staticd: Start the addition of a staticd

This is the start of separating out the static
handling code from zebra -> staticd.  This will
help simplify the zebra code and isolate static
route handling to it's own code base.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

1 files changed, 0 insertions, 830 deletions

diff --git a/zebra/zebra_static.c b/zebra/zebra_static.c
index 76346f6b66..d6e07f1254 100644
--- a/zebra/zebra_static.c
+++ b/zebra/zebra_static.c
@@ -20,833 +20,3 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 #include <zebra.h>
-
-#include <lib/nexthop.h>
-#include <lib/memory.h>
-#include <lib/srcdest_table.h>
-#include <lib/if.h>
-
-#include "vty.h"
-#include "zebra/debug.h"
-#include "zebra/rib.h"
-#include "zebra/zserv.h"
-#include "zebra/zebra_vrf.h"
-#include "zebra/zebra_static.h"
-#include "zebra/zebra_rnh.h"
-#include "zebra/redistribute.h"
-#include "zebra/zebra_memory.h"
-
-/* Install static route into rib. */
-void static_install_route(afi_t afi, safi_t safi, const struct prefix *p,
-			  const struct prefix_ipv6 *src_p,
-			  struct static_route *si)
-{
-	struct route_entry *re;
-	struct route_node *rn;
-	struct route_table *table;
-	struct prefix nh_p;
-	struct nexthop *nexthop = NULL;
-	enum blackhole_type bh_type = 0;
-	struct vrf *nh_vrf;
-
-	/* Lookup table.  */
-	table = zebra_vrf_table_with_table_id(afi, safi,
-					      si->vrf_id,
-					      si->table_id);
-	if (!table)
-		return;
-
-	/*
-	 * If a specific vrf is coming up and the nexthop vrf we are
-	 * looking at using hasn't been brought up yet, just don't
-	 * install the static route yet.
-	 * When the nexthop vrf comes up we will get another call
-	 * back to do the right thing.  I'm putting this check
-	 * here because we are calling static_install_route a bunch
-	 * from a bunch of different callpaths.
-	 */
-	nh_vrf = vrf_lookup_by_id(si->nh_vrf_id);
-	if (!nh_vrf)
-		return;
-
-	memset(&nh_p, 0, sizeof(nh_p));
-	if (si->type == STATIC_BLACKHOLE) {
-		switch (si->bh_type) {
-		case STATIC_BLACKHOLE_DROP:
-		case STATIC_BLACKHOLE_NULL:
-			bh_type = BLACKHOLE_NULL;
-			break;
-		case STATIC_BLACKHOLE_REJECT:
-			bh_type = BLACKHOLE_REJECT;
-			break;
-		}
-	}
-
-	/* Lookup existing route */
-	rn = srcdest_rnode_get(table, p, src_p);
-	RNODE_FOREACH_RE (rn, re) {
-		if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED))
-			continue;
-
-		if (re->type == ZEBRA_ROUTE_STATIC
-		    && re->distance == si->distance)
-			break;
-	}
-
-	if (re) {
-		/* if tag value changed , update old value in RIB */
-		if (re->tag != si->tag)
-			re->tag = si->tag;
-
-		/* Same distance static route is there.  Update it with new
-		   nexthop. */
-		route_unlock_node(rn);
-		switch (si->type) {
-		case STATIC_IPV4_GATEWAY:
-			nexthop = route_entry_nexthop_ipv4_add(
