On Thu, Nov 23, 2023 at 4:15 PM Dumitru Ceara <dce...@redhat.com> wrote:
>
> On 10/26/23 20:15, num...@ovn.org wrote:
> > From: Numan Siddique <num...@ovn.org>
> >
> > Previous commits added new engine nodes to store logical router's lb
> > and NAT data. Make use of the data stored by these engine nodes
> > to generate logical flows related to router's LBs and NATs.
> >
> > Signed-off-by: Numan Siddique <num...@ovn.org>
> > ---
> > northd/en-lflow.c | 3 -
> > northd/en-lr-lb-nat-data.h | 4 +
> > northd/inc-proc-northd.c | 1 -
> > northd/northd.c | 752 ++++++++++++++++++++++++-------------
> > northd/northd.h | 1 -
> > 5 files changed, 496 insertions(+), 265 deletions(-)
> >
> > diff --git a/northd/en-lflow.c b/northd/en-lflow.c
> > index 9cb0ead3f0..229f4be1d0 100644
> > --- a/northd/en-lflow.c
> > +++ b/northd/en-lflow.c
> > @@ -42,8 +42,6 @@ lflow_get_input_data(struct engine_node *node,
> > engine_get_input_data("port_group", node);
> > struct sync_meters_data *sync_meters_data =
> > engine_get_input_data("sync_meters", node);
> > - struct ed_type_lr_nat_data *lr_nat_data =
> > - engine_get_input_data("lr_nat", node);
> > struct ed_type_lr_lb_nat_data *lr_lb_nat_data =
> > engine_get_input_data("lr_lb_nat_data", node);
> >
> > @@ -68,7 +66,6 @@ lflow_get_input_data(struct engine_node *node,
> > lflow_input->ls_ports = &northd_data->ls_ports;
> > lflow_input->lr_ports = &northd_data->lr_ports;
> > lflow_input->ls_port_groups = &pg_data->ls_port_groups;
> > - lflow_input->lr_nats = &lr_nat_data->lr_nats;
> > lflow_input->lr_lbnats = &lr_lb_nat_data->lr_lbnats;
> > lflow_input->meter_groups = &sync_meters_data->meter_groups;
> > lflow_input->lb_datapaths_map = &northd_data->lb_datapaths_map;
> > diff --git a/northd/en-lr-lb-nat-data.h b/northd/en-lr-lb-nat-data.h
> > index 9029aee339..ffe41cad73 100644
> > --- a/northd/en-lr-lb-nat-data.h
> > +++ b/northd/en-lr-lb-nat-data.h
> > @@ -56,6 +56,10 @@ struct lr_lb_nat_data_table {
> > #define LR_LB_NAT_DATA_TABLE_FOR_EACH(LR_LB_NAT_REC, TABLE) \
> > HMAP_FOR_EACH (LR_LB_NAT_REC, key_node, &(TABLE)->entries)
> >
> > +#define LR_LB_NAT_DATA_TABLE_FOR_EACH_IN_P(LR_LB_NAT_REC, JOBID, TABLE) \
> > + HMAP_FOR_EACH_IN_PARALLEL (LR_LB_NAT_REC, key_node, JOBID, \
> > + &(TABLE)->entries)
> > +
> > struct lr_lb_nat_data_tracked_data {
> > /* Created or updated logical router with LB data. */
> > struct hmapx crupdated; /* Stores 'struct lr_lb_nat_data_record'. */
> > diff --git a/northd/inc-proc-northd.c b/northd/inc-proc-northd.c
> > index 369a151fa3..84627070a8 100644
> > --- a/northd/inc-proc-northd.c
> > +++ b/northd/inc-proc-northd.c
> > @@ -228,7 +228,6 @@ void inc_proc_northd_init(struct ovsdb_idl_loop *nb,
> > engine_add_input(&en_lflow, &en_sb_igmp_group, NULL);
> > engine_add_input(&en_lflow, &en_northd, lflow_northd_handler);
> > engine_add_input(&en_lflow, &en_port_group, lflow_port_group_handler);
> > - engine_add_input(&en_lflow, &en_lr_nat, NULL);
>
> Was this supposed to go in the previous patch, the one that adds
> en_lr_lb_nat_data?
Yes. It should have been. Addressed in v3.
Thanks
>
> > engine_add_input(&en_lflow, &en_lr_lb_nat_data, NULL);
> >
> > engine_add_input(&en_sync_to_sb_addr_set, &en_nb_address_set,
> > diff --git a/northd/northd.c b/northd/northd.c
> > index 24df14c0de..1877cbc7df 100644
> > --- a/northd/northd.c
> > +++ b/northd/northd.c
> > @@ -8854,18 +8854,14 @@ build_lrouter_groups(struct hmap *lr_ports, struct
> > ovs_list *lr_list)
> > */
> > static void
> > build_lswitch_rport_arp_req_self_orig_flow(struct ovn_port *op,
> > - uint32_t priority,
> > - struct ovn_datapath *od,
> > - const struct lr_nat_table
> > *lr_nats,
> > - struct hmap *lflows)
> > + uint32_t priority,
> > + const struct ovn_datapath *od,
> > + const struct lr_nat_record
> > *lrnat_rec,
> > + struct hmap *lflows)
>
>
> Nit: indentation.
I had to do this way to keep under 80.
>
> > {
> > struct ds eth_src = DS_EMPTY_INITIALIZER;
> > struct ds match = DS_EMPTY_INITIALIZER;
> >
> > - const struct lr_nat_record *lrnat_rec = lr_nat_table_find_by_index(
> > - lr_nats, op->od->index);
> > - ovs_assert(lrnat_rec);
> > -
> > /* Self originated ARP requests/RARP/ND need to be flooded to the L2
> > domain
> > * (except on router ports). Determine that packets are self
> > originated
> > * by also matching on source MAC. Matching on ingress port is not
> > @@ -8952,7 +8948,8 @@ lrouter_port_ipv6_reachable(const struct ovn_port *op,
> > */
> > static void
> > build_lswitch_rport_arp_req_flow(const char *ips,
> > - int addr_family, struct ovn_port *patch_op, struct ovn_datapath *od,
> > + int addr_family, struct ovn_port *patch_op,
> > + const struct ovn_datapath *od,
> > uint32_t priority, struct hmap *lflows,
> > const struct ovsdb_idl_row *stage_hint)
> > {
> > @@ -8993,8 +8990,6 @@ static void
> > build_lswitch_rport_arp_req_flows(struct ovn_port *op,
> > struct ovn_datapath *sw_od,
> > struct ovn_port *sw_op,
> > - const struct lr_nat_table *lr_nats,
> > - const struct lr_lb_nat_data_table
> > *lr_lbnats,
> > struct hmap *lflows,
> > const struct ovsdb_idl_row *stage_hint)
> > {
> > @@ -9010,12 +9005,48 @@ build_lswitch_rport_arp_req_flows(struct ovn_port
> > *op,
> > * router port.
> > * Priority: 80.
> > */
> > - const struct lr_lb_nat_data_record *lr_lbnat_rec = NULL;
> > - if (op->od->nbr->n_load_balancer ||
> > op->od->nbr->n_load_balancer_group) {
> > - lr_lbnat_rec = lr_lb_nat_data_table_find_by_index(lr_lbnats,
> > - op->od->index);
> > - ovs_assert(lr_lbnat_rec);
> > + for (size_t i = 0; i < op->lrp_networks.n_ipv4_addrs; i++) {
> > + build_lswitch_rport_arp_req_flow(
> > + op->lrp_networks.ipv4_addrs[i].addr_s, AF_INET, sw_op, sw_od,
> > 80,
> > + lflows, stage_hint);
> > + }
> > + for (size_t i = 0; i < op->lrp_networks.n_ipv6_addrs; i++) {
> > + build_lswitch_rport_arp_req_flow(
> > + op->lrp_networks.ipv6_addrs[i].addr_s, AF_INET6, sw_op, sw_od,
> > 80,
> > + lflows, stage_hint);
> > + }
> > +}
> >
> > +/*
> > + * Ingress table 25: Flows that forward ARP/ND requests only to the routers
> > + * that own the addresses.
> > + * Priorities:
> > + * - 80: self originated GARPs that need to follow regular processing.
> > + * - 75: ARP requests to router owned IPs (interface IP/LB/NAT).
> > + */
> > +static void
> > +build_lswitch_rport_arp_req_flows_for_lbnats(struct ovn_port *op,
> > + const struct lr_lb_nat_data_record
> > *lr_lbnat_rec,
> > + const struct ovn_datapath *sw_od,
> > + struct ovn_port *sw_op,
> > + struct hmap *lflows,
> > + const struct ovsdb_idl_row *stage_hint)
>
> Nit: indentation.
Same here too.
>
> > +{
> > + if (!op || !op->nbrp) {
> > + return;
> > + }
> > +
> > + if (!lrport_is_enabled(op->nbrp)) {
> > + return;
> > + }
> > +
> > + ovs_assert(op->od == lr_lbnat_rec->od);
> > +
> > + /* Forward ARP requests for owned IP addresses (L3, VIP, NAT) only to
> > this
> > + * router port.
> > + * Priority: 80.
