+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Static NHT code.
* Copyright (C) 2018 Cumulus Networks, Inc.
* Donald Sharp
- *
- * 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
*/
#include <zebra.h>
#include "static_zebra.h"
#include "static_nht.h"
-static void static_nht_update_rn(struct route_node *rn,
- struct prefix *nhp, uint32_t nh_num,
- vrf_id_t nh_vrf_id, struct vrf *vrf,
- safi_t safi)
+static void static_nht_update_path(struct static_path *pn, struct prefix *nhp,
+ uint32_t nh_num, vrf_id_t nh_vrf_id,
+ struct vrf *vrf)
{
- struct static_route *si;
+ struct static_nexthop *nh;
- for (si = rn->info; si; si = si->next) {
- if (si->nh_vrf_id != nh_vrf_id)
+ frr_each(static_nexthop_list, &pn->nexthop_list, nh) {
+ if (nh->nh_vrf_id != nh_vrf_id)
continue;
- if (si->type != STATIC_IPV4_GATEWAY
- && si->type != STATIC_IPV4_GATEWAY_IFNAME
- && si->type != STATIC_IPV6_GATEWAY
- && si->type != STATIC_IPV6_GATEWAY_IFNAME)
+ if (nh->type != STATIC_IPV4_GATEWAY
+ && nh->type != STATIC_IPV4_GATEWAY_IFNAME
+ && nh->type != STATIC_IPV6_GATEWAY
+ && nh->type != STATIC_IPV6_GATEWAY_IFNAME)
continue;
if (nhp->family == AF_INET
- && nhp->u.prefix4.s_addr == si->addr.ipv4.s_addr)
- si->nh_valid = !!nh_num;
+ && nhp->u.prefix4.s_addr == nh->addr.ipv4.s_addr)
+ nh->nh_valid = !!nh_num;
if (nhp->family == AF_INET6
- && memcmp(&nhp->u.prefix6, &si->addr.ipv6, 16) == 0)
- si->nh_valid = !!nh_num;
+ && memcmp(&nhp->u.prefix6, &nh->addr.ipv6, IPV6_MAX_BYTELEN)
+ == 0)
+ nh->nh_valid = !!nh_num;
- if (si->state == STATIC_START)
- static_zebra_route_add(rn, si, vrf->vrf_id, safi, true);
+ if (nh->state == STATIC_START)
+ static_zebra_route_add(pn, true);
}
}
struct route_table *stable;
struct static_vrf *svrf;
struct route_node *rn;
+ struct static_path *pn;
+ struct static_route_info *si;
svrf = vrf->info;
if (!svrf)
if (sp) {
rn = srcdest_rnode_lookup(stable, sp, NULL);
- if (rn) {
- static_nht_update_rn(rn, nhp, nh_num, nh_vrf_id,
- vrf, safi);
+ if (rn && rn->info) {
+ si = static_route_info_from_rnode(rn);
+ frr_each(static_path_list, &si->path_list, pn) {
+ static_nht_update_path(pn, nhp, nh_num,
+ nh_vrf_id, vrf);
+ }
route_unlock_node(rn);
}
return;
}
- for (rn = route_top(stable); rn; rn = route_next(rn))
- static_nht_update_rn(rn, nhp, nh_num, nh_vrf_id, vrf, safi);
-
+ for (rn = route_top(stable); rn; rn = route_next(rn)) {
+ si = static_route_info_from_rnode(rn);
+ if (!si)
+ continue;
+ frr_each(static_path_list, &si->path_list, pn) {
+ static_nht_update_path(pn, nhp, nh_num, nh_vrf_id, vrf);
+ }
+ }
}
-void static_nht_update(struct prefix *sp, struct prefix *nhp,
- uint32_t nh_num, afi_t afi, vrf_id_t nh_vrf_id)
+void static_nht_update(struct prefix *sp, struct prefix *nhp, uint32_t nh_num,
+ afi_t afi, safi_t safi, vrf_id_t nh_vrf_id)
{
struct vrf *vrf;
- RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
- static_nht_update_safi(sp, nhp, nh_num, afi, SAFI_UNICAST,
- vrf, nh_vrf_id);
- static_nht_update_safi(sp, nhp, nh_num, afi, SAFI_MULTICAST,
- vrf, nh_vrf_id);
- }
+ RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name)
+ static_nht_update_safi(sp, nhp, nh_num, afi, safi, vrf,
+ nh_vrf_id);
}
static void static_nht_reset_start_safi(struct prefix *nhp, afi_t afi,
{
struct static_vrf *svrf;
struct route_table *stable;
- struct static_route *si;
+ struct static_nexthop *nh;
+ struct static_path *pn;
struct route_node *rn;
+ struct static_route_info *si;
svrf = vrf->info;
if (!svrf)
return;
for (rn = route_top(stable); rn; rn = route_next(rn)) {
- for (si = rn->info; si; si = si->next) {
- if (si->nh_vrf_id != nh_vrf_id)
- continue;
-
- if (nhp->family == AF_INET
- && nhp->u.prefix4.s_addr != si->addr.ipv4.s_addr)
- continue;
-
- if (nhp->family == AF_INET6
- && memcmp(&nhp->u.prefix6, &si->addr.ipv6, 16) != 0)
- continue;
-
- /*
- * We've been told that a nexthop we depend
- * on has changed in some manner, so reset
- * the state machine to allow us to start
- * over.