-				re, &si->addr.ipv4, NULL, si->nh_vrf_id);
-			nh_p.family = AF_INET;
-			nh_p.prefixlen = IPV4_MAX_BITLEN;
-			nh_p.u.prefix4 = si->addr.ipv4;
-			zebra_register_rnh_static_nh(si->nh_vrf_id, &nh_p, rn);
-			break;
-		case STATIC_IPV4_GATEWAY_IFNAME:
-			nexthop = route_entry_nexthop_ipv4_ifindex_add(
-				re, &si->addr.ipv4, NULL, si->ifindex,
-				si->nh_vrf_id);
-			break;
-		case STATIC_IFNAME:
-			nexthop = route_entry_nexthop_ifindex_add(
-				re, si->ifindex, si->nh_vrf_id);
-			break;
-		case STATIC_BLACKHOLE:
-			nexthop =
-				route_entry_nexthop_blackhole_add(re, bh_type);
-			break;
-		case STATIC_IPV6_GATEWAY:
-			nexthop = route_entry_nexthop_ipv6_add(
-				re, &si->addr.ipv6, si->nh_vrf_id);
-			nh_p.family = AF_INET6;
-			nh_p.prefixlen = IPV6_MAX_BITLEN;
-			nh_p.u.prefix6 = si->addr.ipv6;
-			zebra_register_rnh_static_nh(si->nh_vrf_id, &nh_p, rn);
-			break;
-		case STATIC_IPV6_GATEWAY_IFNAME:
-			nexthop = route_entry_nexthop_ipv6_ifindex_add(
-				re, &si->addr.ipv6, si->ifindex, si->nh_vrf_id);
-			break;
-		}
-		/* Update label(s), if present. */
-		if (si->snh_label.num_labels)
-			nexthop_add_labels(nexthop, ZEBRA_LSP_STATIC,
-					   si->snh_label.num_labels,
-					   &si->snh_label.label[0]);
-
-		if (IS_ZEBRA_DEBUG_RIB) {
-			char buf[INET6_ADDRSTRLEN];
-			if (IS_ZEBRA_DEBUG_RIB) {
-				inet_ntop(p->family, &p->u.prefix, buf,
-					  INET6_ADDRSTRLEN);
-				zlog_debug(
-					"%u:%s/%d: Modifying route rn %p, re %p (type %d)",
-					si->vrf_id, buf, p->prefixlen, rn, re,
-					re->type);
-			}
-		}
-
-		re->uptime = time(NULL);
-		/* Schedule route for processing or invoke NHT, as appropriate.
-		 */
-		if (si->type == STATIC_IPV4_GATEWAY
-		    || si->type == STATIC_IPV6_GATEWAY)
-			zebra_evaluate_rnh(si->nh_vrf_id, nh_p.family, 1,
-					   RNH_NEXTHOP_TYPE, &nh_p);
-		else
-			rib_queue_add(rn);
-	} else {
-		/* This is new static route. */
-		re = XCALLOC(MTYPE_RE, sizeof(struct route_entry));
-
-		re->type = ZEBRA_ROUTE_STATIC;
-		re->instance = 0;
-		re->distance = si->distance;
-		re->metric = 0;
-		re->mtu = 0;
-		re->vrf_id = si->vrf_id;
-		if (!vrf_is_backend_netns()) {
-			re->table =
-				(si->vrf_id != VRF_DEFAULT)
-				? (zebra_vrf_lookup_by_id(si->vrf_id))->table_id
-				: zebrad.rtm_table_default;
-		} else {
-			struct zebra_vrf *zvrf = zebra_vrf_lookup_by_id(si->vrf_id);
-
-			if (zvrf->table_id != RT_TABLE_MAIN ||
-			    zvrf->table_id != zebrad.rtm_table_default)
-				re->table = zvrf->table_id;
-			else
-				re->table = zebrad.rtm_table_default;
-		}
-		re->nexthop_num = 0;
-		re->tag = si->tag;
-
-		switch (si->type) {
-		case STATIC_IPV4_GATEWAY:
-			nexthop = route_entry_nexthop_ipv4_add(
-				re, &si->addr.ipv4, NULL, si->nh_vrf_id);
-			nh_p.family = AF_INET;
-			nh_p.prefixlen = IPV4_MAX_BITLEN;