> > + */
> > + if (op->od->nbr->n_load_balancer ||
> > op->od->nbr->n_load_balancer_group) {
> > const char *ip_addr;
> > SSET_FOR_EACH (ip_addr, &lr_lbnat_rec->lb_ips->ips_v4_reachable) {
> > ovs_be32 ipv4_addr;
> > @@ -9045,17 +9076,6 @@ build_lswitch_rport_arp_req_flows(struct ovn_port
> > *op,
> > }
> > }
> >
> > - for (size_t i = 0; i < op->lrp_networks.n_ipv4_addrs; i++) {
> > - build_lswitch_rport_arp_req_flow(
> > - op->lrp_networks.ipv4_addrs[i].addr_s, AF_INET, sw_op, sw_od,
> > 80,
> > - lflows, stage_hint);
> > - }
> > - for (size_t i = 0; i < op->lrp_networks.n_ipv6_addrs; i++) {
> > - build_lswitch_rport_arp_req_flow(
> > - op->lrp_networks.ipv6_addrs[i].addr_s, AF_INET6, sw_op, sw_od,
> > 80,
> > - lflows, stage_hint);
> > - }
> > -
> > /* Self originated ARP requests/RARP/ND need to be flooded as usual.
> > *
> > * However, if the switch doesn't have any non-router ports we
> > shouldn't
> > @@ -9064,19 +9084,13 @@ build_lswitch_rport_arp_req_flows(struct ovn_port
> > *op,
> > * Priority: 75.
> > */
> > if (sw_od->n_router_ports != sw_od->nbs->n_ports) {
> > - build_lswitch_rport_arp_req_self_orig_flow(op, 75, sw_od, lr_nats,
> > + build_lswitch_rport_arp_req_self_orig_flow(op, 75, sw_od,
> > + lr_lbnat_rec->lrnat_rec,
> > lflows);
> > }
> >
> > - const struct lr_nat_record *lrnat_rec =
> > - lr_nat_table_find_by_index(lr_nats, op->od->index);
> > -
> > - if (!lrnat_rec) {
> > - return;
> > - }
> > -
> > - for (size_t i = 0; i < lrnat_rec->n_nat_entries; i++) {
> > - struct ovn_nat *nat_entry = &lrnat_rec->nat_entries[i];
> > + for (size_t i = 0; i < lr_lbnat_rec->lrnat_rec->n_nat_entries; i++) {
> > + struct ovn_nat *nat_entry =
> > &lr_lbnat_rec->lrnat_rec->nat_entries[i];
> > const struct nbrec_nat *nat = nat_entry->nb;
> >
> > if (!nat_entry_is_valid(nat_entry)) {
> > @@ -9091,15 +9105,15 @@ build_lswitch_rport_arp_req_flows(struct ovn_port
> > *op,
> > * expect ARP requests/NS for the DNAT external_ip.
> > */
> > if (nat_entry_is_v6(nat_entry)) {
> > - if (!lr_lbnat_rec ||
> > !sset_contains(&lr_lbnat_rec->lb_ips->ips_v6,
> > - nat->external_ip)) {
> > + if (!sset_contains(&lr_lbnat_rec->lb_ips->ips_v6,
> > + nat->external_ip)) {
> > build_lswitch_rport_arp_req_flow(
> > nat->external_ip, AF_INET6, sw_op, sw_od, 80, lflows,
> > stage_hint);
> > }
> > } else {
> > - if (!lr_lbnat_rec ||
> > !sset_contains(&lr_lbnat_rec->lb_ips->ips_v4,
> > - nat->external_ip)) {
> > + if (!sset_contains(&lr_lbnat_rec->lb_ips->ips_v4,
> > + nat->external_ip)) {
> > build_lswitch_rport_arp_req_flow(
> > nat->external_ip, AF_INET, sw_op, sw_od, 80, lflows,
> > stage_hint);
> > @@ -10158,12 +10172,8 @@ build_lswitch_ip_mcast_igmp_mld(struct
> > ovn_igmp_group *igmp_group,
> >
> > /* Ingress table 25: Destination lookup, unicast handling (priority 50), */
> > static void
> > -build_lswitch_ip_unicast_lookup(struct ovn_port *op,
> > - const struct lr_nat_table *lr_nats,
> > - const struct lr_lb_nat_data_table
> > *lr_lbnats,
> > - struct hmap *lflows,
> > - struct ds *actions,
> > - struct ds *match)
> > +build_lswitch_ip_unicast_lookup(struct ovn_port *op, struct hmap *lflows,
> > + struct ds *actions, struct ds *match)
> > {
> > ovs_assert(op->nbsp);
> > if (lsp_is_external(op->nbsp)) {
> > @@ -10175,8 +10185,7 @@ build_lswitch_ip_unicast_lookup(struct ovn_port *op,
> > * requests only to the router port that owns the IP address.
> > */
> > if (lsp_is_router(op->nbsp)) {
> > - build_lswitch_rport_arp_req_flows(op->peer, op->od, op, lr_nats,
> > - lr_lbnats, lflows,
> > + build_lswitch_rport_arp_req_flows(op->peer, op->od, op, lflows,
> > &op->nbsp->header_);
> > }
> >
> > @@ -10273,33 +10282,6 @@ build_lswitch_ip_unicast_lookup(struct ovn_port
> > *op,
> > S_SWITCH_IN_L2_LKUP, 50,
> > ds_cstr(match), ds_cstr(actions),
> > &op->nbsp->header_);
> > -
> > - /* Add ethernet addresses specified in NAT rules on
> > - * distributed logical routers. */
> > - if (is_l3dgw_port(op->peer)) {
> > - for (int j = 0; j < op->peer->od->nbr->n_nat; j++) {
> > - const struct nbrec_nat *nat
> > - = op->peer->od->nbr->nat[j];
> > - if (!strcmp(nat->type, "dnat_and_snat")
> > - && nat->logical_port && nat->external_mac
> > - && eth_addr_from_string(nat->external_mac, &mac)) {
> > -
> > - ds_clear(match);
> > - ds_put_format(match, "eth.dst == "ETH_ADDR_FMT
> > - " && is_chassis_resident(\"%s\")",
> > - ETH_ADDR_ARGS(mac),
> > - nat->logical_port);
> > -
> > - ds_clear(actions);
> > - ds_put_format(actions, action, op->json_key);
> > - ovn_lflow_add_with_hint(lflows, op->od,
> > - S_SWITCH_IN_L2_LKUP, 50,
> > - ds_cstr(match),
> > - ds_cstr(actions),
> > - &op->nbsp->header_);
> > - }
> > - }
> > - }
> > } else {
> > static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
> >
> > @@ -10310,6 +10292,52 @@ build_lswitch_ip_unicast_lookup(struct ovn_port
> > *op,
> > }
> > }
> >
> > +/* Ingress table 25: Destination lookup, unicast handling (priority 50), */
> > +static void
> > +build_lswitch_ip_unicast_lookup_for_nats(struct ovn_port *op,
> > + const struct lr_lb_nat_data_record
> > *lr_lbnat_rec,
> > + struct hmap *lflows, struct ds *match,
> > + struct ds *actions)
>
> Nit: indentation.
Same here too.
Normally I'd have done something like below
---
static void
build_lswitch_ip_unicast_lookup_for_nats(
struct ovn_port *op, const struct lr_stateful_record *lr_sful_rec,
struct hmap *lflows, struct ds *match, struct ds *actions)
----
But I saw a few patches in OVN indented in this way.
See commit 2a57b204459612a9a4edb49b9c5ebc44e101ee93
I've no strong preference. Let me know if you've a strong preference.
>
> > +{
> > + ovs_assert(op->nbsp);
> > +
> > + if (!op->peer || !is_l3dgw_port(op->peer)) {
> > + return;
> > + }
> > +
> > + ovs_assert(op->peer->od == lr_lbnat_rec->od);
> > +
> > + const char *action = lsp_is_enabled(op->nbsp) ?
> > + "outport = %s; output;" :
> > + debug_drop_action();
> > + struct eth_addr mac;
> > +
> > + /* Add ethernet addresses specified in NAT rules on
> > + * distributed logical routers. */
> > + for (size_t i = 0; i < lr_lbnat_rec->lrnat_rec->n_nat_entries; i++) {
> > + const struct ovn_nat *nat =
> > &lr_lbnat_rec->lrnat_rec->nat_entries[i];
> > +
> > + if (!strcmp(nat->nb->type, "dnat_and_snat")
> > + && nat->nb->logical_port && nat->nb->external_mac
> > + && eth_addr_from_string(nat->nb->external_mac, &mac)) {
> > +
> > + ds_clear(match);
> > + ds_put_format(match, "eth.dst == "ETH_ADDR_FMT
> > + " && is_chassis_resident(\"%s\")",
>
> Nit: I'd aling this with the first part of the string above, so under
> the '"'.
I missed this one. I'll address in v4.