- */
- si->state = STATIC_START;
+ si = static_route_info_from_rnode(rn);
+ if (!si)
+ continue;
+ frr_each(static_path_list, &si->path_list, pn) {
+ frr_each(static_nexthop_list, &pn->nexthop_list, nh) {
+ if (nh->nh_vrf_id != nh_vrf_id)
+ continue;
+
+ if (nhp->family == AF_INET
+ && nhp->u.prefix4.s_addr
+ != nh->addr.ipv4.s_addr)
+ continue;
+
+ if (nhp->family == AF_INET6
+ && memcmp(&nhp->u.prefix6, &nh->addr.ipv6,
+ 16)
+ != 0)
+ continue;
+
+ /*
+ * We've been told that a nexthop we
+ * depend on has changed in some manner,
+ * so reset the state machine to allow
+ * us to start over.
+ */
+ nh->state = STATIC_START;
+ }
}
}
}
-void static_nht_reset_start(struct prefix *nhp, afi_t afi, vrf_id_t nh_vrf_id)
+void static_nht_reset_start(struct prefix *nhp, afi_t afi, safi_t safi,
+ vrf_id_t nh_vrf_id)
{
struct vrf *vrf;
- RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
- static_nht_reset_start_safi(nhp, afi, SAFI_UNICAST,
- vrf, nh_vrf_id);
- static_nht_reset_start_safi(nhp, afi, SAFI_MULTICAST,
- vrf, nh_vrf_id);
- }
+ RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name)
+ static_nht_reset_start_safi(nhp, afi, safi, vrf, nh_vrf_id);
}
static void static_nht_mark_state_safi(struct prefix *sp, afi_t afi,
{
struct static_vrf *svrf;
struct route_table *stable;
- struct static_route *si;
struct route_node *rn;
+ struct static_nexthop *nh;
+ struct static_path *pn;
+ struct static_route_info *si;
svrf = vrf->info;
if (!svrf)
rn = srcdest_rnode_lookup(stable, sp, NULL);
if (!rn)
return;
-
- for (si = rn->info; si; si = si->next)
- si->state = state;
+ si = rn->info;
+ if (si) {
+ frr_each(static_path_list, &si->path_list, pn) {
+ frr_each(static_nexthop_list, &pn->nexthop_list, nh) {
+ nh->state = state;
+ }
+ }
+ }
route_unlock_node(rn);
}
-void static_nht_mark_state(struct prefix *sp, vrf_id_t vrf_id,
+void static_nht_mark_state(struct prefix *sp, safi_t safi, vrf_id_t vrf_id,
enum static_install_states state)
{
struct vrf *vrf;
if (!vrf || !vrf->info)
return;
- static_nht_mark_state_safi(sp, afi, SAFI_UNICAST, vrf, state);
- static_nht_mark_state_safi(sp, afi, SAFI_MULTICAST, vrf, state);
+ static_nht_mark_state_safi(sp, afi, safi, vrf, state);
}
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