier_level_2_modify(enum nb_event event,
1560                                                    const struct lyd_node *dnode,
1561                                                    union nb_resource *resource)
1562 {
1563         /* TODO: implement me. */
1564         return NB_OK;
1565 }
1566
1567 /*
1568  * XPath: /frr-interface:lib/interface/frr-isisd:isis/metric/level-1
1569  */
1570 static int
1571 lib_interface_isis_metric_level_1_modify(enum nb_event event,
1572                                          const struct lyd_node *dnode,
1573                                          union nb_resource *resource)
1574 {
1575         /* TODO: implement me. */
1576         return NB_OK;
1577 }
1578
1579 /*
1580  * XPath: /frr-interface:lib/interface/frr-isisd:isis/metric/level-2
1581  */
1582 static int
1583 lib_interface_isis_metric_level_2_modify(enum nb_event event,
1584                                          const struct lyd_node *dnode,
1585                                          union nb_resource *resource)
1586 {
1587         /* TODO: implement me. */
1588         return NB_OK;
1589 }
1590
1591 /*
1592  * XPath: /frr-interface:lib/interface/frr-isisd:isis/priority/level-1
1593  */
1594 static int
1595 lib_interface_isis_priority_level_1_modify(enum nb_event event,
1596                                            const struct lyd_node *dnode,
1597                                            union nb_resource *resource)
1598 {
1599         /* TODO: implement me. */
1600         return NB_OK;
1601 }
1602
1603 /*
1604  * XPath: /frr-interface:lib/interface/frr-isisd:isis/priority/level-2
1605  */
1606 static int
1607 lib_interface_isis_priority_level_2_modify(enum nb_event event,
1608                                            const struct lyd_node *dnode,
1609                                            union nb_resource *resource)
1610 {
1611         /* TODO: implement me. */
1612         return NB_OK;
1613 }
1614
1615 /*
1616  * XPath: /frr-interface:lib/interface/frr-isisd:isis/network-type
1617  */
1618 static int lib_interface_isis_network_type_modify(enum nb_event event,
1619                                                   const struct lyd_node *dnode,
1620                                                   union nb_resource *resource)
1621 {
1622         /* TODO: implement me. */
1623         return NB_OK;
1624 }
1625
1626 static int lib_interface_isis_network_type_delete(enum nb_event event,
1627                                                   const struct lyd_node *dnode)
1628 {
1629         /* TODO: implement me. */
1630         return NB_OK;
1631 }
1632
1633 /*
1634  * XPath: /frr-interface:lib/interface/frr-isisd:isis/passive
1635  */
1636 static int lib_interface_isis_passive_create(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_passive_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/password
1653  */
1654 static int lib_interface_isis_password_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_password_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/password
1671  */
1672 static int
1673 lib_interface_isis_password_password_modify(enum nb_event event,
1674                                             const struct lyd_node *dnode,
1675                                             union nb_resource *resource)
1676 {
1677         /* TODO: implement me. */
1678         return NB_OK;
1679 }
1680
1681 /*
1682  * XPath: /frr-interface:lib/interface/frr-isisd:isis/password/password-type
1683  */
1684 static int
1685 lib_interface_isis_password_password_type_modify(enum nb_event event,
1686                                                  const struct lyd_node *dnode,
1687                                                  union nb_resource *resource)
1688 {
1689         /* TODO: implement me. */
1690         return NB_OK;
1691 }
1692
1693 /*
1694  * XPath:
1695  * /frr-interface:lib/interface/frr-isisd:isis/disable-three-way-handshake
1696  */
1697 static int lib_interface_isis_disable_three_way_handshake_create(
1698         enum nb_event event, const struct lyd_node *dnode,
1699         union nb_resource *resource)
1700 {
1701         /* TODO: implement me. */
1702         return NB_OK;
1703 }
1704
1705 static int lib_interface_isis_disable_three_way_handshake_delete(
1706         enum nb_event event, const struct lyd_node *dnode)
1707 {
1708         /* TODO: implement me. */
1709         return NB_OK;
1710 }
1711
1712 /*
1713  * XPath:
1714  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-unicast
1715  */
1716 static int lib_interface_isis_multi_topology_ipv4_unicast_modify(
1717         enum nb_event event, const struct lyd_node *dnode,
1718         union nb_resource *resource)
1719 {
1720         /* TODO: implement me. */
1721         return NB_OK;
1722 }
1723
1724 /*
1725  * XPath:
1726  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-multicast
1727  */
1728 static int lib_interface_isis_multi_topology_ipv4_multicast_modify(
1729         enum nb_event event, const struct lyd_node *dnode,
1730         union nb_resource *resource)
1731 {
1732         /* TODO: implement me. */
1733         return NB_OK;
1734 }
1735
1736 /*
1737  * XPath:
1738  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-management
1739  */
1740 static int lib_interface_isis_multi_topology_ipv4_management_modify(
1741         enum nb_event event, const struct lyd_node *dnode,
1742         union nb_resource *resource)
1743 {