-			nh_p.u.prefix4 = si->addr.ipv4;
-			zebra_register_rnh_static_nh(si->nh_vrf_id, &nh_p, rn);
-			break;
-		case STATIC_IPV4_GATEWAY_IFNAME:
-			nexthop = route_entry_nexthop_ipv4_ifindex_add(
-				re, &si->addr.ipv4, NULL, si->ifindex,
-				si->nh_vrf_id);
-			break;
-		case STATIC_IFNAME:
-			nexthop = route_entry_nexthop_ifindex_add(
-				re, si->ifindex, si->nh_vrf_id);
-			break;
-		case STATIC_BLACKHOLE:
-			nexthop =
-				route_entry_nexthop_blackhole_add(re, bh_type);
-			break;
-		case STATIC_IPV6_GATEWAY:
-			nexthop = route_entry_nexthop_ipv6_add(
-				re, &si->addr.ipv6, si->nh_vrf_id);
-			nh_p.family = AF_INET6;
-			nh_p.prefixlen = IPV6_MAX_BITLEN;
-			nh_p.u.prefix6 = si->addr.ipv6;
-			zebra_register_rnh_static_nh(si->nh_vrf_id, &nh_p, rn);
-			break;
-		case STATIC_IPV6_GATEWAY_IFNAME:
-			nexthop = route_entry_nexthop_ipv6_ifindex_add(
-				re, &si->addr.ipv6, si->ifindex, si->nh_vrf_id);
-			break;
-		}
-		/* Update label(s), if present. */
-		if (si->snh_label.num_labels)
-			nexthop_add_labels(nexthop, ZEBRA_LSP_STATIC,
-					   si->snh_label.num_labels,
-					   &si->snh_label.label[0]);
-
-		if (IS_ZEBRA_DEBUG_RIB) {
-			char buf[INET6_ADDRSTRLEN];
-			if (IS_ZEBRA_DEBUG_RIB) {
-				inet_ntop(p->family, &p->u.prefix, buf,
-					  INET6_ADDRSTRLEN);
-				zlog_debug(
-					"%u:%s/%d: Inserting route rn %p, re %p (type %d)",
-					si->vrf_id, buf, p->prefixlen, rn, re,
-					re->type);
-			}
-		}
-		re->uptime = time(NULL);
-		/* Link this re to the tree. Schedule for processing or invoke
-		 * NHT,
-		 * as appropriate.
-		 */
-		if (si->type == STATIC_IPV4_GATEWAY
-		    || si->type == STATIC_IPV6_GATEWAY) {
-			rib_addnode(rn, re, 0);
-			zebra_evaluate_rnh(si->nh_vrf_id, nh_p.family, 1,
-					   RNH_NEXTHOP_TYPE, &nh_p);
-		} else
-			rib_addnode(rn, re, 1);
-	}
-}
-
-/* this works correctly with IFNAME<>IFINDEX because a static route on a
- * non-active interface will have IFINDEX_INTERNAL and thus compare false
- */
-static int static_nexthop_same(struct nexthop *nexthop, struct static_route *si)
-{
-	if (nexthop->type == NEXTHOP_TYPE_BLACKHOLE
-	    && si->type == STATIC_BLACKHOLE)
-		return 1;
-
-	if (nexthop->type == NEXTHOP_TYPE_IPV4
-	    && si->type == STATIC_IPV4_GATEWAY
-	    && IPV4_ADDR_SAME(&nexthop->gate.ipv4, &si->addr.ipv4))
-		return 1;
-	else if (nexthop->type == NEXTHOP_TYPE_IPV4_IFINDEX
-		 && si->type == STATIC_IPV4_GATEWAY_IFNAME
-		 && IPV4_ADDR_SAME(&nexthop->gate.ipv4, &si->addr.ipv4)
-		 && nexthop->ifindex == si->ifindex)
-		return 1;
-	else if (nexthop->type == NEXTHOP_TYPE_IFINDEX
-		 && si->type == STATIC_IFNAME
-		 && nexthop->ifindex == si->ifindex)
-		return 1;
-	else if (nexthop->type == NEXTHOP_TYPE_IPV6
-		 && si->type == STATIC_IPV6_GATEWAY
-		 && IPV6_ADDR_SAME(&nexthop->gate.ipv6, &si->addr.ipv6))
