On Thu, Apr 6, 2023 at 1:17 PM Dumitru Ceara <[email protected]> wrote:

> On 3/29/23 16:57, Numan Siddique wrote:
> > On Wed, Mar 29, 2023 at 6:15 AM Dumitru Ceara <[email protected]> wrote:
> >>
> >> On 3/29/23 11:20, Ales Musil wrote:
> >>> There are essentially three problems with the current
> >>> combination of DGP + SNAT + LB:
> >>>
> >>> 1) The first packet is being SNATed in common zone due
> >>> to a problem with pinctrl not preserving ct_mark/ct_label.
> >>> The commit would create a SNAT entry within the same with DNAT
> >>> entry.
> >>>
> >>> 2) The unSNAT for reply always happened in common zone because of
> >>> the loopback check which would be triggered only when we loop
> >>> the packet through the LR. Now there are two possibilities how
> >>> the reply packet would be handled:
> >>>
> >>> a) If the entry for SNAT in common zone did not time out yet, the
> >>> packet would be passed through unSNAT in common zone which would
> >>> be fine and continue on. However, the unDNAT wouldn't work due to
> >>> the limitation of CT not capable of doing unSNAT/unDNAT on the same
> >>> packet twice in the same zone. So the reply would arrive to
> >>> the original interface, but with wrong source address.
> >>>
> >>> b) If the entry for SNAT timed out it would loop and do unSNAT
> correctly
> >>> in separate zone and then also unDNAT. This is not possible anymore
> with
> >>> a recent change 8c341b9d (northd: Drop packets destined to router
> owned NAT IP for DGP).
> >>> The reply would be dropped before looping after that change co the
> traffic
> >>> would never arrive to the original interface.
> >>>
> >>> 3) The unDNAT was happening only if the DGP was outport meaning
> >>> the reply traffic was routed out, but in the opposite case
> >>> the unDNAT was happening only because of the looping which made
> >>> outport=inport. That's why it worked before introduction of explicit
> drop.
> >>>
> >>> In order to fix all those issues do two changes:
> >>>
> >>> 1) Include inport in the unDNAT match, so that we have both
> >>> routing directions covered e.g. (inport == "dgp_port" || outport ==
> "dpg_port").
> >>>
> >>> 2) Always use the separate zone for SNAT and DNAT. As the common
> >>> zone was needed for HWOL make the common zone optional with
> >>> configuration option called "use_common_zone". This option is
> >>> by default "false" and can be specified per LR. Use of separate
> >>> zones also eliminates the need for the flag propagation
> >>> in "lr_out_chk_dnat_local" stage, removing the match on
> ct_mark/ct_label.
> >>>
> >>> Reported-at: https://bugzilla.redhat.com/2161281
> >>> Signed-off-by: Ales Musil <[email protected]>
> >>> ---
> >>> v2: Fix flaky system test.
> >>> v3: Rebase on top of current main.
> >>> v4: Rebase on top of current main.
> >>>     Move the system test to system-ovn-kmod
> >>>     to unblock the failures with userspace.
> >>> v5: Rebase on top of current main.
> >>> v6: Rebase on top of current main.
> >>>     Change the config to a global option instead.
> >>
> >> I know this was discussed on v5 [0][1] but I wanted to raise another
> point:
> >>
> >> The common zone was added to make deployments more "HWOL-friendly".
> >> Turning it into a global option means we can never have hybrid clusters,
> >> with only some of the nodes capable of offloading traffic efficiently.
> >>
> >> Do you foresee this becoming a problem?
> >
> > Having this option per router also is not going to solve this problem
> right ?
> > As the router would be distributed.
> >
> > From RedHat OSP perspective (after talking to Daniel) ,  I think this
> > would be a global option during deployment
> > and it's easier for the openstack installer to set this in NB_Global
> > rather than neutron setting this option for every router.
> >
> > I think it should be fine to have a global option.   In the case of
> > hybrid clusters you mentioned,  I suppose CMS should
> > enable using common zones.
>
> OK, sounds reasonable, I guess.
>
> Ales, I finally got a chance to read through the patch and I have a few
> comments below.  Overall the patch looks in good shape but please
> address those and then I think we can accept it.
>
> Regards,
> Dumitru
>
> >
> > Thanks
> > Numan
> >
> >>
> >> Thanks,
> >> Dumitru
> >>
> >> [0]
> https://mail.openvswitch.org/pipermail/ovs-dev/2023-March/403184.html
> >> [1]
> https://mail.openvswitch.org/pipermail/ovs-dev/2023-March/403187.html
> >>
> >>> ---
> >>>  northd/northd.c          | 496 ++++++++++++++++++++-------------------
> >>>  northd/ovn-northd.8.xml  |  90 +------
> >>>  ovn-nb.xml               |  10 +
> >>>  tests/ovn-northd.at      | 213 ++++++++++++-----
> >>>  tests/ovn.at             |   3 +
> >>>  tests/system-ovn-kmod.at | 166 +++++++++++++
> >>>  tests/system-ovn.at      | 117 ---------
> >>>  7 files changed, 601 insertions(+), 494 deletions(-)
> >>>
> >>> diff --git a/northd/northd.c b/northd/northd.c
> >>> index 7a10e4dcf..2e4e99f11 100644
> >>> --- a/northd/northd.c
> >>> +++ b/northd/northd.c
> >>> @@ -66,6 +66,9 @@ static bool check_lsp_is_up;
> >>>
> >>>  static bool install_ls_lb_from_router;
> >>>
> >>> +/* Use common zone for SNAT and DNAT if this option is set to "true".
> */
> >>> +static bool use_common_zone = false;
> >>> +
> >>>  /* MAC allocated for service monitor usage. Just one mac is allocated
> >>>   * for this purpose and ovn-controller's on each chassis will make use
> >>>   * of this mac when sending out the packets to monitor the services
> >>> @@ -10662,6 +10665,8 @@ build_distr_lrouter_nat_flows_for_lb(struct
> lrouter_nat_lb_flows_ctx *ctx,
> >>>                                       enum lrouter_nat_lb_flow_type
> type,
> >>>                                       struct ovn_datapath *od)
> >>>  {
> >>> +    struct ovn_port *dgp = od->l3dgw_ports[0];
> >>> +
> >>>      const char *undnat_action;
> >>>
> >>>      switch (type) {
> >>> @@ -10673,9 +10678,12 @@ build_distr_lrouter_nat_flows_for_lb(struct
> lrouter_nat_lb_flows_ctx *ctx,
> >>>          break;
> >>>      case LROUTER_NAT_LB_FLOW_NORMAL:
> >>>      case LROUTER_NAT_LB_FLOW_MAX:
> >>> -        undnat_action = od->is_gw_router ? "ct_dnat;" :
> "ct_dnat_in_czone;";
> >>> +        undnat_action = !od->is_gw_router && use_common_zone
> >>> +                        ? "ct_dnat_in_czone;"
> >>> +                        : "ct_dnat;";
>
> I think it's more clear if we have a helper function that we use in all
> places where we build the dnat action, e.g.:
>
> static const char *
> lrouter_get_dnat_action(const struct ovn_datapath *od)
> {
>     return !od->is_gw_router && use_common_zone
>            ? "ct_dnat_in_czone;"
>            : "ct_dnat;";
> }
>

There are only two places and both require slightly different
string in the end. This one is with ";" the other is without.
Which to me seems a bit more hassle for the helper function for two cases
WDYT?


>
> >>>          break;
> >>>      }
> >>> +
> >>>      /* Store the match lengths, so we can reuse the ds buffer. */
> >>>      size_t new_match_len = ctx->new_match->length;
> >>>      size_t undnat_match_len = ctx->undnat_match->length;
> >>> @@ -10702,10 +10710,9 @@ build_distr_lrouter_nat_flows_for_lb(struct
> lrouter_nat_lb_flows_ctx *ctx,
> >>>          return;
> >>>      }
> >>>
> >>> -    ds_put_format(ctx->undnat_match,
> >>> -                  ") && outport == %s && is_chassis_resident(%s)",
> >>> -                  od->l3dgw_ports[0]->json_key,
> >>> -                  od->l3dgw_ports[0]->cr_port->json_key);
> >>> +    ds_put_format(ctx->undnat_match, ") && (inport == %s || outport
> == %s)"
> >>> +                  " && is_chassis_resident(%s)", dgp->json_key,
> dgp->json_key,
> >>> +                  dgp->cr_port->json_key);
> >>>      ovn_lflow_add_with_hint(ctx->lflows, od, S_ROUTER_OUT_UNDNAT, 120,
> >>>                              ds_cstr(ctx->undnat_match), undnat_action,
> >>>                              &ctx->lb->nlb->header_);
> >>> @@ -11153,13 +11160,8 @@ copy_ra_to_sb(struct ovn_port *op, const char
> *address_mode)
> >>>  static inline bool
> >>>  lrouter_nat_is_stateless(const struct nbrec_nat *nat)
> >>>  {
> >>> -    const char *stateless = smap_get(&nat->options, "stateless");
> >>> -
> >>> -    if (stateless && !strcmp(stateless, "true")) {
> >>> -        return true;
> >>> -    }
> >>> -
> >>> -    return false;
> >>> +    return smap_get_bool(&nat->options, "stateless", false) &&
> >>> +           !strcmp(nat->type, "dnat_and_snat");
> >>>  }
>
> I was about to say "this seems wrong; we can also have snat stateless
> rules".  But after checking the man page it seems we can't.
> Nevertheless please move this to a separate commit with a proper "Fixes"
> tag and please rename the function to something more explicit, e.g.,
> "lrouter_dnat_and_snat_is_stateless()".
>

Done in v7.