Thanks
Numan
>
> Thanks,
> Dumitru
>
> > + ETH_ADDR_ARGS(mac),
> > + nat->nb->logical_port);
> > +
> > + ds_clear(actions);
> > + ds_put_format(actions, action, op->json_key);
> > + ovn_lflow_add_with_hint(lflows, op->od,
> > + S_SWITCH_IN_L2_LKUP, 50,
> > + ds_cstr(match),
> > + ds_cstr(actions),
> > + &op->nbsp->header_);
> > + }
> > + }
> > +}
> > +
> > struct bfd_entry {
> > struct hmap_node hmap_node;
> >
> > @@ -11691,7 +11719,7 @@ build_lrouter_nat_flows_for_lb(struct ovn_lb_vip
> > *lb_vip,
> > struct ovn_lb_datapaths *lb_dps,
> > struct ovn_northd_lb_vip *vips_nb,
> > const struct ovn_datapaths *lr_datapaths,
> > - const struct lr_nat_table *lr_nats,
> > + const struct lr_lb_nat_data_table
> > *lr_lbnats,
> > struct hmap *lflows,
> > struct ds *match, struct ds *action,
> > const struct shash *meter_groups,
> > @@ -11797,9 +11825,11 @@ build_lrouter_nat_flows_for_lb(struct ovn_lb_vip
> > *lb_vip,
> > struct ovn_datapath *od = lr_datapaths->array[index];
> > enum lrouter_nat_lb_flow_type type;
> >
> > - const struct lr_nat_record *lrnat_rec =
> > - lr_nat_table_find_by_index(lr_nats, od->index);
> > - ovs_assert(lrnat_rec);
> > + const struct lr_lb_nat_data_record *lr_lbnat_rec =
> > + lr_lb_nat_data_table_find_by_index(lr_lbnats, od->index);
> > + ovs_assert(lr_lbnat_rec);
> > +
> > + const struct lr_nat_record *lrnat_rec = lr_lbnat_rec->lrnat_rec;
> > if (lb->skip_snat) {
> > type = LROUTER_NAT_LB_FLOW_SKIP_SNAT;
> > } else if
> > (!lport_addresses_is_empty(&lrnat_rec->lb_force_snat_addrs)
> > @@ -11949,7 +11979,7 @@ build_lrouter_flows_for_lb(struct ovn_lb_datapaths
> > *lb_dps,
> > struct hmap *lflows,
> > const struct shash *meter_groups,
> > const struct ovn_datapaths *lr_datapaths,
> > - const struct lr_nat_table *lr_nats,
> > + const struct lr_lb_nat_data_table *lr_lbnats,
> > const struct chassis_features *features,
> > const struct hmap *svc_monitor_map,
> > struct ds *match, struct ds *action)
> > @@ -11965,7 +11995,7 @@ build_lrouter_flows_for_lb(struct ovn_lb_datapaths
> > *lb_dps,
> > struct ovn_lb_vip *lb_vip = &lb->vips[i];
> >
> > build_lrouter_nat_flows_for_lb(lb_vip, lb_dps, &lb->vips_nb[i],
> > - lr_datapaths, lr_nats, lflows,
> > match,
> > + lr_datapaths, lr_lbnats, lflows,
> > match,
> > action, meter_groups, features,
> > svc_monitor_map);
> >
> > @@ -12103,7 +12133,7 @@ lrouter_dnat_and_snat_is_stateless(const struct
> > nbrec_nat *nat)
> > * and action says "next" instead of ct*.
> > */
> > static inline void
> > -lrouter_nat_add_ext_ip_match(struct ovn_datapath *od,
> > +lrouter_nat_add_ext_ip_match(const struct ovn_datapath *od,
> > struct hmap *lflows, struct ds *match,
> > const struct nbrec_nat *nat,
> > bool is_v6, bool is_src, int cidr_bits)
> > @@ -12167,7 +12197,7 @@ lrouter_nat_add_ext_ip_match(struct ovn_datapath
> > *od,
> > * with the given priority.
> > */
> > static void
> > -build_lrouter_arp_flow(struct ovn_datapath *od, struct ovn_port *op,
> > +build_lrouter_arp_flow(const struct ovn_datapath *od, struct ovn_port *op,
> > const char *ip_address, const char *eth_addr,
> > struct ds *extra_match, bool drop, uint16_t
> > priority,
> > const struct ovsdb_idl_row *hint,
> > @@ -12216,7 +12246,7 @@ build_lrouter_arp_flow(struct ovn_datapath *od,
> > struct ovn_port *op,
> > * 'sn_ip_address'.
> > */
> > static void
> > -build_lrouter_nd_flow(struct ovn_datapath *od, struct ovn_port *op,
> > +build_lrouter_nd_flow(const struct ovn_datapath *od, struct ovn_port *op,
> > const char *action, const char *ip_address,
> > const char *sn_ip_address, const char *eth_addr,
> > struct ds *extra_match, bool drop, uint16_t priority,
> > @@ -12270,7 +12300,7 @@ build_lrouter_nd_flow(struct ovn_datapath *od,
> > struct ovn_port *op,
> > }
> >
> > static void
> > -build_lrouter_nat_arp_nd_flow(struct ovn_datapath *od,
> > +build_lrouter_nat_arp_nd_flow(const struct ovn_datapath *od,
> > struct ovn_nat *nat_entry,
> > struct hmap *lflows,
> > const struct shash *meter_groups)
> > @@ -12366,7 +12396,6 @@ build_lrouter_port_nat_arp_nd_flow(struct ovn_port
> > *op,
> >
> > static void
> > build_lrouter_drop_own_dest(struct ovn_port *op,
> > - const struct lr_nat_record *lrnat_rec,
> > const struct lr_lb_nat_data_record
> > *lr_lbnat_rec,
> > enum ovn_stage stage,
> > uint16_t priority, bool drop_snat_ip,
> > @@ -12378,11 +12407,10 @@ build_lrouter_drop_own_dest(struct ovn_port *op,
> > for (size_t i = 0; i < op->lrp_networks.n_ipv4_addrs; i++) {
> > const char *ip = op->lrp_networks.ipv4_addrs[i].addr_s;
> >
> > - bool router_ip_in_snat_ips = !!shash_find(&lrnat_rec->snat_ips,
> > - ip);
> > - bool router_ip_in_lb_ips = (lr_lbnat_rec &&
> > -
> > !!sset_find(&lr_lbnat_rec->lb_ips->ips_v4,
> > - ip));
> > + bool router_ip_in_snat_ips =
> > + !!shash_find(&lr_lbnat_rec->lrnat_rec->snat_ips, ip);
> > + bool router_ip_in_lb_ips =
> > + !!sset_find(&lr_lbnat_rec->lb_ips->ips_v4, ip);
> > bool drop_router_ip = (drop_snat_ip == (router_ip_in_snat_ips
> > ||
> > router_ip_in_lb_ips));
> >
> > @@ -12409,11 +12437,10 @@ build_lrouter_drop_own_dest(struct ovn_port *op,
> > for (size_t i = 0; i < op->lrp_networks.n_ipv6_addrs; i++) {
> > const char *ip = op->lrp_networks.ipv6_addrs[i].addr_s;
> >
> > - bool router_ip_in_snat_ips = !!shash_find(&lrnat_rec->snat_ips,
> > - ip);
> > - bool router_ip_in_lb_ips = (lr_lbnat_rec &&
> > -
> > !!sset_find(&lr_lbnat_rec->lb_ips->ips_v6,
> > - ip));
> > + bool router_ip_in_snat_ips =
> > + !!shash_find(&lr_lbnat_rec->lrnat_rec->snat_ips, ip);
> > + bool router_ip_in_lb_ips =
> > + !!sset_find(&lr_lbnat_rec->lb_ips->ips_v6, ip);
> > bool drop_router_ip = (drop_snat_ip == (router_ip_in_snat_ips
> > ||
> > router_ip_in_lb_ips));
> >
> > @@ -12437,7 +12464,8 @@ build_lrouter_drop_own_dest(struct ovn_port *op,
> > }
> >
> > static void
> > -build_lrouter_force_snat_flows(struct hmap *lflows, struct ovn_datapath
> > *od,
> > +build_lrouter_force_snat_flows(struct hmap *lflows,
> > + const struct ovn_datapath *od,
> > const char *ip_version, const char *ip_addr,
> > const char *context)
> > {
> > @@ -13437,8 +13465,7 @@ routable_addresses_to_lflows(struct hmap *lflows,
> > struct ovn_port *router_port,
> > /* This function adds ARP resolve flows related to a LRP. */
> > static void
> > build_arp_resolve_flows_for_lrp(
> > - struct ovn_port *op, const struct lr_nat_record *lrnat_rec,
> > - const struct lr_lb_nat_data_record *lr_lbnat_rec,
> > + struct ovn_port *op,
> > struct hmap *lflows, struct ds *match, struct ds *actions)
> > {
> > ovs_assert(op->nbrp);
> > @@ -13508,15 +13535,6 @@ build_arp_resolve_flows_for_lrp(
> > &op->nbrp->header_);
> > }
> > }
> > -
> > - /* Drop IP traffic destined to router owned IPs. Part of it is dropped
> > - * in stage "lr_in_ip_input" but traffic that could have been unSNATed
> > - * but didn't match any existing session might still end up here.
> > - *
> > - * Priority 2.