-		return 1;
-	else if (nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX
-		 && si->type == STATIC_IPV6_GATEWAY_IFNAME
-		 && IPV6_ADDR_SAME(&nexthop->gate.ipv6, &si->addr.ipv6)
-		 && nexthop->ifindex == si->ifindex)
-		return 1;
-
-	return 0;
-}
-
-/* Uninstall static route from RIB. */
-void static_uninstall_route(afi_t afi, safi_t safi, const struct prefix *p,
-			    const struct prefix_ipv6 *src_p,
-			    struct static_route *si)
-{
-	struct route_node *rn;
-	struct route_entry *re;
-	struct nexthop *nexthop;
-	struct route_table *table;
-	struct prefix nh_p;
-
-	/* Lookup table.  */
-	table = zebra_vrf_table_with_table_id(afi, safi,
-					      si->vrf_id,
-					      si->table_id);
-	if (!table)
-		return;
-
-	/* Lookup existing route with type and distance. */
-	rn = srcdest_rnode_lookup(table, p, src_p);
-	if (!rn)
-		return;
-
-	RNODE_FOREACH_RE (rn, re) {
-		if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED))
-			continue;
-
-		if (re->type == ZEBRA_ROUTE_STATIC
-		    && re->distance == si->distance && re->tag == si->tag)
-			break;
-	}
-
-	if (!re) {
-		route_unlock_node(rn);
-		return;
-	}
-
-	/* Lookup nexthop. */
-	for (nexthop = re->ng.nexthop; nexthop; nexthop = nexthop->next)
-		if (static_nexthop_same(nexthop, si))
-			break;
-
-	/* Can't find nexthop. */
-	if (!nexthop) {
-		route_unlock_node(rn);
-		return;
-	}
-
-	/* Check nexthop. */
-	if (re->nexthop_num == 1)
-		rib_delnode(rn, re);
-	else {
-		/* Mark this nexthop as inactive and reinstall the route. Then,
-		 * delete
-		 * the nexthop. There is no need to re-evaluate the route for
-		 * this
-		 * scenario.
-		 */
-		if (IS_ZEBRA_DEBUG_RIB) {
-			char buf[INET6_ADDRSTRLEN];
-			if (IS_ZEBRA_DEBUG_RIB) {
-				inet_ntop(p->family, &p->u.prefix, buf,
-					  INET6_ADDRSTRLEN);
-				zlog_debug(
-					"%u:%s/%d: Modifying route rn %p, re %p (type %d)",
-					si->vrf_id, buf, p->prefixlen, rn, re,
-					re->type);
-			}
-		}
-		UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE);
-		if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB)) {
-			rib_dest_t *dest = rib_dest_from_rnode(rn);
-
-			/* If there are other active nexthops, do an update. */
-			if (re->nexthop_active_num > 1) {
-				/* Update route in kernel if it's in fib */
-				if (dest->selected_fib)
-					rib_install_kernel(rn, re, re);
-				/* Update redistribution if it's selected */
-				if (CHECK_FLAG(re->flags, ZEBRA_FLAG_SELECTED))
-					redistribute_update(
-						p, (struct prefix *)src_p, re,
-						NULL);
-			} else {
-				/* Remove from redistribute if selected route
-				 * becomes inactive */
-				if (CHECK_FLAG(re->flags, ZEBRA_FLAG_SELECTED))
-					redistribute_delete(
-						p, (struct prefix *)src_p, re);
-				/* Remove from kernel if fib route becomes
-				 * inactive */
-				if (dest->selected_fib)
