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-rw-r--r--zebra/zebra_dplane.h1035
1 files changed, 1035 insertions, 0 deletions
diff --git a/zebra/zebra_dplane.h b/zebra/zebra_dplane.h
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+++ b/zebra/zebra_dplane.h
@@ -0,0 +1,1035 @@
+/*
+ * Zebra dataplane layer api interfaces.
+ * Copyright (c) 2018 Volta Networks, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _ZEBRA_DPLANE_H
+#define _ZEBRA_DPLANE_H 1
+
+#include "lib/zebra.h"
+#include "lib/prefix.h"
+#include "lib/nexthop.h"
+#include "lib/nexthop_group.h"
+#include "lib/queue.h"
+#include "lib/vlan.h"
+#include "zebra/zebra_ns.h"
+#include "zebra/rib.h"
+#include "zebra/zserv.h"
+#include "zebra/zebra_mpls.h"
+#include "zebra/zebra_nhg.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Key netlink info from zebra ns */
+struct zebra_dplane_info {
+ ns_id_t ns_id;
+
+#if defined(HAVE_NETLINK)
+ int sock;
+ int seq;
+ bool is_cmd;
+#endif
+};
+
+/* Utility to fill in zns info from main zns struct */
+static inline void
+zebra_dplane_info_from_zns(struct zebra_dplane_info *zns_info,
+ const struct zebra_ns *zns, bool is_cmd)
+{
+ zns_info->ns_id = zns->ns_id;
+
+#if defined(HAVE_NETLINK)
+ zns_info->is_cmd = is_cmd;
+ if (is_cmd) {
+ zns_info->sock = zns->netlink_cmd.sock;
+ zns_info->seq = zns->netlink_cmd.seq;
+ } else {
+ zns_info->sock = zns->netlink.sock;
+ zns_info->seq = zns->netlink.seq;
+ }
+#endif /* NETLINK */
+}
+
+/*
+ * Notify dplane when namespaces are enabled and disabled. The dplane
+ * needs to start and stop reading incoming events from the ns.
+ */
+void zebra_dplane_ns_enable(struct zebra_ns *zns, bool enabled);
+
+/*
+ * Result codes used when returning status back to the main zebra context.
+ */
+
+/*
+ * Philosophy Note:
+ *
+ * Flags being SET/UNSET do not belong in the South Bound
+ * Interface. This Setting belongs at the calling level
+ * because we can and will have multiple different interfaces
+ * and we will have potentially multiple different
+ * modules/filters to call. As such Setting/Unsetting
+ * success failure should be handled by the caller.
+ */
+enum zebra_dplane_status {
+ ZEBRA_DPLANE_STATUS_NONE = 0,
+ ZEBRA_DPLANE_INSTALL_SUCCESS,
+ ZEBRA_DPLANE_INSTALL_FAILURE,
+ ZEBRA_DPLANE_DELETE_SUCCESS,
+ ZEBRA_DPLANE_DELETE_FAILURE,
+
+};
+
+enum zebra_dplane_result {
+ ZEBRA_DPLANE_REQUEST_QUEUED,
+ ZEBRA_DPLANE_REQUEST_SUCCESS,
+ ZEBRA_DPLANE_REQUEST_FAILURE,
+};
+
+/*
+ * API between the zebra dataplane system and the main zebra processing
+ * context.
+ */
+
+/*
+ * Operations that the dataplane can process.
+ */
+enum dplane_op_e {
+ DPLANE_OP_NONE = 0,
+
+ /* Route update */
+ DPLANE_OP_ROUTE_INSTALL,
+ DPLANE_OP_ROUTE_UPDATE,
+ DPLANE_OP_ROUTE_DELETE,
+ DPLANE_OP_ROUTE_NOTIFY,
+
+ /* Nexthop update */
+ DPLANE_OP_NH_INSTALL,
+ DPLANE_OP_NH_UPDATE,
+ DPLANE_OP_NH_DELETE,
+
+ /* LSP update */
+ DPLANE_OP_LSP_INSTALL,
+ DPLANE_OP_LSP_UPDATE,
+ DPLANE_OP_LSP_DELETE,
+ DPLANE_OP_LSP_NOTIFY,
+
+ /* Pseudowire update */
+ DPLANE_OP_PW_INSTALL,
+ DPLANE_OP_PW_UNINSTALL,
+
+ /* System route notification */
+ DPLANE_OP_SYS_ROUTE_ADD,
+ DPLANE_OP_SYS_ROUTE_DELETE,
+
+ /* Interface address update */
+ DPLANE_OP_ADDR_INSTALL,
+ DPLANE_OP_ADDR_UNINSTALL,
+
+ /* MAC address update */
+ DPLANE_OP_MAC_INSTALL,
+ DPLANE_OP_MAC_DELETE,
+
+ /* EVPN neighbor updates */
+ DPLANE_OP_NEIGH_INSTALL,
+ DPLANE_OP_NEIGH_UPDATE,
+ DPLANE_OP_NEIGH_DELETE,
+
+ /* EVPN VTEP updates */
+ DPLANE_OP_VTEP_ADD,
+ DPLANE_OP_VTEP_DELETE,
+
+ /* Policy based routing rule update */
+ DPLANE_OP_RULE_ADD,
+ DPLANE_OP_RULE_DELETE,
+ DPLANE_OP_RULE_UPDATE,
+
+ /* Link layer address discovery */
+ DPLANE_OP_NEIGH_DISCOVER,
+
+ /* bridge port update */
+ DPLANE_OP_BR_PORT_UPDATE,
+
+ /* Policy based routing iptable update */
+ DPLANE_OP_IPTABLE_ADD,
+ DPLANE_OP_IPTABLE_DELETE,
+
+ /* Policy based routing ipset update */
+ DPLANE_OP_IPSET_ADD,
+ DPLANE_OP_IPSET_DELETE,
+ DPLANE_OP_IPSET_ENTRY_ADD,
+ DPLANE_OP_IPSET_ENTRY_DELETE,
+
+ /* LINK LAYER IP address update */
+ DPLANE_OP_NEIGH_IP_INSTALL,
+ DPLANE_OP_NEIGH_IP_DELETE,
+
+ DPLANE_OP_NEIGH_TABLE_UPDATE,
+ DPLANE_OP_GRE_SET,
+
+ /* Incoming interface address events */
+ DPLANE_OP_INTF_ADDR_ADD,
+ DPLANE_OP_INTF_ADDR_DEL,
+
+ /* Incoming interface config events */
+ DPLANE_OP_INTF_NETCONFIG,
+
+ /* Interface update */
+ DPLANE_OP_INTF_INSTALL,
+ DPLANE_OP_INTF_UPDATE,
+ DPLANE_OP_INTF_DELETE,
+
+ /* Traffic control */
+ DPLANE_OP_TC_INSTALL,
+ DPLANE_OP_TC_UPDATE,
+ DPLANE_OP_TC_DELETE,
+};
+
+/*
+ * The vxlan/evpn neighbor management code needs some values to use
+ * when programming neighbor changes. Offer some platform-neutral values
+ * here for use within the dplane apis and plugins.