> > - */
> > - build_lrouter_drop_own_dest(op, lrnat_rec, lr_lbnat_rec,
> > - S_ROUTER_IN_ARP_RESOLVE, 2, true, lflows);
> > }
> >
> > /* This function adds ARP resolve flows related to a LSP. */
> > @@ -13524,7 +13542,6 @@ static void
> > build_arp_resolve_flows_for_lsp(
> > struct ovn_port *op, struct hmap *lflows,
> > const struct hmap *lr_ports,
> > - const struct lr_lb_nat_data_table *lr_lbnats,
> > struct ds *match, struct ds *actions)
> > {
> > ovs_assert(op->nbsp);
> > @@ -13665,15 +13682,50 @@ build_arp_resolve_flows_for_lsp(
> > ds_cstr(match), ds_cstr(actions),
> > &op->nbsp->header_);
> > }
> > + }
> > + }
> > +}
> > +
> > +static void
> > +build_arp_resolve_flows_for_lsp_routable_addresses(
> > + struct ovn_port *op, struct hmap *lflows,
> > + const struct hmap *lr_ports,
> > + const struct lr_lb_nat_data_table *lr_lbnats,
> > + struct ds *match, struct ds *actions)
> > +{
> > + if (!lsp_is_router(op->nbsp)) {
> > + return;
> > + }
> > +
> > + struct ovn_port *peer = ovn_port_get_peer(lr_ports, op);
> > + if (!peer || !peer->nbrp) {
> > + return;
> > + }
> > +
> > + if (peer->od->nbr &&
> > + smap_get_bool(&peer->od->nbr->options,
> > + "dynamic_neigh_routers", false)) {
> > + return;
> > + }
> >
> > - if (smap_get(&peer->od->nbr->options, "chassis")
> > - || peer->cr_port) {
> > - const struct lr_lb_nat_data_record *lr_lbnat_rec;
> > - lr_lbnat_rec =
> > lr_lb_nat_data_table_find_by_index(lr_lbnats,
> > + for (size_t i = 0; i < op->od->n_router_ports; i++) {
> > + struct ovn_port *router_port =
> > + ovn_port_get_peer(lr_ports, op->od->router_ports[i]);
> > + if (!router_port || !router_port->nbrp) {
> > + continue;
> > + }
> > +
> > + /* Skip the router port under consideration. */
> > + if (router_port == peer) {
> > + continue;
> > + }
> > +
> > + if (smap_get(&peer->od->nbr->options, "chassis") || peer->cr_port)
> > {
> > + const struct lr_lb_nat_data_record *lr_lbnat_rec;
> > + lr_lbnat_rec = lr_lb_nat_data_table_find_by_index(lr_lbnats,
> >
> > router_port->od->index);
> > - routable_addresses_to_lflows(lflows, router_port, peer,
> > - lr_lbnat_rec, match, actions);
> > - }
> > + routable_addresses_to_lflows(lflows, router_port, peer,
> > + lr_lbnat_rec, match, actions);
> > }
> > }
> > }
> > @@ -13850,7 +13902,6 @@ build_check_pkt_len_flows_for_lrouter(
> > static void
> > build_gateway_redirect_flows_for_lrouter(
> > struct ovn_datapath *od, struct hmap *lflows,
> > - const struct lr_nat_table *lr_nats,
> > struct ds *match, struct ds *actions)
> > {
> > ovs_assert(od->nbr);
> > @@ -13867,7 +13918,6 @@ build_gateway_redirect_flows_for_lrouter(
> > }
> >
> > const struct ovsdb_idl_row *stage_hint = NULL;
> > - bool add_def_flow = true;
> >
> > if (od->l3dgw_ports[i]->nbrp) {
> > stage_hint = &od->l3dgw_ports[i]->nbrp->header_;
> > @@ -13886,14 +13936,33 @@ build_gateway_redirect_flows_for_lrouter(
> > ovn_lflow_add_with_hint(lflows, od, S_ROUTER_IN_GW_REDIRECT, 50,
> > ds_cstr(match), ds_cstr(actions),
> > stage_hint);
> > + }
> >
> > - const struct lr_nat_record *lrnat_rec = lr_nat_table_find_by_index(
> > - lr_nats, od->index);
> > + /* Packets are allowed by default. */
> > + ovn_lflow_add(lflows, od, S_ROUTER_IN_GW_REDIRECT, 0, "1", "next;");
> > +}
> >
> > - if (!lrnat_rec) {
> > +/* Logical router ingress table GW_REDIRECT: Gateway redirect. */
> > +static void
> > +build_lr_gateway_redirect_flows_for_nats(
> > + const struct ovn_datapath *od, const struct lr_nat_record
> > *lrnat_rec,
> > + struct hmap *lflows, struct ds *match, struct ds *actions)
> > +{
> > + ovs_assert(od->nbr);
> > + for (size_t i = 0; i < od->n_l3dgw_ports; i++) {
> > + if (l3dgw_port_has_associated_vtep_lports(od->l3dgw_ports[i])) {
> > + /* Skip adding redirect lflow for vtep-enabled l3dgw ports.
> > + * Traffic from hypervisor to VTEP (ramp) switch should go in
> > + * distributed manner. Only returning routed traffic must go
> > + * through centralized gateway (or ha-chassis-group).
> > + * This assumes that attached logical switch with vtep
> > lport(s) has
> > + * no localnet port(s) for NAT. Otherwise centralized NAT will
> > not
> > + * work. */
> > continue;
> > }
> >
> > + bool add_def_flow = true;
> > +
> > for (int j = 0; j < lrnat_rec->n_nat_entries; j++) {
> > const struct ovn_nat *nat = &lrnat_rec->nat_entries[j];
> >
> > @@ -13902,6 +13971,12 @@ build_gateway_redirect_flows_for_lrouter(
> > continue;
> > }
> >
> > + const struct ovsdb_idl_row *stage_hint = NULL;
> > +
> > + if (od->l3dgw_ports[i]->nbrp) {
> > + stage_hint = &od->l3dgw_ports[i]->nbrp->header_;
> > + }
> > +
> > struct ds match_ext = DS_EMPTY_INITIALIZER;
> > struct nbrec_address_set *as = nat->nb->allowed_ext_ips
> > ? nat->nb->allowed_ext_ips : nat->nb->exempted_ext_ips;
> > @@ -13931,9 +14006,6 @@ build_gateway_redirect_flows_for_lrouter(
> > ds_destroy(&match_ext);
> > }
> > }
> > -
> > - /* Packets are allowed by default. */
> > - ovn_lflow_add(lflows, od, S_ROUTER_IN_GW_REDIRECT, 0, "1", "next;");
> > }
> >
> > /* Local router ingress table ARP_REQUEST: ARP request.
> > @@ -14332,8 +14404,8 @@ build_ipv6_input_flows_for_lrouter_port(
> > }
> >
> > static void
> > -build_lrouter_arp_nd_for_datapath(struct ovn_datapath *od,
> > - const struct lr_nat_table *lr_nats,
> > +build_lrouter_arp_nd_for_datapath(const struct ovn_datapath *od,
> > + const struct lr_nat_record *lrnat_rec,
> > struct hmap *lflows,
> > const struct shash *meter_groups)
> > {
> > @@ -14350,10 +14422,6 @@ build_lrouter_arp_nd_for_datapath(struct
> > ovn_datapath *od,
> > * port to handle the special cases. In case we get the packet
> > * on a regular port, just reply with the port's ETH address.
> > */
> > - const struct lr_nat_record *lrnat_rec = lr_nat_table_find_by_index(
> > - lr_nats, od->index);
> > - ovs_assert(lrnat_rec);
> > -
> > for (int i = 0; i < lrnat_rec->n_nat_entries; i++) {
> > struct ovn_nat *nat_entry = &lrnat_rec->nat_entries[i];
> >
> > @@ -14391,8 +14459,6 @@ build_lrouter_arp_nd_for_datapath(struct
> > ovn_datapath *od,
> > static void
> > build_lrouter_ipv4_ip_input(struct ovn_port *op,
> > struct hmap *lflows,
> > - const struct lr_nat_record *lrnat_rec,
> > - const struct lr_lb_nat_data_record
> > *lr_lbnat_rec,
> > struct ds *match, struct ds *actions,
> > const struct shash *meter_groups)
> > {
> > @@ -14517,39 +14583,6 @@ build_lrouter_ipv4_ip_input(struct ovn_port *op,
> > &op->nbrp->header_, lflows);
> > }
> >
> > - if (lr_lbnat_rec &&
> > sset_count(&lr_lbnat_rec->lb_ips->ips_v4_reachable)) {
> > - ds_clear(match);
> > - if (is_l3dgw_port(op)) {
> > - ds_put_format(match, "is_chassis_resident(%s)",
> > - op->cr_port->json_key);
> > - }
> > -
> > - /* Create a single ARP rule for all IPs that are used as VIPs. */
> > - char *lb_ips_v4_as = lr_lb_address_set_ref(op->od->tunnel_key,
> > - AF_INET);
> > - build_lrouter_arp_flow(op->od, op, lb_ips_v4_as,
> > - REG_INPORT_ETH_ADDR,
> > - match, false, 90, NULL, lflows);
> > - free(lb_ips_v4_as);
> > - }
> > -
> > - if (lr_lbnat_rec &&
> > sset_count(&lr_lbnat_rec->lb_ips->ips_v6_reachable)) {
> > - ds_clear(match);
> > -
> > - if (is_l3dgw_port(op)) {
> > - ds_put_format(match, "is_chassis_resident(%s)",
> > - op->cr_port->json_key);
> > - }
> > -
> > - /* Create a single ND rule for all IPs that are used as VIPs. */
> > - char *lb_ips_v6_as = lr_lb_address_set_ref(op->od->tunnel_key,
> > - AF_INET6);
> > - build_lrouter_nd_flow(op->od, op, "nd_na", lb_ips_v6_as, NULL,
> > - REG_INPORT_ETH_ADDR, match, false, 90,
> > - NULL, lflows, meter_groups);
> > - free(lb_ips_v6_as);
> > - }
> > -
> > if (!op->od->is_gw_router && !op->od->n_l3dgw_ports) {
> > /* UDP/TCP/SCTP port unreachable. */
> > for (int i = 0; i < op->lrp_networks.n_ipv4_addrs; i++) {
> > @@ -14624,20 +14657,55 @@ build_lrouter_ipv4_ip_input(struct ovn_port *op,
> > &op->nbrp->header_);
> > }
> > }
> > +}
> >
> > - /* Drop IP traffic destined to router owned IPs except if the IP is
> > - * also a SNAT IP. Those are dropped later, in stage
> > - * "lr_in_arp_resolve", if unSNAT was unsuccessful.