1744         /* TODO: implement me. */
1745         return NB_OK;
1746 }
1747
1748 /*
1749  * XPath:
1750  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-unicast
1751  */
1752 static int lib_interface_isis_multi_topology_ipv6_unicast_modify(
1753         enum nb_event event, const struct lyd_node *dnode,
1754         union nb_resource *resource)
1755 {
1756         /* TODO: implement me. */
1757         return NB_OK;
1758 }
1759
1760 /*
1761  * XPath:
1762  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-multicast
1763  */
1764 static int lib_interface_isis_multi_topology_ipv6_multicast_modify(
1765         enum nb_event event, const struct lyd_node *dnode,
1766         union nb_resource *resource)
1767 {
1768         /* TODO: implement me. */
1769         return NB_OK;
1770 }
1771
1772 /*
1773  * XPath:
1774  * /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-management
1775  */
1776 static int lib_interface_isis_multi_topology_ipv6_management_modify(
1777         enum nb_event event, const struct lyd_node *dnode,
1778         union nb_resource *resource)
1779 {
1780         /* TODO: implement me. */
1781         return NB_OK;
1782 }
1783
1784 /*
1785  * XPath: /frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-dstsrc
1786  */
1787 static int lib_interface_isis_multi_topology_ipv6_dstsrc_modify(
1788         enum nb_event event, const struct lyd_node *dnode,
1789         union nb_resource *resource)
1790 {
1791         /* TODO: implement me. */
1792         return NB_OK;
1793 }
1794
1795 /* clang-format off */
1796 const struct frr_yang_module_info frr_isisd_info = {
1797         .name = "frr-isisd",
1798         .nodes = {
1799                 {
1800                         .xpath = "/frr-isisd:isis/instance",
1801                         .cbs.create = isis_instance_create,
1802                         .cbs.delete = isis_instance_delete,
1803                         .cbs.cli_show = cli_show_router_isis,
1804                         .priority = NB_DFLT_PRIORITY - 1,
1805                 },
1806                 {
1807                         .xpath = "/frr-isisd:isis/instance/is-type",
1808                         .cbs.modify = isis_instance_is_type_modify,
1809                         .cbs.cli_show = cli_show_isis_is_type,
1810                 },
1811                 {
1812                         .xpath = "/frr-isisd:isis/instance/area-address",
1813                         .cbs.create = isis_instance_area_address_create,
1814                         .cbs.delete = isis_instance_area_address_delete,
1815                         .cbs.cli_show = cli_show_isis_area_address,
1816                 },
1817                 {
1818                         .xpath = "/frr-isisd:isis/instance/dynamic-hostname",
1819                         .cbs.modify = isis_instance_dynamic_hostname_modify,
1820                         .cbs.cli_show = cli_show_isis_dynamic_hostname,
1821                 },
1822                 {
1823                         .xpath = "/frr-isisd:isis/instance/attached",
1824                         .cbs.create = isis_instance_attached_create,
1825                         .cbs.delete = isis_instance_attached_delete,
1826                         .cbs.cli_show = cli_show_isis_attached,
1827                 },
1828                 {
1829                         .xpath = "/frr-isisd:isis/instance/overload",
1830                         .cbs.create = isis_instance_overload_create,
1831                         .cbs.delete = isis_instance_overload_delete,
1832                         .cbs.cli_show = cli_show_isis_overload,
1833                 },
1834                 {
1835                         .xpath = "/frr-isisd:isis/instance/metric-style",
1836                         .cbs.modify = isis_instance_metric_style_modify,
1837                         .cbs.cli_show = cli_show_isis_metric_style,
1838                 },
1839                 {
1840                         .xpath = "/frr-isisd:isis/instance/purge-originator",
1841                         .cbs.create = isis_instance_purge_originator_create,
1842                         .cbs.delete = isis_instance_purge_originator_delete,
1843                 },
1844                 {
1845                         .xpath = "/frr-isisd:isis/instance/lsp/mtu",
1846                         .cbs.modify = isis_instance_lsp_mtu_modify,
1847                 },
1848                 {
1849                         .xpath = "/frr-isisd:isis/instance/lsp/refresh-interval/level-1",
1850                         .cbs.modify = isis_instance_lsp_refresh_interval_level_1_modify,
1851                 },
1852                 {
1853                         .xpath = "/frr-isisd:isis/instance/lsp/refresh-interval/level-2",
1854                         .cbs.modify = isis_instance_lsp_refresh_interval_level_2_modify,
1855                 },
1856                 {
1857                         .xpath = "/frr-isisd:isis/instance/lsp/maximum-lifetime/level-1",
1858                         .cbs.modify = isis_instance_lsp_maximum_lifetime_level_1_modify,
1859                 },
1860                 {
1861                         .xpath = "/frr-isisd:isis/instance/lsp/maximum-lifetime/level-2",
1862                         .cbs.modify = isis_instance_lsp_maximum_lifetime_level_2_modify,
1863                 },
1864                 {
1865                         .xpath = "/frr-isisd:isis/instance/lsp/generation-interval/level-1",