+ */
+
+/* Neighbor cache flags */
+#define DPLANE_NTF_EXT_LEARNED 0x01
+#define DPLANE_NTF_ROUTER 0x02
+#define DPLANE_NTF_USE 0x04
+
+/* Neighbor cache states */
+#define DPLANE_NUD_REACHABLE 0x01
+#define DPLANE_NUD_STALE 0x02
+#define DPLANE_NUD_NOARP 0x04
+#define DPLANE_NUD_PROBE 0x08
+#define DPLANE_NUD_INCOMPLETE 0x10
+#define DPLANE_NUD_PERMANENT 0x20
+#define DPLANE_NUD_FAILED 0x40
+
+/* MAC update flags - dplane_mac_info.update_flags */
+#define DPLANE_MAC_REMOTE (1 << 0)
+#define DPLANE_MAC_WAS_STATIC (1 << 1)
+#define DPLANE_MAC_SET_STATIC (1 << 2)
+#define DPLANE_MAC_SET_INACTIVE (1 << 3)
+
+/* Neigh update flags - dplane_neigh_info.update_flags */
+#define DPLANE_NEIGH_REMOTE (1 << 0)
+#define DPLANE_NEIGH_WAS_STATIC (1 << 1)
+#define DPLANE_NEIGH_SET_STATIC (1 << 2)
+#define DPLANE_NEIGH_SET_INACTIVE (1 << 3)
+#define DPLANE_NEIGH_NO_EXTENSION (1 << 4)
+
+#define DPLANE_BR_PORT_NON_DF (1 << 0)
+
+/* Definitions for the dplane 'netconf' apis, corresponding to the netlink
+ * NETCONF api.
+ * Sadly, netlink sends incremental updates, so its messages may contain
+ * just a single changed attribute, and not necessarily
+ * a complete snapshot of the attributes.
+ */
+enum dplane_netconf_status_e {
+ DPLANE_NETCONF_STATUS_UNKNOWN = 0,
+ DPLANE_NETCONF_STATUS_ENABLED,
+ DPLANE_NETCONF_STATUS_DISABLED
+};
+
+/* Some special ifindex values that may be part of the dplane netconf api. */
+#define DPLANE_NETCONF_IFINDEX_ALL -1
+#define DPLANE_NETCONF_IFINDEX_DEFAULT -2
+
+/* Enable system route notifications */
+void dplane_enable_sys_route_notifs(void);
+
+/*
+ * The dataplane context struct is used to exchange info between the main zebra
+ * context and the dataplane module(s). If these are two independent pthreads,
+ * they cannot share existing global data structures safely.
+ */
+
+/* Define a tailq list type for context blocks. The list is exposed/public,
+ * but the internal linkage in the context struct is private, so there
+ * are accessor apis that support enqueue and dequeue.
+ */
+TAILQ_HEAD(dplane_ctx_q, zebra_dplane_ctx);
+
+/* Declare a type for (optional) extended interface info objects. */
+TAILQ_HEAD(dplane_intf_extra_q, dplane_intf_extra);
+
+/* Allocate a context object */
+struct zebra_dplane_ctx *dplane_ctx_alloc(void);
+
+/*
+ * Reset an allocated context object for re-use. All internal allocations are
+ * freed.
+ */
+void dplane_ctx_reset(struct zebra_dplane_ctx *ctx);
+
+/*
+ * Allow zebra code to walk the queue of pending contexts, evaluate each one
+ * using a callback function. The caller can supply an optional void* arg also.
+ * If the function returns 'true', the context will be dequeued and freed
+ * without being processed.
+ */
+int dplane_clean_ctx_queue(bool (*context_cb)(struct zebra_dplane_ctx *ctx,
+ void *arg), void *val);
+
+/* Return a dataplane results context block after use; the caller's pointer will
+ * be cleared.
+ */
+void dplane_ctx_fini(struct zebra_dplane_ctx **pctx);
+
+/* Enqueue a context block to caller's tailq. This exists so that the
+ * context struct can remain opaque.
+ */
+void dplane_ctx_enqueue_tail(struct dplane_ctx_q *q,
+ const struct zebra_dplane_ctx *ctx);
+
+/* Append a list of context blocks to another list - again, just keeping
+ * the context struct opaque.