> > - *
> > - * If lrnat_rec->lb_force_snat_router_ip is true, it means the IP of
> > the
> > - * router port is also SNAT IP.
> > - *
> > - * Priority 60.
> > - */
> > - if (!lrnat_rec->lb_force_snat_router_ip) {
> > - build_lrouter_drop_own_dest(op, lrnat_rec, lr_lbnat_rec,
> > - S_ROUTER_IN_IP_INPUT, 60, false,
> > lflows);
> > +/* Logical router ingress table 3: IP Input for IPv4. */
> > +static void
> > +build_lrouter_ipv4_ip_input_for_lbnats(struct ovn_port *op,
> > + struct hmap *lflows,
> > + const struct lr_lb_nat_data_record
> > *lr_lbnat_rec,
> > + struct ds *match, const struct shash
> > *meter_groups)
> > +{
> > + ovs_assert(op->nbrp);
> > + /* No ingress packets are accepted on a chassisredirect
> > + * port, so no need to program flows for that port. */
> > + if (is_cr_port(op)) {
> > + return;
> > + }
> > +
> > + if (sset_count(&lr_lbnat_rec->lb_ips->ips_v4_reachable)) {
> > + ds_clear(match);
> > + if (is_l3dgw_port(op)) {
> > + ds_put_format(match, "is_chassis_resident(%s)",
> > + op->cr_port->json_key);
> > + }
> > +
> > + /* Create a single ARP rule for all IPs that are used as VIPs. */
> > + char *lb_ips_v4_as = lr_lb_address_set_ref(op->od->tunnel_key,
> > + AF_INET);
> > + build_lrouter_arp_flow(op->od, op, lb_ips_v4_as,
> > + REG_INPORT_ETH_ADDR,
> > + match, false, 90, NULL, lflows);
> > + free(lb_ips_v4_as);
> > }
> > +
> > + if (sset_count(&lr_lbnat_rec->lb_ips->ips_v6_reachable)) {
> > + ds_clear(match);
> > +
> > + if (is_l3dgw_port(op)) {
> > + ds_put_format(match, "is_chassis_resident(%s)",
> > + op->cr_port->json_key);
> > + }
> > +
> > + /* Create a single ND rule for all IPs that are used as VIPs. */
> > + char *lb_ips_v6_as = lr_lb_address_set_ref(op->od->tunnel_key,
> > + AF_INET6);
> > + build_lrouter_nd_flow(op->od, op, "nd_na", lb_ips_v6_as, NULL,
> > + REG_INPORT_ETH_ADDR, match, false, 90,
> > + NULL, lflows, meter_groups);
> > + free(lb_ips_v6_as);
> > + }
> > +
> > /* ARP / ND handling for external IP addresses.
> > *
> > * DNAT and SNAT IP addresses are external IP addresses that need ARP
> > @@ -14651,8 +14719,8 @@ build_lrouter_ipv4_ip_input(struct ovn_port *op,
> > return;
> > }
> >
> > - for (int i = 0; i < lrnat_rec->n_nat_entries; i++) {
> > - struct ovn_nat *nat_entry = &lrnat_rec->nat_entries[i];
> > + for (int i = 0; i < lr_lbnat_rec->lrnat_rec->n_nat_entries; i++) {
> > + struct ovn_nat *nat_entry =
> > &lr_lbnat_rec->lrnat_rec->nat_entries[i];
> >
> > /* Skip entries we failed to parse. */
> > if (!nat_entry_is_valid(nat_entry)) {
> > @@ -14671,7 +14739,7 @@ build_lrouter_ipv4_ip_input(struct ovn_port *op,
> >
> > /* Now handle SNAT entries too, one per unique SNAT IP. */
> > struct shash_node *snat_snode;
> > - SHASH_FOR_EACH (snat_snode, &lrnat_rec->snat_ips) {
> > + SHASH_FOR_EACH (snat_snode, &lr_lbnat_rec->lrnat_rec->snat_ips) {
> > struct ovn_snat_ip *snat_ip = snat_snode->data;
> >
> > if (ovs_list_is_empty(&snat_ip->snat_entries)) {
> > @@ -14687,7 +14755,7 @@ build_lrouter_ipv4_ip_input(struct ovn_port *op,
> > }
> >
> > static void
> > -build_lrouter_in_unsnat_match(struct ovn_datapath *od,
> > +build_lrouter_in_unsnat_match(const struct ovn_datapath *od,
> > const struct nbrec_nat *nat, struct ds
> > *match,
> > bool distributed_nat, bool is_v6,
> > struct ovn_port *l3dgw_port)
> > @@ -14714,7 +14782,7 @@ build_lrouter_in_unsnat_match(struct ovn_datapath
> > *od,
> >
> > static void
> > build_lrouter_in_unsnat_stateless_flow(struct hmap *lflows,
> > - struct ovn_datapath *od,
> > + const struct ovn_datapath *od,
> > const struct nbrec_nat *nat,
> > struct ds *match,
> > bool distributed_nat, bool is_v6,
> > @@ -14736,7 +14804,7 @@ build_lrouter_in_unsnat_stateless_flow(struct hmap
> > *lflows,
> >
> > static void
> > build_lrouter_in_unsnat_in_czone_flow(struct hmap *lflows,
> > - struct ovn_datapath *od,
> > + const struct ovn_datapath *od,
> > const struct nbrec_nat *nat,
> > struct ds *match, bool
> > distributed_nat,
> > bool is_v6, struct ovn_port
> > *l3dgw_port)
> > @@ -14769,7 +14837,8 @@ build_lrouter_in_unsnat_in_czone_flow(struct hmap
> > *lflows,
> > }
> >
> > static void
> > -build_lrouter_in_unsnat_flow(struct hmap *lflows, struct ovn_datapath *od,
> > +build_lrouter_in_unsnat_flow(struct hmap *lflows,
> > + const struct ovn_datapath *od,
> > const struct nbrec_nat *nat, struct ds *match,
> > bool distributed_nat, bool is_v6,
> > struct ovn_port *l3dgw_port)
> > @@ -14790,7 +14859,8 @@ build_lrouter_in_unsnat_flow(struct hmap *lflows,
> > struct ovn_datapath *od,
> > }
> >
> > static void
> > -build_lrouter_in_dnat_flow(struct hmap *lflows, struct ovn_datapath *od,
> > +build_lrouter_in_dnat_flow(struct hmap *lflows,
> > + const struct ovn_datapath *od,
> > const struct lr_nat_record *lrnat_rec,
> > const struct nbrec_nat *nat, struct ds *match,
> > struct ds *actions, bool distributed_nat,
> > @@ -14861,7 +14931,8 @@ build_lrouter_in_dnat_flow(struct hmap *lflows,
> > struct ovn_datapath *od,
> > }
> >
> > static void
> > -build_lrouter_out_undnat_flow(struct hmap *lflows, struct ovn_datapath *od,
> > +build_lrouter_out_undnat_flow(struct hmap *lflows,
> > + const struct ovn_datapath *od,
> > const struct nbrec_nat *nat, struct ds
> > *match,
> > struct ds *actions, bool distributed_nat,
> > struct eth_addr mac, bool is_v6,
> > @@ -14911,7 +14982,8 @@ build_lrouter_out_undnat_flow(struct hmap *lflows,
> > struct ovn_datapath *od,
> > }
> >
> > static void
> > -build_lrouter_out_is_dnat_local(struct hmap *lflows, struct ovn_datapath
> > *od,
> > +build_lrouter_out_is_dnat_local(struct hmap *lflows,
> > + const struct ovn_datapath *od,
> > const struct nbrec_nat *nat, struct ds
> > *match,
> > struct ds *actions, bool distributed_nat,
> > bool is_v6, struct ovn_port *l3dgw_port)
> > @@ -14941,7 +15013,8 @@ build_lrouter_out_is_dnat_local(struct hmap
> > *lflows, struct ovn_datapath *od,
> > }
> >
> > static void
> > -build_lrouter_out_snat_match(struct hmap *lflows, struct ovn_datapath *od,
> > +build_lrouter_out_snat_match(struct hmap *lflows,
> > + const struct ovn_datapath *od,
> > const struct nbrec_nat *nat, struct ds *match,
> > bool distributed_nat, int cidr_bits, bool
> > is_v6,
> > struct ovn_port *l3dgw_port)
> > @@ -14970,7 +15043,7 @@ build_lrouter_out_snat_match(struct hmap *lflows,
> > struct ovn_datapath *od,
> >
> > static void
> > build_lrouter_out_snat_stateless_flow(struct hmap *lflows,
> > - struct ovn_datapath *od,
> > + const struct ovn_datapath *od,
> > const struct nbrec_nat *nat,
> > struct ds *match, struct ds *actions,
> > bool distributed_nat,
> > @@ -15013,7 +15086,7 @@ build_lrouter_out_snat_stateless_flow(struct hmap
> > *lflows,
> >
> > static void
> > build_lrouter_out_snat_in_czone_flow(struct hmap *lflows,
> > - struct ovn_datapath *od,
> > + const struct ovn_datapath *od,
> > const struct nbrec_nat *nat,
> > struct ds *match,
> > struct ds *actions, bool
> > distributed_nat,
> > @@ -15074,7 +15147,8 @@ build_lrouter_out_snat_in_czone_flow(struct hmap
> > *lflows,
> > }
> >
> > static void
> > -build_lrouter_out_snat_flow(struct hmap *lflows, struct ovn_datapath *od,
> > +build_lrouter_out_snat_flow(struct hmap *lflows,
> > + const struct ovn_datapath *od,