1866                         .cbs.modify = isis_instance_lsp_generation_interval_level_1_modify,
1867                 },
1868                 {
1869                         .xpath = "/frr-isisd:isis/instance/lsp/generation-interval/level-2",
1870                         .cbs.modify = isis_instance_lsp_generation_interval_level_2_modify,
1871                 },
1872                 {
1873                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay",
1874                         .cbs.create = isis_instance_spf_ietf_backoff_delay_create,
1875                         .cbs.delete = isis_instance_spf_ietf_backoff_delay_delete,
1876                 },
1877                 {
1878                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/init-delay",
1879                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_init_delay_modify,
1880                 },
1881                 {
1882                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/short-delay",
1883                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_short_delay_modify,
1884                 },
1885                 {
1886                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/long-delay",
1887                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_long_delay_modify,
1888                 },
1889                 {
1890                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/hold-down",
1891                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_hold_down_modify,
1892                 },
1893                 {
1894                         .xpath = "/frr-isisd:isis/instance/spf/ietf-backoff-delay/time-to-learn",
1895                         .cbs.modify = isis_instance_spf_ietf_backoff_delay_time_to_learn_modify,
1896                 },
1897                 {
1898                         .xpath = "/frr-isisd:isis/instance/spf/minimum-interval/level-1",
1899                         .cbs.modify = isis_instance_spf_minimum_interval_level_1_modify,
1900                 },
1901                 {
1902                         .xpath = "/frr-isisd:isis/instance/spf/minimum-interval/level-2",
1903                         .cbs.modify = isis_instance_spf_minimum_interval_level_2_modify,
1904                 },
1905                 {
1906                         .xpath = "/frr-isisd:isis/instance/area-password",
1907                         .cbs.create = isis_instance_area_password_create,
1908                         .cbs.delete = isis_instance_area_password_delete,
1909                         .cbs.apply_finish = area_password_apply_finish,
1910                         .cbs.cli_show = cli_show_isis_area_pwd,
1911                 },
1912                 {
1913                         .xpath = "/frr-isisd:isis/instance/area-password/password",
1914                         .cbs.modify = isis_instance_area_password_password_modify,
1915                 },
1916                 {
1917                         .xpath = "/frr-isisd:isis/instance/area-password/password-type",
1918                         .cbs.modify = isis_instance_area_password_password_type_modify,
1919                 },
1920                 {
1921                         .xpath = "/frr-isisd:isis/instance/area-password/authenticate-snp",
1922                         .cbs.modify = isis_instance_area_password_authenticate_snp_modify,
1923                 },
1924                 {
1925                         .xpath = "/frr-isisd:isis/instance/domain-password",
1926                         .cbs.create = isis_instance_domain_password_create,
1927                         .cbs.delete = isis_instance_domain_password_delete,
1928                         .cbs.apply_finish = domain_password_apply_finish,
1929                         .cbs.cli_show = cli_show_isis_domain_pwd,
1930                 },
1931                 {
1932                         .xpath = "/frr-isisd:isis/instance/domain-password/password",
1933                         .cbs.modify = isis_instance_domain_password_password_modify,
1934                 },
1935                 {
1936                         .xpath = "/frr-isisd:isis/instance/domain-password/password-type",
1937                         .cbs.modify = isis_instance_domain_password_password_type_modify,
1938                 },
1939                 {
1940                         .xpath = "/frr-isisd:isis/instance/domain-password/authenticate-snp",
1941                         .cbs.modify = isis_instance_domain_password_authenticate_snp_modify,
1942                 },
1943                 {
1944                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv4",
1945                         .cbs.create = isis_instance_default_information_originate_ipv4_create,
1946                         .cbs.delete = isis_instance_default_information_originate_ipv4_delete,
1947                 },
1948                 {
1949                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv4/always",
1950                         .cbs.create = isis_instance_default_information_originate_ipv4_always_create,
1951                         .cbs.delete = isis_instance_default_information_originate_ipv4_always_delete,
1952                 },
1953                 {
1954                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv4/route-map",
1955                         .cbs.modify = isis_instance_default_information_originate_ipv4_route_map_modify,