+ */
+void dplane_ctx_list_append(struct dplane_ctx_q *to_list,
+ struct dplane_ctx_q *from_list);
+
+/* Dequeue a context block from the head of caller's tailq */
+struct zebra_dplane_ctx *dplane_ctx_dequeue(struct dplane_ctx_q *q);
+struct zebra_dplane_ctx *dplane_ctx_get_head(struct dplane_ctx_q *q);
+
+/*
+ * Accessors for information from the context object
+ */
+enum zebra_dplane_result dplane_ctx_get_status(
+ const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_status(struct zebra_dplane_ctx *ctx,
+ enum zebra_dplane_result status);
+const char *dplane_res2str(enum zebra_dplane_result res);
+
+enum dplane_op_e dplane_ctx_get_op(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_op(struct zebra_dplane_ctx *ctx, enum dplane_op_e op);
+const char *dplane_op2str(enum dplane_op_e op);
+
+const struct prefix *dplane_ctx_get_dest(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_dest(struct zebra_dplane_ctx *ctx,
+ const struct prefix *dest);
+const char *dplane_ctx_get_ifname(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_ifname(struct zebra_dplane_ctx *ctx, const char *ifname);
+ifindex_t dplane_ctx_get_ifindex(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_ifindex(struct zebra_dplane_ctx *ctx, ifindex_t ifindex);
+
+/* Retrieve last/current provider id */
+uint32_t dplane_ctx_get_provider(const struct zebra_dplane_ctx *ctx);
+
+/* Providers running before the kernel can control whether a kernel
+ * update should be done.
+ */
+void dplane_ctx_set_skip_kernel(struct zebra_dplane_ctx *ctx);
+bool dplane_ctx_is_skip_kernel(const struct zebra_dplane_ctx *ctx);
+
+/* Source prefix is a little special - use convention to return NULL
+ * to mean "no src prefix"
+ */
+const struct prefix *dplane_ctx_get_src(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_src(struct zebra_dplane_ctx *ctx, const struct prefix *src);
+
+bool dplane_ctx_is_update(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_get_seq(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_get_old_seq(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_vrf(struct zebra_dplane_ctx *ctx, vrf_id_t vrf);
+vrf_id_t dplane_ctx_get_vrf(const struct zebra_dplane_ctx *ctx);
+
+/* In some paths we have only a namespace id */
+void dplane_ctx_set_ns_id(struct zebra_dplane_ctx *ctx, ns_id_t nsid);
+ns_id_t dplane_ctx_get_ns_id(const struct zebra_dplane_ctx *ctx);
+
+bool dplane_ctx_is_from_notif(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_notif_provider(struct zebra_dplane_ctx *ctx,
+ uint32_t id);
+uint32_t dplane_ctx_get_notif_provider(const struct zebra_dplane_ctx *ctx);
+
+/* Accessors for route update information */
+void dplane_ctx_set_type(struct zebra_dplane_ctx *ctx, int type);
+int dplane_ctx_get_type(const struct zebra_dplane_ctx *ctx);
+int dplane_ctx_get_old_type(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_afi(struct zebra_dplane_ctx *ctx, afi_t afi);
+afi_t dplane_ctx_get_afi(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_safi(struct zebra_dplane_ctx *ctx, safi_t safi);
+safi_t dplane_ctx_get_safi(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_table(struct zebra_dplane_ctx *ctx, uint32_t table);
+uint32_t dplane_ctx_get_table(const struct zebra_dplane_ctx *ctx);
+route_tag_t dplane_ctx_get_tag(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_tag(struct zebra_dplane_ctx *ctx, route_tag_t tag);
+route_tag_t dplane_ctx_get_old_tag(const struct zebra_dplane_ctx *ctx);
+uint16_t dplane_ctx_get_instance(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_instance(struct zebra_dplane_ctx *ctx, uint16_t instance);
+uint16_t dplane_ctx_get_old_instance(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_get_metric(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_get_old_metric(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_get_mtu(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_get_nh_mtu(const struct zebra_dplane_ctx *ctx);
+uint8_t dplane_ctx_get_distance(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_distance(struct zebra_dplane_ctx *ctx, uint8_t distance);
+uint8_t dplane_ctx_get_old_distance(const struct zebra_dplane_ctx *ctx);
+
+/* Accessors for traffic control context */
+uint64_t dplane_ctx_tc_get_rate(const struct zebra_dplane_ctx *ctx);
+uint64_t dplane_ctx_tc_get_ceil(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_tc_get_filter_bm(const struct zebra_dplane_ctx *ctx);
+const struct prefix *
+dplane_ctx_tc_get_src_ip(const struct zebra_dplane_ctx *ctx);
+const struct prefix *
+dplane_ctx_tc_get_dst_ip(const struct zebra_dplane_ctx *ctx);
+uint8_t dplane_ctx_tc_get_ip_proto(const struct zebra_dplane_ctx *ctx);
+
+void dplane_ctx_set_nexthops(struct zebra_dplane_ctx *ctx, struct nexthop *nh);
+void dplane_ctx_set_backup_nhg(struct zebra_dplane_ctx *ctx,
+ const struct nexthop_group *nhg);
+
+uint32_t dplane_ctx_get_nhg_id(const struct zebra_dplane_ctx *ctx);
+const struct nexthop_group *dplane_ctx_get_ng(
+ const struct zebra_dplane_ctx *ctx);
+const struct nexthop_group *dplane_ctx_get_old_ng(
+ const struct zebra_dplane_ctx *ctx);
+
+/* Optional extra info about interfaces in nexthops - a plugin must enable
+ * this extra info.
