Hi Dumitru, thanks for your time and review.
I think the idea of adding logical flows for each backend is extremely
inefficient with a large number of backends. Regarding the option: this
was our original approach, but what bothers me about this approach is
that what is the point of having a load balancer if there is a stateless
ACL if they won't work?
On 07.05.2025 13:55, Dumitru Ceara wrote:
> On 4/28/25 8:32 PM, Alexandra Rukomoinikova wrote:
>> [0] Removed support for using load balancers in conjunction with stateless
>> ACL.
>> This commit removes the ability to use load balancers alongside stateless
>> ACL.
>> If a load balancer is created, the datapath is no longer fully stateless.
>> Therefore, to avoid traffic being directed to the contract, it is recommended
>> to refrain from creating a load balancer entirely.
>>
>> Commit [0] ensures the separation of stateful and stateless scenarios
>> in the absence of load balancers, without altering the functionality
>> of load balancers themselves.
>>
>> When a logical switch is configured with stateless ACL and a load balancer,
>> the check for the `REGBIT_CONNTRACK_NAT` flag in the `pre_lb` stage of
>> the ingress pipeline becomes redundant. Traffic directed to the load balancer
>> must be processed through the conntrack.
>>
>> To ensure proper load balancer operation, a rule must be added to match
>> the load balancer's VIP address and its protocol (if applicable). This rule
>> is added to the datapath group and does not negatively impact performance.
>> Packets matching this rule would still be directed to the contract via
>> lower-priority rules in the absence of stateless ACL. However, with
>> stateless ACL,
>> this rule enables load balancing when the client balances traffic to itself.
>>
>> In the egress pipeline, the stateless register should only be set if no
>> load balancers are present on the datapath. This maintains a clear separation
>> between Stateful and Stateless modes when using ACL.
>> If a user creates a load balancer on a logical switch, they should be aware
>> that the traffic will no longer be fully stateless.
>>
>> Also in case of lb configured with stateless ACLs we no longer take into
>> account
>> ct.inv packets in egress. They will be dropped further, at the hypervisor
>> level.
>>
>> [0] - ovn-org@a0f82ef.
>>
>> Signed-off-by: Alexandra Rukomoinikova <arukomoinikova@k2.cloud>
>> ---
>> v3 --> v4: fixed Dumitu's comments.
>>
> Hi Alexandra,
>
> Thanks for the patch and sorry for the slowness in reviews.
>
>> ---
>> lib/lb.c | 1 +
>> lib/lb.h | 2 +
>> northd/en-ls-stateful.c | 4 +
>> northd/en-ls-stateful.h | 1 +
>> northd/lb.c | 17 ++++-
>> northd/northd.c | 71 +++++++++++++++---
>> northd/ovn-northd.8.xml | 11 ++-
>> tests/ovn-northd.at | 143 +++++++++++++++++++++++++++++++++---
>> tests/ovn.at | 8 +-
>> tests/system-ovn.at | 157 ++++++++++++++++++++++++++++++++++++----
>> 10 files changed, 372 insertions(+), 43 deletions(-)
>>
>> diff --git a/lib/lb.c b/lib/lb.c
>> index 6e7a4e296..f12373321 100644
>> --- a/lib/lb.c
>> +++ b/lib/lb.c
>> @@ -304,6 +304,7 @@ ovn_lb_vip_destroy(struct ovn_lb_vip *vip)
>> {
>> free(vip->vip_str);
>> free(vip->port_str);
>> + free(vip->hairpin_snat_ip);
>> ovn_lb_backends_destroy(vip);
>> }
>>
>> diff --git a/lib/lb.h b/lib/lb.h
>> index b1a89d63c..c629e1efd 100644
>> --- a/lib/lb.h
>> +++ b/lib/lb.h
>> @@ -42,6 +42,8 @@ struct ovn_lb_vip {
>>
>> bool empty_backend_rej;
>> int address_family;
>> +
>> + char *hairpin_snat_ip;
>> };
>>
>> struct ovn_lb_backend {
>> diff --git a/northd/en-ls-stateful.c b/northd/en-ls-stateful.c
>> index 69cda5008..6240c1ea8 100644
>> --- a/northd/en-ls-stateful.c
>> +++ b/northd/en-ls-stateful.c
>> @@ -452,6 +452,10 @@ ls_stateful_record_set_acl_flags_(struct
>> ls_stateful_record *ls_stateful_rec,
>> && !strcmp(acl->action, "allow-related")) {
>> ls_stateful_rec->has_stateful_acl = true;
>> }
>> + if (!ls_stateful_rec->has_stateless_acl
>> + && !strcmp(acl->action, "allow-stateless")) {
>> + ls_stateful_rec->has_stateless_acl = true;
>> + }
>> if (ls_stateful_rec->has_stateful_acl &&
>> ls_acl_tiers_are_maxed_out(
>> &ls_stateful_rec->max_acl_tier,
>> diff --git a/northd/en-ls-stateful.h b/northd/en-ls-stateful.h
>> index 18a7398a6..8516996c5 100644
>> --- a/northd/en-ls-stateful.h
>> +++ b/northd/en-ls-stateful.h
>> @@ -50,6 +50,7 @@ struct ls_stateful_record {
>> size_t ls_index;
>>
>> bool has_stateful_acl;
>> + bool has_stateless_acl;
>> bool has_lb_vip;
>> bool has_acls;
>> struct acl_tier max_acl_tier;
>> diff --git a/northd/lb.c b/northd/lb.c
>> index af0c92954..3279a8fcd 100644
>> --- a/northd/lb.c
>> +++ b/northd/lb.c
>> @@ -256,6 +256,14 @@ ovn_lb_get_health_check(const struct
>> nbrec_load_balancer *nbrec_lb,
>> return NULL;
>> }
>>
>> +static bool
>> +validate_snap_ip_address(const char *snat_ip)
>> +{
>> + ovs_be32 ip;
>> +
>> + return ip_parse(snat_ip, &ip);
>> +}
>> +
>> static void
>> ovn_northd_lb_init(struct ovn_northd_lb *lb,
>> const struct nbrec_load_balancer *nbrec_lb)
>> @@ -338,7 +346,14 @@ ovn_northd_lb_init(struct ovn_northd_lb *lb,
>> if (lb_vip_nb->lb_health_check) {
>> ovn_lb_vip_backends_health_check_init(lb, lb_vip, lb_vip_nb);
>> }
>> - }
>> +
>> + const char *snat_ip = smap_get(&lb->nlb->options,
>> + "hairpin_snat_ip");
>> +
>> + if (snat_ip && validate_snap_ip_address(snat_ip)) {
>> + lb_vip->hairpin_snat_ip = xstrdup(snat_ip);
>> + }
>> + }
>>
>> /* It's possible that parsing VIPs fails. Update the lb->n_vips to the
>> * correct value.