-					rib_uninstall_kernel(rn, re);
-			}
-		}
-
-		if (afi == AFI_IP) {
-			/* Delete the nexthop and dereg from NHT */
-			nh_p.family = AF_INET;
-			nh_p.prefixlen = IPV4_MAX_BITLEN;
-			nh_p.u.prefix4 = nexthop->gate.ipv4;
-		} else {
-			nh_p.family = AF_INET6;
-			nh_p.prefixlen = IPV6_MAX_BITLEN;
-			nh_p.u.prefix6 = nexthop->gate.ipv6;
-		}
-		route_entry_nexthop_delete(re, nexthop);
-		zebra_deregister_rnh_static_nh(si->nh_vrf_id, &nh_p, rn);
-		nexthop_free(nexthop);
-	}
-	/* Unlock node. */
-	route_unlock_node(rn);
-}
-
-int static_add_route(afi_t afi, safi_t safi, uint8_t type, struct prefix *p,
-		     struct prefix_ipv6 *src_p, union g_addr *gate,
-		     const char *ifname, enum static_blackhole_type bh_type,
-		     route_tag_t tag, uint8_t distance, struct zebra_vrf *zvrf,
-		     struct zebra_vrf *nh_zvrf,
-		     struct static_nh_label *snh_label,
-		     uint32_t table_id)
-{
-	struct route_node *rn;
-	struct static_route *si;
-	struct static_route *pp;
-	struct static_route *cp;
-	struct static_route *update = NULL;
-	struct route_table *stable = zvrf->stable[afi][safi];
-
-	if (!stable)
-		return -1;
-
-	if (!gate && (type == STATIC_IPV4_GATEWAY
-		      || type == STATIC_IPV4_GATEWAY_IFNAME
-		      || type == STATIC_IPV6_GATEWAY
-		      || type == STATIC_IPV6_GATEWAY_IFNAME))
-		return -1;
-
-	if (!ifname
-	    && (type == STATIC_IFNAME || type == STATIC_IPV4_GATEWAY_IFNAME
-		|| type == STATIC_IPV6_GATEWAY_IFNAME))
-		return -1;
-
-	/* Lookup static route prefix. */
-	rn = srcdest_rnode_get(stable, p, src_p);
-
-	/* Do nothing if there is a same static route.  */
-	for (si = rn->info; si; si = si->next) {
-		if (type == si->type
-		    && (!gate
-			|| ((afi == AFI_IP
-			     && IPV4_ADDR_SAME(&gate->ipv4, &si->addr.ipv4))
-			    || (afi == AFI_IP6
-				&& IPV6_ADDR_SAME(gate, &si->addr.ipv6))))
-		    && (!strcmp(ifname ? ifname : "", si->ifname))) {
-			if ((distance == si->distance) && (tag == si->tag)
-			    && !memcmp(&si->snh_label, snh_label,
-				       sizeof(struct static_nh_label))
-			    && si->bh_type == bh_type) {
-				route_unlock_node(rn);
-				return 0;
-			} else
-				update = si;
-		}
-	}
-
-	/* Distance or tag or label changed, delete existing first. */
-	if (update)
-		static_delete_route(afi, safi, type, p, src_p, gate, ifname,
-				    update->tag, update->distance, zvrf,
-				    &update->snh_label, table_id);
-
-	/* Make new static route structure. */
-	si = XCALLOC(MTYPE_STATIC_ROUTE, sizeof(struct static_route));
-
-	si->type = type;
-	si->distance = distance;
-	si->bh_type = bh_type;
-	si->tag = tag;
-	si->vrf_id = zvrf_id(zvrf);
-	si->nh_vrf_id = zvrf_id(nh_zvrf);
-	strcpy(si->nh_vrfname, nh_zvrf->vrf->name);
-	si->table_id = table_id;
-
-	if (ifname)
-		strlcpy(si->ifname, ifname, sizeof(si->ifname));