>
> >>>
> >>>  /* Handles the match criteria and actions in logical flow
> >>> @@ -12893,7 +12895,6 @@ build_gateway_redirect_flows_for_lrouter(
> >>>              const struct ovn_nat *nat = &od->nat_entries[j];
> >>>
> >>>              if (!lrouter_nat_is_stateless(nat->nb) ||
> >>> -                strcmp(nat->nb->type, "dnat_and_snat") ||
> >>>                  (!nat->nb->allowed_ext_ips &&
> !nat->nb->exempted_ext_ips)) {
> >>>                  continue;
> >>>              }
> >>> @@ -13654,10 +13655,50 @@ build_lrouter_ipv4_ip_input(struct ovn_port
> *op,
> >>>      }
> >>>  }
> >>>
> >>> +static void
> >>> +build_lrouter_in_unsnat_in_czone_flow(struct hmap *lflows,
> >>> +                                      struct ovn_datapath *od,
> >>> +                                      const struct nbrec_nat *nat,
> >>> +                                      struct ds *match, bool
> distributed,
> >>> +                                      bool is_v6, struct ovn_port
> *l3dgw_port)
> >>> +{
> >>> +    struct ds zone_match = DS_EMPTY_INITIALIZER;
> >>> +
> >>> +    ds_put_format(match, "ip && ip%c.dst == %s && inport == %s",
> >>> +                  is_v6 ? '6' : '4', nat->external_ip,
> l3dgw_port->json_key);
> >>> +    ds_clone(&zone_match, match);
> >>> +
> >>> +    ds_put_cstr(match, " && flags.loopback == 0");
> >>> +
> >>> +    /* Update common zone match for the hairpin traffic. */
> >>> +    ds_put_cstr(&zone_match, " && flags.loopback == 1"
> >>> +                             " && flags.use_snat_zone == 1");
> >>> +
> >>> +
> >>> +    if (!distributed && od->n_l3dgw_ports) {
> >>> +        /* Flows for NAT rules that are centralized are only
> >>> +         * programmed on the gateway chassis. */
> >>> +        ds_put_format(match, " && is_chassis_resident(%s)",
> >>> +                      l3dgw_port->cr_port->json_key);
> >>> +        ds_put_format(&zone_match, " && is_chassis_resident(%s)",
> >>> +                      l3dgw_port->cr_port->json_key);
> >>> +    }
> >>> +
> >>> +    ovn_lflow_add_with_hint(lflows, od, S_ROUTER_IN_UNSNAT,
> >>> +                            100, ds_cstr(match), "ct_snat_in_czone;",
> >>> +                            &nat->header_);
> >>> +
> >>> +    ovn_lflow_add_with_hint(lflows, od, S_ROUTER_IN_UNSNAT,
> >>> +                            100, ds_cstr(&zone_match), "ct_snat;",
> >>> +                            &nat->header_);
> >>> +
> >>> +    ds_destroy(&zone_match);
> >>> +}
> >>> +
> >>>  static void
> >>>  build_lrouter_in_unsnat_flow(struct hmap *lflows, struct ovn_datapath
> *od,
> >>>                               const struct nbrec_nat *nat, struct ds
> *match,
> >>> -                             struct ds *actions, bool distributed,
> bool is_v6,
> >>> +                             bool distributed, bool is_v6,
> >>>                               struct ovn_port *l3dgw_port)
> >>>  {
> >>>      /* Ingress UNSNAT table: It is for already established
> connections'
> >>> @@ -13673,66 +13714,39 @@ build_lrouter_in_unsnat_flow(struct hmap
> *lflows, struct ovn_datapath *od,
> >>>          return;
> >>>      }
> >>>
> >>> +    ds_clear(match);
> >>> +
> >>>      bool stateless = lrouter_nat_is_stateless(nat);
> >>> -    if (od->is_gw_router) {
> >>> -        ds_clear(match);
> >>> -        ds_clear(actions);
> >>> -        ds_put_format(match, "ip && ip%s.dst == %s",
> >>> -                      is_v6 ? "6" : "4", nat->external_ip);
> >>> -        if (!strcmp(nat->type, "dnat_and_snat") && stateless) {
> >>> -            ds_put_format(actions, "next;");
> >>> -        } else {
> >>> -            ds_put_cstr(actions, "ct_snat;");
> >>> -        }
> >>>
> >>> -        ovn_lflow_add_with_hint(lflows, od, S_ROUTER_IN_UNSNAT,
> >>> -                                90, ds_cstr(match), ds_cstr(actions),
> >>> -                                &nat->header_);
> >>> -    } else {
> >>> +    if (!od->is_gw_router && use_common_zone && !stateless) {
> >>> +        build_lrouter_in_unsnat_in_czone_flow(lflows, od, nat, match,
> >>> +                                              distributed, is_v6,
> l3dgw_port);
> >>> +        return;
> >>> +    }
> >>> +
> >>> +    uint16_t priority = od->is_gw_router ? 90 : 100;
>
> I'm not sure I understand why we need two different priorities?  A
> datapath is either gw router or distributed.  But it was like this
> before your change too, since ceacd9d49316 ("ovn: distributed NAT
> flows").  So we can accept it I guess.
>
> >>> +    const char *action = stateless ? "next;" : "ct_snat;";
> >>> +
> >>> +    ds_put_format(match, "ip && ip%c.dst == %s",
> >>> +                  is_v6 ? '6' : '4', nat->external_ip);
> >>> +
> >>> +    if (!od->is_gw_router) {
> >>>          /* Distributed router. */
> >>>
> >>>          /* Traffic received on l3dgw_port is subject to NAT. */
> >>> -        ds_clear(match);
> >>> -        ds_clear(actions);
> >>> -        ds_put_format(match, "ip && ip%s.dst == %s && inport == %s &&
> "
> >>> -                      "flags.loopback == 0", is_v6 ? "6" : "4",
> >>> -                      nat->external_ip, l3dgw_port->json_key);
> >>> +        ds_put_format(match, " && inport == %s",
> l3dgw_port->json_key);
> >>> +
> >>>          if (!distributed && od->n_l3dgw_ports) {
> >>>              /* Flows for NAT rules that are centralized are only
> >>> -            * programmed on the gateway chassis. */
> >>> +             * programmed on the gateway chassis. */
> >>>              ds_put_format(match, " && is_chassis_resident(%s)",
> >>>                            l3dgw_port->cr_port->json_key);
> >>>          }
> >>> -
> >>> -        if (!strcmp(nat->type, "dnat_and_snat") && stateless) {
> >>> -            ds_put_format(actions, "next;");
> >>> -        } else {
> >>> -            ds_put_cstr(actions, "ct_snat_in_czone;");
> >>> -        }
> >>> -
> >>> -        ovn_lflow_add_with_hint(lflows, od, S_ROUTER_IN_UNSNAT,
> >>> -                                100, ds_cstr(match), ds_cstr(actions),
> >>> -                                &nat->header_);
> >>> -
> >>> -        if (!stateless) {
> >>> -            ds_clear(match);
> >>> -            ds_clear(actions);
> >>> -            ds_put_format(match, "ip && ip%s.dst == %s && inport ==
> %s && "
> >>> -                          "flags.loopback == 1 && flags.use_snat_zone
> == 1",
> >>> -                          is_v6 ? "6" : "4", nat->external_ip,
> >>> -                          l3dgw_port->json_key);
> >>> -            if (!distributed && od->n_l3dgw_ports) {
> >>> -                /* Flows for NAT rules that are centralized are only
> >>> -                * programmed on the gateway chassis. */
> >>> -                ds_put_format(match, " && is_chassis_resident(%s)",
> >>> -                            l3dgw_port->cr_port->json_key);
> >>> -            }
> >>> -            ds_put_cstr(actions, "ct_snat;");
> >>> -            ovn_lflow_add_with_hint(lflows, od, S_ROUTER_IN_UNSNAT,
> >>> -                                    100, ds_cstr(match),
> ds_cstr(actions),
> >>> -                                    &nat->header_);
> >>> -        }
> >>>      }
> >>> +
> >>> +    ovn_lflow_add_with_hint(lflows, od, S_ROUTER_IN_UNSNAT,
> >>> +                            priority, ds_cstr(match), action,
> >>> +                            &nat->header_);
> >>>  }
> >>>
> >>>  static void
> >>> @@ -13745,82 +13759,64 @@ build_lrouter_in_dnat_flow(struct hmap
> *lflows, struct ovn_datapath *od,
> >>>      /* Ingress DNAT table: Packets enter the pipeline with destination
> >>>      * IP address that needs to be DNATted from a external IP address
> >>>      * to a logical IP address. */
> >>> -    if (!strcmp(nat->type, "dnat") || !strcmp(nat->type,
> "dnat_and_snat")) {
> >>> -        bool stateless = lrouter_nat_is_stateless(nat);
> >>> +    if (strcmp(nat->type, "dnat") && strcmp(nat->type,
> "dnat_and_snat")) {
> >>> +        return;
> >>> +    }
> >>>
> >>> -        if (od->is_gw_router) {
> >>> -            /* Packet when it goes from the initiator to destination.
> >>> -             * We need to set flags.loopback because the router can
> >>> -             * send the packet back through the same interface. */
> >>> -            ds_clear(match);
> >>> -            ds_put_format(match, "ip && ip%s.dst == %s",
> >>> -                          is_v6 ? "6" : "4", nat->external_ip);
> >>> -            ds_clear(actions);
> >>> -            if (nat->allowed_ext_ips || nat->exempted_ext_ips) {
> >>> -                lrouter_nat_add_ext_ip_match(od, lflows, match, nat,
> >>> -                                             is_v6, true, cidr_bits);
> >>> -            }
> >>> +    ds_clear(match);
> >>> +    ds_clear(actions);
> >>>
> >>> -            if
> (!lport_addresses_is_empty(&od->dnat_force_snat_addrs)) {
> >>> -                /* Indicate to the future tables that a DNAT has taken
> >>> -                 * place and a force SNAT needs to be done in the
> >>> -                 * Egress SNAT table. */
> >>> -                ds_put_format(actions, "flags.force_snat_for_dnat =
> 1; ");
> >>> -            }
> >>> +    const char *nat_action = !od->is_gw_router && use_common_zone
> >>> +                             ? "ct_dnat_in_czone"
> >>> +                             : "ct_dnat";
> >>>
> >>> -            if (!strcmp(nat->type, "dnat_and_snat") && stateless) {
> >>> -                ds_put_format(actions, "flags.loopback = 1; "
> >>> -                              "ip%s.dst=%s; next;",
> >>> -                              is_v6 ? "6" : "4", nat->logical_ip);
> >>> -            } else {
> >>> -                ds_put_format(actions, "flags.loopback = 1;
> ct_dnat(%s",
> >>> -                              nat->logical_ip);
> >>> +    ds_put_format(match, "ip && ip%c.dst == %s", is_v6 ? '6' : '4',
> >>> +                  nat->external_ip);
> >>>
> >>> -                if (nat->external_port_range[0]) {
> >>> -                    ds_put_format(actions, ",%s",
> nat->external_port_range);
> >>> -                }
> >>> -                ds_put_format(actions, ");");
> >>> -            }
> >>> +    if (od->is_gw_router) {
> >>> +        if (!lport_addresses_is_empty(&od->dnat_force_snat_addrs)) {
> >>> +            /* Indicate to the future tables that a DNAT has taken