> > const struct nbrec_nat *nat, struct ds *match,
> > struct ds *actions, bool distributed_nat,
> > struct eth_addr mac, int cidr_bits, bool is_v6,
> > @@ -15121,9 +15195,10 @@ build_lrouter_out_snat_flow(struct hmap *lflows,
> > struct ovn_datapath *od,
> > static void
> > build_lrouter_ingress_nat_check_pkt_len(struct hmap *lflows,
> > const struct nbrec_nat *nat,
> > - struct ovn_datapath *od, bool
> > is_v6,
> > - struct ds *match, struct ds
> > *actions,
> > - int mtu, struct ovn_port
> > *l3dgw_port,
> > + const struct ovn_datapath *od,
> > + bool is_v6, struct ds *match,
> > + struct ds *actions, int mtu,
> > + struct ovn_port *l3dgw_port,
> > const struct shash *meter_groups)
> > {
> > ds_clear(match);
> > @@ -15190,7 +15265,8 @@ build_lrouter_ingress_nat_check_pkt_len(struct hmap
> > *lflows,
> > }
> >
> > static void
> > -build_lrouter_ingress_flow(struct hmap *lflows, struct ovn_datapath *od,
> > +build_lrouter_ingress_flow(struct hmap *lflows,
> > + const struct ovn_datapath *od,
> > const struct nbrec_nat *nat, struct ds *match,
> > struct ds *actions, struct eth_addr mac,
> > bool distributed_nat, bool is_v6,
> > @@ -15240,7 +15316,8 @@ build_lrouter_ingress_flow(struct hmap *lflows,
> > struct ovn_datapath *od,
> > }
> >
> > static int
> > -lrouter_check_nat_entry(struct ovn_datapath *od, const struct nbrec_nat
> > *nat,
> > +lrouter_check_nat_entry(const struct ovn_datapath *od,
> > + const struct nbrec_nat *nat,
> > const struct hmap *lr_ports, ovs_be32 *mask,
> > bool *is_v6, int *cidr_bits, struct eth_addr *mac,
> > bool *distributed, struct ovn_port
> > **nat_l3dgw_port)
> > @@ -15367,15 +15444,8 @@ lrouter_check_nat_entry(struct ovn_datapath *od,
> > const struct nbrec_nat *nat,
> > }
> >
> > /* NAT, Defrag and load balancing. */
> > -static void
> > -build_lrouter_nat_defrag_and_lb(struct ovn_datapath *od, struct hmap
> > *lflows,
> > - const struct hmap *ls_ports,
> > - const struct hmap *lr_ports,
> > - const struct lr_nat_table *lr_nats,
> > - struct ds *match,
> > - struct ds *actions,
> > - const struct shash *meter_groups,
> > - const struct chassis_features *features)
> > +static void build_lr_nat_defrag_and_lb_default_flows(struct ovn_datapath
> > *od,
> > + struct hmap *lflows)
> > {
> > ovs_assert(od->nbr);
> >
> > @@ -15392,6 +15462,23 @@ build_lrouter_nat_defrag_and_lb(struct
> > ovn_datapath *od, struct hmap *lflows,
> > ovn_lflow_add(lflows, od, S_ROUTER_OUT_EGR_LOOP, 0, "1", "next;");
> > ovn_lflow_add(lflows, od, S_ROUTER_IN_ECMP_STATEFUL, 0, "1", "next;");
> >
> > + /* Send the IPv6 NS packets to next table. When ovn-controller
> > + * generates IPv6 NS (for the action - nd_ns{}), the injected
> > + * packet would go through conntrack - which is not required. */
> > + ovn_lflow_add(lflows, od, S_ROUTER_OUT_SNAT, 120, "nd_ns", "next;");
> > +}
> > +
> > +static void
> > +build_lrouter_nat_defrag_and_lb(
> > + const struct lr_lb_nat_data_record *lr_lbnat_rec, struct hmap *lflows,
> > + const struct hmap *ls_ports, const struct hmap *lr_ports,
> > + struct ds *match, struct ds *actions,
> > + const struct shash *meter_groups,
> > + const struct chassis_features *features)
> > +{
> > + const struct ovn_datapath *od = lr_lbnat_rec->od;
> > + ovs_assert(od->nbr);
> > +
> > const char *ct_flag_reg = features->ct_no_masked_label
> > ? "ct_mark"
> > : "ct_label";
> > @@ -15469,11 +15556,6 @@ build_lrouter_nat_defrag_and_lb(struct
> > ovn_datapath *od, struct hmap *lflows,
> > "ip && ct.new", "ct_commit { } ; next; ");
> > }
> >
> > - /* Send the IPv6 NS packets to next table. When ovn-controller
> > - * generates IPv6 NS (for the action - nd_ns{}), the injected
> > - * packet would go through conntrack - which is not required. */
> > - ovn_lflow_add(lflows, od, S_ROUTER_OUT_SNAT, 120, "nd_ns", "next;");
> > -
> > /* NAT rules are only valid on Gateway routers and routers with
> > * l3dgw_ports (router has port(s) with gateway chassis
> > * specified). */
> > @@ -15482,8 +15564,7 @@ build_lrouter_nat_defrag_and_lb(struct ovn_datapath
> > *od, struct hmap *lflows,
> > }
> >
> > struct sset nat_entries = SSET_INITIALIZER(&nat_entries);
> > - const struct lr_nat_record *lrnat_rec =
> > lr_nat_table_find_by_index(lr_nats,
> > -
> > od->index);
> > + const struct lr_nat_record *lrnat_rec = lr_lbnat_rec->lrnat_rec;
> > ovs_assert(lrnat_rec);
> >
> > bool dnat_force_snat_ip =
> > @@ -15766,7 +15847,129 @@ build_lrouter_nat_defrag_and_lb(struct
> > ovn_datapath *od, struct hmap *lflows,
> > sset_destroy(&nat_entries);
> > }
> >
> > +static void
> > +build_lsp_lflows_for_lbnats(struct ovn_port *lsp,
> > + struct ovn_port *lrp_peer,
> > + const struct lr_lb_nat_data_record
> > *lr_lbnat_rec,
> > + const struct lr_lb_nat_data_table *lr_lbnats,
> > + const struct hmap *lr_ports,
> > + struct hmap *lflows,
> > + struct ds *match,
> > + struct ds *actions)
> > +{
> > + ovs_assert(lsp->nbsp);
> > + start_collecting_lflows();
> > + build_lswitch_rport_arp_req_flows_for_lbnats(
> > + lrp_peer, lr_lbnat_rec, lsp->od, lsp,
> > + lflows, &lsp->nbsp->header_);
> > + build_ip_routing_flows_for_router_type_lsp(lsp, lr_lbnats,
> > + lr_ports, lflows);
> > + build_arp_resolve_flows_for_lsp_routable_addresses(
> > + lsp, lflows, lr_ports, lr_lbnats, match, actions);
> > + build_lswitch_ip_unicast_lookup_for_nats(lsp, lr_lbnat_rec, lflows,
> > + match, actions);
> > + link_ovn_port_to_lflows(lsp, &collected_lflows);
> > + end_collecting_lflows();
> > +}
> > +
> > +static void
> > +build_lbnat_lflows_iterate_by_lsp(struct ovn_port *op,
> > + const struct lr_lb_nat_data_table
> > *lr_lbnats,
> > + const struct hmap *lr_ports,
> > + struct ds *match,
> > + struct ds *actions,
> > + struct hmap *lflows)
> > +{
> > + ovs_assert(op->nbsp);
> > +
> > + if (!lsp_is_router(op->nbsp) || !op->peer) {
> > + return;
> > + }
> > +
> > + const struct lr_lb_nat_data_record *lr_lbnat_rec;
> > + lr_lbnat_rec = lr_lb_nat_data_table_find_by_index(lr_lbnats,
> > + op->peer->od->index);
> > + ovs_assert(lr_lbnat_rec);
> > +
> > + build_lsp_lflows_for_lbnats(op, op->peer, lr_lbnat_rec,
> > + lr_lbnats, lr_ports, lflows,
> > + match, actions);
> > +}
> > +
> > +static void
> > +build_lrp_lflows_for_lbnats(struct ovn_port *op,
> > + const struct lr_lb_nat_data_record
> > *lr_lbnat_rec,
> > + const struct shash *meter_groups,
> > + struct ds *match, struct ds *actions,
> > + struct hmap *lflows)
> > +{
> > + /* Drop IP traffic destined to router owned IPs except if the IP is
> > + * also a SNAT IP. Those are dropped later, in stage
> > + * "lr_in_arp_resolve", if unSNAT was unsuccessful.
> > + *
> > + * If lrnat_rec->lb_force_snat_router_ip is true, it means the IP of
> > the
> > + * router port is also SNAT IP.
> > + *
> > + * Priority 60.
> > + */
> > + if (!lr_lbnat_rec->lrnat_rec->lb_force_snat_router_ip) {
> > + build_lrouter_drop_own_dest(op, lr_lbnat_rec,
> > + S_ROUTER_IN_IP_INPUT, 60, false,
> > lflows);
> > + }
> > +
> > + /* Drop IP traffic destined to router owned IPs. Part of it is dropped
> > + * in stage "lr_in_ip_input" but traffic that could have been unSNATed
> > + * but didn't match any existing session might still end up here.
> > + *
> > + * Priority 2.