>> diff --git a/northd/northd.c b/northd/northd.c
>> index 74792e38b..b9f733bd8 100644
>> --- a/northd/northd.c
>> +++ b/northd/northd.c
>> @@ -5926,7 +5926,8 @@ skip_port_from_conntrack(const struct ovn_datapath
>> *od, struct ovn_port *op,
>> }
>>
>> static void
>> -build_stateless_filter(const struct ovn_datapath *od,
>> +build_stateless_filter(const struct ls_stateful_record *ls_stateful_rec,
>> + const struct ovn_datapath *od,
>> const struct nbrec_acl *acl,
>> struct lflow_table *lflows,
>> struct lflow_ref *lflow_ref)
>> @@ -5939,7 +5940,11 @@ build_stateless_filter(const struct ovn_datapath *od,
>> action,
>> &acl->header_,
>> lflow_ref);
>> - } else {
>> + } else if (!ls_stateful_rec->has_lb_vip) {
>> + /* For cases when we have statefull ACLs but no load
> Uhm, I think you mean "For cases when we have stateless ACLs but no load
> balancer".
>
>> + balancer configured on logical switch - we should
>> + completely bypass conntrack on egress, otherwise
>> + it is necessary to check the balanced traffic. */
>> ovn_lflow_add_with_hint(lflows, od, S_SWITCH_OUT_PRE_ACL,
>> acl->priority + OVN_ACL_PRI_OFFSET,
>> acl->match,
> However, I've been testing this patch some more and, as I was trying to
> say on earlier versions, I don't think we can accept it as is. Let's
> assume we have an user that has the following configuration:
>
> VIF2 (42.42.42.2/24) --- LS --- VIF3 (42.42.42.3/24)
>
> And a to-lport (egress) stateless ACL:
>
> to-lport, prio 1, if "ip4.dst == 42.42.42.0/24", then allow-stateless
>
> When there's no load balancer configured all traffic from VIF3
> (42.42.42.3) to VIF2 (42.42.42.2) is forwarded without ever being sent
> to conntrack, in the datapath ct_state=-trk, which is fine.
>
> Now let's assume we also have VIFs 4 and 5:
>
> VIF2 (42.42.42.2/24) --- LS --- VIF3 (42.42.42.3/24)
> |
> VIF4 (42.42.42.4/24) ----+----- VIF5 (42.42.42.5/24)
>
> And a TCP load balancer:
> - VIP: 66.66.66.66:666
> - backends: 42.42.42.4:4242 (VIF4)
>
> Before your patch:
>
> a. traffic from VIF5 to LB VIP (66.66.66.66:666) is not DNATed, LB
> doesn't work
>
> b. all traffic from VIF3 (42.42.42.3) to VIF2 (42.42.42.2) is forwarded
> without ever being sent to conntrack, in the datapath ct_state=-trk.
>
> According to Han and Venu [0], [1], that's as designed:
> [0]
> https://github.com/ovn-org/ovn/commit/a0f82efdd9dfd3ef2d9606c1890e353df1097a51
> [1] https://mail.openvswitch.org/pipermail/ovs-dev/2022-November/399224.html
>
> Now with your patch:
>
> a. traffic from VIF5 to LB VIP (66.66.66.66:666) works.
>
> BUT
>
> b. all traffic between VIF3 (42.42.42.3) and VIF2 (42.42.42.2) is
> forwarded either on datapath flows that match on:
> ct_state(+new-est-rel-rpl-inv+trk)
>
> OR on flows that match on:
> ct_state(-new-est-rel-rpl+inv+trk)
>
> That means the to-lport allow-stateless ACL has no stateless semantics
> anymore. It also breaks HW offload for some NVIDIA NICs and it also
> means (useless?) recirculations in the datapath.
>
> I understand that for your use case that's acceptable but other use
> cases as above get broken.
>
> I think we have two options:
>
> A. add flows that match on reply traffic that's destined to load
> balancer backends. This comes with a control plane performance cost
> because we need to add a flow per backend. It also means we'd have to
> add the flows from ovn-controller if we want to support template load
> balancers (for which the backend IPs are potentially not known in
> ovn-northd).
