// SPDX-License-Identifier: GPL-2.0-or-later /* * VRRP northbound bindings. * Copyright (C) 2019 Cumulus Networks, Inc. * Quentin Young */ #include #include "if.h" #include "log.h" #include "prefix.h" #include "table.h" #include "command.h" #include "northbound.h" #include "libfrr.h" #include "vrrp.h" #include "vrrp_vty.h" /* * XPath: /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group */ static int lib_interface_vrrp_vrrp_group_create(struct nb_cb_create_args *args) { struct interface *ifp; uint8_t vrid; uint8_t version = 3; struct vrrp_vrouter *vr; vrid = yang_dnode_get_uint8(args->dnode, "./virtual-router-id"); version = yang_dnode_get_enum(args->dnode, "./version"); switch (args->event) { case NB_EV_VALIDATE: ifp = nb_running_get_entry(args->dnode, NULL, false); if (ifp) { vr = vrrp_lookup(ifp, vrid); if (vr && vr->autoconf) { snprintf( args->errmsg, args->errmsg_len, "Virtual Router with ID %d already exists on interface '%s'; created by VRRP autoconfiguration", vrid, ifp->name); return NB_ERR_VALIDATION; } } return NB_OK; case NB_EV_PREPARE: case NB_EV_ABORT: return NB_OK; case NB_EV_APPLY: break; } ifp = nb_running_get_entry(args->dnode, NULL, true); vr = vrrp_vrouter_create(ifp, vrid, version); nb_running_set_entry(args->dnode, vr); return NB_OK; } static int lib_interface_vrrp_vrrp_group_destroy(struct nb_cb_destroy_args *args) { struct vrrp_vrouter *vr; if (args->event != NB_EV_APPLY) return NB_OK; vr = nb_running_unset_entry(args->dnode); vrrp_vrouter_destroy(vr); return NB_OK; } static const void * lib_interface_vrrp_vrrp_group_get_next(struct nb_cb_get_next_args *args) { struct list *l = hash_to_list(vrrp_vrouters_hash); struct listnode *ln; const struct vrrp_vrouter *curr; const struct interface *ifp = args->parent_list_entry; /* * If list_entry is null, we return the first vrrp instance with a * matching interface */ bool nextone = args->list_entry ? false : true; for (ALL_LIST_ELEMENTS_RO(l, ln, curr)) { if (curr == args->list_entry) { nextone = true; continue; } if (nextone && curr->ifp == ifp) goto done; } curr = NULL; done: list_delete(&l); return curr; } static int lib_interface_vrrp_vrrp_group_get_keys(struct nb_cb_get_keys_args *args) { const struct vrrp_vrouter *vr = args->list_entry; args->keys->num = 1; snprintf(args->keys->key[0], sizeof(args->keys->key[0]), "%u", vr->vrid); return NB_OK; } static const void * lib_interface_vrrp_vrrp_group_lookup_entry(struct nb_cb_lookup_entry_args *args) { uint32_t vrid = strtoul(args->keys->key[0], NULL, 10); const struct interface *ifp = args->parent_list_entry; return vrrp_lookup(ifp, vrid); } /* * XPath: /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/version */ static int lib_interface_vrrp_vrrp_group_version_modify(struct nb_cb_modify_args *args) { if (args->event != NB_EV_APPLY) return NB_OK; struct vrrp_vrouter *vr; uint8_t version; vr = nb_running_get_entry(args->dnode, NULL, true); vrrp_event(vr->v4, VRRP_EVENT_SHUTDOWN); vrrp_event(vr->v6, VRRP_EVENT_SHUTDOWN); version = yang_dnode_get_enum(args->dnode, NULL); vr->version = version; vrrp_check_start(vr); return NB_OK; } /* * Helper function for address list OP_MODIFY callbacks. */ static void vrrp_yang_add_del_virtual_address(const struct lyd_node *dnode, bool add) { struct vrrp_vrouter *vr; struct ipaddr ip; vr = nb_running_get_entry(dnode, NULL, true); yang_dnode_get_ip(&ip, dnode, NULL); if (add) vrrp_add_ip(vr, &ip); else vrrp_del_ip(vr, &ip); vrrp_check_start(vr); } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/virtual-address */ static int lib_interface_vrrp_vrrp_group_v4_virtual_address_create( struct nb_cb_create_args *args) { if (args->event != NB_EV_APPLY) return NB_OK; vrrp_yang_add_del_virtual_address(args->dnode, true); return NB_OK; } static int lib_interface_vrrp_vrrp_group_v4_virtual_address_destroy( struct nb_cb_destroy_args *args) { if (args->event != NB_EV_APPLY) return NB_OK; vrrp_yang_add_del_virtual_address(args->dnode, false); return NB_OK; } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/current-priority */ static struct yang_data * lib_interface_vrrp_vrrp_group_v4_current_priority_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_uint8(args->xpath, vr->v4->priority); } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/vrrp-interface */ static struct yang_data * lib_interface_vrrp_vrrp_group_v4_vrrp_interface_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; struct yang_data *val = NULL; if (vr->v4->mvl_ifp) val = yang_data_new_string(args->xpath, vr->v4->mvl_ifp->name); return val; } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/source-address */ static struct yang_data * lib_interface_vrrp_vrrp_group_v4_source_address_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; struct yang_data *val = NULL; if (!ipaddr_is_zero(&vr->v4->src)) val = yang_data_new_ip(args->xpath, &vr->v4->src); return val; } /* * XPath: /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/state */ static struct yang_data *lib_interface_vrrp_vrrp_group_v4_state_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_enum(args->xpath, vr->v4->fsm.state); } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/master-advertisement-interval */ static struct yang_data * lib_interface_vrrp_vrrp_group_v4_master_advertisement_interval_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_uint16(args->xpath, vr->v4->master_adver_interval); } /* * XPath: /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/skew-time */ static struct yang_data *lib_interface_vrrp_vrrp_group_v4_skew_time_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_uint16(args->xpath, vr->v4->skew_time); } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/counter/state-transition */ static struct yang_data * lib_interface_vrrp_vrrp_group_v4_counter_state_transition_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_uint32(args->xpath, vr->v4->stats.trans_cnt); } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/counter/tx/advertisement */ static struct yang_data * lib_interface_vrrp_vrrp_group_v4_counter_tx_advertisement_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_uint32(args->xpath, vr->v4->stats.adver_tx_cnt); } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/counter/tx/gratuitous-arp */ static struct yang_data * lib_interface_vrrp_vrrp_group_v4_counter_tx_gratuitous_arp_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_uint32(args->xpath, vr->v4->stats.garp_tx_cnt); } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/counter/rx/advertisement */ static struct yang_data * lib_interface_vrrp_vrrp_group_v4_counter_rx_advertisement_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_uint32(args->xpath, vr->v4->stats.adver_rx_cnt); } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/virtual-address */ static int lib_interface_vrrp_vrrp_group_v6_virtual_address_create( struct nb_cb_create_args *args) { if (args->event != NB_EV_APPLY) return NB_OK; vrrp_yang_add_del_virtual_address(args->dnode, true); return NB_OK; } static int lib_interface_vrrp_vrrp_group_v6_virtual_address_destroy( struct nb_cb_destroy_args *args) { if (args->event != NB_EV_APPLY) return NB_OK; vrrp_yang_add_del_virtual_address(args->dnode, false); return NB_OK; } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/current-priority */ static struct yang_data * lib_interface_vrrp_vrrp_group_v6_current_priority_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_uint8(args->xpath, vr->v6->priority); } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/vrrp-interface */ static struct yang_data * lib_interface_vrrp_vrrp_group_v6_vrrp_interface_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; struct yang_data *val = NULL; if (vr->v6->mvl_ifp) val = yang_data_new_string(args->xpath, vr->v6->mvl_ifp->name); return val; } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/source-address */ static struct yang_data * lib_interface_vrrp_vrrp_group_v6_source_address_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; struct yang_data *val = NULL; if (!ipaddr_is_zero(&vr->v6->src)) val = yang_data_new_ip(args->xpath, &vr->v6->src); return val; } /* * XPath: /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/state */ static struct yang_data *lib_interface_vrrp_vrrp_group_v6_state_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_enum(args->xpath, vr->v6->fsm.state); } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/master-advertisement-interval */ static struct yang_data * lib_interface_vrrp_vrrp_group_v6_master_advertisement_interval_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_uint16(args->xpath, vr->v6->master_adver_interval); } /* * XPath: /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/skew-time */ static struct yang_data *lib_interface_vrrp_vrrp_group_v6_skew_time_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_uint16(args->xpath, vr->v6->skew_time); } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/counter/state-transition */ static struct yang_data * lib_interface_vrrp_vrrp_group_v6_counter_state_transition_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_uint32(args->xpath, vr->v6->stats.trans_cnt); } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/counter/tx/advertisement */ static struct yang_data * lib_interface_vrrp_vrrp_group_v6_counter_tx_advertisement_get_elem( struct nb_cb_get_elem_args *args) { const struct vrrp_vrouter *vr = args->list_entry; return yang_data_new_uint32(args->xpath, vr->v6->stats.adver_tx_cnt); } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/counter/tx/neighbor-advertisement */ static struct yang_data * lib_interface_vrrp_vrrp_group_v6_counter_tx_neighbor_advertisement_get_elem( struct nb_cb_get_elem_args *args) { /* TODO: implement me. */ return NULL; } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/counter/rx/advertisement */ static struct yang_data * lib_interface_vrrp_vrrp_group_v6_counter_rx_advertisement_get_elem( struct nb_cb_get_elem_args *args) { /* TODO: implement me. */ return NULL; } /* * XPath: /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/priority */ static int lib_interface_vrrp_vrrp_group_priority_modify(struct nb_cb_modify_args *args) { if (args->event != NB_EV_APPLY) return NB_OK; struct vrrp_vrouter *vr; uint8_t priority; vr = nb_running_get_entry(args->dnode, NULL, true); priority = yang_dnode_get_uint8(args->dnode, NULL); vrrp_set_priority(vr, priority); return NB_OK; } /* * XPath: /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/preempt */ static int lib_interface_vrrp_vrrp_group_preempt_modify(struct nb_cb_modify_args *args) { if (args->event != NB_EV_APPLY) return NB_OK; struct vrrp_vrouter *vr; bool preempt; vr = nb_running_get_entry(args->dnode, NULL, true); preempt = yang_dnode_get_bool(args->dnode, NULL); vr->preempt_mode = preempt; return NB_OK; } /* * XPath: /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/accept-mode */ static int lib_interface_vrrp_vrrp_group_accept_mode_modify(struct nb_cb_modify_args *args) { if (args->event != NB_EV_APPLY) return NB_OK; struct vrrp_vrouter *vr; bool accept; vr = nb_running_get_entry(args->dnode, NULL, true); accept = yang_dnode_get_bool(args->dnode, NULL); vr->accept_mode = accept; return NB_OK; } /* * XPath: * /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/advertisement-interval */ static int lib_interface_vrrp_vrrp_group_advertisement_interval_modify( struct nb_cb_modify_args *args) { if (args->event != NB_EV_APPLY) return NB_OK; struct vrrp_vrouter *vr; uint16_t advert_int; vr = nb_running_get_entry(args->dnode, NULL, true); advert_int = yang_dnode_get_uint16(args->dnode, NULL); vrrp_set_advertisement_interval(vr, advert_int); return NB_OK; } /* * XPath: /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/shutdown */ static int lib_interface_vrrp_vrrp_group_shutdown_modify(struct nb_cb_modify_args *args) { if (args->event != NB_EV_APPLY) return NB_OK; struct vrrp_vrouter *vr; bool shutdown; vr = nb_running_get_entry(args->dnode, NULL, true); shutdown = yang_dnode_get_bool(args->dnode, NULL); vr->shutdown = shutdown; if (shutdown) { vrrp_event(vr->v4, VRRP_EVENT_SHUTDOWN); vrrp_event(vr->v6, VRRP_EVENT_SHUTDOWN); } else { vrrp_check_start(vr); } return NB_OK; } /* * XPath: /frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/checksum-with- * ipv4-pseudoheader */ static int lib_interface_vrrp_vrrp_group_checksum_with_ipv4_pseudoheader_modify( struct nb_cb_modify_args *args) { if (args->event != NB_EV_APPLY) return NB_OK; struct vrrp_vrouter *vr; bool checksum_with_ipv4_ph; vr = nb_running_get_entry(args->dnode, NULL, true); checksum_with_ipv4_ph = yang_dnode_get_bool(args->dnode, NULL); vr->checksum_with_ipv4_pseudoheader = checksum_with_ipv4_ph; return NB_OK; } /* clang-format off */ const struct frr_yang_module_info frr_vrrpd_info = { .name = "frr-vrrpd", .nodes = { { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group", .cbs = { .create = lib_interface_vrrp_vrrp_group_create, .destroy = lib_interface_vrrp_vrrp_group_destroy, .get_next = lib_interface_vrrp_vrrp_group_get_next, .get_keys = lib_interface_vrrp_vrrp_group_get_keys, .lookup_entry = lib_interface_vrrp_vrrp_group_lookup_entry, .cli_show = cli_show_vrrp, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/version", .cbs = { .modify = lib_interface_vrrp_vrrp_group_version_modify, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/priority", .cbs = { .modify = lib_interface_vrrp_vrrp_group_priority_modify, .cli_show = cli_show_priority, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/preempt", .cbs = { .modify = lib_interface_vrrp_vrrp_group_preempt_modify, .cli_show = cli_show_preempt, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/accept-mode", .cbs = { .modify = lib_interface_vrrp_vrrp_group_accept_mode_modify, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/checksum-with-ipv4-pseudoheader", .cbs = { .modify = lib_interface_vrrp_vrrp_group_checksum_with_ipv4_pseudoheader_modify, .cli_show = cli_show_checksum_with_ipv4_pseudoheader, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/advertisement-interval", .cbs = { .modify = lib_interface_vrrp_vrrp_group_advertisement_interval_modify, .cli_show = cli_show_advertisement_interval, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/shutdown", .cbs = { .modify = lib_interface_vrrp_vrrp_group_shutdown_modify, .cli_show = cli_show_shutdown, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/virtual-address", .cbs = { .create = lib_interface_vrrp_vrrp_group_v4_virtual_address_create, .destroy = lib_interface_vrrp_vrrp_group_v4_virtual_address_destroy, .cli_show = cli_show_ip, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/current-priority", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v4_current_priority_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/vrrp-interface", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v4_vrrp_interface_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/source-address", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v4_source_address_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/state", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v4_state_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/master-advertisement-interval", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v4_master_advertisement_interval_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/skew-time", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v4_skew_time_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/counter/state-transition", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v4_counter_state_transition_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/counter/tx/advertisement", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v4_counter_tx_advertisement_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/counter/tx/gratuitous-arp", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v4_counter_tx_gratuitous_arp_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v4/counter/rx/advertisement", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v4_counter_rx_advertisement_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/virtual-address", .cbs = { .create = lib_interface_vrrp_vrrp_group_v6_virtual_address_create, .destroy = lib_interface_vrrp_vrrp_group_v6_virtual_address_destroy, .cli_show = cli_show_ipv6, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/current-priority", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v6_current_priority_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/vrrp-interface", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v6_vrrp_interface_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/source-address", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v6_source_address_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/state", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v6_state_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/master-advertisement-interval", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v6_master_advertisement_interval_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/skew-time", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v6_skew_time_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/counter/state-transition", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v6_counter_state_transition_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/counter/tx/advertisement", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v6_counter_tx_advertisement_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/counter/tx/neighbor-advertisement", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v6_counter_tx_neighbor_advertisement_get_elem, } }, { .xpath = "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group/v6/counter/rx/advertisement", .cbs = { .get_elem = lib_interface_vrrp_vrrp_group_v6_counter_rx_advertisement_get_elem, } }, { .xpath = NULL, }, } };