+ */
+const struct dplane_intf_extra *
+dplane_ctx_get_intf_extra(const struct zebra_dplane_ctx *ctx);
+
+const struct dplane_intf_extra *
+dplane_ctx_intf_extra_next(const struct zebra_dplane_ctx *ctx,
+ const struct dplane_intf_extra *ptr);
+
+vrf_id_t dplane_intf_extra_get_vrfid(const struct dplane_intf_extra *ptr);
+uint32_t dplane_intf_extra_get_ifindex(const struct dplane_intf_extra *ptr);
+uint32_t dplane_intf_extra_get_flags(const struct dplane_intf_extra *ptr);
+uint32_t dplane_intf_extra_get_status(const struct dplane_intf_extra *ptr);
+
+/* Backup nexthop information (list of nexthops) if present. */
+const struct nexthop_group *
+dplane_ctx_get_backup_ng(const struct zebra_dplane_ctx *ctx);
+const struct nexthop_group *
+dplane_ctx_get_old_backup_ng(const struct zebra_dplane_ctx *ctx);
+
+/* Accessors for nexthop information */
+uint32_t dplane_ctx_get_nhe_id(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_get_old_nhe_id(const struct zebra_dplane_ctx *ctx);
+afi_t dplane_ctx_get_nhe_afi(const struct zebra_dplane_ctx *ctx);
+vrf_id_t dplane_ctx_get_nhe_vrf_id(const struct zebra_dplane_ctx *ctx);
+int dplane_ctx_get_nhe_type(const struct zebra_dplane_ctx *ctx);
+const struct nexthop_group *
+dplane_ctx_get_nhe_ng(const struct zebra_dplane_ctx *ctx);
+const struct nh_grp *
+dplane_ctx_get_nhe_nh_grp(const struct zebra_dplane_ctx *ctx);
+uint8_t dplane_ctx_get_nhe_nh_grp_count(const struct zebra_dplane_ctx *ctx);
+
+/* Accessors for LSP information */
+
+/* Init the internal LSP data struct - necessary before adding to it.
+ * If 'lsp' is non-NULL, info will be copied from it to the internal
+ * context data area.
+ */
+int dplane_ctx_lsp_init(struct zebra_dplane_ctx *ctx, enum dplane_op_e op,
+ struct zebra_lsp *lsp);
+
+mpls_label_t dplane_ctx_get_in_label(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_in_label(struct zebra_dplane_ctx *ctx,
+ mpls_label_t label);
+uint8_t dplane_ctx_get_addr_family(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_addr_family(struct zebra_dplane_ctx *ctx,
+ uint8_t family);
+uint32_t dplane_ctx_get_lsp_flags(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_lsp_flags(struct zebra_dplane_ctx *ctx,
+ uint32_t flags);
+const struct nhlfe_list_head *dplane_ctx_get_nhlfe_list(
+ const struct zebra_dplane_ctx *ctx);
+const struct nhlfe_list_head *dplane_ctx_get_backup_nhlfe_list(
+ const struct zebra_dplane_ctx *ctx);
+
+struct zebra_nhlfe *dplane_ctx_add_nhlfe(struct zebra_dplane_ctx *ctx,
+ enum lsp_types_t lsp_type,
+ enum nexthop_types_t nh_type,
+ const union g_addr *gate,
+ ifindex_t ifindex, uint8_t num_labels,
+ mpls_label_t *out_labels);
+
+struct zebra_nhlfe *dplane_ctx_add_backup_nhlfe(
+ struct zebra_dplane_ctx *ctx, enum lsp_types_t lsp_type,
+ enum nexthop_types_t nh_type, const union g_addr *gate,
+ ifindex_t ifindex, uint8_t num_labels, mpls_label_t *out_labels);
+
+const struct zebra_nhlfe *
+dplane_ctx_get_best_nhlfe(const struct zebra_dplane_ctx *ctx);
+const struct zebra_nhlfe *
+dplane_ctx_set_best_nhlfe(struct zebra_dplane_ctx *ctx,
+ struct zebra_nhlfe *nhlfe);
+uint32_t dplane_ctx_get_lsp_num_ecmp(const struct zebra_dplane_ctx *ctx);
+
+/* Accessors for pseudowire information */
+mpls_label_t dplane_ctx_get_pw_local_label(const struct zebra_dplane_ctx *ctx);
+mpls_label_t dplane_ctx_get_pw_remote_label(const struct zebra_dplane_ctx *ctx);
+int dplane_ctx_get_pw_type(const struct zebra_dplane_ctx *ctx);
+int dplane_ctx_get_pw_af(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_get_pw_flags(const struct zebra_dplane_ctx *ctx);
+int dplane_ctx_get_pw_status(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_pw_status(struct zebra_dplane_ctx *ctx, int status);
+const union g_addr *dplane_ctx_get_pw_dest(
+ const struct zebra_dplane_ctx *ctx);
+const union pw_protocol_fields *dplane_ctx_get_pw_proto(
+ const struct zebra_dplane_ctx *ctx);
+const struct nexthop_group *dplane_ctx_get_pw_nhg(
+ const struct zebra_dplane_ctx *ctx);
+const struct nexthop_group *
+dplane_ctx_get_pw_primary_nhg(const struct zebra_dplane_ctx *ctx);
+const struct nexthop_group *
+dplane_ctx_get_pw_backup_nhg(const struct zebra_dplane_ctx *ctx);
+
+/* Accessors for interface information */
+uint32_t dplane_ctx_get_intf_metric(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_intf_metric(struct zebra_dplane_ctx *ctx, uint32_t metric);
+uint32_t dplane_ctx_get_intf_pd_reason_val(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_intf_pd_reason_val(struct zebra_dplane_ctx *ctx, bool val);
+bool dplane_ctx_intf_is_protodown(const struct zebra_dplane_ctx *ctx);
+/* Is interface addr p2p? */
+bool dplane_ctx_intf_is_connected(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_intf_set_connected(struct zebra_dplane_ctx *ctx);
+bool dplane_ctx_intf_is_secondary(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_intf_set_secondary(struct zebra_dplane_ctx *ctx);
+bool dplane_ctx_intf_is_broadcast(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_intf_set_broadcast(struct zebra_dplane_ctx *ctx);
+const struct prefix *dplane_ctx_get_intf_addr(
+ const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_intf_addr(struct zebra_dplane_ctx *ctx,
+ const struct prefix *p);
+bool dplane_ctx_intf_has_dest(const struct zebra_dplane_ctx *ctx);
+const struct prefix *dplane_ctx_get_intf_dest(
+ const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_intf_dest(struct zebra_dplane_ctx *ctx,
+ const struct prefix *p);
+bool dplane_ctx_intf_has_label(const struct zebra_dplane_ctx *ctx);
+const char *dplane_ctx_get_intf_label(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_set_intf_label(struct zebra_dplane_ctx *ctx, const char *label);
+
+/* Accessors for MAC information */
+vlanid_t dplane_ctx_mac_get_vlan(const struct zebra_dplane_ctx *ctx);