>
> B. add a per switch option to enable the load balancer functionality
> when stateless ACLs are configured on the switch. The documentation for
> this option should clearly note that when the option is set
> allow-stateless ACLs in the egress direction are not stateless anymore
> if LBs are present. The option should be false by default so we don't
> break any existing deployments.
>
> Something like NB.Logical_Switch.other_config:enable-stateless-acl-lb.
>
> Then change the code above to bypass the stateless filter in the egress
> pipeline only if the option is set to True for the given switch.
>
> We'd also need to make sure we change the ct.inv/!ct.inv lflow matches
> only if the option is set to true.
>
> This new option would also need a NEWS file entry.
>
> Knobs are not great but in this situation I'm out of ideas so I vote for
> option B.
>
> Please see some more minor comments below.
>
>> @@ -5950,15 +5955,17 @@ build_stateless_filter(const struct ovn_datapath *od,
>> }
>>
>> static void
>> -build_stateless_filters(const struct ovn_datapath *od,
>> +build_stateless_filters(const struct ls_stateful_record *ls_stateful_rec,
>> const struct ls_port_group_table *ls_port_groups,
>> + const struct ovn_datapath *od,
>> struct lflow_table *lflows,
>> struct lflow_ref *lflow_ref)
>> {
>> for (size_t i = 0; i < od->nbs->n_acls; i++) {
>> const struct nbrec_acl *acl = od->nbs->acls[i];
>> if (!strcmp(acl->action, "allow-stateless")) {
>> - build_stateless_filter(od, acl, lflows, lflow_ref);
>> + build_stateless_filter(ls_stateful_rec, od, acl, lflows,
>> + lflow_ref);
>> }
>> }
>>
>> @@ -5974,7 +5981,8 @@ build_stateless_filters(const struct ovn_datapath *od,
>> const struct nbrec_acl *acl = ls_pg_rec->nb_pg->acls[i];
>>
>> if (!strcmp(acl->action, "allow-stateless")) {
>> - build_stateless_filter(od, acl, lflows, lflow_ref);
>> + build_stateless_filter(ls_stateful_rec, od, acl, lflows,
>> + lflow_ref);
>> }
>> }
>> }
>> @@ -6029,7 +6037,8 @@ build_ls_stateful_rec_pre_acls(
>> }
>>
>> /* stateless filters always take precedence over stateful ACLs. */
>> - build_stateless_filters(od, ls_port_groups, lflows, lflow_ref);
>> + build_stateless_filters(ls_stateful_rec, ls_port_groups, od, lflows,
>> + lflow_ref);
>>
>> /* Ingress and Egress Pre-ACL Table (Priority 110).
>> *
>> @@ -6074,7 +6083,8 @@ build_ls_stateful_rec_pre_acls(
>> } else if (ls_stateful_rec->has_lb_vip) {
>> /* We'll build stateless filters if there are LB rules so that
>> * the stateless flows are not tracked in pre-lb. */
>> - build_stateless_filters(od, ls_port_groups, lflows, lflow_ref);
>> + build_stateless_filters(ls_stateful_rec, ls_port_groups, od,
>> lflows,
>> + lflow_ref);
>> }
>> }
>>
>> @@ -7400,6 +7410,23 @@ choose_max_acl_tier(const struct ls_stateful_record
>> *ls_stateful_rec,
>> }
>> }
>>
>> +/* In the case of stateless ACLs and load balancers, all traffic
>> + * is passed to conntrack during egress pipeline. Conntrack will
>> + * mark the packets as 'invalid,' but since stateless systems do
>> + * not rely on conntrack state, these invalid packets will be
>> + * discarded during processing on the hypervisor level.
>> + */
>> +static bool
>> +stateless_inv_match(const struct ls_stateful_record *ls_stateful_rec)
>> +{
>> + if (ls_stateful_rec->has_lb_vip
>> + && ls_stateful_rec->has_stateless_acl) {
> Nit: these fit on the same line.
>
>> + return false;
>> + }
>> +
>> + return true;
>> +}
>> +
>> static void
>> build_acls(const struct ls_stateful_record *ls_stateful_rec,
>> const struct ovn_datapath *od,
>> @@ -7502,8 +7529,14 @@ build_acls(const struct ls_stateful_record
>> *ls_stateful_rec,
>> *
>> * This is enforced at a higher priority than ACLs can be defined.