> > + */
> > + build_lrouter_drop_own_dest(op, lr_lbnat_rec,
> > + S_ROUTER_IN_ARP_RESOLVE, 2, true, lflows);
> > +
> > + build_lrouter_ipv4_ip_input_for_lbnats(op, lflows, lr_lbnat_rec,
> > + match, meter_groups);
> > + build_lrouter_force_snat_flows_op(op, lr_lbnat_rec->lrnat_rec, lflows,
> > + match, actions);
> > +}
> > +
> > +static void
> > +build_lbnat_lflows_iterate_by_lrp(struct ovn_port *op,
> > + const struct lr_lb_nat_data_table
> > *lr_lbnats,
> > + const struct shash *meter_groups,
> > + struct ds *match,
> > + struct ds *actions,
> > + struct hmap *lflows)
> > +{
> > + ovs_assert(op->nbrp);
> >
> > + const struct lr_lb_nat_data_record *lr_lbnat_rec;
> > + lr_lbnat_rec = lr_lb_nat_data_table_find_by_index(lr_lbnats,
> > + op->od->index);
> > + ovs_assert(lr_lbnat_rec);
> > +
> > + build_lrp_lflows_for_lbnats(op, lr_lbnat_rec, meter_groups, match,
> > + actions, lflows);
> > +}
> > +
> > +static void
> > +build_lr_lbnat_data_flows(const struct lr_lb_nat_data_record *lr_lbnat_rec,
> > + struct hmap *lflows,
> > + const struct hmap *ls_ports,
> > + const struct hmap *lr_ports,
> > + struct ds *match,
> > + struct ds *actions,
> > + const struct shash *meter_groups,
> > + const struct chassis_features *features)
> > +{
> > + build_lrouter_nat_defrag_and_lb(lr_lbnat_rec, lflows, ls_ports,
> > lr_ports,
> > + match, actions, meter_groups,
> > features);
> > + build_lr_gateway_redirect_flows_for_nats(lr_lbnat_rec->od,
> > + lr_lbnat_rec->lrnat_rec,
> > lflows,
> > + match, actions);
> > + build_lrouter_arp_nd_for_datapath(lr_lbnat_rec->od,
> > + lr_lbnat_rec->lrnat_rec, lflows,
> > + meter_groups);
> > +}
> >
> > struct lswitch_flow_build_info {
> > const struct ovn_datapaths *ls_datapaths;
> > @@ -15774,7 +15977,6 @@ struct lswitch_flow_build_info {
> > const struct hmap *ls_ports;
> > const struct hmap *lr_ports;
> > const struct ls_port_group_table *ls_port_groups;
> > - const struct lr_nat_table *lr_nats;
> > const struct lr_lb_nat_data_table *lr_lbnats;
> > struct hmap *lflows;
> > struct hmap *igmp_groups;
> > @@ -15841,17 +16043,13 @@ build_lswitch_and_lrouter_iterate_by_lr(struct
> > ovn_datapath *od,
> > build_check_pkt_len_flows_for_lrouter(od, lsi->lflows, lsi->lr_ports,
> > &lsi->match, &lsi->actions,
> > lsi->meter_groups);
> > - build_gateway_redirect_flows_for_lrouter(od, lsi->lflows, lsi->lr_nats,
> > - &lsi->match, &lsi->actions);
> > + build_gateway_redirect_flows_for_lrouter(od, lsi->lflows, &lsi->match,
> > + &lsi->actions);
> > build_arp_request_flows_for_lrouter(od, lsi->lflows, &lsi->match,
> > &lsi->actions, lsi->meter_groups);
> > build_misc_local_traffic_drop_flows_for_lrouter(od, lsi->lflows);
> > - build_lrouter_arp_nd_for_datapath(od, lsi->lr_nats, lsi->lflows,
> > - lsi->meter_groups);
> > - build_lrouter_nat_defrag_and_lb(od, lsi->lflows, lsi->ls_ports,
> > - lsi->lr_ports,lsi->lr_nats,
> > &lsi->match,
> > - &lsi->actions, lsi->meter_groups,
> > - lsi->features);
> > +
> > + build_lr_nat_defrag_and_lb_default_flows(od, lsi->lflows);
> > build_lrouter_lb_affinity_default_flows(od, lsi->lflows);
> > }
> >
> > @@ -15862,8 +16060,6 @@ static void
> > build_lswitch_and_lrouter_iterate_by_lsp(
> > struct ovn_port *op, const struct hmap *ls_ports,
> > const struct hmap *lr_ports,
> > - const struct lr_nat_table *lr_nats,
> > - const struct lr_lb_nat_data_table *lr_lbnats,
> > const struct shash *meter_groups,
> > struct ds *match,
> > struct ds *actions,
> > @@ -15880,14 +16076,11 @@ build_lswitch_and_lrouter_iterate_by_lsp(
> > meter_groups, actions, match);
> > build_lswitch_dhcp_options_and_response(op, lflows, meter_groups);
> > build_lswitch_external_port(op, lflows);
> > - build_lswitch_ip_unicast_lookup(op, lr_nats, lr_lbnats, lflows,
> > actions,
> > + build_lswitch_ip_unicast_lookup(op, lflows, actions,
> > match);
> >
> > /* Build Logical Router Flows. */
> > - build_ip_routing_flows_for_router_type_lsp(op, lr_lbnats, lr_ports,
> > - lflows);
> > - build_arp_resolve_flows_for_lsp(op, lflows, lr_ports, lr_lbnats,
> > - match, actions);
> > + build_arp_resolve_flows_for_lsp(op, lflows, lr_ports, match, actions);
> >
> > link_ovn_port_to_lflows(op, &collected_lflows);
> > end_collecting_lflows();
> > @@ -15902,12 +16095,6 @@ build_lswitch_and_lrouter_iterate_by_lrp(struct
> > ovn_port *op,
> > {
> > ovs_assert(op->nbrp);
> >
> > - const struct lr_nat_record *lrnet_rec = lr_nat_table_find_by_index(
> > - lsi->lr_nats, op->od->index);
> > - ovs_assert(lrnet_rec);
> > -
> > - const struct lr_lb_nat_data_record *lr_lbnat_rec =
> > - lr_lb_nat_data_table_find_by_index(lsi->lr_lbnats, op->od->index);
> > build_adm_ctrl_flows_for_lrouter_port(op, lsi->lflows, &lsi->match,
> > &lsi->actions);
> > build_neigh_learning_flows_for_lrouter_port(op, lsi->lflows,
> > &lsi->match,
> > @@ -15915,7 +16102,7 @@ build_lswitch_and_lrouter_iterate_by_lrp(struct
> > ovn_port *op,
> > build_ip_routing_flows_for_lrp(op, lsi->lflows);
> > build_ND_RA_flows_for_lrouter_port(op, lsi->lflows, &lsi->match,
> > &lsi->actions, lsi->meter_groups);
> > - build_arp_resolve_flows_for_lrp(op, lrnet_rec, lr_lbnat_rec,
> > lsi->lflows,
> > + build_arp_resolve_flows_for_lrp(op, lsi->lflows,
> > &lsi->match, &lsi->actions);
> > build_egress_delivery_flows_for_lrouter_port(op, lsi->lflows,
> > &lsi->match,
> > &lsi->actions);
> > @@ -15923,22 +16110,20 @@ build_lswitch_and_lrouter_iterate_by_lrp(struct
> > ovn_port *op,
> > build_ipv6_input_flows_for_lrouter_port(op, lsi->lflows,
> > &lsi->match, &lsi->actions,
> > lsi->meter_groups);
> > - build_lrouter_ipv4_ip_input(op, lsi->lflows, lrnet_rec, lr_lbnat_rec,
> > - &lsi->match, &lsi->actions,
> > lsi->meter_groups);
> > - build_lrouter_force_snat_flows_op(op, lrnet_rec, lsi->lflows,
> > &lsi->match,
> > - &lsi->actions);
> > + build_lrouter_ipv4_ip_input(op, lsi->lflows, &lsi->match,
> > &lsi->actions,
> > + lsi->meter_groups);
> > }
> >
> > static void *
> > build_lflows_thread(void *arg)
> > {
> > struct worker_control *control = (struct worker_control *) arg;
> > + const struct lr_lb_nat_data_record *lr_lbnat_rec;
> > struct lswitch_flow_build_info *lsi;
> > -
> > + struct ovn_igmp_group *igmp_group;
> > + struct ovn_lb_datapaths *lb_dps;
> > struct ovn_datapath *od;
> > struct ovn_port *op;
> > - struct ovn_lb_datapaths *lb_dps;
> > - struct ovn_igmp_group *igmp_group;
> > int bnum;
> >
> > while (!stop_parallel_processing()) {
> > @@ -15985,12 +16170,15 @@ build_lflows_thread(void *arg)
> > }
> > build_lswitch_and_lrouter_iterate_by_lsp(op,
> > lsi->ls_ports,
> > lsi->lr_ports,
> > - lsi->lr_nats,
> > -
> > lsi->lr_lbnats,
> >
> > lsi->meter_groups,
> > &lsi->match,
> > &lsi->actions,
> > lsi->lflows);
> > + build_lbnat_lflows_iterate_by_lsp(op, lsi->lr_lbnats,
> > + lsi->lr_ports,
> > + &lsi->match,
> > + &lsi->actions,
> > + lsi->lflows);