> >>> +             * place and a force SNAT needs to be done in the
> >>> +             * Egress SNAT table. */
> >>> +            ds_put_cstr(actions, "flags.force_snat_for_dnat = 1; ");
> >>> +        }
> >>>
> >>> -            ovn_lflow_add_with_hint(lflows, od, S_ROUTER_IN_DNAT, 100,
> >>> -                                    ds_cstr(match), ds_cstr(actions),
> >>> -                                    &nat->header_);
> >>> -        } else {
> >>> -            /* Distributed router. */
> >>> +        /* Packet when it goes from the initiator to destination.
> >>> +        * We need to set flags.loopback because the router can
> >>> +        * send the packet back through the same interface. */
> >>> +        ds_put_cstr(actions, "flags.loopback = 1; ");
> >>> +    } else {
> >>> +        /* Distributed router. */
> >>>
> >>> -            /* Traffic received on l3dgw_port is subject to NAT. */
> >>> -            ds_clear(match);
> >>> -            ds_put_format(match, "ip && ip%s.dst == %s && inport ==
> %s",
> >>> -                          is_v6 ? "6" : "4", nat->external_ip,
> >>> -                          l3dgw_port->json_key);
> >>> -            if (!distributed && od->n_l3dgw_ports) {
> >>> -                /* Flows for NAT rules that are centralized are only
> >>> -                * programmed on the gateway chassis. */
> >>> -                ds_put_format(match, " && is_chassis_resident(%s)",
> >>> -                              l3dgw_port->cr_port->json_key);
> >>> -            }
> >>> -            ds_clear(actions);
> >>> -            if (nat->allowed_ext_ips || nat->exempted_ext_ips) {
> >>> -                lrouter_nat_add_ext_ip_match(od, lflows, match, nat,
> >>> -                                             is_v6, true, cidr_bits);
> >>> -            }
> >>> +        /* Traffic received on l3dgw_port is subject to NAT. */
> >>> +        ds_put_format(match, " && inport == %s",
> l3dgw_port->json_key);
> >>> +        if (!distributed && od->n_l3dgw_ports) {
> >>> +            /* Flows for NAT rules that are centralized are only
> >>> +            * programmed on the gateway chassis. */
> >>> +            ds_put_format(match, " && is_chassis_resident(%s)",
> >>> +                          l3dgw_port->cr_port->json_key);
> >>> +        }
> >>> +    }
> >>>
> >>> -            if (!strcmp(nat->type, "dnat_and_snat") && stateless) {
> >>> -                ds_put_format(actions, "ip%s.dst=%s; next;",
> >>> -                              is_v6 ? "6" : "4", nat->logical_ip);
> >>> -            } else {
> >>> -                ds_put_format(actions, "ct_dnat_in_czone(%s",
> nat->logical_ip);
> >>> -                if (nat->external_port_range[0]) {
> >>> -                    ds_put_format(actions, ",%s",
> nat->external_port_range);
> >>> -                }
> >>> -                ds_put_format(actions, ");");
> >>> -            }
> >>> +    if (nat->allowed_ext_ips || nat->exempted_ext_ips) {
> >>> +        lrouter_nat_add_ext_ip_match(od, lflows, match, nat,
> >>> +                                     is_v6, true, cidr_bits);
> >>> +    }
> >>>
> >>> -            ovn_lflow_add_with_hint(lflows, od, S_ROUTER_IN_DNAT, 100,
> >>> -                                    ds_cstr(match), ds_cstr(actions),
> >>> -                                    &nat->header_);
> >>> +    if (lrouter_nat_is_stateless(nat)) {
> >>> +        ds_put_format(actions, "ip%c.dst=%s; next;",
> >>> +                      is_v6 ? '6' : '4', nat->logical_ip);
> >>> +    } else {
> >>> +        ds_put_format(actions, "%s(%s", nat_action, nat->logical_ip);
> >>> +        if (nat->external_port_range[0]) {
> >>> +            ds_put_format(actions, ",%s", nat->external_port_range);
> >>>          }
> >>> +        ds_put_format(actions, ");");
> >>>      }
> >>> +
> >>> +    ovn_lflow_add_with_hint(lflows, od, S_ROUTER_IN_DNAT, 100,
> >>> +                            ds_cstr(match), ds_cstr(actions),
> >>> +                            &nat->header_);
> >>>  }
> >>>
> >>>  static void
> >>> @@ -13843,8 +13839,10 @@ build_lrouter_out_undnat_flow(struct hmap
> *lflows, struct ovn_datapath *od,
> >>>      }
> >>>
> >>>      ds_clear(match);
> >>> -    ds_put_format(match, "ip && ip%s.src == %s && outport == %s",
> >>> -                  is_v6 ? "6" : "4", nat->logical_ip,
> >>> +    ds_clear(actions);
> >>> +
> >>> +    ds_put_format(match, "ip && ip%c.src == %s && outport == %s",
> >>> +                  is_v6 ? '6' : '4', nat->logical_ip,
> >>>                    l3dgw_port->json_key);
> >>>      if (!distributed && od->n_l3dgw_ports) {
> >>>          /* Flows for NAT rules that are centralized are only
> >>> @@ -13852,18 +13850,17 @@ build_lrouter_out_undnat_flow(struct hmap
> *lflows, struct ovn_datapath *od,
> >>>          ds_put_format(match, " && is_chassis_resident(%s)",
> >>>                        l3dgw_port->cr_port->json_key);
> >>>      }
> >>> -    ds_clear(actions);
> >>> +
> >>>      if (distributed) {
> >>>          ds_put_format(actions, "eth.src = "ETH_ADDR_FMT"; ",
> >>>                        ETH_ADDR_ARGS(mac));
> >>>      }
> >>>
> >>> -    if (!strcmp(nat->type, "dnat_and_snat") &&
> >>> -        lrouter_nat_is_stateless(nat)) {
> >>> -        ds_put_format(actions, "next;");
> >>> +    if (lrouter_nat_is_stateless(nat)) {
> >>> +        ds_put_cstr(actions, "next;");
> >>>      } else {
> >>> -        ds_put_format(actions,
> >>> -                      od->is_gw_router ? "ct_dnat;" :
> "ct_dnat_in_czone;");
> >>> +        ds_put_cstr(actions,
> >>> +                    use_common_zone ? "ct_dnat_in_czone;" :
> "ct_dnat;");
> >>>      }
> >>>
> >>>      ovn_lflow_add_with_hint(lflows, od, S_ROUTER_OUT_UNDNAT, 100,
> >>> @@ -13925,6 +13922,70 @@ build_lrouter_drop_ct_inv_flow(struct
> ovn_datapath *od, struct hmap *lflows)
> >>>                    "ip && ct.trk && ct.inv", debug_drop_action());
> >>>  }
> >>>
> >>> +static void
> >>> +build_lrouter_out_snat_in_czone_flow(struct hmap *lflows,
> >>> +                                     struct ovn_datapath *od,
> >>> +                                     const struct nbrec_nat *nat,
> >>> +                                     struct ds *match,
> >>> +                                     struct ds *actions, bool
> distributed,
> >>> +                                     struct eth_addr mac, int
> cidr_bits,
> >>> +                                     bool is_v6, struct ovn_port
> *l3dgw_port)
> >>> +{
> >>> +    /* The priority here is calculated such that the
> >>> +     * nat->logical_ip with the longest mask gets a higher
> >>> +     * priority. */
> >>> +    uint16_t priority = cidr_bits + 1;
> >>> +    struct ds zone_actions = DS_EMPTY_INITIALIZER;
> >>> +
> >>> +    ds_put_format(match, "ip && ip%c.src == %s && outport == %s",
> >>> +                  is_v6 ? '6' : '4', nat->logical_ip,
> l3dgw_port->json_key);
> >>> +
> >>> +    if (od->n_l3dgw_ports) {
> >>> +        priority += 128;
> >>> +        ds_put_format(match, " && is_chassis_resident(\"%s\")",
> >>> +                      distributed
> >>> +                      ? nat->logical_port
> >>> +                      : l3dgw_port->cr_port->key);
> >>> +    }
> >>> +
> >>> +    if (distributed) {
> >>> +        ds_put_format(actions, "eth.src = "ETH_ADDR_FMT"; ",
> >>> +                      ETH_ADDR_ARGS(mac));
> >>> +        ds_put_format(&zone_actions, "eth.src = "ETH_ADDR_FMT"; ",
> >>> +                      ETH_ADDR_ARGS(mac));
> >>> +    }
> >>> +
> >>> +    if (nat->allowed_ext_ips || nat->exempted_ext_ips) {
> >>> +        lrouter_nat_add_ext_ip_match(od, lflows, match, nat,
> >>> +                                     is_v6, false, cidr_bits);
> >>> +    }
> >>> +
> >>> +    ds_put_cstr(&zone_actions, REGBIT_DST_NAT_IP_LOCAL" = 0; ");
> >>> +
> >>> +    ds_put_format(actions, "ct_snat_in_czone(%s", nat->external_ip);
> >>> +    ds_put_format(&zone_actions, "ct_snat(%s", nat->external_ip);
> >>> +
> >>> +    if (nat->external_port_range[0]) {
> >>> +        ds_put_format(actions, ",%s", nat->external_port_range);
> >>> +        ds_put_format(&zone_actions, ",%s", nat->external_port_range);
> >>> +    }
> >>> +
> >>> +    ds_put_cstr(actions, ");");
> >>> +    ds_put_cstr(&zone_actions, ");");
> >>> +
> >>> +    ovn_lflow_add_with_hint(lflows, od, S_ROUTER_OUT_SNAT,
> >>> +                            priority, ds_cstr(match),
> >>> +                            ds_cstr(actions), &nat->header_);
> >>> +
> >>> +    ds_put_cstr(match, " && "REGBIT_DST_NAT_IP_LOCAL" == 1");
> >>> +
> >>> +    ovn_lflow_add_with_hint(lflows, od, S_ROUTER_OUT_SNAT,
> >>> +                            priority + 1, ds_cstr(match),
> >>> +                            ds_cstr(&zone_actions), &nat->header_);
> >>> +
> >>> +    ds_destroy(&zone_actions);
> >>> +}
> >>> +
> >>>  static void
> >>>  build_lrouter_out_snat_flow(struct hmap *lflows, struct ovn_datapath
> *od,
> >>>                              const struct nbrec_nat *nat, struct ds
> *match,
> >>> @@ -13939,109 +14000,67 @@ build_lrouter_out_snat_flow(struct hmap
> *lflows, struct ovn_datapath *od,
> >>>          return;
> >>>      }
> >>>
> >>> +    ds_clear(match);
> >>> +    ds_clear(actions);
> >>> +
> >>>      bool stateless = lrouter_nat_is_stateless(nat);
> >>> -    if (od->is_gw_router) {
> >>> -        ds_clear(match);
> >>> -        ds_put_format(match, "ip && ip%s.src == %s",
> >>> -                      is_v6 ? "6" : "4", nat->logical_ip);
> >>> -        ds_clear(actions);
> >>>
> >>> -        if (nat->allowed_ext_ips || nat->exempted_ext_ips) {
> >>> -            lrouter_nat_add_ext_ip_match(od, lflows, match, nat,
> >>> -                                         is_v6, false, cidr_bits);
> >>> -        }
> >>> +    if (!od->is_gw_router && use_common_zone && !stateless) {
> >>> +        build_lrouter_out_snat_in_czone_flow(lflows, od, nat, match,
> actions,
> >>> +                                             distributed, mac,
> cidr_bits,
> >>> +                                             is_v6, l3dgw_port);
> >>> +        return;
> >>> +    }
>
> I would prefer if we have two functions (one for each case) instead of
> embedding the "non-common-zone" case here.  The same comment applies to
> build_lrouter_in_unsnat_in_czone_flow()
>