>> */
>> ds_clear(&match);
>> - ds_put_format(&match, "%s(ct.est && ct.rpl && ct_mark.blocked ==
>> 1)",
>> - use_ct_inv_match ? "ct.inv || " : "");
>> +
>> + if (use_ct_inv_match && stateless_inv_match(ls_stateful_rec)) {
>> + ds_put_cstr(&match, "ct.inv || (ct.est && ct.rpl && "
>> + "ct_mark.blocked == 1)");
>> + } else {
>> + ds_put_cstr(&match, "ct.est && ct.rpl && ct_mark.blocked == 1");
>> + }
>> +
>> ovn_lflow_add(lflows, od, S_SWITCH_IN_ACL_EVAL, UINT16_MAX - 3,
>> ds_cstr(&match), REGBIT_ACL_VERDICT_DROP " = 1;
>> next;",
>> lflow_ref);
>> @@ -7797,8 +7830,7 @@ build_lb_rules_pre_stateful(struct lflow_table *lflows,
>> }
>> ds_put_cstr(action, "ct_lb_mark;");
>>
>> - ds_put_format(match, REGBIT_CONNTRACK_NAT" == 1 && %s.dst == %s",
>> - ip_match, lb_vip->vip_str);
>> + ds_put_format(match, "%s.dst == %s", ip_match, lb_vip->vip_str);
>> if (lb_vip->port_str) {
>> ds_put_format(match, " && %s.dst == %s", lb->proto,
>> lb_vip->port_str);
>> @@ -7808,6 +7840,23 @@ build_lb_rules_pre_stateful(struct lflow_table
>> *lflows,
>> lflows, lb_dps->nb_ls_map, ods_size(ls_datapaths),
>> S_SWITCH_IN_PRE_STATEFUL, 120, ds_cstr(match), ds_cstr(action),
>> &lb->nlb->header_, lb_dps->lflow_ref);
>> +
>> + /* Pass all VIP traffic to the conntrack to support load balancers
>> + in the case of stateless acl. */
>> + if (lb_vip->hairpin_snat_ip || lb_vip->port_str) {
>> + ds_clear(action);
>> + ds_clear(match);
>> +
>> + ds_put_format(match, "%s && %s.dst == %s", lb->proto, ip_match,
>> + lb_vip->hairpin_snat_ip ? lb_vip->hairpin_snat_ip
>> + : lb_vip->vip_str);
>> + ds_put_cstr(action, "ct_lb_mark;");
>> +
>> + ovn_lflow_add_with_dp_group(
>> + lflows, lb_dps->nb_ls_map, ods_size(ls_datapaths),
>> + S_SWITCH_IN_PRE_STATEFUL, 105, ds_cstr(match),
>> ds_cstr(action),
>> + &lb->nlb->header_, lb_dps->lflow_ref);
>> + }
>> }
>> }
>>
>> diff --git a/northd/ovn-northd.8.xml b/northd/ovn-northd.8.xml
>> index e087b6f59..08803b4c7 100644
>> --- a/northd/ovn-northd.8.xml
>> +++ b/northd/ovn-northd.8.xml
>> @@ -507,7 +507,7 @@
>> <ref table="Logical_Switch_Port" db="OVN_Northbound"/>. Multicast,
>> IPv6
>> Neighbor Discovery and MLD traffic also skips stateful ACLs. For
>> "allow-stateless" ACLs, a flow is added to bypass setting the hint
>> for
>> - connection tracker processing when there are stateful ACLs or LB
>> rules;
>> + connection tracker processing when there are stateful ACLs without LB;
>> <code>REGBIT_ACL_STATELESS</code> is set for traffic matching
>> stateless
>> ACL flows.
>> </p>
>> @@ -624,6 +624,12 @@
>> <code>ct_lb_mark;</code> action.
>> </li>
>>
>> + <li>
>> + A priority-105 flow sends all packet directed to VIP that don't
>> + match the above flows to connection tracker. This allows load
>> + balancers to work in case of stateless ACLs.
>> + </li>
>> +
>> <li>
>> A priority-100 flow sends the packets to connection tracker based
>> on a hint provided by the previous tables
>> @@ -770,7 +776,8 @@
>> </li>
>> <li>
>> <code>allow-stateless</code> ACLs translate into logical flows
>> that set
>> - the allow bit and advance to the next table.
>> + the allow bit and advance to the next table. In case of load
>> balancers
>> + with stateless ACLs in this table we allow ct.inv packets go
>> further.
>> </li>
>> <li>
>> <code>reject</code> ACLs translate into logical flows with that
>> set the
>> diff --git a/tests/ovn-northd.at b/tests/ovn-northd.at
>> index 82dfe92fd..63e1fe330 100644
>> --- a/tests/ovn-northd.at
>> +++ b/tests/ovn-northd.at
>> @@ -3747,10 +3747,18 @@ for direction in from to; do
>> done
>> check ovn-nbctl --wait=sb sync
>>
>> -# TCP packets should not go to conntrack for load balancing.
>> +# TCP packets should go to conntrack for load balancing.
>> flow="inport == \"lsp1\" && ${flow_eth} && ${flow_ip} && ${flow_tcp}"
>> AT_CHECK_UNQUOTED([ovn_trace --ct new --ct new --minimal ls "${flow}"],
>> [0], [dnl
>> -output("lsp2");
>> +ct_lb_mark {
>> + ct_lb_mark {
>> + reg0[[6]] = 0;
>> + reg0[[12]] = 0;
>> + ct_lb_mark /* default (use --ct to customize) */ {
>> + output("lsp2");
>> + };
>> + };
>> +};
>> ])
>>
>> # UDP packets still go to conntrack.
>> @@ -3883,10 +3891,18 @@ for direction in from to; do
>> done
>> check ovn-nbctl --wait=sb sync
>>
>> -# TCP packets should not go to conntrack for load balancing.
>> +# TCP packets should go to conntrack for load balancing.
>> flow="inport == \"lsp1\" && ${flow_eth} && ${flow_ip} && ${flow_tcp}"
>> AT_CHECK_UNQUOTED([ovn_trace --ct new --ct new --minimal ls "${flow}"],
>> [0], [dnl
>> -output("lsp2");
>> +ct_lb_mark {
>> + ct_lb_mark {
>> + reg0[[6]] = 0;
>> + reg0[[12]] = 0;
>> + ct_lb_mark /* default (use --ct to customize) */ {
>> + output("lsp2");
>> + };
>> + };
>> +};
>> ])
>>
>> # UDP packets still go to conntrack.