+bool dplane_ctx_mac_is_sticky(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_mac_get_update_flags(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_mac_get_nhg_id(const struct zebra_dplane_ctx *ctx);
+const struct ethaddr *dplane_ctx_mac_get_addr(
+ const struct zebra_dplane_ctx *ctx);
+const struct in_addr *dplane_ctx_mac_get_vtep_ip(
+ const struct zebra_dplane_ctx *ctx);
+ifindex_t dplane_ctx_mac_get_br_ifindex(const struct zebra_dplane_ctx *ctx);
+
+/* Accessors for neighbor information */
+const struct ipaddr *dplane_ctx_neigh_get_ipaddr(
+ const struct zebra_dplane_ctx *ctx);
+const struct ethaddr *dplane_ctx_neigh_get_mac(
+ const struct zebra_dplane_ctx *ctx);
+const struct ipaddr *
+dplane_ctx_neigh_get_link_ip(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_neigh_get_flags(const struct zebra_dplane_ctx *ctx);
+uint16_t dplane_ctx_neigh_get_state(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_neigh_get_update_flags(const struct zebra_dplane_ctx *ctx);
+
+/* Accessors for policy based routing rule information */
+int dplane_ctx_rule_get_sock(const struct zebra_dplane_ctx *ctx);
+int dplane_ctx_rule_get_unique(const struct zebra_dplane_ctx *ctx);
+int dplane_ctx_rule_get_seq(const struct zebra_dplane_ctx *ctx);
+const char *dplane_ctx_rule_get_ifname(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_rule_get_priority(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_rule_get_old_priority(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_rule_get_table(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_rule_get_old_table(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_rule_get_filter_bm(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_rule_get_old_filter_bm(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_rule_get_fwmark(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_rule_get_old_fwmark(const struct zebra_dplane_ctx *ctx);
+uint8_t dplane_ctx_rule_get_dsfield(const struct zebra_dplane_ctx *ctx);
+uint8_t dplane_ctx_rule_get_old_dsfield(const struct zebra_dplane_ctx *ctx);
+uint8_t dplane_ctx_rule_get_ipproto(const struct zebra_dplane_ctx *ctx);
+uint8_t dplane_ctx_rule_get_old_ipproto(const struct zebra_dplane_ctx *ctx);
+uint16_t dplane_ctx_rule_get_src_port(const struct zebra_dplane_ctx *ctx);
+uint16_t dplane_ctx_rule_get_old_src_port(const struct zebra_dplane_ctx *ctx);
+uint16_t dplane_ctx_rule_get_dst_port(const struct zebra_dplane_ctx *ctx);
+uint16_t dplane_ctx_rule_get_old_dst_port(const struct zebra_dplane_ctx *ctx);
+const struct prefix *
+dplane_ctx_rule_get_src_ip(const struct zebra_dplane_ctx *ctx);
+const struct prefix *
+dplane_ctx_rule_get_old_src_ip(const struct zebra_dplane_ctx *ctx);
+const struct prefix *
+dplane_ctx_rule_get_dst_ip(const struct zebra_dplane_ctx *ctx);
+const struct prefix *
+dplane_ctx_rule_get_old_dst_ip(const struct zebra_dplane_ctx *ctx);
+const struct ethaddr *
+dplane_ctx_rule_get_smac(const struct zebra_dplane_ctx *ctx);
+const struct ethaddr *
+dplane_ctx_rule_get_dmac(const struct zebra_dplane_ctx *ctx);
+int dplane_ctx_rule_get_out_ifindex(const struct zebra_dplane_ctx *ctx);
+intptr_t dplane_ctx_rule_get_dp_flow_ptr(const struct zebra_dplane_ctx *ctx);
+intptr_t
+dplane_ctx_rule_get_old_dp_flow_ptr(const struct zebra_dplane_ctx *ctx);
+void dplane_ctx_rule_set_dp_flow_ptr(struct zebra_dplane_ctx *ctx,
+ intptr_t dp_flow_ptr);
+/* Accessors for policy based routing iptable information */
+struct zebra_pbr_iptable;
+void dplane_ctx_get_pbr_iptable(const struct zebra_dplane_ctx *ctx,
+ struct zebra_pbr_iptable *table);
+struct zebra_pbr_ipset;
+void dplane_ctx_get_pbr_ipset(const struct zebra_dplane_ctx *ctx,
+ struct zebra_pbr_ipset *ipset);
+struct zebra_pbr_ipset_entry;
+void dplane_ctx_get_pbr_ipset_entry(const struct zebra_dplane_ctx *ctx,
+ struct zebra_pbr_ipset_entry *entry);
+/* Accessors for bridge port information */
+uint32_t dplane_ctx_get_br_port_flags(const struct zebra_dplane_ctx *ctx);
+uint32_t
+dplane_ctx_get_br_port_sph_filter_cnt(const struct zebra_dplane_ctx *ctx);
+const struct in_addr *
+dplane_ctx_get_br_port_sph_filters(const struct zebra_dplane_ctx *ctx);
+uint32_t
+dplane_ctx_get_br_port_backup_nhg_id(const struct zebra_dplane_ctx *ctx);
+
+/* Accessors for neighbor table information */
+uint8_t dplane_ctx_neightable_get_family(const struct zebra_dplane_ctx *ctx);
+uint32_t
+dplane_ctx_neightable_get_app_probes(const struct zebra_dplane_ctx *ctx);
+uint32_t
+dplane_ctx_neightable_get_mcast_probes(const struct zebra_dplane_ctx *ctx);
+uint32_t
+dplane_ctx_neightable_get_ucast_probes(const struct zebra_dplane_ctx *ctx);
+
+/* Accessor for GRE set */
+uint32_t
+dplane_ctx_gre_get_link_ifindex(const struct zebra_dplane_ctx *ctx);
+unsigned int
+dplane_ctx_gre_get_mtu(const struct zebra_dplane_ctx *ctx);
+const struct zebra_l2info_gre *
+dplane_ctx_gre_get_info(const struct zebra_dplane_ctx *ctx);
+
+/* Interface netconf info */
+enum dplane_netconf_status_e
+dplane_ctx_get_netconf_mpls(const struct zebra_dplane_ctx *ctx);
+enum dplane_netconf_status_e
+dplane_ctx_get_netconf_mcast(const struct zebra_dplane_ctx *ctx);
+enum dplane_netconf_status_e
+dplane_ctx_get_netconf_linkdown(const struct zebra_dplane_ctx *ctx);
+
+void dplane_ctx_set_netconf_mpls(struct zebra_dplane_ctx *ctx,
+ enum dplane_netconf_status_e val);
+void dplane_ctx_set_netconf_mcast(struct zebra_dplane_ctx *ctx,
+ enum dplane_netconf_status_e val);
+void dplane_ctx_set_netconf_linkdown(struct zebra_dplane_ctx *ctx,
+ enum dplane_netconf_status_e val);
+
+/* Namespace fd info - esp. for netlink communication */
+const struct zebra_dplane_info *dplane_ctx_get_ns(
+ const struct zebra_dplane_ctx *ctx);
+int dplane_ctx_get_ns_sock(const struct zebra_dplane_ctx *ctx);
+
+/* Indicates zebra shutdown/exit is in progress. Some operations may be
+ * simplified or skipped during shutdown processing.