1956                         .cbs.delete = isis_instance_default_information_originate_ipv4_route_map_delete,
1957                 },
1958                 {
1959                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv4/metric",
1960                         .cbs.modify = isis_instance_default_information_originate_ipv4_metric_modify,
1961                         .cbs.delete = isis_instance_default_information_originate_ipv4_metric_delete,
1962                 },
1963                 {
1964                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv6",
1965                         .cbs.create = isis_instance_default_information_originate_ipv6_create,
1966                         .cbs.delete = isis_instance_default_information_originate_ipv6_delete,
1967                 },
1968                 {
1969                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv6/always",
1970                         .cbs.create = isis_instance_default_information_originate_ipv6_always_create,
1971                         .cbs.delete = isis_instance_default_information_originate_ipv6_always_delete,
1972                 },
1973                 {
1974                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv6/route-map",
1975                         .cbs.modify = isis_instance_default_information_originate_ipv6_route_map_modify,
1976                         .cbs.delete = isis_instance_default_information_originate_ipv6_route_map_delete,
1977                 },
1978                 {
1979                         .xpath = "/frr-isisd:isis/instance/default-information-originate/ipv6/metric",
1980                         .cbs.modify = isis_instance_default_information_originate_ipv6_metric_modify,
1981                         .cbs.delete = isis_instance_default_information_originate_ipv6_metric_delete,
1982                 },
1983                 {
1984                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv4",
1985                         .cbs.create = isis_instance_redistribute_ipv4_create,
1986                         .cbs.delete = isis_instance_redistribute_ipv4_delete,
1987                 },
1988                 {
1989                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv4/route-map",
1990                         .cbs.modify = isis_instance_redistribute_ipv4_route_map_modify,
1991                         .cbs.delete = isis_instance_redistribute_ipv4_route_map_delete,
1992                 },
1993                 {
1994                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv4/metric",
1995                         .cbs.modify = isis_instance_redistribute_ipv4_metric_modify,
1996                         .cbs.delete = isis_instance_redistribute_ipv4_metric_delete,
1997                 },
1998                 {
1999                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv6",
2000                         .cbs.create = isis_instance_redistribute_ipv6_create,
2001                         .cbs.delete = isis_instance_redistribute_ipv6_delete,
2002                 },
2003                 {
2004                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv6/route-map",
2005                         .cbs.modify = isis_instance_redistribute_ipv6_route_map_modify,
2006                         .cbs.delete = isis_instance_redistribute_ipv6_route_map_delete,
2007                 },
2008                 {
2009                         .xpath = "/frr-isisd:isis/instance/redistribute/ipv6/metric",
2010                         .cbs.modify = isis_instance_redistribute_ipv6_metric_modify,
2011                         .cbs.delete = isis_instance_redistribute_ipv6_metric_delete,
2012                 },
2013                 {
2014                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv4-multicast",
2015                         .cbs.create = isis_instance_multi_topology_ipv4_multicast_create,
2016                         .cbs.delete = isis_instance_multi_topology_ipv4_multicast_delete,
2017                 },
2018                 {
2019                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv4-multicast/overload",
2020                         .cbs.create = isis_instance_multi_topology_ipv4_multicast_overload_create,
2021                         .cbs.delete = isis_instance_multi_topology_ipv4_multicast_overload_delete,
2022                 },
2023                 {
2024                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv4-management",
2025                         .cbs.create = isis_instance_multi_topology_ipv4_management_create,
2026                         .cbs.delete = isis_instance_multi_topology_ipv4_management_delete,
2027                 },
2028                 {
2029                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv4-management/overload",
2030                         .cbs.create = isis_instance_multi_topology_ipv4_management_overload_create,
2031                         .cbs.delete = isis_instance_multi_topology_ipv4_management_overload_delete,
2032                 },
2033                 {
2034                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-unicast",
2035                         .cbs.create = isis_instance_multi_topology_ipv6_unicast_create,
2036                         .cbs.delete = isis_instance_multi_topology_ipv6_unicast_delete,
2037                 },
2038                 {