Done in v7.


>
> >>>
> >>> -        if (!strcmp(nat->type, "dnat_and_snat") && stateless) {
> >>> -            ds_put_format(actions, "ip%s.src=%s; next;",
> >>> -                          is_v6 ? "6" : "4", nat->external_ip);
> >>> -        } else {
> >>> -            ds_put_format(match, " && (!ct.trk || !ct.rpl)");
> >>> -            ds_put_format(actions, "ct_snat(%s", nat->external_ip);
> >>> +    /* The priority here is calculated such that the
> >>> +     * nat->logical_ip with the longest mask gets a higher
> >>> +     * priority. */
> >>> +    uint16_t priority = cidr_bits + 1;
> >>>
> >>> -            if (nat->external_port_range[0]) {
> >>> -                ds_put_format(actions, ",%s",
> >>> -                              nat->external_port_range);
> >>> -            }
> >>> -            ds_put_format(actions, ");");
> >>> -        }
> >>> -
> >>> -        /* The priority here is calculated such that the
> >>> -        * nat->logical_ip with the longest mask gets a higher
> >>> -        * priority. */
> >>> -        ovn_lflow_add_with_hint(lflows, od, S_ROUTER_OUT_SNAT,
> >>> -                                cidr_bits + 1, ds_cstr(match),
> >>> -                                ds_cstr(actions), &nat->header_);
> >>> -    } else {
> >>> -        uint16_t priority = cidr_bits + 1;
> >>> +    ds_put_format(match, "ip && ip%c.src == %s",
> >>> +                  is_v6 ? '6' : '4', nat->logical_ip);
> >>>
> >>> +    if (!od->is_gw_router) {
> >>>          /* Distributed router. */
> >>> -        ds_clear(match);
> >>> -        ds_put_format(match, "ip && ip%s.src == %s && outport == %s",
> >>> -                      is_v6 ? "6" : "4", nat->logical_ip,
> >>> -                      l3dgw_port->json_key);
> >>> +        ds_put_format(match, " && outport == %s",
> l3dgw_port->json_key);
> >>>          if (od->n_l3dgw_ports) {
> >>> -            if (distributed) {
> >>> -                ovs_assert(nat->logical_port);
> >>> -                priority += 128;
> >>> -                ds_put_format(match, " &&
> is_chassis_resident(\"%s\")",
> >>> -                              nat->logical_port);
> >>> -            } else {
> >>> -                /* Flows for NAT rules that are centralized are only
> >>> -                * programmed on the gateway chassis. */
> >>> -                priority += 128;
> >>> -                ds_put_format(match, " && is_chassis_resident(%s)",
> >>> -                              l3dgw_port->cr_port->json_key);
> >>> -            }
> >>> -        }
> >>> -        ds_clear(actions);
> >>> -
> >>> -        if (nat->allowed_ext_ips || nat->exempted_ext_ips) {
> >>> -            lrouter_nat_add_ext_ip_match(od, lflows, match, nat,
> >>> -                                         is_v6, false, cidr_bits);
> >>> +            priority += 128;
> >>> +            ds_put_format(match, " && is_chassis_resident(\"%s\")",
> >>> +                          distributed
> >>> +                          ? nat->logical_port
> >>> +                          : l3dgw_port->cr_port->key);
> >>>          }
> >>>
> >>>          if (distributed) {
> >>>              ds_put_format(actions, "eth.src = "ETH_ADDR_FMT"; ",
> >>>                            ETH_ADDR_ARGS(mac));
> >>>          }
> >>> +    }
> >>>
> >>> -        if (!strcmp(nat->type, "dnat_and_snat") && stateless) {
> >>> -            ds_put_format(actions, "ip%s.src=%s; next;",
> >>> -                          is_v6 ? "6" : "4", nat->external_ip);
> >>> -        } else {
> >>> -            ds_put_format(actions, "ct_snat_in_czone(%s",
> >>> -                        nat->external_ip);
> >>> -            if (nat->external_port_range[0]) {
> >>> -                ds_put_format(actions, ",%s",
> nat->external_port_range);
> >>> -            }
> >>> -            ds_put_format(actions, ");");
> >>> -        }
> >>> +    if (nat->allowed_ext_ips || nat->exempted_ext_ips) {
> >>> +        lrouter_nat_add_ext_ip_match(od, lflows, match, nat,
> >>> +                                     is_v6, false, cidr_bits);
> >>> +    }
> >>>
> >>> -        /* The priority here is calculated such that the
> >>> -        * nat->logical_ip with the longest mask gets a higher
> >>> -        * priority. */
> >>> -        ovn_lflow_add_with_hint(lflows, od, S_ROUTER_OUT_SNAT,
> >>> -                                priority, ds_cstr(match),
> >>> -                                ds_cstr(actions), &nat->header_);
> >>> +    if (od->is_gw_router && !stateless) {
> >>> +        /* Gateway router. */
> >>> +        ds_put_cstr(match, " && (!ct.trk || !ct.rpl)");
> >>> +    }
> >>>
> >>> -        if (!stateless) {
> >>> -            ds_put_cstr(match, " && "REGBIT_DST_NAT_IP_LOCAL" == 1");
> >>> -            ds_clear(actions);
> >>> -            if (distributed) {
> >>> -                ds_put_format(actions, "eth.src = "ETH_ADDR_FMT"; ",
> >>> -                              ETH_ADDR_ARGS(mac));
> >>> -            }
> >>> -            ds_put_format(actions,  REGBIT_DST_NAT_IP_LOCAL" = 0;
> ct_snat(%s",
> >>> -                          nat->external_ip);
> >>> -            if (nat->external_port_range[0]) {
> >>> -                ds_put_format(actions, ",%s",
> nat->external_port_range);
> >>> -            }
> >>> -            ds_put_format(actions, ");");
> >>> -            ovn_lflow_add_with_hint(lflows, od, S_ROUTER_OUT_SNAT,
> >>> -                                    priority + 1, ds_cstr(match),
> >>> -                                    ds_cstr(actions), &nat->header_);
> >>> +    if (stateless) {
> >>> +        ds_put_format(actions, "ip%c.src=%s; next;",
> >>> +                      is_v6 ? '6' : '4', nat->external_ip);
> >>> +    } else {
> >>> +        ds_put_format(actions, "ct_snat(%s", nat->external_ip);
> >>> +        if (nat->external_port_range[0]) {
> >>> +            ds_put_format(actions, ",%s", nat->external_port_range);
> >>>          }
> >>> +        ds_put_format(actions, ");");
> >>>      }
> >>> +
> >>> +    ovn_lflow_add_with_hint(lflows, od, S_ROUTER_OUT_SNAT,
> >>> +                            priority, ds_cstr(match),
> >>> +                            ds_cstr(actions), &nat->header_);
> >>>  }
> >>>
> >>>  static void
> >>> @@ -14428,11 +14447,11 @@ build_lrouter_nat_defrag_and_lb(struct
> ovn_datapath *od, struct hmap *lflows,
> >>>          }
> >>>
> >>>          /* S_ROUTER_IN_UNSNAT */
> >>> -        build_lrouter_in_unsnat_flow(lflows, od, nat, match, actions,
> distributed,
> >>> +        build_lrouter_in_unsnat_flow(lflows, od, nat, match,
> distributed,
> >>>                                       is_v6, l3dgw_port);
> >>>          /* S_ROUTER_IN_DNAT */
> >>> -        build_lrouter_in_dnat_flow(lflows, od, nat, match, actions,
> distributed,
> >>> -                                   cidr_bits, is_v6, l3dgw_port);
> >>> +        build_lrouter_in_dnat_flow(lflows, od, nat, match, actions,
> >>> +                                   distributed, cidr_bits, is_v6,
> l3dgw_port);
> >>>
> >>>          /* ARP resolve for NAT IPs. */
> >>>          if (od->is_gw_router) {
> >>> @@ -14501,16 +14520,19 @@ build_lrouter_nat_defrag_and_lb(struct
> ovn_datapath *od, struct hmap *lflows,
> >>>              }
> >>>          }
> >>>
> >>> -        /* S_ROUTER_OUT_DNAT_LOCAL */
> >>> -        build_lrouter_out_is_dnat_local(lflows, od, nat, match,
> actions,
> >>> -                                        distributed, is_v6,
> l3dgw_port);
> >>> +        if (use_common_zone) {
> >>> +            /* S_ROUTER_OUT_DNAT_LOCAL */
> >>> +            build_lrouter_out_is_dnat_local(lflows, od, nat, match,
> actions,
> >>> +                                            distributed, is_v6,
> l3dgw_port);
> >>> +        }
> >>>
> >>>          /* S_ROUTER_OUT_UNDNAT */
> >>> -        build_lrouter_out_undnat_flow(lflows, od, nat, match,
> actions, distributed,
> >>> -                                      mac, is_v6, l3dgw_port);
> >>> +        build_lrouter_out_undnat_flow(lflows, od, nat, match, actions,
> >>> +                                      distributed, mac, is_v6,
> l3dgw_port);
> >>>          /* S_ROUTER_OUT_SNAT */
> >>> -        build_lrouter_out_snat_flow(lflows, od, nat, match, actions,
> distributed,
> >>> -                                    mac, cidr_bits, is_v6,
> l3dgw_port);
> >>> +        build_lrouter_out_snat_flow(lflows, od, nat, match, actions,
> >>> +                                    distributed, mac, cidr_bits,
> is_v6,
> >>> +                                    l3dgw_port);
> >>>
> >>>          /* S_ROUTER_IN_ADMISSION - S_ROUTER_IN_IP_INPUT */
> >>>          build_lrouter_ingress_flow(lflows, od, nat, match, actions,
> mac,
> >>> @@ -14580,8 +14602,11 @@ build_lrouter_nat_defrag_and_lb(struct
> ovn_datapath *od, struct hmap *lflows,
> >>>                            "clone { ct_clear; "
> >>>                            "inport = outport; outport = \"\"; "
> >>>                            "eth.dst <-> eth.src; "
> >>> -                          "flags = 0; flags.loopback = 1; "
> >>> -                          "flags.use_snat_zone =
> "REGBIT_DST_NAT_IP_LOCAL"; ");
> >>> +                          "flags = 0; flags.loopback = 1; ");
> >>> +            if (use_common_zone) {
> >>> +                ds_put_cstr(actions, "flags.use_snat_zone = "
> >>> +                            REGBIT_DST_NAT_IP_LOCAL"; ");
> >>> +            }
> >>>              for (int j = 0; j < MFF_N_LOG_REGS; j++) {
> >>>                  ds_put_format(actions, "reg%d = 0; ", j);
> >>>              }
> >>> @@ -14594,7 +14619,7 @@ build_lrouter_nat_defrag_and_lb(struct
> ovn_datapath *od, struct hmap *lflows,
> >>>          }
> >>>      }
> >>>
> >>> -    if (od->nbr->n_nat) {
> >>> +    if (use_common_zone && od->nbr->n_nat) {
> >>>          ds_clear(match);
> >>>          const char *ct_natted = features->ct_no_masked_label ?
> >>>                                  "ct_mark.natted" :
> >>> @@ -16508,6 +16533,7 @@ ovnnb_db_run(struct northd_input *input_data,
> >>>      install_ls_lb_from_router = smap_get_bool(&nb->options,
> >>>
> "install_ls_lb_from_router",
> >>>                                                false);
> >>> +    use_common_zone = smap_get_bool(&nb->options, "use_common_zone",
> false);
> >>>
> >>>      build_chassis_features(input_data->sbrec_chassis_table,
> &data->features);
> >>>
> >>> diff --git a/northd/ovn-northd.8.xml b/northd/ovn-northd.8.xml
> >>> index 4100cae0d..f11cdc468 100644
> >>> --- a/northd/ovn-northd.8.xml
> >>> +++ b/northd/ovn-northd.8.xml
> >>> @@ -3244,13 +3244,11 @@ icmp6 {
> >>>              <p>
> >>>                The first flow matches <code>ip &amp;&amp;
> >>>                ip4.dst == <var>B</var> &amp;&amp; inport ==
> <var>GW</var>
> >>> -              &amp;&amp; flags.loopback == 0</code> or
> >>> -              <code>ip &amp;&amp;
> >>> -              ip6.dst == <var>B</var> &amp;&amp; inport ==
> <var>GW</var>
> >>> -              &amp;&amp; flags.loopback == 0</code>
> >>> +              </code> or <code>ip &amp;&amp; ip6.dst == <var>B</var>
> &amp;&amp;
> >>> +              inport == <var>GW</var></code>
> >>>                where <var>GW</var> is the distributed gateway port
> >>>                corresponding to the NAT rule (specified or inferred),
> with an
> >>> -              action <code>ct_snat_in_czone;</code> to unSNAT in the
> common
> >>> +              action <code>ct_snat;</code> to unSNAT in the common
> >>>                zone.  If the NAT rule is of type dnat_and_snat and has
> >>>                <code>stateless=true</code> in the options, then the
> action
> >>>                would be <code>next;</code>.
> >>> @@ -3263,32 +3261,6 @@ icmp6 {
> >>>                <var>GW</var>.
> >>>              </p>
> >>>            </li>
> >>> -
> >>> -          <li>
> >>> -            <p>
> >>> -              The second flow matches <code>ip &amp;&amp;
> >>> -              ip4.dst == <var>B</var> &amp;&amp; inport ==
> <var>GW</var>
> >>> -              &amp;&amp; flags.loopback == 1 &amp;&amp;
> >>> -              flags.use_snat_zone == 1</code> or
> >>> -              <code>ip &amp;&amp;
> >>> -              ip6.dst == <var>B</var> &amp;&amp; inport ==
> <var>GW</var>
> >>> -              &amp;&amp; flags.loopback == 0 &amp;&amp;
> >>> -              flags.use_snat_zone == 1</code>
> >>> -              where <var>GW</var> is the distributed gateway port
> >>> -              corresponding to the NAT rule (specified or inferred),
> with an
> >>> -              action <code>ct_snat;</code> to unSNAT in the snat
> zone. If the
> >>> -              NAT rule is of type dnat_and_snat and has
> >>> -              <code>stateless=true</code> in the options, then the
> action
> >>> -              would be <code>ip4/6.dst=(<var>B</var>)</code>.
> >>> -            </p>
> >>> -
> >>> -            <p>
> >>> -              If the NAT entry is of type <code>snat</code>, then
> there is an
> >>> -              additional match
> <code>is_chassis_resident(<var>cr-GW</var>)
> >>> -              </code> where <var>cr-GW</var> is the chassis resident
> port of
> >>> -              <var>GW</var>.
> >>> -            </p>
> >>> -          </li>
> >>>          </ul>
> >>>
> >>>          <p>
> >>> @@ -4613,46 +4585,12 @@ nd_ns {
> >>>      </p>
> >>>
> >>>      <ul>
> >>> -      <li>
> >>> -        <p>
> >>> -          For each NAT rule in the OVN Northbound database on a
> >>> -          distributed router, a priority-50 logical flow with match
> >>> -          <code>ip4.dst == <var>E</var> &amp;&amp;
> >>> -          is_chassis_resident(<var>P</var>)</code>, where
> <var>E</var> is the
> >>> -          external IP address specified in the NAT rule, <var>GW</var>
> >>> -          is the logical router distributed gateway port. For
> dnat_and_snat
> >>> -          NAT rule, <var>P</var> is the logical port specified in the
> NAT rule.
> >>> -          If <ref column="logical_port"
> >>> -          table="NAT" db="OVN_Northbound"/> column of
> >>> -          <ref table="NAT" db="OVN_Northbound"/> table is NOT set,
> then
> >>> -          <var>P</var> is the <code>chassisredirect port</code> of
> >>> -          <var>GW</var> with the actions:
> >>> -          <code>REGBIT_DST_NAT_IP_LOCAL = 1; next; </code>
> >>> -        </p>
> >>> -      </li>
> >>> -
> >>>        <li>
> >>>          A priority-0 logical flow with match <code>1</code> has
> actions
> >>>          <code>REGBIT_DST_NAT_IP_LOCAL = 0; next;</code>.
> >>>        </li>
> >>>      </ul>
> >>>
> >>> -    <p>
> >>> -      This table also installs a priority-50 logical flow for each
> logical
> >>> -      router that has NATs configured on it. The flow has match
> >>> -      <code>ip &amp;&amp; ct_label.natted == 1</code> and action
> >>> -      <code>REGBIT_DST_NAT_IP_LOCAL = 1; next;</code>. This is
> intended
> >>> -      to ensure that traffic that was DNATted locally will use a
> separate
> >>> -      conntrack zone for SNAT if SNAT is required later in the egress
> >>> -      pipeline. Note that this flow checks the value of
> >>> -      <code>ct_label.natted</code>, which is set in the ingress
> pipeline.
> >>> -      This means that ovn-northd assumes that this value is carried
> over
> >>> -      from the ingress pipeline to the egress pipeline and is not
> altered
> >>> -      or cleared. If conntrack label values are ever changed to be
> cleared
> >>> -      between the ingress and egress pipelines, then the match
> conditions
> >>> -      of this flow will be updated accordingly.
> >>> -    </p>
> >>> -
> >>>      <h3>Egress Table 1: UNDNAT</h3>
> >>>
> >>>      <p>
> >>> @@ -4694,7 +4632,7 @@ nd_ns {
> >>>            gateway chassis that matches
> >>>            <code>ip &amp;&amp; ip4.src == <var>B</var> &amp;&amp;
> >>>            outport == <var>GW</var></code>, where <var>GW</var> is the
> logical
> >>> -          router gateway port with an action
> <code>ct_dnat_in_czone;</code>.
> >>> +          router gateway port with an action <code>ct_dnat;</code>.
> >>>            If the backend IPv4 address <var>B</var> is also configured
> with
> >>>            L4 port <var>PORT</var> of protocol <var>P</var>, then the
> >>>            match also includes <code>P.src</code> == <var>PORT</var>.
> These
> >>> @@ -4716,7 +4654,7 @@ nd_ns {
> >>>            matches <code>ip &amp;&amp; ip4.src == <var>B</var>
> >>>            &amp;&amp; outport == <var>GW</var></code>, where
> <var>GW</var>
> >>>            is the logical router gateway port, with an action
> >>> -          <code>ct_dnat_in_czone;</code>. If the NAT rule is of type
> >>> +          <code>ct_dnat;</code>. If the NAT rule is of type
> >>>            dnat_and_snat and has <code>stateless=true</code> in the
> >>>            options, then the action would be <code>next;</code>.
> >>>          </p>
> >>> @@ -4724,7 +4662,7 @@ nd_ns {
> >>>          <p>
> >>>            If the NAT rule cannot be handled in a distributed manner,
> then
> >>>            the priority-100 flow above is only programmed on the
> >>> -          gateway chassis with the action
> <code>ct_dnat_in_czone</code>.
> >>> +          gateway chassis with the action <code>ct_dnat</code>.
> >>>          </p>
> >>>
> >>>          <p>
> >>> @@ -4900,24 +4838,11 @@ nd_ns {
> >>>              and match <code>ip &amp;&amp; ip4.src == <var>A</var>
> &amp;&amp;
> >>>              outport == <var>GW</var></code>, where <var>GW</var> is
> the
> >>>              logical router gateway port, with an action
> >>> -            <code>ct_snat_in_czone(<var>B</var>);</code> to SNATed in
> the
> >>> +            <code>ct_snat(<var>B</var>);</code> to SNATed in the
> >>>              common zone.  If the NAT rule is of type dnat_and_snat
> and has
> >>>              <code>stateless=true</code> in the options, then the
> action
> >>>              would be <code>ip4/6.src=(<var>B</var>)</code>.
> >>>            </li>
> >>> -
> >>> -          <li>
> >>> -            The second flow is added with the calculated priority
> >>> -            <code><var>P</var> + 1 </code> and match
> >>> -            <code>ip &amp;&amp; ip4.src == <var>A</var> &amp;&amp;
> >>> -            outport == <var>GW</var> &amp;&amp;
> >>> -            REGBIT_DST_NAT_IP_LOCAL == 0</code>, where <var>GW</var>
> is the
> >>> -            logical router gateway port, with an action
> >>> -            <code>ct_snat(<var>B</var>);</code> to SNAT in the snat
> zone.
> >>> -            If the NAT rule is of type dnat_and_snat and has
> >>> -            <code>stateless=true</code> in the options, then the
> action would
> >>> -            be <code>ip4/6.src=(<var>B</var>)</code>.
> >>> -          </li>
> >>>          </ul>
> >>>
> >>>          <p>
> >>> @@ -5024,7 +4949,6 @@ clone {
> >>>      outport = "";
> >>>      flags = 0;
> >>>      flags.loopback = 1;
> >>> -    flags.use_snat_zone = REGBIT_DST_NAT_IP_LOCAL;
> >>>      reg0 = 0;
> >>>      reg1 = 0;
> >>>      ...
> >>> diff --git a/ovn-nb.xml b/ovn-nb.xml
> >>> index d6694778f..f5d2944e6 100644
> >>> --- a/ovn-nb.xml
> >>> +++ b/ovn-nb.xml
> >>> @@ -314,6 +314,15 @@
> >>>          </p>
> >>>        </column>
> >>>
> >>> +      <column name="options" key="use_common_zone" type='{"type":
> "boolean"}'>
> >>> +        Default value is <code>false</code>. If set to
> <code>true</code>
> >>> +        the SNAT and DNAT happens in common zone, instead of
> happening in
> >>> +        separate zones, depending on the configuration. However, this
> option
> >>> +        breaks traffic when there is configuration of DGP + LB + SNAT
> on
> >>> +        this LR. The value <code>true</code> should be used only in
> case
> >>> +        of HWOL compatibility with GDP.
> >>> +      </column>
> >>> +
> >>>        <group title="Options for configuring interconnection route
> advertisement">
> >>>          <p>
> >>>            These options control how routes are advertised between OVN
> >>> @@ -2575,6 +2584,7 @@ or
> >>>          exceeding this timeout will be automatically removed. The
> value
> >>>          defaults to 0, which means disabled.
> >>>        </column>
> >>> +
>
> Unrelated change.
>

Done in v7.