>> @@ -4775,10 +4791,12 @@ check_stateful_flows() {
>> AT_CHECK([grep "ls_in_pre_stateful" sw0flows | ovn_strip_lflows], [0],
>> [dnl
>> table=??(ls_in_pre_stateful ), priority=0 , match=(1), action=(next;)
>> table=??(ls_in_pre_stateful ), priority=100 , match=(reg0[[0]] == 1),
>> action=(ct_next;)
>> + table=??(ls_in_pre_stateful ), priority=105 , match=(tcp && ip4.dst ==
>> 10.0.0.10), action=(ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=105 , match=(tcp && ip4.dst ==
>> 10.0.0.20), action=(ct_lb_mark;)
>> table=??(ls_in_pre_stateful ), priority=110 , match=(reg0[[2]] == 1),
>> action=(ct_lb_mark;)
>> table=??(ls_in_pre_stateful ), priority=115 , match=(reg0[[2]] == 1 &&
>> ip.is_frag), action=(reg0[[19]] = 1; ct_lb_mark;)
>> - table=??(ls_in_pre_stateful ), priority=120 , match=(reg0[[2]] == 1 &&
>> ip4.dst == 10.0.0.10 && tcp.dst == 80), action=(reg4 = 10.0.0.10;
>> reg2[[0..15]] = 80; ct_lb_mark;)
>> - table=??(ls_in_pre_stateful ), priority=120 , match=(reg0[[2]] == 1 &&
>> ip4.dst == 10.0.0.20 && tcp.dst == 80), action=(reg4 = 10.0.0.20;
>> reg2[[0..15]] = 80; ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=120 , match=(ip4.dst ==
>> 10.0.0.10 && tcp.dst == 80), action=(reg4 = 10.0.0.10; reg2[[0..15]] = 80;
>> ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=120 , match=(ip4.dst ==
>> 10.0.0.20 && tcp.dst == 80), action=(reg4 = 10.0.0.20; reg2[[0..15]] = 80;
>> ct_lb_mark;)
>> ])
>>
>> AT_CHECK([grep "ls_in_lb " sw0flows | ovn_strip_lflows], [0], [dnl
>> @@ -5072,16 +5090,16 @@ AT_CAPTURE_FILE([sw0flows])
>>
>> AT_CHECK([grep -w "ls_in_acl_eval" sw0flows | grep 6553 |
>> ovn_strip_lflows], [0], [dnl
>> table=??(ls_in_acl_eval ), priority=65532, match=(!ct.est && ct.rel
>> && !ct.new && ct_mark.blocked == 0), action=(reg0[[17]] = 1; reg8[[16]] = 1;
>> ct_commit_nat;)
>> - table=??(ls_in_acl_eval ), priority=65532, match=((ct.est && ct.rpl
>> && ct_mark.blocked == 1)), action=(reg8[[17]] = 1; next;)
>> table=??(ls_in_acl_eval ), priority=65532, match=(ct.est && !ct.rel
>> && !ct.new && ct.rpl && ct_mark.blocked == 0), action=(reg0[[9]] = 0;
>> reg0[[10]] = 0; reg0[[17]] = 1; reg8[[16]] = 1; next;)
>> + table=??(ls_in_acl_eval ), priority=65532, match=(ct.est && ct.rpl &&
>> ct_mark.blocked == 1), action=(reg8[[17]] = 1; next;)
>> table=??(ls_in_acl_eval ), priority=65532, match=(ct.est &&
>> ct_mark.allow_established == 1), action=(reg0[[21]] = 1; reg8[[16]] = 1;
>> next;)
>> table=??(ls_in_acl_eval ), priority=65532, match=(nd || nd_ra ||
>> nd_rs || mldv1 || mldv2), action=(reg8[[16]] = 1; next;)
>> ])
>>
>> AT_CHECK([grep -w "ls_out_acl_eval" sw0flows | grep 6553 |
>> ovn_strip_lflows], [0], [dnl
>> table=??(ls_out_acl_eval ), priority=65532, match=(!ct.est && ct.rel
>> && !ct.new && ct_mark.blocked == 0), action=(reg8[[16]] = 1; ct_commit_nat;)
>> - table=??(ls_out_acl_eval ), priority=65532, match=((ct.est && ct.rpl
>> && ct_mark.blocked == 1)), action=(reg8[[17]] = 1; next;)
>> table=??(ls_out_acl_eval ), priority=65532, match=(ct.est && !ct.rel
>> && !ct.new && ct.rpl && ct_mark.blocked == 0), action=(reg8[[16]] = 1; next;)
>> + table=??(ls_out_acl_eval ), priority=65532, match=(ct.est && ct.rpl &&
>> ct_mark.blocked == 1), action=(reg8[[17]] = 1; next;)
>> table=??(ls_out_acl_eval ), priority=65532, match=(ct.est &&