+ */
+bool dplane_is_in_shutdown(void);
+
+/*
+ * Enqueue route change operations for the dataplane.
+ */
+enum zebra_dplane_result dplane_route_add(struct route_node *rn,
+ struct route_entry *re);
+
+enum zebra_dplane_result dplane_route_update(struct route_node *rn,
+ struct route_entry *re,
+ struct route_entry *old_re);
+
+enum zebra_dplane_result dplane_route_delete(struct route_node *rn,
+ struct route_entry *re);
+
+/* Notify the dplane when system/connected routes change */
+enum zebra_dplane_result dplane_sys_route_add(struct route_node *rn,
+ struct route_entry *re);
+enum zebra_dplane_result dplane_sys_route_del(struct route_node *rn,
+ struct route_entry *re);
+
+/* Update from an async notification, to bring other fibs up-to-date */
+enum zebra_dplane_result dplane_route_notif_update(
+ struct route_node *rn,
+ struct route_entry *re,
+ enum dplane_op_e op,
+ struct zebra_dplane_ctx *ctx);
+
+/*
+ * Enqueue bridge port changes for the dataplane.
+ */
+enum zebra_dplane_result dplane_br_port_update(
+ const struct interface *ifp, bool non_df, uint32_t sph_filter_cnt,
+ const struct in_addr *sph_filters, uint32_t backup_nhg_id);
+
+/* Forward ref of nhg_hash_entry */
+struct nhg_hash_entry;
+/*
+ * Enqueue a nexthop change operation for the dataplane.
+ */
+enum zebra_dplane_result dplane_nexthop_add(struct nhg_hash_entry *nhe);
+enum zebra_dplane_result dplane_nexthop_update(struct nhg_hash_entry *nhe);
+enum zebra_dplane_result dplane_nexthop_delete(struct nhg_hash_entry *nhe);
+
+/*
+ * Enqueue LSP change operations for the dataplane.
+ */
+enum zebra_dplane_result dplane_lsp_add(struct zebra_lsp *lsp);
+enum zebra_dplane_result dplane_lsp_update(struct zebra_lsp *lsp);
+enum zebra_dplane_result dplane_lsp_delete(struct zebra_lsp *lsp);
+
+/* Update or un-install resulting from an async notification */
+enum zebra_dplane_result dplane_lsp_notif_update(struct zebra_lsp *lsp,
+ enum dplane_op_e op,
+ struct zebra_dplane_ctx *ctx);
+
+/*
+ * Enqueue pseudowire operations for the dataplane.
+ */
+enum zebra_dplane_result dplane_pw_install(struct zebra_pw *pw);
+enum zebra_dplane_result dplane_pw_uninstall(struct zebra_pw *pw);
+
+enum zebra_dplane_result
+dplane_intf_mpls_modify_state(const struct interface *ifp, const bool set);
+/*
+ * Enqueue interface address changes for the dataplane.
+ */
+enum zebra_dplane_result dplane_intf_addr_set(const struct interface *ifp,
+ const struct connected *ifc);
+enum zebra_dplane_result dplane_intf_addr_unset(const struct interface *ifp,
+ const struct connected *ifc);
+
+/*
+ * Enqueue interface link changes for the dataplane.
+ */
+enum zebra_dplane_result dplane_intf_add(const struct interface *ifp);
+enum zebra_dplane_result dplane_intf_update(const struct interface *ifp);
+enum zebra_dplane_result dplane_intf_delete(const struct interface *ifp);
+
+/*
+ * Enqueue interface link changes for the dataplane.
+ */
+enum zebra_dplane_result dplane_tc_add(void);
+enum zebra_dplane_result dplane_tc_update(void);
+enum zebra_dplane_result dplane_tc_delete(void);
+
+/*
+ * Link layer operations for the dataplane.
+ */
+enum zebra_dplane_result dplane_neigh_ip_update(enum dplane_op_e op,
+ const struct interface *ifp,
+ struct ipaddr *link_ip,
+ struct ipaddr *ip,
+ uint32_t ndm_state,
+ int protocol);
+
+/*
+ * Enqueue evpn mac operations for the dataplane.