>
> >>>      </group>
> >>>
> >>>      <group title="Common Columns">
> >>> diff --git a/tests/ovn-northd.at b/tests/ovn-northd.at
> >>> index a3db189ac..6f5650416 100644
> >>> --- a/tests/ovn-northd.at
> >>> +++ b/tests/ovn-northd.at
> >>> @@ -892,7 +892,7 @@ check_flow_match_sets() {
> >>>  echo
> >>>  echo "IPv4: stateful"
> >>>  ovn-nbctl --wait=sb lr-nat-add R1 dnat_and_snat  172.16.1.1 50.0.0.11
> >>> -check_flow_match_sets 3 4 2 0 0 0 0
> >>> +check_flow_match_sets 2 2 2 0 0 0 0
> >>>  ovn-nbctl lr-nat-del R1 dnat_and_snat  172.16.1.1
> >>>
> >>>  echo
> >>> @@ -904,7 +904,7 @@ ovn-nbctl lr-nat-del R1 dnat_and_snat  172.16.1.1
> >>>  echo
> >>>  echo "IPv6: stateful"
> >>>  ovn-nbctl --wait=sb lr-nat-add R1 dnat_and_snat fd01::1 fd11::2
> >>> -check_flow_match_sets 3 4 2 0 0 0 0
> >>> +check_flow_match_sets 2 2 2 0 0 0 0
> >>>  ovn-nbctl lr-nat-del R1 dnat_and_snat  fd01::1
> >>>
> >>>  echo
> >>> @@ -939,9 +939,9 @@ echo "CR-LRP UUID is: " $uuid
> >>>  ovn-nbctl --portrange lr-nat-add R1 dnat_and_snat  172.16.1.1
> 50.0.0.11 1-3000
> >>>
> >>>  AT_CAPTURE_FILE([sbflows])
> >>> -OVS_WAIT_UNTIL([ovn-sbctl dump-flows R1 > sbflows && test 3 = `grep
> -c lr_in_unsnat sbflows`])
> >>> +OVS_WAIT_UNTIL([ovn-sbctl dump-flows R1 > sbflows && test 2 = `grep
> -c lr_in_unsnat sbflows`])
> >>>  AT_CHECK([grep -c 'ct_snat.*3000' sbflows && grep -c 'ct_dnat.*3000'
> sbflows],
> >>> -  [0], [2
> >>> +  [0], [1
> >>>  1
> >>>  ])
> >>>
> >>> @@ -949,9 +949,9 @@ ovn-nbctl lr-nat-del R1 dnat_and_snat  172.16.1.1
> >>>  ovn-nbctl --wait=sb --portrange lr-nat-add R1 snat  172.16.1.1
> 50.0.0.11 1-3000
> >>>
> >>>  AT_CAPTURE_FILE([sbflows2])
> >>> -OVS_WAIT_UNTIL([ovn-sbctl dump-flows R1 > sbflows2 && test 3 = `grep
> -c lr_in_unsnat sbflows`])
> >>> +OVS_WAIT_UNTIL([ovn-sbctl dump-flows R1 > sbflows2 && test 2 = `grep
> -c lr_in_unsnat sbflows`])
> >>>  AT_CHECK([grep -c 'ct_snat.*3000' sbflows2 && grep -c 'ct_dnat.*3000'
> sbflows2],
> >>> -  [1], [2
> >>> +  [1], [1
> >>>  0
> >>>  ])
> >>>
> >>> @@ -959,7 +959,7 @@ ovn-nbctl lr-nat-del R1 snat  172.16.1.1
> >>>  ovn-nbctl --wait=sb --portrange --stateless lr-nat-add R1
> dnat_and_snat  172.16.1.2 50.0.0.12 1-3000
> >>>
> >>>  AT_CAPTURE_FILE([sbflows3])
> >>> -OVS_WAIT_UNTIL([ovn-sbctl dump-flows R1 > sbflows3 && test 4 = `grep
> -c lr_in_unsnat sbflows3`])
> >>> +OVS_WAIT_UNTIL([ovn-sbctl dump-flows R1 > sbflows3 && test 3 = `grep
> -c lr_in_unsnat sbflows3`])
> >>>  AT_CHECK([grep 'ct_[s]dnat.*172\.16\.1\.2.*3000' sbflows3], [1])
> >>>
> >>>  ovn-nbctl lr-nat-del R1 dnat_and_snat  172.16.1.1
> >>> @@ -1026,8 +1026,7 @@ AT_CAPTURE_FILE([crflows])
> >>>  AT_CHECK([grep -e "lr_out_snat" drflows | sed 's/table=../table=??/'
> | sort], [0], [dnl
> >>>    table=??(lr_out_snat        ), priority=0    , match=(1),
> action=(next;)
> >>>    table=??(lr_out_snat        ), priority=120  , match=(nd_ns),
> action=(next;)
> >>> -  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1") &&
> ip4.dst == $allowed_range), action=(ct_snat_in_czone(172.16.1.1);)
> >>> -  table=??(lr_out_snat        ), priority=162  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1") &&
> ip4.dst == $allowed_range && reg9[[4]] == 1), action=(reg9[[4]] = 0;
> ct_snat(172.16.1.1);)
> >>> +  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1") &&
> ip4.dst == $allowed_range), action=(ct_snat(172.16.1.1);)
> >>>  ])
> >>>
> >>>  AT_CHECK([grep -e "lr_out_snat" crflows | sed 's/table=../table=??/'
> | sort], [0], [dnl
> >>> @@ -1057,8 +1056,7 @@ AT_CAPTURE_FILE([crflows2])
> >>>  AT_CHECK([grep -e "lr_out_snat" drflows2 | sed 's/table=../table=??/'
> | sort], [0], [dnl
> >>>    table=??(lr_out_snat        ), priority=0    , match=(1),
> action=(next;)
> >>>    table=??(lr_out_snat        ), priority=120  , match=(nd_ns),
> action=(next;)
> >>> -  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_snat_in_czone(172.16.1.1);)
> >>> -  table=??(lr_out_snat        ), priority=162  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1") &&
> reg9[[4]] == 1), action=(reg9[[4]] = 0; ct_snat(172.16.1.1);)
> >>> +  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_snat(172.16.1.1);)
> >>>    table=??(lr_out_snat        ), priority=163  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1") &&
> ip4.dst == $disallowed_range), action=(next;)
> >>>  ])
> >>>
> >>> @@ -1087,8 +1085,7 @@ AT_CAPTURE_FILE([crflows2])
> >>>  AT_CHECK([grep -e "lr_out_snat" drflows3 | sed 's/table=../table=??/'
> | sort], [0], [dnl
> >>>    table=??(lr_out_snat        ), priority=0    , match=(1),
> action=(next;)
> >>>    table=??(lr_out_snat        ), priority=120  , match=(nd_ns),
> action=(next;)
> >>> -  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1") &&
> ip4.dst == $allowed_range), action=(ct_snat_in_czone(172.16.1.2);)
> >>> -  table=??(lr_out_snat        ), priority=162  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1") &&
> ip4.dst == $allowed_range && reg9[[4]] == 1), action=(reg9[[4]] = 0;
> ct_snat(172.16.1.2);)
> >>> +  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1") &&
> ip4.dst == $allowed_range), action=(ct_snat(172.16.1.2);)
> >>>  ])
> >>>
> >>>  AT_CHECK([grep -e "lr_out_snat" crflows3 | sed 's/table=../table=??/'
> | sort], [0], [dnl
> >>> @@ -1115,8 +1112,7 @@ AT_CAPTURE_FILE([crflows2])
> >>>  AT_CHECK([grep -e "lr_out_snat" drflows4 | sed 's/table=../table=??/'
> | sort], [0], [dnl
> >>>    table=??(lr_out_snat        ), priority=0    , match=(1),
> action=(next;)
> >>>    table=??(lr_out_snat        ), priority=120  , match=(nd_ns),
> action=(next;)
> >>> -  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_snat_in_czone(172.16.1.2);)
> >>> -  table=??(lr_out_snat        ), priority=162  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1") &&
> reg9[[4]] == 1), action=(reg9[[4]] = 0; ct_snat(172.16.1.2);)
> >>> +  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_snat(172.16.1.2);)
> >>>    table=??(lr_out_snat        ), priority=163  , match=(ip && ip4.src
> == 50.0.0.11 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1") &&
> ip4.dst == $disallowed_range), action=(next;)
> >>>  ])
> >>>
> >>> @@ -5144,6 +5140,9 @@ ovn-nbctl lsp-add public public-lr0 -- set
> Logical_Switch_Port public-lr0 \
> >>>      type=router options:router-port=lr0-public \
> >>>      -- lsp-set-addresses public-lr0 router
> >>>
> >>> +# Common zone for DGP
> >>> +
> >>> +check ovn-nbctl set nb_global . options:use_common_zone="true"
> >>>  check ovn-nbctl --wait=sb sync
> >>>
> >>>  ovn-sbctl dump-flows lr0 > lr0flows
> >>> @@ -5196,6 +5195,51 @@ AT_CHECK([grep "lr_out_snat" lr0flows | sed
> 's/table=./table=?/' | sort], [0], [
> >>>    table=? (lr_out_snat        ), priority=162  , match=(ip && ip4.src
> == 10.0.0.3 && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public") && reg9[[4]] == 1), action=(reg9[[4]]
> = 0; ct_snat(172.168.0.20);)
> >>>  ])
> >>>
> >>> +# Separate zones for DGP
> >>> +
> >>> +check ovn-nbctl remove nb_global . options use_common_zone
> >>> +check ovn-nbctl --wait=sb sync
> >>> +
> >>> +ovn-sbctl dump-flows lr0 > lr0flows
> >>> +AT_CAPTURE_FILE([lr0flows])
> >>> +
> >>> +AT_CHECK([grep "lr_in_unsnat" lr0flows | sort], [0], [dnl
> >>> +  table=4 (lr_in_unsnat       ), priority=0    , match=(1),
> action=(next;)
> >>> +  table=4 (lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 172.168.0.10 && inport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_snat;)
> >>> +  table=4 (lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 172.168.0.20 && inport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_snat;)
> >>> +  table=4 (lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 172.168.0.30 && inport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_snat;)
> >>> +])
> >>> +
> >>> +AT_CHECK([grep "lr_in_defrag" lr0flows | sort], [0], [dnl
> >>> +  table=5 (lr_in_defrag       ), priority=0    , match=(1),
> action=(next;)
> >>> +])
> >>> +
> >>> +AT_CHECK([grep "lr_in_dnat" lr0flows | sort], [0], [dnl
> >>> +  table=7 (lr_in_dnat         ), priority=0    , match=(1),
> action=(next;)
> >>> +  table=7 (lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 172.168.0.20 && inport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat(10.0.0.3);)
> >>> +])
> >>> +
> >>> +AT_CHECK([grep "lr_out_chk_dnat_local" lr0flows | sed
> 's/table=./table=?/' | sort], [0], [dnl
> >>> +  table=? (lr_out_chk_dnat_local), priority=0    , match=(1),
> action=(reg9[[4]] = 0; next;)
> >>> +])
> >>> +
> >>> +AT_CHECK([grep "lr_out_undnat" lr0flows | sed 's/table=./table=?/' |
> sort], [0], [dnl
> >>> +  table=? (lr_out_undnat      ), priority=0    , match=(1),
> action=(next;)
> >>> +  table=? (lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 10.0.0.3 && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat;)
> >>> +])
> >>> +
> >>> +AT_CHECK([grep "lr_out_post_undnat" lr0flows | sed
> 's/table=./table=?/' | sort], [0], [dnl
> >>> +  table=? (lr_out_post_undnat ), priority=0    , match=(1),
> action=(next;)
> >>> +])
> >>> +
> >>> +AT_CHECK([grep "lr_out_snat" lr0flows | sed 's/table=./table=?/' |
> sort], [0], [dnl
> >>> +  table=? (lr_out_snat        ), priority=0    , match=(1),
> action=(next;)
> >>> +  table=? (lr_out_snat        ), priority=120  , match=(nd_ns),
> action=(next;)
> >>> +  table=? (lr_out_snat        ), priority=153  , match=(ip && ip4.src
> == 10.0.0.0/24 && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_snat(172.168.0.10);)
> >>> +  table=? (lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 10.0.0.10 && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_snat(172.168.0.30);)
> >>> +  table=? (lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 10.0.0.3 && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_snat(172.168.0.20);)
> >>> +])
> >>> +
> >>>  # Associate load balancer to lr0
> >>>
> >>>  check ovn-nbctl lb-add lb0 172.168.0.100:8082 "10.0.0.50:82,
> 10.0.0.60:82"
> >>> @@ -5207,6 +5251,10 @@ check ovn-nbctl lb-add lb2 172.168.0.210:60 "
> 10.0.0.50:6062,10.0.0.60:6062" udp
> >>>  check ovn-nbctl lr-lb-add lr0 lb0
> >>>  check ovn-nbctl lr-lb-add lr0 lb1
> >>>  check ovn-nbctl lr-lb-add lr0 lb2
> >>> +
> >>> +# Common zone for DGP
> >>> +
> >>> +check ovn-nbctl set nb_global . options:use_common_zone="true"
> >>>  check ovn-nbctl --wait=sb sync
> >>>
> >>>  ovn-sbctl dump-flows lr0 > lr0flows
> >>> @@ -5256,10 +5304,10 @@ AT_CHECK([grep "lr_out_chk_dnat_local"
> lr0flows | sed 's/table=./table=?/' | sor
> >>>  AT_CHECK([grep "lr_out_undnat" lr0flows | sed 's/table=./table=?/' |
> sort], [0], [dnl
> >>>    table=? (lr_out_undnat      ), priority=0    , match=(1),
> action=(next;)
> >>>    table=? (lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 10.0.0.3 && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat_in_czone;)
> >>> -  table=? (lr_out_undnat      ), priority=120  , match=(ip4 &&
> ((ip4.src == 10.0.0.4 && tcp.src == 8080)) && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat_in_czone;)
> >>> -  table=? (lr_out_undnat      ), priority=120  , match=(ip4 &&
> ((ip4.src == 10.0.0.50 && tcp.src == 82) || (ip4.src == 10.0.0.60 &&
> tcp.src == 82)) && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat_in_czone;)