>> ct_mark.allow_established == 1), action=(reg8[[16]] = 1; next;)
>> table=??(ls_out_acl_eval ), priority=65532, match=(nd || nd_ra ||
>> nd_rs || mldv1 || mldv2), action=(reg8[[16]] = 1; next;)
>> ])
>> @@ -14398,7 +14416,7 @@ ovn-sbctl dump-flows s1 > s1flows
>> AT_CAPTURE_FILE([s1flows])
>>
>> AT_CHECK([grep "ls_in_pre_stateful" s1flows | ovn_strip_lflows | grep
>> "30.0.0.1"], [0], [dnl
>> - table=??(ls_in_pre_stateful ), priority=120 , match=(reg0[[2]] == 1 &&
>> ip4.dst == 30.0.0.1), action=(reg4 = 30.0.0.1; ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=120 , match=(ip4.dst ==
>> 30.0.0.1), action=(reg4 = 30.0.0.1; ct_lb_mark;)
>> ])
>> AT_CHECK([grep "ls_in_lb" s1flows | ovn_strip_lflows | grep "30.0.0.1"],
>> [0], [dnl
>> table=??(ls_in_lb ), priority=110 , match=(ct.new && ip4.dst
>> == 30.0.0.1), action=(reg4 = 30.0.0.1;
>> ct_lb_mark(backends=172.16.0.103,172.16.0.102,172.16.0.101);)
>> @@ -14512,7 +14530,7 @@ ovn-sbctl dump-flows s1 > s1flows
>> AT_CAPTURE_FILE([s1flows])
>>
>> AT_CHECK([grep "ls_in_pre_stateful" s1flows | ovn_strip_lflows | grep
>> "2001:db8:cccc::1"], [0], [dnl
>> - table=??(ls_in_pre_stateful ), priority=120 , match=(reg0[[2]] == 1 &&
>> ip6.dst == 2001:db8:cccc::1), action=(xxreg1 = 2001:db8:cccc::1; ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=120 , match=(ip6.dst ==
>> 2001:db8:cccc::1), action=(xxreg1 = 2001:db8:cccc::1; ct_lb_mark;)
>> ])
>> AT_CHECK([grep "ls_in_lb" s1flows | ovn_strip_lflows | grep
>> "2001:db8:cccc::1"], [0], [dnl
>> table=??(ls_in_lb ), priority=110 , match=(ct.new && ip6.dst
>> == 2001:db8:cccc::1), action=(xxreg1 = 2001:db8:cccc::1;
>> ct_lb_mark(backends=2001:db8:aaaa:3::103,2001:db8:aaaa:3::102,2001:db8:aaaa:3::101);)
>> @@ -14623,7 +14641,7 @@ ovn-sbctl dump-flows s1 > s1flows
>> AT_CAPTURE_FILE([s1flows])
>>
>> AT_CHECK([grep "ls_in_pre_stateful" s1flows | ovn_strip_lflows | grep
>> "30.0.0.1"], [0], [dnl
>> - table=??(ls_in_pre_stateful ), priority=120 , match=(reg0[[2]] == 1 &&
>> ip4.dst == 30.0.0.1), action=(reg4 = 30.0.0.1; ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=120 , match=(ip4.dst ==
>> 30.0.0.1), action=(reg4 = 30.0.0.1; ct_lb_mark;)
>> ])
>> AT_CHECK([grep "ls_in_lb" s1flows | ovn_strip_lflows | grep "30.0.0.1"],
>> [0], [dnl
>> table=??(ls_in_lb ), priority=110 , match=(ct.new && ip4.dst
>> == 30.0.0.1), action=(reg4 = 30.0.0.1;
>> ct_lb_mark(backends=172.16.0.103,172.16.0.102,172.16.0.101);)
>> @@ -16960,5 +16978,108 @@ AT_CHECK([ovn_strip_lflows < lrflows | grep
>> priority=105 | grep -c "flags.force_
>> 1
>> ])
>>
>> +AT_CLEANUP
>> +])
>> +
>> +OVN_FOR_EACH_NORTHD_NO_HV([
>> +AT_SETUP([Load Balancers with stateless ACLs])
>> +ovn_start ovn-northd
>> +
>> +AS_BOX([create logical switches and ports])
>> +check ovn-nbctl ls-add sw0
>> +check ovn-nbctl --wait=sb lsp-add sw0 sw0-p1 -- lsp-set-addresses sw0-p1 \
>> +"00:00:00:00:00:02 10.0.0.2"
>> +
>> +check ovn-nbctl --wait=sb lsp-add sw0 sw0-p2 -- lsp-set-addresses sw0-p2 \
>> +"00:00:00:00:00:03 10.0.0.3"
>> +
>> +AS_BOX([create stateless ACLs])
>> +check ovn-nbctl acl-add sw0 from-lport 1001 "ip" allow-stateless
>> +check ovn-nbctl acl-add sw0 to-lport 1001 "ip" allow-stateless
>> +
>> +AS_BOX([create stateful ACLs])
>> +# check if allow-stateless acls have higher priority we skip conntrack.