2039                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-unicast/overload",
2040                         .cbs.create = isis_instance_multi_topology_ipv6_unicast_overload_create,
2041                         .cbs.delete = isis_instance_multi_topology_ipv6_unicast_overload_delete,
2042                 },
2043                 {
2044                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-multicast",
2045                         .cbs.create = isis_instance_multi_topology_ipv6_multicast_create,
2046                         .cbs.delete = isis_instance_multi_topology_ipv6_multicast_delete,
2047                 },
2048                 {
2049                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-multicast/overload",
2050                         .cbs.create = isis_instance_multi_topology_ipv6_multicast_overload_create,
2051                         .cbs.delete = isis_instance_multi_topology_ipv6_multicast_overload_delete,
2052                 },
2053                 {
2054                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-management",
2055                         .cbs.create = isis_instance_multi_topology_ipv6_management_create,
2056                         .cbs.delete = isis_instance_multi_topology_ipv6_management_delete,
2057                 },
2058                 {
2059                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-management/overload",
2060                         .cbs.create = isis_instance_multi_topology_ipv6_management_overload_create,
2061                         .cbs.delete = isis_instance_multi_topology_ipv6_management_overload_delete,
2062                 },
2063                 {
2064                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-dstsrc",
2065                         .cbs.create = isis_instance_multi_topology_ipv6_dstsrc_create,
2066                         .cbs.delete = isis_instance_multi_topology_ipv6_dstsrc_delete,
2067                 },
2068                 {
2069                         .xpath = "/frr-isisd:isis/instance/multi-topology/ipv6-dstsrc/overload",
2070                         .cbs.create = isis_instance_multi_topology_ipv6_dstsrc_overload_create,
2071                         .cbs.delete = isis_instance_multi_topology_ipv6_dstsrc_overload_delete,
2072                 },
2073                 {
2074                         .xpath = "/frr-isisd:isis/instance/log-adjacency-changes",
2075                         .cbs.create = isis_instance_log_adjacency_changes_create,
2076                         .cbs.delete = isis_instance_log_adjacency_changes_delete,
2077                 },
2078                 {
2079                         .xpath = "/frr-isisd:isis/mpls-te",
2080                         .cbs.create = isis_mpls_te_create,
2081                         .cbs.delete = isis_mpls_te_delete,
2082                 },
2083                 {
2084                         .xpath = "/frr-isisd:isis/mpls-te/router-address",
2085                         .cbs.modify = isis_mpls_te_router_address_modify,
2086                         .cbs.delete = isis_mpls_te_router_address_delete,
2087                 },
2088                 {
2089                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis",
2090                         .cbs.create = lib_interface_isis_create,
2091                         .cbs.delete = lib_interface_isis_delete,
2092                 },
2093                 {
2094                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/area-tag",
2095                         .cbs.modify = lib_interface_isis_area_tag_modify,
2096                 },
2097                 {
2098                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/circuit-type",
2099                         .cbs.modify = lib_interface_isis_circuit_type_modify,
2100                 },
2101                 {
2102                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/ipv4-routing",
2103                         .cbs.create = lib_interface_isis_ipv4_routing_create,
2104                         .cbs.delete = lib_interface_isis_ipv4_routing_delete,
2105                         .cbs.cli_show = cli_show_ip_isis_ipv4,
2106                 },
2107                 {
2108                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/ipv6-routing",
2109                         .cbs.create = lib_interface_isis_ipv6_routing_create,
2110                         .cbs.delete = lib_interface_isis_ipv6_routing_delete,
2111                         .cbs.cli_show = cli_show_ip_isis_ipv6,
2112                 },
2113                 {
2114                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-1",
2115                         .cbs.modify = lib_interface_isis_csnp_interval_level_1_modify,
2116                 },
2117                 {
2118                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-2",
2119                         .cbs.modify = lib_interface_isis_csnp_interval_level_2_modify,
2120                 },
2121                 {
2122                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-1",
2123                         .cbs.modify = lib_interface_isis_psnp_interval_level_1_modify,
2124                 },
2125                 {
2126                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-2",
2127                         .cbs.modify = lib_interface_isis_psnp_interval_level_2_modify,
2128                 },