+ */
+enum zebra_dplane_result dplane_rem_mac_add(const struct interface *ifp,
+ const struct interface *bridge_ifp,
+ vlanid_t vid,
+ const struct ethaddr *mac,
+ struct in_addr vtep_ip,
+ bool sticky,
+ uint32_t nhg_id,
+ bool was_static);
+
+enum zebra_dplane_result dplane_local_mac_add(const struct interface *ifp,
+ const struct interface *bridge_ifp,
+ vlanid_t vid,
+ const struct ethaddr *mac,
+ bool sticky,
+ uint32_t set_static,
+ uint32_t set_inactive);
+
+enum zebra_dplane_result
+dplane_local_mac_del(const struct interface *ifp,
+ const struct interface *bridge_ifp, vlanid_t vid,
+ const struct ethaddr *mac);
+
+enum zebra_dplane_result dplane_rem_mac_del(const struct interface *ifp,
+ const struct interface *bridge_ifp,
+ vlanid_t vid,
+ const struct ethaddr *mac,
+ struct in_addr vtep_ip);
+
+/* Helper api to init an empty or new context for a MAC update */
+void dplane_mac_init(struct zebra_dplane_ctx *ctx,
+ const struct interface *ifp,
+ const struct interface *br_ifp,
+ vlanid_t vid,
+ const struct ethaddr *mac,
+ struct in_addr vtep_ip,
+ bool sticky,
+ uint32_t nhg_id, uint32_t update_flags);
+
+/*
+ * Enqueue evpn neighbor updates for the dataplane.
+ */
+enum zebra_dplane_result dplane_rem_neigh_add(const struct interface *ifp,
+ const struct ipaddr *ip,
+ const struct ethaddr *mac,
+ uint32_t flags, bool was_static);
+enum zebra_dplane_result dplane_local_neigh_add(const struct interface *ifp,
+ const struct ipaddr *ip,
+ const struct ethaddr *mac,
+ bool set_router, bool set_static,
+ bool set_inactive);
+enum zebra_dplane_result dplane_rem_neigh_delete(const struct interface *ifp,
+ const struct ipaddr *ip);
+
+/*
+ * Enqueue evpn VTEP updates for the dataplane.
+ */
+enum zebra_dplane_result dplane_vtep_add(const struct interface *ifp,
+ const struct in_addr *ip,
+ vni_t vni);
+enum zebra_dplane_result dplane_vtep_delete(const struct interface *ifp,
+ const struct in_addr *ip,
+ vni_t vni);
+
+/*
+ * Enqueue a neighbour discovery request for the dataplane.
+ */
+enum zebra_dplane_result dplane_neigh_discover(const struct interface *ifp,
+ const struct ipaddr *ip);
+
+/*
+ * Enqueue a neighbor table parameter set
+ */
+enum zebra_dplane_result dplane_neigh_table_update(const struct interface *ifp,
+ const uint8_t family,
+ const uint32_t app_probes,
+ const uint32_t ucast_probes,
+ const uint32_t mcast_probes);
+
+/*
+ * Enqueue a GRE set
+ */
+enum zebra_dplane_result
+dplane_gre_set(struct interface *ifp, struct interface *ifp_link,
+ unsigned int mtu, const struct zebra_l2info_gre *gre_info);
+
+/* Forward ref of zebra_pbr_rule */
+struct zebra_pbr_rule;
+
+/*
+ * Enqueue policy based routing rule for the dataplane.
+ * It is possible that the user-defined sequence number and the one in the
+ * forwarding plane may not coincide, hence the API requires a separate
+ * rule priority - maps to preference/FRA_PRIORITY on Linux.
+ */
+enum zebra_dplane_result dplane_pbr_rule_add(struct zebra_pbr_rule *rule);
+enum zebra_dplane_result dplane_pbr_rule_delete(struct zebra_pbr_rule *rule);
+enum zebra_dplane_result
+dplane_pbr_rule_update(struct zebra_pbr_rule *old_rule,
+ struct zebra_pbr_rule *new_rule);
+/* iptable */
+enum zebra_dplane_result
+dplane_pbr_iptable_add(struct zebra_pbr_iptable *iptable);
+enum zebra_dplane_result
+dplane_pbr_iptable_delete(struct zebra_pbr_iptable *iptable);
+
+/* ipset */
+struct zebra_pbr_ipset;
+enum zebra_dplane_result dplane_pbr_ipset_add(struct zebra_pbr_ipset *ipset);
+enum zebra_dplane_result dplane_pbr_ipset_delete(struct zebra_pbr_ipset *ipset);
+
+/* ipset entry */
+struct zebra_pbr_ipset_entry;
+enum zebra_dplane_result
+dplane_pbr_ipset_entry_add(struct zebra_pbr_ipset_entry *ipset);
+enum zebra_dplane_result
+dplane_pbr_ipset_entry_delete(struct zebra_pbr_ipset_entry *ipset);
+
+/* Encode route information into data plane context. */
+int dplane_ctx_route_init(struct zebra_dplane_ctx *ctx, enum dplane_op_e op,
+ struct route_node *rn, struct route_entry *re);
+
+/* Encode next hop information into data plane context. */
+int dplane_ctx_nexthop_init(struct zebra_dplane_ctx *ctx, enum dplane_op_e op,
+ struct nhg_hash_entry *nhe);
+
+/* Encode interface information into data plane context. */
+int dplane_ctx_intf_init(struct zebra_dplane_ctx *ctx, enum dplane_op_e op,
+ const struct interface *ifp);
+
+/* Encode traffic control information into data plane context. */
+int dplane_ctx_tc_init(struct zebra_dplane_ctx *ctx, enum dplane_op_e op);
+
+/* Retrieve the limit on the number of pending, unprocessed updates. */
+uint32_t dplane_get_in_queue_limit(void);
+
+/* Configure limit on the number of pending, queued updates. If 'unset', reset
+ * to default value.