> > }
> > }
> > for (bnum = control->id;
> > @@ -16003,6 +16191,11 @@ build_lflows_thread(void *arg)
> > return NULL;
> > }
> > build_lswitch_and_lrouter_iterate_by_lrp(op, lsi);
> > + build_lbnat_lflows_iterate_by_lrp(op, lsi->lr_lbnats,
> > + lsi->meter_groups,
> > + &lsi->match,
> > + &lsi->actions,
> > + lsi->lflows);
> > }
> > }
> > for (bnum = control->id;
> > @@ -16025,7 +16218,7 @@ build_lflows_thread(void *arg)
> > build_lrouter_flows_for_lb(lb_dps, lsi->lflows,
> > lsi->meter_groups,
> > lsi->lr_datapaths,
> > - lsi->lr_nats,
> > + lsi->lr_lbnats,
> > lsi->features,
> > lsi->svc_monitor_map,
> > &lsi->match, &lsi->actions);
> > @@ -16037,6 +16230,23 @@ build_lflows_thread(void *arg)
> > &lsi->match, &lsi->actions);
> > }
> > }
> > + for (bnum = control->id;
> > + bnum <= lsi->lr_lbnats->entries.mask;
> > + bnum += control->pool->size)
> > + {
> > + LR_LB_NAT_DATA_TABLE_FOR_EACH_IN_P (lr_lbnat_rec, bnum,
> > + lsi->lr_lbnats) {
> > + if (stop_parallel_processing()) {
> > + return NULL;
> > + }
> > + build_lr_lbnat_data_flows(lr_lbnat_rec,
> > + lsi->lflows, lsi->ls_ports,
> > + lsi->lr_ports, &lsi->match,
> > + &lsi->actions,
> > + lsi->meter_groups,
> > + lsi->features);
> > + }
> > + }
> > for (bnum = control->id;
> > bnum <= lsi->igmp_groups->mask;
> > bnum += control->pool->size)
> > @@ -16096,7 +16306,6 @@ build_lswitch_and_lrouter_flows(const struct
> > ovn_datapaths *ls_datapaths,
> > const struct hmap *ls_ports,
> > const struct hmap *lr_ports,
> > const struct ls_port_group_table *ls_pgs,
> > - const struct lr_nat_table *lr_nats,
> > const struct lr_lb_nat_data_table
> > *lr_lbnats,
> > struct hmap *lflows,
> > struct hmap *igmp_groups,
> > @@ -16127,7 +16336,6 @@ build_lswitch_and_lrouter_flows(const struct
> > ovn_datapaths *ls_datapaths,
> > lsiv[index].ls_ports = ls_ports;
> > lsiv[index].lr_ports = lr_ports;
> > lsiv[index].ls_port_groups = ls_pgs;
> > - lsiv[index].lr_nats = lr_nats;
> > lsiv[index].lr_lbnats = lr_lbnats;
> > lsiv[index].igmp_groups = igmp_groups;
> > lsiv[index].meter_groups = meter_groups;
> > @@ -16153,17 +16361,18 @@ build_lswitch_and_lrouter_flows(const struct
> > ovn_datapaths *ls_datapaths,
> > }
> > free(lsiv);
> > } else {
> > + const struct lr_lb_nat_data_record *lr_lbnat_rec;
> > + struct ovn_igmp_group *igmp_group;
> > + struct ovn_lb_datapaths *lb_dps;
> > struct ovn_datapath *od;
> > struct ovn_port *op;
> > - struct ovn_lb_datapaths *lb_dps;
> > - struct ovn_igmp_group *igmp_group;
> > +
> > struct lswitch_flow_build_info lsi = {
> > .ls_datapaths = ls_datapaths,
> > .lr_datapaths = lr_datapaths,
> > .ls_ports = ls_ports,
> > .lr_ports = lr_ports,
> > .ls_port_groups = ls_pgs,
> > - .lr_nats = lr_nats,
> > .lr_lbnats = lr_lbnats,
> > .lflows = lflows,
> > .igmp_groups = igmp_groups,
> > @@ -16192,14 +16401,21 @@ build_lswitch_and_lrouter_flows(const struct
> > ovn_datapaths *ls_datapaths,
> > HMAP_FOR_EACH (op, key_node, ls_ports) {
> > build_lswitch_and_lrouter_iterate_by_lsp(op, lsi.ls_ports,
> > lsi.lr_ports,
> > - lsi.lr_nats,
> > - lsi.lr_lbnats,
> > lsi.meter_groups,
> > - &lsi.match,
> > &lsi.actions,
> > + &lsi.match,
> > + &lsi.actions,
> > lsi.lflows);
> > + build_lbnat_lflows_iterate_by_lsp(op, lsi.lr_lbnats,
> > lsi.lr_ports,
> > + &lsi.match, &lsi.actions,
> > + lsi.lflows);
> > }
> > HMAP_FOR_EACH (op, key_node, lr_ports) {
> > build_lswitch_and_lrouter_iterate_by_lrp(op, &lsi);
> > + build_lbnat_lflows_iterate_by_lrp(op, lsi.lr_lbnats,
> > + lsi.meter_groups,
> > + &lsi.match,
> > + &lsi.actions,
> > + lsi.lflows);
> > }
> > stopwatch_stop(LFLOWS_PORTS_STOPWATCH_NAME, time_msec());
> > stopwatch_start(LFLOWS_LBS_STOPWATCH_NAME, time_msec());
> > @@ -16210,7 +16426,7 @@ build_lswitch_and_lrouter_flows(const struct
> > ovn_datapaths *ls_datapaths,
> > build_lrouter_defrag_flows_for_lb(lb_dps, lsi.lflows,
> > lsi.lr_datapaths,
> > &lsi.match);
> > build_lrouter_flows_for_lb(lb_dps, lsi.lflows,
> > lsi.meter_groups,
> > - lsi.lr_datapaths, lsi.lr_nats,
> > + lsi.lr_datapaths, lsi.lr_lbnats,
> > lsi.features, lsi.svc_monitor_map,
> > &lsi.match, &lsi.actions);
> > build_lswitch_flows_for_lb(lb_dps, lsi.lflows,
> > lsi.meter_groups,
> > @@ -16219,6 +16435,14 @@ build_lswitch_and_lrouter_flows(const struct
> > ovn_datapaths *ls_datapaths,
> > &lsi.match, &lsi.actions);
> > }
> > stopwatch_stop(LFLOWS_LBS_STOPWATCH_NAME, time_msec());
> > +
> > + LR_LB_NAT_DATA_TABLE_FOR_EACH (lr_lbnat_rec, lr_lbnats) {
> > + build_lr_lbnat_data_flows(lr_lbnat_rec, lsi.lflows,
> > + lsi.ls_ports, lsi.lr_ports,
> > &lsi.match,
> > + &lsi.actions, lsi.meter_groups,
> > + lsi.features);
> > + }
> > +
> > stopwatch_start(LFLOWS_IGMP_STOPWATCH_NAME, time_msec());
> > HMAP_FOR_EACH (igmp_group, hmap_node, igmp_groups) {
> > build_lswitch_ip_mcast_igmp_mld(igmp_group,
> > @@ -16314,7 +16538,6 @@ void build_lflows(struct ovsdb_idl_txn *ovnsb_txn,
> > input_data->ls_ports,
> > input_data->lr_ports,
> > input_data->ls_port_groups,
> > - input_data->lr_nats,
> > input_data->lr_lbnats,
> > lflows,
> > &igmp_groups,
> > @@ -16795,11 +17018,22 @@ lflow_handle_northd_port_changes(struct
> > ovsdb_idl_txn *ovnsb_txn,
> > struct ds actions = DS_EMPTY_INITIALIZER;
> > build_lswitch_and_lrouter_iterate_by_lsp(op, lflow_input->ls_ports,
> > lflow_input->lr_ports,
> > - lflow_input->lr_nats,
> > - lflow_input->lr_lbnats,
> > lflow_input->meter_groups,
> > &match, &actions,
> > lflows);
> > +
> > + if (lsp_is_router(op->nbsp) && op->peer && op->peer->od->nbr) {
> > + const struct lr_lb_nat_data_record *lr_lbnat_rec;
> > + lr_lbnat_rec = lr_lb_nat_data_table_find_by_index(
> > + lflow_input->lr_lbnats, op->peer->od->index);
> > + ovs_assert(lr_lbnat_rec);
> > +
> > + build_lsp_lflows_for_lbnats(op, op->peer, lr_lbnat_rec,
> > + lflow_input->lr_lbnats,
> > + lflow_input->lr_ports,
> > + lflows, &match, &actions);
> > + }
> > +
> > ds_destroy(&match);
> > ds_destroy(&actions);
> >
> > @@ -16834,8 +17068,6 @@ lflow_handle_northd_port_changes(struct
> > ovsdb_idl_txn *ovnsb_txn,
> > struct ds actions = DS_EMPTY_INITIALIZER;
> > build_lswitch_and_lrouter_iterate_by_lsp(op, lflow_input->ls_ports,
> > lflow_input->lr_ports,
> > - lflow_input->lr_nats,
> > - lflow_input->lr_lbnats,
> >
> > lflow_input->meter_groups,
> > &match, &actions,
> > lflows);
> > diff --git a/northd/northd.h b/northd/northd.h
> > index 7c446f5758..08a81b2c10 100644
> > --- a/northd/northd.h
> > +++ b/northd/northd.h
> > @@ -178,7 +178,6 @@ struct lflow_input {
> > const struct hmap *ls_ports;
> > const struct hmap *lr_ports;
> > const struct ls_port_group_table *ls_port_groups;
> > - const struct lr_nat_table *lr_nats;
> > const struct lr_lb_nat_data_table *lr_lbnats;
> > const struct shash *meter_groups;
> > const struct hmap *lb_datapaths_map;
>
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