> >>> -  table=? (lr_out_undnat      ), priority=120  , match=(ip4 &&
> ((ip4.src == 10.0.0.50 && udp.src == 6062) || (ip4.src == 10.0.0.60 &&
> udp.src == 6062)) && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat_in_czone;)
> >>> -  table=? (lr_out_undnat      ), priority=120  , match=(ip4 &&
> ((ip4.src == 10.0.0.80) || (ip4.src == 10.0.0.81)) && outport ==
> "lr0-public" && is_chassis_resident("cr-lr0-public")),
> action=(ct_dnat_in_czone;)
> >>> +  table=? (lr_out_undnat      ), priority=120  , match=(ip4 &&
> ((ip4.src == 10.0.0.4 && tcp.src == 8080)) && (inport == "lr0-public" ||
> outport == "lr0-public") && is_chassis_resident("cr-lr0-public")),
> action=(ct_dnat_in_czone;)
> >>> +  table=? (lr_out_undnat      ), priority=120  , match=(ip4 &&
> ((ip4.src == 10.0.0.50 && tcp.src == 82) || (ip4.src == 10.0.0.60 &&
> tcp.src == 82)) && (inport == "lr0-public" || outport == "lr0-public") &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat_in_czone;)
> >>> +  table=? (lr_out_undnat      ), priority=120  , match=(ip4 &&
> ((ip4.src == 10.0.0.50 && udp.src == 6062) || (ip4.src == 10.0.0.60 &&
> udp.src == 6062)) && (inport == "lr0-public" || outport == "lr0-public") &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat_in_czone;)
> >>> +  table=? (lr_out_undnat      ), priority=120  , match=(ip4 &&
> ((ip4.src == 10.0.0.80) || (ip4.src == 10.0.0.81)) && (inport ==
> "lr0-public" || outport == "lr0-public") &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat_in_czone;)
> >>>  ])
> >>>
> >>>  AT_CHECK([grep "lr_out_post_undnat" lr0flows | sed
> 's/table=./table=?/' | sort], [0], [dnl
> >>> @@ -5277,6 +5325,69 @@ AT_CHECK([grep "lr_out_snat" lr0flows | sed
> 's/table=./table=?/' | sort], [0], [
> >>>    table=? (lr_out_snat        ), priority=162  , match=(ip && ip4.src
> == 10.0.0.3 && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public") && reg9[[4]] == 1), action=(reg9[[4]]
> = 0; ct_snat(172.168.0.20);)
> >>>  ])
> >>>
> >>> +# Separate zones for DGP
> >>> +
> >>> +check ovn-nbctl remove nb_global . options use_common_zone
> >>> +check ovn-nbctl --wait=sb sync
> >>> +
> >>> +ovn-sbctl dump-flows lr0 > lr0flows
> >>> +AT_CAPTURE_FILE([lr0flows])
> >>> +
> >>> +AT_CHECK([grep "lr_in_unsnat" lr0flows | sort], [0], [dnl
> >>> +  table=4 (lr_in_unsnat       ), priority=0    , match=(1),
> action=(next;)
> >>> +  table=4 (lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 172.168.0.10 && inport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_snat;)
> >>> +  table=4 (lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 172.168.0.20 && inport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_snat;)
> >>> +  table=4 (lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 172.168.0.30 && inport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_snat;)
> >>> +])
> >>> +
> >>> +AT_CHECK([grep "lr_in_defrag" lr0flows | sort], [0], [dnl
> >>> +  table=5 (lr_in_defrag       ), priority=0    , match=(1),
> action=(next;)
> >>> +  table=5 (lr_in_defrag       ), priority=100  , match=(ip && ip4.dst
> == 10.0.0.10), action=(ct_dnat;)
> >>> +  table=5 (lr_in_defrag       ), priority=100  , match=(ip && ip4.dst
> == 172.168.0.100), action=(ct_dnat;)
> >>> +  table=5 (lr_in_defrag       ), priority=100  , match=(ip && ip4.dst
> == 172.168.0.200), action=(ct_dnat;)
> >>> +  table=5 (lr_in_defrag       ), priority=100  , match=(ip && ip4.dst
> == 172.168.0.210), action=(ct_dnat;)
> >>> +])
> >>> +
> >>> +AT_CHECK([grep "lr_in_dnat" lr0flows | sort], [0], [dnl
> >>> +  table=7 (lr_in_dnat         ), priority=0    , match=(1),
> action=(next;)
> >>> +  table=7 (lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 172.168.0.20 && inport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat(10.0.0.3);)
> >>> +  table=7 (lr_in_dnat         ), priority=110  , match=(ct.new &&
> !ct.rel && ip4 && ip4.dst == 172.168.0.200 &&
> is_chassis_resident("cr-lr0-public")),
> action=(ct_lb_mark(backends=10.0.0.80,10.0.0.81);)
> >>> +  table=7 (lr_in_dnat         ), priority=120  , match=(ct.new &&
> !ct.rel && ip4 && ip4.dst == 10.0.0.10 && tcp && tcp.dst == 80 &&
> is_chassis_resident("cr-lr0-public")),
> action=(ct_lb_mark(backends=10.0.0.4:8080);)
> >>> +  table=7 (lr_in_dnat         ), priority=120  , match=(ct.new &&
> !ct.rel && ip4 && ip4.dst == 172.168.0.100 && tcp && tcp.dst == 8082 &&
> is_chassis_resident("cr-lr0-public")), action=(ct_lb_mark(backends=
> 10.0.0.50:82,10.0.0.60:82);)
> >>> +  table=7 (lr_in_dnat         ), priority=120  , match=(ct.new &&
> !ct.rel && ip4 && ip4.dst == 172.168.0.210 && udp && udp.dst == 60 &&
> is_chassis_resident("cr-lr0-public")), action=(ct_lb_mark(backends=
> 10.0.0.50:6062,10.0.0.60:6062);)
> >>> +  table=7 (lr_in_dnat         ), priority=50   , match=(ct.est &&
> !ct.rel && !ct.new && ct_mark.natted), action=(next;)
> >>> +  table=7 (lr_in_dnat         ), priority=50   , match=(ct.rel &&
> !ct.est && !ct.new), action=(ct_commit_nat;)
> >>> +  table=7 (lr_in_dnat         ), priority=70   , match=(ct.est &&
> !ct.rel && !ct.new && ct_mark.natted && ct_mark.force_snat == 1),
> action=(flags.force_snat_for_lb = 1; next;)
> >>> +  table=7 (lr_in_dnat         ), priority=70   , match=(ct.est &&
> !ct.rel && !ct.new && ct_mark.natted && ct_mark.skip_snat == 1),
> action=(flags.skip_snat_for_lb = 1; next;)
> >>> +  table=7 (lr_in_dnat         ), priority=70   , match=(ct.rel &&
> !ct.est && !ct.new && ct_mark.force_snat == 1),
> action=(flags.force_snat_for_lb = 1; ct_commit_nat;)
> >>> +  table=7 (lr_in_dnat         ), priority=70   , match=(ct.rel &&
> !ct.est && !ct.new && ct_mark.skip_snat == 1),
> action=(flags.skip_snat_for_lb = 1; ct_commit_nat;)
> >>> +])
> >>> +
> >>> +AT_CHECK([grep "lr_out_chk_dnat_local" lr0flows | sed
> 's/table=./table=?/' | sort], [0], [dnl
> >>> +  table=? (lr_out_chk_dnat_local), priority=0    , match=(1),
> action=(reg9[[4]] = 0; next;)
> >>> +])
> >>> +
> >>> +AT_CHECK([grep "lr_out_undnat" lr0flows | sed 's/table=./table=?/' |
> sort], [0], [dnl
> >>> +  table=? (lr_out_undnat      ), priority=0    , match=(1),
> action=(next;)
> >>> +  table=? (lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 10.0.0.3 && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat;)
> >>> +  table=? (lr_out_undnat      ), priority=120  , match=(ip4 &&
> ((ip4.src == 10.0.0.4 && tcp.src == 8080)) && (inport == "lr0-public" ||
> outport == "lr0-public") && is_chassis_resident("cr-lr0-public")),
> action=(ct_dnat;)
> >>> +  table=? (lr_out_undnat      ), priority=120  , match=(ip4 &&
> ((ip4.src == 10.0.0.50 && tcp.src == 82) || (ip4.src == 10.0.0.60 &&
> tcp.src == 82)) && (inport == "lr0-public" || outport == "lr0-public") &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat;)
> >>> +  table=? (lr_out_undnat      ), priority=120  , match=(ip4 &&
> ((ip4.src == 10.0.0.50 && udp.src == 6062) || (ip4.src == 10.0.0.60 &&
> udp.src == 6062)) && (inport == "lr0-public" || outport == "lr0-public") &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat;)
> >>> +  table=? (lr_out_undnat      ), priority=120  , match=(ip4 &&
> ((ip4.src == 10.0.0.80) || (ip4.src == 10.0.0.81)) && (inport ==
> "lr0-public" || outport == "lr0-public") &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat;)
> >>> +])
> >>> +
> >>> +AT_CHECK([grep "lr_out_post_undnat" lr0flows | sed
> 's/table=./table=?/' | sort], [0], [dnl
> >>> +  table=? (lr_out_post_undnat ), priority=0    , match=(1),
> action=(next;)
> >>> +])
> >>> +
> >>> +AT_CHECK([grep "lr_out_snat" lr0flows | sed 's/table=./table=?/' |
> sort], [0], [dnl
> >>> +  table=? (lr_out_snat        ), priority=0    , match=(1),
> action=(next;)
> >>> +  table=? (lr_out_snat        ), priority=120  , match=(nd_ns),
> action=(next;)
> >>> +  table=? (lr_out_snat        ), priority=153  , match=(ip && ip4.src
> == 10.0.0.0/24 && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_snat(172.168.0.10);)
> >>> +  table=? (lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 10.0.0.10 && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_snat(172.168.0.30);)
> >>> +  table=? (lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 10.0.0.3 && outport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_snat(172.168.0.20);)
> >>> +])
> >>> +
> >>>  # Make the logical router as Gateway router
> >>>  check ovn-nbctl clear logical_router_port lr0-public gateway_chassis
> >>>  check ovn-nbctl set logical_router lr0 options:chassis=gw1
> >>> @@ -5318,7 +5429,6 @@ AT_CHECK([grep "lr_in_dnat" lr0flows | sort],
> [0], [dnl
> >>>
> >>>  AT_CHECK([grep "lr_out_chk_dnat_local" lr0flows | sed
> 's/table=./table=?/' | sort], [0], [dnl
> >>>    table=? (lr_out_chk_dnat_local), priority=0    , match=(1),
> action=(reg9[[4]] = 0; next;)
> >>> -  table=? (lr_out_chk_dnat_local), priority=50   , match=(ip &&
> ct_mark.natted == 1), action=(reg9[[4]] = 1; next;)
> >>>  ])
> >>>
> >>>  AT_CHECK([grep "lr_out_undnat" lr0flows | sed 's/table=./table=?/' |
> sort], [0], [dnl
> >>> @@ -5382,7 +5492,6 @@ AT_CHECK([grep "lr_in_dnat" lr0flows | sort],
> [0], [dnl
> >>>
> >>>  AT_CHECK([grep "lr_out_chk_dnat_local" lr0flows | sed
> 's/table=./table=?/' | sort], [0], [dnl
> >>>    table=? (lr_out_chk_dnat_local), priority=0    , match=(1),
> action=(reg9[[4]] = 0; next;)
> >>> -  table=? (lr_out_chk_dnat_local), priority=50   , match=(ip &&
> ct_mark.natted == 1), action=(reg9[[4]] = 1; next;)
> >>>  ])
> >>>
> >>>  AT_CHECK([grep "lr_out_undnat" lr0flows | sed 's/table=./table=?/' |
> sort], [0], [dnl
> >>> @@ -5450,7 +5559,6 @@ AT_CHECK([grep "lr_in_dnat" lr0flows | sort],
> [0], [dnl
> >>>
> >>>  AT_CHECK([grep "lr_out_chk_dnat_local" lr0flows | sed
> 's/table=./table=?/' | sort], [0], [dnl
> >>>    table=? (lr_out_chk_dnat_local), priority=0    , match=(1),
> action=(reg9[[4]] = 0; next;)
> >>> -  table=? (lr_out_chk_dnat_local), priority=50   , match=(ip &&
> ct_mark.natted == 1), action=(reg9[[4]] = 1; next;)
> >>>  ])
> >>>
> >>>  AT_CHECK([grep "lr_out_undnat" lr0flows | sed 's/table=./table=?/' |
> sort], [0], [dnl
> >>> @@ -5530,7 +5638,6 @@ AT_CHECK([grep "lr_in_dnat" lr0flows | sort],
> [0], [dnl
> >>>
> >>>  AT_CHECK([grep "lr_out_chk_dnat_local" lr0flows | sed
> 's/table=./table=?/' | sort], [0], [dnl
> >>>    table=? (lr_out_chk_dnat_local), priority=0    , match=(1),
> action=(reg9[[4]] = 0; next;)
> >>> -  table=? (lr_out_chk_dnat_local), priority=50   , match=(ip &&
> ct_mark.natted == 1), action=(reg9[[4]] = 1; next;)
> >>>  ])
> >>>
> >>>  AT_CHECK([grep "lr_out_undnat" lr0flows | sed 's/table=./table=?/' |
> sort], [0], [dnl
> >>> @@ -7056,21 +7163,15 @@ AT_CHECK([grep lr_in_ip_input lrflows | grep
> arp | grep -e 172.16.1.10 -e 10.0.0
> >>>  ])
> >>>
> >>>  AT_CHECK([grep lr_in_unsnat lrflows | grep ct_snat | sed
> 's/table=../table=??/' | sort], [0], [dnl
> >>> -  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 10.0.0.10 && inport == "DR-S2" && flags.loopback == 0 &&
> is_chassis_resident("cr-DR-S2")), action=(ct_snat_in_czone;)
> >>> -  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 10.0.0.10 && inport == "DR-S2" && flags.loopback == 1 &&