+ */
+void dplane_set_in_queue_limit(uint32_t limit, bool set);
+
+/* Retrieve the current queue depth of incoming, unprocessed updates */
+uint32_t dplane_get_in_queue_len(void);
+
+/*
+ * Vty/cli apis
+ */
+int dplane_show_helper(struct vty *vty, bool detailed);
+int dplane_show_provs_helper(struct vty *vty, bool detailed);
+int dplane_config_write_helper(struct vty *vty);
+
+/*
+ * Dataplane providers: modules that process or consume dataplane events.
+ */
+
+struct zebra_dplane_provider;
+
+/* Support string name for a dataplane provider */
+#define DPLANE_PROVIDER_NAMELEN 64
+
+/* Priority or ordering values for providers. The idea is that there may be
+ * some pre-processing, followed by an external or remote dataplane,
+ * followed by the kernel, followed by some post-processing step (such as
+ * the fpm output stream.)
+ */
+enum dplane_provider_prio {
+ DPLANE_PRIO_NONE = 0,
+ DPLANE_PRIO_PREPROCESS,
+ DPLANE_PRIO_PRE_KERNEL,
+ DPLANE_PRIO_KERNEL,
+ DPLANE_PRIO_POSTPROCESS,
+ DPLANE_PRIO_LAST
+};
+
+/* Flags values used during provider registration. */
+#define DPLANE_PROV_FLAGS_DEFAULT 0x0
+
+/* Provider will be spawning its own worker thread */
+#define DPLANE_PROV_FLAG_THREADED 0x1
+
+/* Provider registration: ordering or priority value, callbacks, and optional
+ * opaque data value. If 'prov_p', return the newly-allocated provider object
+ * on success.
+ */
+
+/* Providers offer an entry-point for incoming work, called in the context of
+ * the dataplane pthread. The dataplane pthread enqueues any new work to the
+ * provider's 'inbound' queue, then calls the callback. The dataplane
+ * then checks the provider's outbound queue for completed work.
+ */
+
+/*
+ * Providers can offer a 'start' callback; if present, the dataplane will
+ * call it when it is starting - when its pthread and event-scheduling
+ * thread_master are available.
+ */
+
+/* Providers can offer an entry-point for shutdown and cleanup. This is called
+ * with 'early' during shutdown, to indicate that the dataplane subsystem
+ * is allowing work to move through the providers and finish.
+ * When called without 'early', the provider should release
+ * all resources (if it has any allocated).
+ */
+int dplane_provider_register(const char *name,
+ enum dplane_provider_prio prio,
+ int flags,
+ int (*start_fp)(struct zebra_dplane_provider *),
+ int (*fp)(struct zebra_dplane_provider *),
+ int (*fini_fp)(struct zebra_dplane_provider *,
+ bool early),
+ void *data,
+ struct zebra_dplane_provider **prov_p);
+
+/* Accessors for provider attributes */
+const char *dplane_provider_get_name(const struct zebra_dplane_provider *prov);
+uint32_t dplane_provider_get_id(const struct zebra_dplane_provider *prov);
+void *dplane_provider_get_data(const struct zebra_dplane_provider *prov);
+bool dplane_provider_is_threaded(const struct zebra_dplane_provider *prov);
+
+/* Lock/unlock a provider's mutex - iff the provider was registered with
+ * the THREADED flag.
+ */
+void dplane_provider_lock(struct zebra_dplane_provider *prov);
+void dplane_provider_unlock(struct zebra_dplane_provider *prov);
+
+/* Obtain thread_master for dataplane thread */
+struct thread_master *dplane_get_thread_master(void);
+
+/* Providers should (generally) limit number of updates per work cycle */
+int dplane_provider_get_work_limit(const struct zebra_dplane_provider *prov);
+
+/* Provider api to signal that work/events are available
+ * for the dataplane pthread.
+ */
+int dplane_provider_work_ready(void);
+
+/* Dequeue, maintain associated counter and locking */
+struct zebra_dplane_ctx *dplane_provider_dequeue_in_ctx(
+ struct zebra_dplane_provider *prov);
+
+/* Dequeue work to a list, maintain counter and locking, return count */
+int dplane_provider_dequeue_in_list(struct zebra_dplane_provider *prov,
+ struct dplane_ctx_q *listp);
+
+/* Current completed work queue length */
+uint32_t dplane_provider_out_ctx_queue_len(struct zebra_dplane_provider *prov);
+
+/* Enqueue completed work, maintain associated counter and locking */
+void dplane_provider_enqueue_out_ctx(struct zebra_dplane_provider *prov,
+ struct zebra_dplane_ctx *ctx);
+
+/* Enqueue a context directly to zebra main. */
+void dplane_provider_enqueue_to_zebra(struct zebra_dplane_ctx *ctx);
+
+/* Enable collection of extra info about interfaces in route updates;
+ * this allows a provider/plugin to see some extra info in route update
+ * context objects.
+ */
+void dplane_enable_intf_extra_info(void);
+
+/*
+ * Initialize the dataplane modules at zebra startup. This is currently called
+ * by the rib module. Zebra registers a results callback with the dataplane.
+ * The callback is called in the dataplane pthread context,
+ * so the expectation is that the contexts are queued for the zebra
+ * main pthread.
+ */
+void zebra_dplane_init(int (*) (struct dplane_ctx_q *));
+
+/*
+ * Start the dataplane pthread. This step needs to be run later than the
+ * 'init' step, in case zebra has fork-ed.
+ */
+void zebra_dplane_start(void);
+
+/* Finalize/cleanup apis, one called early as shutdown is starting,
+ * one called late at the end of zebra shutdown, and then one called
+ * from the zebra main pthread to stop the dplane pthread and
+ * free all resources.
+ *
+ * Zebra expects to try to clean up all vrfs and all routes during
+ * shutdown, so the dplane must be available until very late.
+ */
+void zebra_dplane_pre_finish(void);
+void zebra_dplane_finish(void);
+void zebra_dplane_shutdown(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ZEBRA_DPLANE_H */