>> +check ovn-nbctl acl-add sw0 from-lport 1000 "ip" allow-related
>> +check ovn-nbctl acl-add sw0 to-lport 1000 "ip" allow-related
>> +
>> +ovn-sbctl dump-flows sw0 > sw0flows
>> +
>> +AT_CHECK(
>> + [grep -E 'ls_(in|out)_pre_acl' sw0flows | grep reg0 | ovn_strip_lflows],
>> [0], [dnl
>> + table=??(ls_in_pre_acl ), priority=100 , match=(ip),
>> action=(reg0[[0]] = 1; next;)
>> + table=??(ls_in_pre_acl ), priority=2001 , match=(ip),
>> action=(reg0[[16]] = 1; next;)
>> + table=??(ls_out_pre_acl ), priority=100 , match=(ip),
>> action=(reg0[[0]] = 1; next;)
>> + table=??(ls_out_pre_acl ), priority=2001 , match=(ip),
>> action=(reg0[[16]] = 1; next;)
>> +])
>> +
>> +AT_CHECK(
>> + [grep -E 'ls_out_acl_eval' sw0flows | grep 65532 | ovn_strip_lflows],
>> [0], [dnl
>> + table=??(ls_out_acl_eval ), priority=65532, match=(!ct.est && ct.rel
>> && !ct.new && !ct.inv && ct_mark.blocked == 0), action=(reg8[[16]] = 1;
>> ct_commit_nat;)
>> + table=??(ls_out_acl_eval ), priority=65532, match=(ct.est && !ct.rel
>> && !ct.new && !ct.inv && ct.rpl && ct_mark.blocked == 0), action=(reg8[[16]]
>> = 1; next;)
>> + table=??(ls_out_acl_eval ), priority=65532, match=(ct.est &&
>> ct_mark.allow_established == 1), action=(reg8[[16]] = 1; next;)
>> + table=??(ls_out_acl_eval ), priority=65532, match=(ct.inv || (ct.est
>> && ct.rpl && ct_mark.blocked == 1)), action=(reg8[[17]] = 1; next;)
>> + table=??(ls_out_acl_eval ), priority=65532, match=(nd || nd_ra ||
>> nd_rs || mldv1 || mldv2), action=(reg8[[16]] = 1; next;)
>> +])
>> +
>> +AS_BOX([create Load Balancer])
>> +check ovn-nbctl lb-add lb1 10.0.0.4:80 10.0.0.2:80,10.0.0.3:80
>> +check ovn-nbctl --wait=sb ls-lb-add sw0 lb1
>> +
>> +ovn-sbctl dump-flows sw0 > sw0flows
>> +
>> +AT_CHECK([grep -E 'ls_(in|out)_pre_acl' sw0flows | grep reg0 |
>> ovn_strip_lflows], [0], [dnl
>> + table=??(ls_in_pre_acl ), priority=100 , match=(ip),
>> action=(reg0[[0]] = 1; next;)
>> + table=??(ls_in_pre_acl ), priority=2001 , match=(ip),
>> action=(reg0[[16]] = 1; next;)
>> + table=??(ls_out_pre_acl ), priority=100 , match=(ip),
>> action=(reg0[[0]] = 1; next;)
>> +])
>> +
>> +# We do not match conntrack invalide packets in case of load balancers with
>> stateless ACLs.
>> +AT_CHECK(
>> + [grep -E 'ls_out_acl_eval' sw0flows | grep 65532 | ovn_strip_lflows],
>> [0], [dnl
>> + table=??(ls_out_acl_eval ), priority=65532, match=(!ct.est && ct.rel
>> && !ct.new && !ct.inv && ct_mark.blocked == 0), action=(reg8[[16]] = 1;
>> ct_commit_nat;)
>> + table=??(ls_out_acl_eval ), priority=65532, match=(ct.est && !ct.rel
>> && !ct.new && !ct.inv && ct.rpl && ct_mark.blocked == 0), action=(reg8[[16]]
>> = 1; next;)
>> + table=??(ls_out_acl_eval ), priority=65532, match=(ct.est && ct.rpl &&
>> ct_mark.blocked == 1), action=(reg8[[17]] = 1; next;)
>> + table=??(ls_out_acl_eval ), priority=65532, match=(ct.est &&
>> ct_mark.allow_established == 1), action=(reg8[[16]] = 1; next;)
>> + table=??(ls_out_acl_eval ), priority=65532, match=(nd || nd_ra ||
>> nd_rs || mldv1 || mldv2), action=(reg8[[16]] = 1; next;)
>> +])
>> +
>> +AT_CHECK([grep -E 'ls_in_pre_stateful' sw0flows | ovn_strip_lflows], [0],
>> [dnl
>> + table=??(ls_in_pre_stateful ), priority=0 , match=(1), action=(next;)
>> + table=??(ls_in_pre_stateful ), priority=100 , match=(reg0[[0]] == 1),
>> action=(ct_next;)
>> + table=??(ls_in_pre_stateful ), priority=105 , match=(tcp && ip4.dst ==
>> 10.0.0.4), action=(ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=110 , match=(reg0[[2]] == 1),
>> action=(ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=115 , match=(reg0[[2]] == 1 &&
>> ip.is_frag), action=(reg0[[19]] = 1; ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=120 , match=(ip4.dst == 10.0.0.4
>> && tcp.dst == 80), action=(reg4 = 10.0.0.4; reg2[[0..15]] = 80; ct_lb_mark;)
>> +])
>> +
>> +AS_BOX([create Load Balancer without port])
>> +check ovn-nbctl --wait=sb ls-lb-del sw0 lb1
>> +check ovn-nbctl lb-add lb2 10.0.0.5 10.0.0.2,10.0.0.3
>> +check ovn-nbctl --wait=sb ls-lb-add sw0 lb2
>> +
>> +ovn-sbctl dump-flows sw0 > sw0flows
>> +
>> +AT_CHECK([grep -E 'ls_in_pre_stateful' sw0flows | ovn_strip_lflows], [0],
>> [dnl
>> + table=??(ls_in_pre_stateful ), priority=0 , match=(1), action=(next;)
>> + table=??(ls_in_pre_stateful ), priority=100 , match=(reg0[[0]] == 1),