> flags.use_snat_zone == 1 && is_chassis_resident("cr-DR-S2")),
> action=(ct_snat;)
> >>> -  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 172.16.1.10 && inport == "DR-S1" && flags.loopback == 0 &&
> is_chassis_resident("cr-DR-S1")), action=(ct_snat_in_czone;)
> >>> -  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 172.16.1.10 && inport == "DR-S1" && flags.loopback == 1 &&
> flags.use_snat_zone == 1 && is_chassis_resident("cr-DR-S1")),
> action=(ct_snat;)
> >>> -  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 192.168.0.10 && inport == "DR-S3" && flags.loopback == 0 &&
> is_chassis_resident("cr-DR-S3")), action=(ct_snat_in_czone;)
> >>> -  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 192.168.0.10 && inport == "DR-S3" && flags.loopback == 1 &&
> flags.use_snat_zone == 1 && is_chassis_resident("cr-DR-S3")),
> action=(ct_snat;)
> >>> +  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 10.0.0.10 && inport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_snat;)
> >>> +  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 172.16.1.10 && inport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_snat;)
> >>> +  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 192.168.0.10 && inport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_snat;)
> >>>  ])
> >>>
> >>>  AT_CHECK([grep lr_out_snat lrflows | grep ct_snat | sed
> 's/table=../table=??/' | sort], [0], [dnl
> >>> -  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_snat_in_czone(172.16.1.10);)
> >>> -  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_snat_in_czone(10.0.0.10);)
> >>> -  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_snat_in_czone(192.168.0.10);)
> >>> -  table=??(lr_out_snat        ), priority=162  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1") &&
> reg9[[4]] == 1), action=(reg9[[4]] = 0; ct_snat(172.16.1.10);)
> >>> -  table=??(lr_out_snat        ), priority=162  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S2" && is_chassis_resident("cr-DR-S2") &&
> reg9[[4]] == 1), action=(reg9[[4]] = 0; ct_snat(10.0.0.10);)
> >>> -  table=??(lr_out_snat        ), priority=162  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S3" && is_chassis_resident("cr-DR-S3") &&
> reg9[[4]] == 1), action=(reg9[[4]] = 0; ct_snat(192.168.0.10);)
> >>> +  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_snat(172.16.1.10);)
> >>> +  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_snat(10.0.0.10);)
> >>> +  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_snat(192.168.0.10);)
> >>>  ])
> >>>
> >>>  check ovn-nbctl --wait=sb lr-nat-del DR snat 20.0.0.10
> >>> @@ -7099,15 +7200,15 @@ AT_CHECK([grep lr_in_ip_input lrflows | grep
> arp | grep -e 172.16.1.10 -e 10.0.0
> >>>  ])
> >>>
> >>>  AT_CHECK([grep lr_in_dnat lrflows | grep ct_dnat | sed
> 's/table=../table=??/' | sort], [0], [dnl
> >>> -  table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 10.0.0.10 && inport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_dnat_in_czone(20.0.0.10);)
> >>> -  table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 172.16.1.10 && inport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_dnat_in_czone(20.0.0.10);)
> >>> -  table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 172.16.1.10 && inport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_dnat_in_czone(20.0.0.10);)
> >>> +  table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 10.0.0.10 && inport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_dnat(20.0.0.10);)
> >>> +  table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 172.16.1.10 && inport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_dnat(20.0.0.10);)
> >>> +  table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 172.16.1.10 && inport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_dnat(20.0.0.10);)
> >>>  ])
> >>>
> >>>  AT_CHECK([grep lr_out_undnat lrflows | grep ct_dnat | sed
> 's/table=../table=??/' | sort], [0], [dnl
> >>> -  table=??(lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_dnat_in_czone;)
> >>> -  table=??(lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_dnat_in_czone;)
> >>> -  table=??(lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_dnat_in_czone;)
> >>> +  table=??(lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_dnat;)
> >>> +  table=??(lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_dnat;)
> >>> +  table=??(lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_dnat;)
> >>>  ])
> >>>
> >>>  check ovn-nbctl --wait=sb lr-nat-del DR dnat
> >>> @@ -7138,33 +7239,27 @@ AT_CHECK([grep lr_in_ip_input lrflows | grep
> arp | grep -e 172.16.1.10 -e 10.0.0
> >>>  ])
> >>>
> >>>  AT_CHECK([grep lr_in_unsnat lrflows | grep ct_snat | sed
> 's/table=../table=??/' | sort], [0], [dnl
> >>> -  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 10.0.0.10 && inport == "DR-S2" && flags.loopback == 0 &&
> is_chassis_resident("cr-DR-S2")), action=(ct_snat_in_czone;)
> >>> -  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 10.0.0.10 && inport == "DR-S2" && flags.loopback == 1 &&
> flags.use_snat_zone == 1 && is_chassis_resident("cr-DR-S2")),
> action=(ct_snat;)
> >>> -  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 172.16.1.10 && inport == "DR-S1" && flags.loopback == 0 &&
> is_chassis_resident("cr-DR-S1")), action=(ct_snat_in_czone;)
> >>> -  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 172.16.1.10 && inport == "DR-S1" && flags.loopback == 1 &&
> flags.use_snat_zone == 1 && is_chassis_resident("cr-DR-S1")),
> action=(ct_snat;)
> >>> -  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 192.168.0.10 && inport == "DR-S3" && flags.loopback == 0 &&
> is_chassis_resident("cr-DR-S3")), action=(ct_snat_in_czone;)
> >>> -  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 192.168.0.10 && inport == "DR-S3" && flags.loopback == 1 &&
> flags.use_snat_zone == 1 && is_chassis_resident("cr-DR-S3")),
> action=(ct_snat;)
> >>> +  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 10.0.0.10 && inport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_snat;)
> >>> +  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 172.16.1.10 && inport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_snat;)
> >>> +  table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst
> == 192.168.0.10 && inport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_snat;)
> >>>  ])
> >>>
> >>>  AT_CHECK([grep lr_out_snat lrflows | grep ct_snat | sed
> 's/table=../table=??/' | sort], [0], [dnl
> >>> -  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_snat_in_czone(172.16.1.10);)
> >>> -  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_snat_in_czone(10.0.0.10);)
> >>> -  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_snat_in_czone(192.168.0.10);)
> >>> -  table=??(lr_out_snat        ), priority=162  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1") &&
> reg9[[4]] == 1), action=(reg9[[4]] = 0; ct_snat(172.16.1.10);)
> >>> -  table=??(lr_out_snat        ), priority=162  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S2" && is_chassis_resident("cr-DR-S2") &&
> reg9[[4]] == 1), action=(reg9[[4]] = 0; ct_snat(10.0.0.10);)
> >>> -  table=??(lr_out_snat        ), priority=162  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S3" && is_chassis_resident("cr-DR-S3") &&
> reg9[[4]] == 1), action=(reg9[[4]] = 0; ct_snat(192.168.0.10);)
> >>> +  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_snat(172.16.1.10);)
> >>> +  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_snat(10.0.0.10);)
> >>> +  table=??(lr_out_snat        ), priority=161  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_snat(192.168.0.10);)
> >>>  ])
> >>>
> >>>  AT_CHECK([grep lr_in_dnat lrflows | grep ct_dnat | sed
> 's/table=../table=??/' | sort], [0], [dnl
> >>> -  table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 10.0.0.10 && inport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_dnat_in_czone(20.0.0.10);)
> >>> -  table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 172.16.1.10 && inport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_dnat_in_czone(20.0.0.10);)
> >>> -  table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 192.168.0.10 && inport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_dnat_in_czone(20.0.0.10);)
> >>> +  table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 10.0.0.10 && inport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_dnat(20.0.0.10);)
> >>> +  table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 172.16.1.10 && inport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_dnat(20.0.0.10);)
> >>> +  table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst
> == 192.168.0.10 && inport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_dnat(20.0.0.10);)
> >>>  ])
> >>>
> >>>  AT_CHECK([grep lr_out_undnat lrflows | grep ct_dnat | sed
> 's/table=../table=??/' | sort], [0], [dnl
> >>> -  table=??(lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_dnat_in_czone;)
> >>> -  table=??(lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_dnat_in_czone;)
> >>> -  table=??(lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_dnat_in_czone;)
> >>> +  table=??(lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> action=(ct_dnat;)
> >>> +  table=??(lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> action=(ct_dnat;)
> >>> +  table=??(lr_out_undnat      ), priority=100  , match=(ip && ip4.src
> == 20.0.0.10 && outport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> action=(ct_dnat;)
> >>>  ])
> >>>
> >>>  check ovn-nbctl --wait=sb lr-nat-del DR dnat_and_snat
> >>> diff --git a/tests/ovn.at b/tests/ovn.at
> >>> index a892691ca..a56e32f55 100644
> >>> --- a/tests/ovn.at
> >>> +++ b/tests/ovn.at
> >>> @@ -33566,6 +33566,9 @@ check ovn-nbctl lrp-set-gateway-chassis
> lr0-ext hv1
> >>>  check ovn-nbctl lr-nat-add lr0 snat 172.16.0.2 10.0.0.0/24
> >>>  check ovn-nbctl lr-nat-add lr0 dnat 172.16.0.2 10.0.0.2
> >>>
> >>> +# Use common zone
> >>> +check ovn-nbctl set nb_global . options:use_common_zone="true"
> >>> +
> >>>  check ovn-nbctl --wait=hv sync
> >>>  # Use constants so that if tables or registers change, this test can
> >>>  # be updated easily.
> >>> diff --git a/tests/system-ovn-kmod.at b/tests/system-ovn-kmod.at
> >>> index c1272d5ef..981cc598c 100644
> >>> --- a/tests/system-ovn-kmod.at
> >>> +++ b/tests/system-ovn-kmod.at
> >>> @@ -928,6 +928,172 @@ EOF
> >>>  OVS_WAIT_UNTIL([test "$(cat server.pcap | wc -l)" = "4"])
> >>>
> >>>
> >>> +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >>> +
> >>> +as ovn-sb
> >>> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >>> +
> >>> +as ovn-nb
> >>> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >>> +
> >>> +as northd
> >>> +OVS_APP_EXIT_AND_WAIT([NORTHD_TYPE])
> >>> +
> >>> +as
> >>> +OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
> >>> +/connection dropped.*/d"])
> >>> +AT_CLEANUP
> >>> +])
> >>> +
> >>> +OVN_FOR_EACH_NORTHD([
> >>> +AT_SETUP([SNAT in separate zone from DNAT])
> >>> +
>
> Please mention explicitly in the commit message the fact that we skip
> this test for the userspace datapath.  Also, please mention why.
>