-	si->ifindex = IFINDEX_INTERNAL;
-
-	switch (type) {
-	case STATIC_IPV4_GATEWAY:
-	case STATIC_IPV4_GATEWAY_IFNAME:
-		si->addr.ipv4 = gate->ipv4;
-		break;
-	case STATIC_IPV6_GATEWAY:
-	case STATIC_IPV6_GATEWAY_IFNAME:
-		si->addr.ipv6 = gate->ipv6;
-		break;
-	case STATIC_IFNAME:
-		break;
-	}
-
-	/* Save labels, if any. */
-	memcpy(&si->snh_label, snh_label, sizeof(struct static_nh_label));
-
-	/* Add new static route information to the tree with sort by
-	   distance value and gateway address. */
-	for (pp = NULL, cp = rn->info; cp; pp = cp, cp = cp->next) {
-		if (si->distance < cp->distance)
-			break;
-		if (si->distance > cp->distance)
-			continue;
-		if (si->type == STATIC_IPV4_GATEWAY
-		    && cp->type == STATIC_IPV4_GATEWAY) {
-			if (ntohl(si->addr.ipv4.s_addr)
-			    < ntohl(cp->addr.ipv4.s_addr))
-				break;
-			if (ntohl(si->addr.ipv4.s_addr)
-			    > ntohl(cp->addr.ipv4.s_addr))
-				continue;
-		}
-	}
-
-	/* Make linked list. */
-	if (pp)
-		pp->next = si;
-	else
-		rn->info = si;
-	if (cp)
-		cp->prev = si;
-	si->prev = pp;
-	si->next = cp;
-
-	/* check whether interface exists in system & install if it does */
-	if (!ifname)
-		static_install_route(afi, safi, p, src_p, si);
-	else {
-		struct interface *ifp;
-
-		ifp = if_lookup_by_name(ifname, zvrf_id(nh_zvrf));
-		if (ifp && ifp->ifindex != IFINDEX_INTERNAL) {
-			si->ifindex = ifp->ifindex;
-			static_install_route(afi, safi, p, src_p, si);
-		} else
-			zlog_warn("Static Route using %s interface not installed because the interface does not exist in specified vrf",
-				  ifname);
-	}
-
-	return 1;
-}
-
-int static_delete_route(afi_t afi, safi_t safi, uint8_t type, struct prefix *p,
-			struct prefix_ipv6 *src_p, union g_addr *gate,
-			const char *ifname, route_tag_t tag, uint8_t distance,
-			struct zebra_vrf *zvrf,
-			struct static_nh_label *snh_label,
-			uint32_t table_id)
-{
-	struct route_node *rn;
-	struct static_route *si;
-	struct route_table *stable;
-
-	/* Lookup table.  */
-	stable = zebra_vrf_static_table(afi, safi, zvrf);
-	if (!stable)
-		return -1;
-
-	/* Lookup static route prefix. */
-	rn = srcdest_rnode_lookup(stable, p, src_p);
-	if (!rn)
-		return 0;
-
-	/* Find same static route is the tree */
-	for (si = rn->info; si; si = si->next)
-		if (type == si->type
-		    && (!gate
-			|| ((afi == AFI_IP
-			     && IPV4_ADDR_SAME(&gate->ipv4, &si->addr.ipv4))
-			    || (afi == AFI_IP6
-				&& IPV6_ADDR_SAME(gate, &si->addr.ipv6))))
-		    && (!strcmp(ifname ? ifname : "", si->ifname))
-		    && (!tag || (tag == si->tag))
-		    && (table_id == si->table_id)
-		    && (!snh_label->num_labels
-			|| !memcmp(&si->snh_label, snh_label,
-				   sizeof(struct static_nh_label))))
-			break;
-
-	/* Can't find static route. */
-	if (!si) {
-		route_unlock_node(rn);