2129                 {
2130                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/padding",
2131                         .cbs.modify = lib_interface_isis_hello_padding_modify,
2132                 },
2133                 {
2134                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-1",
2135                         .cbs.modify = lib_interface_isis_hello_interval_level_1_modify,
2136                 },
2137                 {
2138                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-2",
2139                         .cbs.modify = lib_interface_isis_hello_interval_level_2_modify,
2140                 },
2141                 {
2142                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-1",
2143                         .cbs.modify = lib_interface_isis_hello_multiplier_level_1_modify,
2144                 },
2145                 {
2146                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-2",
2147                         .cbs.modify = lib_interface_isis_hello_multiplier_level_2_modify,
2148                 },
2149                 {
2150                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/metric/level-1",
2151                         .cbs.modify = lib_interface_isis_metric_level_1_modify,
2152                 },
2153                 {
2154                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/metric/level-2",
2155                         .cbs.modify = lib_interface_isis_metric_level_2_modify,
2156                 },
2157                 {
2158                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/priority/level-1",
2159                         .cbs.modify = lib_interface_isis_priority_level_1_modify,
2160                 },
2161                 {
2162                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/priority/level-2",
2163                         .cbs.modify = lib_interface_isis_priority_level_2_modify,
2164                 },
2165                 {
2166                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/network-type",
2167                         .cbs.modify = lib_interface_isis_network_type_modify,
2168                         .cbs.delete = lib_interface_isis_network_type_delete,
2169                 },
2170                 {
2171                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/passive",
2172                         .cbs.create = lib_interface_isis_passive_create,
2173                         .cbs.delete = lib_interface_isis_passive_delete,
2174                 },
2175                 {
2176                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/password",
2177                         .cbs.create = lib_interface_isis_password_create,
2178                         .cbs.delete = lib_interface_isis_password_delete,
2179                 },
2180                 {
2181                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/password/password",
2182                         .cbs.modify = lib_interface_isis_password_password_modify,
2183                 },
2184                 {
2185                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/password/password-type",
2186                         .cbs.modify = lib_interface_isis_password_password_type_modify,
2187                 },
2188                 {
2189                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/disable-three-way-handshake",
2190                         .cbs.create = lib_interface_isis_disable_three_way_handshake_create,
2191                         .cbs.delete = lib_interface_isis_disable_three_way_handshake_delete,
2192                 },
2193                 {
2194                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-unicast",
2195                         .cbs.modify = lib_interface_isis_multi_topology_ipv4_unicast_modify,
2196                 },
2197                 {
2198                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-multicast",
2199                         .cbs.modify = lib_interface_isis_multi_topology_ipv4_multicast_modify,
2200                 },
2201                 {
2202                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv4-management",
2203                         .cbs.modify = lib_interface_isis_multi_topology_ipv4_management_modify,
2204                 },
2205                 {
2206                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-unicast",
2207                         .cbs.modify = lib_interface_isis_multi_topology_ipv6_unicast_modify,
2208                 },
2209                 {
2210                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-multicast",
2211                         .cbs.modify = lib_interface_isis_multi_topology_ipv6_multicast_modify,
2212                 },
2213                 {
2214                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-management",
2215                         .cbs.modify = lib_interface_isis_multi_topology_ipv6_management_modify,
2216                 },
2217                 {
2218                         .xpath = "/frr-interface:lib/interface/frr-isisd:isis/multi-topology/ipv6-dstsrc",
2219                         .cbs.modify = lib_interface_isis_multi_topology_ipv6_dstsrc_modify,
2220                 },
2221                 {
2222                         .xpath = NULL,
2223                 },
2224         }
2225 };