Done in v7.


>
> >>> +AT_SKIP_IF([test $HAVE_NC = no])
> >>> +CHECK_CONNTRACK()
> >>> +CHECK_CONNTRACK_NAT()
> >>> +ovn_start
> >>> +OVS_TRAFFIC_VSWITCHD_START()
> >>> +ADD_BR([br-int])
> >>> +
> >>> +# Set external-ids in br-int needed for ovn-controller
> >>> +ovs-vsctl \
> >>> +        -- set Open_vSwitch . external-ids:system-id=hv1 \
> >>> +        -- set Open_vSwitch .
> external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
> >>> +        -- set Open_vSwitch . external-ids:ovn-encap-type=geneve \
> >>> +        -- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \
> >>> +        -- set bridge br-int fail-mode=secure
> other-config:disable-in-band=true
> >>> +
> >>> +# The goal of this test is to ensure that when traffic is first
> DNATted
> >>> +# (by way of a load balancer), and then SNATted, the SNAT happens in a
> >>> +# separate conntrack zone from the DNAT.
> >>> +
> >>> +start_daemon ovn-controller
> >>> +
> >>> +check ovn-nbctl ls-add public
> >>> +
> >>> +check ovn-nbctl lr-add r1
> >>> +check ovn-nbctl lrp-add r1 r1_public 00:de:ad:ff:00:01 172.16.0.1/16
> >>> +check ovn-nbctl lrp-add r1 r1_s1 00:de:ad:fe:00:01 173.0.1.1/24
> >>> +check ovn-nbctl lrp-set-gateway-chassis r1_public hv1
> >>> +
> >>> +check ovn-nbctl lb-add r1_lb 30.0.0.1 172.16.0.102
> >>> +check ovn-nbctl lr-lb-add r1 r1_lb
> >>> +
> >>> +check ovn-nbctl ls-add s1
> >>> +check ovn-nbctl lsp-add s1 s1_r1
> >>> +check ovn-nbctl lsp-set-type s1_r1 router
> >>> +check ovn-nbctl lsp-set-addresses s1_r1 router
> >>> +check ovn-nbctl lsp-set-options s1_r1 router-port=r1_s1
> >>> +
> >>> +check ovn-nbctl lsp-add s1 vm1
> >>> +check ovn-nbctl lsp-set-addresses vm1 "00:de:ad:01:00:01 173.0.1.2"
> >>> +
> >>> +check ovn-nbctl lsp-add public public_r1
> >>> +check ovn-nbctl lsp-set-type public_r1 router
> >>> +check ovn-nbctl lsp-set-addresses public_r1 router
> >>> +check ovn-nbctl lsp-set-options public_r1 router-port=r1_public
> nat-addresses=router
> >>> +
> >>> +check ovn-nbctl lr-add r2
> >>> +check ovn-nbctl lrp-add r2 r2_public 00:de:ad:ff:00:02 172.16.0.2/16
> >>> +check ovn-nbctl lrp-add r2 r2_s2 00:de:ad:fe:00:02 173.0.2.1/24
> >>> +check ovn-nbctl lr-nat-add r2 dnat_and_snat 172.16.0.102 173.0.2.2
> >>> +check ovn-nbctl lrp-set-gateway-chassis r2_public hv1
> >>> +
> >>> +check ovn-nbctl ls-add s2
> >>> +check ovn-nbctl lsp-add s2 s2_r2
> >>> +check ovn-nbctl lsp-set-type s2_r2 router
> >>> +check ovn-nbctl lsp-set-addresses s2_r2 router
> >>> +check ovn-nbctl lsp-set-options s2_r2 router-port=r2_s2
> >>> +
> >>> +check ovn-nbctl lsp-add s2 vm2
> >>> +check ovn-nbctl lsp-set-addresses vm2 "00:de:ad:01:00:02 173.0.2.2"
> >>> +
> >>> +check ovn-nbctl lsp-add public public_r2
> >>> +check ovn-nbctl lsp-set-type public_r2 router
> >>> +check ovn-nbctl lsp-set-addresses public_r2 router
> >>> +check ovn-nbctl lsp-set-options public_r2 router-port=r2_public
> nat-addresses=router
> >>> +
> >>> +ADD_NAMESPACES(vm1)
> >>> +ADD_VETH(vm1, vm1, br-int, "173.0.1.2/24", "00:de:ad:01:00:01", \
> >>> +         "173.0.1.1")
> >>> +ADD_NAMESPACES(vm2)
> >>> +ADD_VETH(vm2, vm2, br-int, "173.0.2.2/24", "00:de:ad:01:00:02", \
> >>> +         "173.0.2.1")
> >>> +
> >>> +check ovn-nbctl lr-nat-add r1 dnat_and_snat 172.16.0.101 173.0.1.2
> vm1 00:00:00:01:02:03
> >>> +
> >>> +wait_for_ports_up
> >>> +check ovn-nbctl --wait=hv sync
> >>> +
> >>> +# Create service that listens for TCP and UDP
> >>> +NETNS_DAEMONIZE([vm2], [nc -l -u 1234], [nc0.pid])
> >>> +NETNS_DAEMONIZE([vm2], [nc -l -k 1235], [nc1.pid])
> >>> +
> >>> +test_icmp() {
> >>> +    # Make sure that a ping works as expected
> >>> +    NS_CHECK_EXEC([vm1], [ping -c 3 -i 0.3 -w 2 30.0.0.1 |
> FORMAT_PING], \
> >>> +    [0], [dnl
> >>> +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >>> +])
> >>> +
> >>> +    # Finally, make sure that conntrack shows two separate zones
> being used for
> >>> +    # DNAT and SNAT
> >>> +    AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) |
> \
> >>> +    sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
> >>>
> +icmp,orig=(src=173.0.1.2,dst=30.0.0.1,id=<cleared>,type=8,code=0),reply=(src=172.16.0.102,dst=173.0.1.2,id=<cleared>,type=0,code=0),zone=<cleared>,mark=2
> >>> +])
> >>> +
> >>> +    AT_CHECK([ovs-appctl dpctl/dump-conntrack |
> FORMAT_CT(172.16.0.102) | \
> >>> +    sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
> >>>
> +icmp,orig=(src=172.16.0.101,dst=172.16.0.102,id=<cleared>,type=8,code=0),reply=(src=173.0.2.2,dst=172.16.0.101,id=<cleared>,type=0,code=0),zone=<cleared>
> >>>
> +icmp,orig=(src=173.0.1.2,dst=172.16.0.102,id=<cleared>,type=8,code=0),reply=(src=172.16.0.102,dst=172.16.0.101,id=<cleared>,type=0,code=0),zone=<cleared>
> >>> +])
> >>> +}
> >>> +
> >>> +test_udp() {
> >>> +    NS_CHECK_EXEC([vm1], [nc -u 30.0.0.1 1234 -p 1222 -z])
> >>> +
> >>> +    AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) |
> \
> >>> +    sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
> >>>
> +udp,orig=(src=173.0.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=172.16.0.102,dst=173.0.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2
> >>> +])
> >>> +
> >>> +    AT_CHECK([ovs-appctl dpctl/dump-conntrack |
> FORMAT_CT(172.16.0.102) | \
> >>> +    sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
> >>>
> +udp,orig=(src=172.16.0.101,dst=172.16.0.102,sport=<cleared>,dport=<cleared>),reply=(src=173.0.2.2,dst=172.16.0.101,sport=<cleared>,dport=<cleared>),zone=<cleared>
> >>>
> +udp,orig=(src=173.0.1.2,dst=172.16.0.102,sport=<cleared>,dport=<cleared>),reply=(src=172.16.0.102,dst=172.16.0.101,sport=<cleared>,dport=<cleared>),zone=<cleared>
> >>> +])
> >>> +}
> >>> +
> >>> +test_tcp() {
> >>> +    NS_CHECK_EXEC([vm1], [nc 30.0.0.1 1235 -z])
> >>> +
> >>> +    AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) |
> \
> >>> +    sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
> >>>
> +tcp,orig=(src=173.0.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=172.16.0.102,dst=173.0.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> >>> +])
> >>> +
> >>> +    AT_CHECK([ovs-appctl dpctl/dump-conntrack |
> FORMAT_CT(172.16.0.102) | \
> >>> +    sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
> >>>
> +tcp,orig=(src=172.16.0.101,dst=172.16.0.102,sport=<cleared>,dport=<cleared>),reply=(src=173.0.2.2,dst=172.16.0.101,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
> >>>
> +tcp,orig=(src=173.0.1.2,dst=172.16.0.102,sport=<cleared>,dport=<cleared>),reply=(src=172.16.0.102,dst=172.16.0.101,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
> >>> +])
> >>> +}
> >>> +
> >>> +for type in icmp udp tcp; do
> >>> +    AS_BOX([Testing $type])
> >>> +    # First time, when the packet needs to pass through pinctrl
> buffering
> >>> +    check ovs-appctl dpctl/flush-conntrack
> >>> +    ovn-sbctl --all destroy mac_binding
> >>> +    wait_row_count mac_binding 0
> >>> +    test_$type
> >>> +
> >>> +    # Second time with MAC binding being already set
> >>> +    check ovs-appctl dpctl/flush-conntrack
> >>> +    wait_row_count mac_binding 1 ip="172.16.0.102"
> >>> +    test_$type
> >>> +done
> >>> +
> >>>  OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >>>
> >>>  as ovn-sb
> >>> diff --git a/tests/system-ovn.at b/tests/system-ovn.at
> >>> index bcd829c8b..14c2a2555 100644
> >>> --- a/tests/system-ovn.at
> >>> +++ b/tests/system-ovn.at
> >>> @@ -8699,123 +8699,6 @@ OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query
> port patch-.*/d
> >>>  AT_CLEANUP
> >>>  ])
> >>>
> >>> -OVN_FOR_EACH_NORTHD([
> >>> -AT_SETUP([SNAT in separate zone from DNAT])
> >>> -
> >>> -CHECK_CONNTRACK()
> >>> -CHECK_CONNTRACK_NAT()
> >>> -ovn_start
> >>> -OVS_TRAFFIC_VSWITCHD_START()
> >>> -ADD_BR([br-int])
> >>> -
> >>> -# Set external-ids in br-int needed for ovn-controller
> >>> -ovs-vsctl \
> >>> -        -- set Open_vSwitch . external-ids:system-id=hv1 \
> >>> -        -- set Open_vSwitch .
> external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
> >>> -        -- set Open_vSwitch . external-ids:ovn-encap-type=geneve \
> >>> -        -- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \
> >>> -        -- set bridge br-int fail-mode=secure
> other-config:disable-in-band=true
> >>> -
> >>> -# The goal of this test is to ensure that when traffic is first
> DNATted
> >>> -# (by way of a load balancer), and then SNATted, the SNAT happens in a
> >>> -# separate conntrack zone from the DNAT.
> >>> -
> >>> -start_daemon ovn-controller
> >>> -
> >>> -check ovn-nbctl ls-add public
> >>> -
> >>> -check ovn-nbctl lr-add r1
> >>> -check ovn-nbctl lrp-add r1 r1_public 00:de:ad:ff:00:01 172.16.0.1/16
> >>> -check ovn-nbctl lrp-add r1 r1_s1 00:de:ad:fe:00:01 173.0.1.1/24
> >>> -check ovn-nbctl lrp-set-gateway-chassis r1_public hv1
> >>> -
> >>> -check ovn-nbctl lb-add r1_lb 30.0.0.1 172.16.0.102
> >>> -check ovn-nbctl lr-lb-add r1 r1_lb
> >>> -
> >>> -check ovn-nbctl ls-add s1
> >>> -check ovn-nbctl lsp-add s1 s1_r1
> >>> -check ovn-nbctl lsp-set-type s1_r1 router
> >>> -check ovn-nbctl lsp-set-addresses s1_r1 router
> >>> -check ovn-nbctl lsp-set-options s1_r1 router-port=r1_s1
> >>> -
> >>> -check ovn-nbctl lsp-add s1 vm1
> >>> -check ovn-nbctl lsp-set-addresses vm1 "00:de:ad:01:00:01 173.0.1.2"
> >>> -
> >>> -check ovn-nbctl lsp-add public public_r1
> >>> -check ovn-nbctl lsp-set-type public_r1 router
> >>> -check ovn-nbctl lsp-set-addresses public_r1 router
> >>> -check ovn-nbctl lsp-set-options public_r1 router-port=r1_public
> nat-addresses=router
> >>> -
> >>> -check ovn-nbctl lr-add r2
> >>> -check ovn-nbctl lrp-add r2 r2_public 00:de:ad:ff:00:02 172.16.0.2/16
> >>> -check ovn-nbctl lrp-add r2 r2_s2 00:de:ad:fe:00:02 173.0.2.1/24
> >>> -check ovn-nbctl lr-nat-add r2 dnat_and_snat 172.16.0.102 173.0.2.2
> >>> -check ovn-nbctl lrp-set-gateway-chassis r2_public hv1
> >>> -
> >>> -check ovn-nbctl ls-add s2
> >>> -check ovn-nbctl lsp-add s2 s2_r2
> >>> -check ovn-nbctl lsp-set-type s2_r2 router
> >>> -check ovn-nbctl lsp-set-addresses s2_r2 router
> >>> -check ovn-nbctl lsp-set-options s2_r2 router-port=r2_s2
> >>> -
> >>> -check ovn-nbctl lsp-add s2 vm2
> >>> -check ovn-nbctl lsp-set-addresses vm2 "00:de:ad:01:00:02 173.0.2.2"
> >>> -
> >>> -check ovn-nbctl lsp-add public public_r2
> >>> -check ovn-nbctl lsp-set-type public_r2 router
> >>> -check ovn-nbctl lsp-set-addresses public_r2 router
> >>> -check ovn-nbctl lsp-set-options public_r2 router-port=r2_public
> nat-addresses=router
> >>> -
> >>> -ADD_NAMESPACES(vm1)
> >>> -ADD_VETH(vm1, vm1, br-int, "173.0.1.2/24", "00:de:ad:01:00:01", \
> >>> -         "173.0.1.1")
> >>> -ADD_NAMESPACES(vm2)
> >>> -ADD_VETH(vm2, vm2, br-int, "173.0.2.2/24", "00:de:ad:01:00:02", \
> >>> -         "173.0.2.1")
> >>> -
> >>> -check ovn-nbctl lr-nat-add r1 dnat_and_snat 172.16.0.101 173.0.1.2
> vm1 00:00:00:01:02:03
> >>> -check ovn-nbctl --wait=hv sync
> >>> -
> >>> -# Next, make sure that a ping works as expected
> >>> -NS_CHECK_EXEC([vm1], [ping -q -c 3 -i 0.3 -w 2 30.0.0.1 |
> FORMAT_PING], \
> >>> -[0], [dnl
> >>> -3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >>> -])
> >>> -
> >>> -# Finally, make sure that conntrack shows two separate zones being
> used for
> >>> -# DNAT and SNAT
> >>> -AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) | \
> >>> -sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
> >>>
> -icmp,orig=(src=173.0.1.2,dst=30.0.0.1,id=<cleared>,type=8,code=0),reply=(src=172.16.0.102,dst=173.0.1.2,id=<cleared>,type=0,code=0),zone=<cleared>,mark=2
> >>> -])
> >>> -
> >>> -# The final two entries appear identical here. That is because
> FORMAT_CT
> >>> -# scrubs the zone numbers. In actuality, the zone numbers are
> different,
> >>> -# which is why there are two entries.
> >>> -AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(172.16.0.102) |
> \
> >>> -sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
> >>>
> -icmp,orig=(src=172.16.0.101,dst=172.16.0.102,id=<cleared>,type=8,code=0),reply=(src=173.0.2.2,dst=172.16.0.101,id=<cleared>,type=0,code=0),zone=<cleared>
> >>>
> -icmp,orig=(src=173.0.1.2,dst=172.16.0.102,id=<cleared>,type=8,code=0),reply=(src=172.16.0.102,dst=172.16.0.101,id=<cleared>,type=0,code=0),zone=<cleared>
> >>>
> -icmp,orig=(src=173.0.1.2,dst=172.16.0.102,id=<cleared>,type=8,code=0),reply=(src=172.16.0.102,dst=172.16.0.101,id=<cleared>,type=0,code=0),zone=<cleared>
> >>> -])
> >>> -
> >>> -OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >>> -
> >>> -as ovn-sb
> >>> -OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >>> -
> >>> -as ovn-nb
> >>> -OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >>> -
> >>> -as northd
> >>> -OVS_APP_EXIT_AND_WAIT([NORTHD_TYPE])
> >>> -
> >>> -as
> >>> -OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
> >>> -/connection dropped.*/d"])
> >>> -AT_CLEANUP
> >>> -])
> >>> -
> >>>  OVN_FOR_EACH_NORTHD([
> >>>  AT_SETUP([LB - ICMP related traffic])
> >>>
> >>
> >>
> >> _______________________________________________
> >> dev mailing list
> >> [email protected]
> >> https://mail.openvswitch.org/mailman/listinfo/ovs-dev
> >>
> >
>
>
Thanks,
Ales

-- 

Ales Musil

Senior Software Engineer - OVN Core

Red Hat EMEA <https://www.redhat.com>

[email protected]    IM: amusil
<https://red.ht/sig>
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