-		return 0;
-	}
-
-	/* Uninstall from rib. */
-	if (!si->ifname[0] || si->ifindex != IFINDEX_INTERNAL)
-		static_uninstall_route(afi, safi, p, src_p, si);
-
-	/* Unlink static route from linked list. */
-	if (si->prev)
-		si->prev->next = si->next;
-	else
-		rn->info = si->next;
-	if (si->next)
-		si->next->prev = si->prev;
-	route_unlock_node(rn);
-
-	/* Free static route configuration. */
-	XFREE(MTYPE_STATIC_ROUTE, si);
-
-	route_unlock_node(rn);
-
-	return 1;
-}
-
-static void static_ifindex_update_af(struct interface *ifp, bool up, afi_t afi,
-				     safi_t safi)
-{
-	struct route_table *stable;
-	struct route_node *rn;
-	struct static_route *si;
-	const struct prefix *p, *src_pp;
-	struct prefix_ipv6 *src_p;
-	struct vrf *vrf;
-
-	RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
-		struct zebra_vrf *zvrf;
-
-		zvrf = vrf->info;
-
-		stable = zebra_vrf_static_table(afi, safi, zvrf);
-		if (!stable)
-			continue;
-
-		for (rn = route_top(stable); rn; rn = srcdest_route_next(rn)) {
-			srcdest_rnode_prefixes(rn, &p, &src_pp);
-			src_p = (struct prefix_ipv6 *)src_pp;
-
-			for (si = rn->info; si; si = si->next) {
-				if (!si->ifname[0])
-					continue;
-				if (up) {
-					if (strcmp(si->ifname, ifp->name))
-						continue;
-					si->ifindex = ifp->ifindex;
-					static_install_route(afi, safi, p, src_p, si);
-				} else {
-					if (si->ifindex != ifp->ifindex)
-						continue;
-					static_uninstall_route(afi, safi, p, src_p, si);
-					si->ifindex = IFINDEX_INTERNAL;
-				}
-			}
-		}
-	}
-}
-
-/*
- * This function looks at a zvrf's stable and notices if any of the
- * nexthops we are using are part of the vrf coming up.
- * If we are using them then cleanup the nexthop vrf id
- * to be the new value and then re-installs them
- *
- *
- * stable -> The table we are looking at.
- * zvrf -> The newly changed vrf.
- * afi -> The afi to look at
- * safi -> the safi to look at
- */
-static void static_fixup_vrf(struct zebra_vrf *zvrf,
-			     struct route_table *stable, afi_t afi, safi_t safi)
-{
-	struct route_node *rn;
-	struct static_route *si;
-	struct interface *ifp;
-
-	for (rn = route_top(stable); rn; rn = route_next(rn)) {
-		for (si = rn->info; si; si = si->next) {
-			if (strcmp(zvrf->vrf->name, si->nh_vrfname) != 0)
-				continue;
-
-			si->nh_vrf_id = zvrf->vrf->vrf_id;
-			if (si->ifindex) {
-				ifp = if_lookup_by_name(si->ifname,
-							si->nh_vrf_id);
-				if (ifp)
-					si->ifindex = ifp->ifindex;
-				else
-					continue;
-			}
-			static_install_route(afi, safi, &rn->p, NULL, si);
-		}
-	}
-}
-
-/*
- * This function enables static routes in a zvrf as it
- * is coming up.  It sets the new vrf_id as appropriate.
- *
- * zvrf -> The zvrf that is being brought up and enabled by the kernel
- * stable -> The stable we are looking at.
- * afi -> the afi in question
- * safi -> the safi in question
- */
-static void static_enable_vrf(struct zebra_vrf *zvrf,
-			      struct route_table *stable,
-			      afi_t afi, safi_t safi)
-{
-	struct route_node *rn;
-	struct static_route *si;
-	struct interface *ifp;
-	struct vrf *vrf = zvrf->vrf;
-
-	for (rn = route_top(stable); rn; rn = route_next(rn)) {
-		for (si = rn->info; si; si = si->next) {
-			si->vrf_id = vrf->vrf_id;
-			if (si->ifindex) {
-				ifp = if_lookup_by_name(si->ifname,
-							si->nh_vrf_id);
-				if (ifp)
-					si->ifindex = ifp->ifindex;
-				else
-					continue;
-			}
-			static_install_route(afi, safi, &rn->p, NULL, si);
-		}
-	}
-}
-
-/*
- * When a vrf is being enabled by the kernel, go through all the
- * static routes in the system that use this vrf (both nexthops vrfs
- * and the routes vrf )
- *
- * enable_zvrf -> the vrf being enabled
- */
-void static_fixup_vrf_ids(struct zebra_vrf *enable_zvrf)
-{
-	struct route_table *stable;
-	struct vrf *vrf;
-	afi_t afi;
-	safi_t safi;
-
-	RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
-		struct zebra_vrf *zvrf;
-
-		zvrf = vrf->info;
-		/* Install any static routes configured for this VRF. */
-		for (afi = AFI_IP; afi < AFI_MAX; afi++) {
-			for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) {
-				stable = zvrf->stable[afi][safi];
-				if (!stable)
-					continue;
-
-				static_fixup_vrf(enable_zvrf, stable,
-						 afi, safi);
-
-				if (enable_zvrf == zvrf)
-					static_enable_vrf(zvrf, stable,
-							  afi, safi);
-			}
-		}
-	}
-}
-
-/*
- * Look at the specified stable and if any of the routes in
- * this table are using the zvrf as the nexthop, uninstall
- * those routes.
- *
- * zvrf -> the vrf being disabled
- * stable -> the table we need to look at.
- * afi -> the afi in question
- * safi -> the safi in question
- */
-static void static_cleanup_vrf(struct zebra_vrf *zvrf,
-			       struct route_table *stable,
-			       afi_t afi, safi_t safi)
-{
-	struct route_node *rn;
-	struct static_route *si;
-
-	for (rn = route_top(stable); rn; rn = route_next(rn)) {
-		for (si = rn->info; si; si = si->next) {
-			if (strcmp(zvrf->vrf->name, si->nh_vrfname) != 0)
-				continue;
-
-			static_uninstall_route(afi, safi, &rn->p, NULL, si);
-		}
-	}
-}
-
-/*
- * Look at all static routes in this table and uninstall
- * them.
- *
- * stable -> The table to uninstall from
- * afi -> The afi in question
- * safi -> the safi in question
- */
-static void static_disable_vrf(struct route_table *stable,
-			       afi_t afi, safi_t safi)
-{
-	struct route_node *rn;
-	struct static_route *si;
-
-	for (rn = route_top(stable); rn; rn = route_next(rn)) {
-		for (si = rn->info; si; si = si->next) {
-			static_uninstall_route(afi, safi, &rn->p, NULL, si);
-		}
-	}
-}
-
-/*
- * When the disable_zvrf is shutdown by the kernel, we call
- * this function and it cleans up all static routes using
- * this vrf as a nexthop as well as all static routes
- * in it's stables.
- *
- * disable_zvrf - The vrf being disabled
- */
-void static_cleanup_vrf_ids(struct zebra_vrf *disable_zvrf)
-{
-	struct vrf *vrf;
-	afi_t afi;
-	safi_t safi;
-
-	RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
-		struct zebra_vrf *zvrf;
-
-		zvrf = vrf->info;
-
-		/* Uninstall any static routes configured for this VRF. */
-		for (afi = AFI_IP; afi < AFI_MAX; afi++) {
-			for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) {
-				struct route_table *stable;
-
-				stable = zvrf->stable[afi][safi];
-				if (!stable)
-					continue;
-
-				static_cleanup_vrf(disable_zvrf, stable,
-						   afi, safi);
-
-				if (disable_zvrf == zvrf)
-					static_disable_vrf(stable, afi, safi);
-			}
-		}
-	}
-}
-
-/* called from if_{add,delete}_update, i.e. when ifindex becomes [in]valid */
-void static_ifindex_update(struct interface *ifp, bool up)
-{
-	static_ifindex_update_af(ifp, up, AFI_IP, SAFI_UNICAST);
-	static_ifindex_update_af(ifp, up, AFI_IP, SAFI_MULTICAST);
-	static_ifindex_update_af(ifp, up, AFI_IP6, SAFI_UNICAST);
-	static_ifindex_update_af(ifp, up, AFI_IP6, SAFI_MULTICAST);
-}