>> action=(ct_next;)
>> + table=??(ls_in_pre_stateful ), priority=110 , match=(reg0[[2]] == 1),
>> action=(ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=115 , match=(reg0[[2]] == 1 &&
>> ip.is_frag), action=(reg0[[19]] = 1; ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=120 , match=(ip4.dst ==
>> 10.0.0.5), action=(reg4 = 10.0.0.5; ct_lb_mark;)
>> +])
>> +
>> +AS_BOX([set hairpin_snat_ip to Load Balancer without port])
>> +check ovn-nbctl --wait=sb set load_balancer lb2
>> options:hairpin_snat_ip="10.0.0.6"
>> +
>> +ovn-sbctl dump-flows sw0 > sw0flows
>> +AT_CHECK([grep -E 'ls_in_pre_stateful' sw0flows | ovn_strip_lflows], [0],
>> [dnl
>> + table=??(ls_in_pre_stateful ), priority=0 , match=(1), action=(next;)
>> + table=??(ls_in_pre_stateful ), priority=100 , match=(reg0[[0]] == 1),
>> action=(ct_next;)
>> + table=??(ls_in_pre_stateful ), priority=105 , match=(tcp && ip4.dst ==
>> 10.0.0.6), action=(ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=110 , match=(reg0[[2]] == 1),
>> action=(ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=115 , match=(reg0[[2]] == 1 &&
>> ip.is_frag), action=(reg0[[19]] = 1; ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=120 , match=(ip4.dst ==
>> 10.0.0.5), action=(reg4 = 10.0.0.5; ct_lb_mark;)
>> +])
>> +
>> +
>> AT_CLEANUP
>> ])
>> diff --git a/tests/ovn.at b/tests/ovn.at
>> index 88c9cabfe..ea5682e00 100644
>> --- a/tests/ovn.at
>> +++ b/tests/ovn.at
>> @@ -26388,7 +26388,7 @@ OVS_WAIT_FOR_OUTPUT(
>> [ovn-sbctl dump-flows > sbflows
>> ovn-sbctl dump-flows sw0 | grep ct_lb_mark | grep priority=120 | sed
>> 's/table=..//'], 0,
>> [dnl
>> - (ls_in_pre_stateful ), priority=120 , match=(reg0[[2]] == 1 && ip4.dst
>> == 10.0.0.10 && tcp.dst == 80), action=(reg4 = 10.0.0.10; reg2[[0..15]] =
>> 80; ct_lb_mark;)
>> + (ls_in_pre_stateful ), priority=120 , match=(ip4.dst == 10.0.0.10 &&
>> tcp.dst == 80), action=(reg4 = 10.0.0.10; reg2[[0..15]] = 80; ct_lb_mark;)
>> (ls_in_lb ), priority=120 , match=(ct.new && ip4.dst ==
>> 10.0.0.10 && tcp.dst == 80), action=(reg4 = 10.0.0.10; reg2[[0..15]] = 80;
>> ct_lb_mark(backends=10.0.0.3:80,20.0.0.3:80;
>> hash_fields="ip_dst,ip_src,tcp_dst,tcp_src");)
>> ])
>>
>> @@ -26433,7 +26433,7 @@ AT_CHECK(
>> [grep "ip4.dst == 10.0.0.10 && tcp.dst == 80" sbflows3 | grep
>> priority=120 |\
>> ovn_strip_lflows], [0], [dnl
>> table=??(ls_in_lb ), priority=120 , match=(ct.new && ip4.dst
>> == 10.0.0.10 && tcp.dst == 80), action=(drop;)
>> - table=??(ls_in_pre_stateful ), priority=120 , match=(reg0[[2]] == 1 &&
>> ip4.dst == 10.0.0.10 && tcp.dst == 80), action=(reg4 = 10.0.0.10;
>> reg2[[0..15]] = 80; ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=120 , match=(ip4.dst ==
>> 10.0.0.10 && tcp.dst == 80), action=(reg4 = 10.0.0.10; reg2[[0..15]] = 80;
>> ct_lb_mark;)
>> ])
>>
>> AT_CAPTURE_FILE([sbflows4])
>> @@ -26594,7 +26594,7 @@ OVS_WAIT_FOR_OUTPUT(
>> [ovn-sbctl dump-flows > sbflows
>> ovn-sbctl dump-flows sw0 | grep ct_lb_mark | grep priority=120 | sed
>> 's/table=..//'], 0,
>> [dnl
>> - (ls_in_pre_stateful ), priority=120 , match=(reg0[[2]] == 1 && ip6.dst
>> == 2002::a && tcp.dst == 80), action=(xxreg1 = 2002::a; reg2[[0..15]] = 80;
>> ct_lb_mark;)
>> + (ls_in_pre_stateful ), priority=120 , match=(ip6.dst == 2002::a &&
>> tcp.dst == 80), action=(xxreg1 = 2002::a; reg2[[0..15]] = 80; ct_lb_mark;)
>> (ls_in_lb ), priority=120 , match=(ct.new && ip6.dst ==
>> 2002::a && tcp.dst == 80), action=(xxreg1 = 2002::a; reg2[[0..15]] = 80;
>> ct_lb_mark(backends=[[2001::3]]:80,[[2002::3]]:80;
>> hash_fields="ipv6_dst,ipv6_src,tcp_dst,tcp_src");)
>> ])
>>
>> @@ -26638,7 +26638,7 @@ AT_CHECK(
>> [grep "ip6.dst == 2002::a && tcp.dst == 80" sbflows3 | grep priority=120
>> |\
>> ovn_strip_lflows], [0], [dnl
>> table=??(ls_in_lb ), priority=120 , match=(ct.new && ip6.dst
>> == 2002::a && tcp.dst == 80), action=(drop;)
>> - table=??(ls_in_pre_stateful ), priority=120 , match=(reg0[[2]] == 1 &&
>> ip6.dst == 2002::a && tcp.dst == 80), action=(xxreg1 = 2002::a;
>> reg2[[0..15]] = 80; ct_lb_mark;)
>> + table=??(ls_in_pre_stateful ), priority=120 , match=(ip6.dst == 2002::a
>> && tcp.dst == 80), action=(xxreg1 = 2002::a; reg2[[0..15]] = 80; ct_lb_mark;)
>> ])
>>
>> AT_CAPTURE_FILE([sbflows4])
>> diff --git a/tests/system-ovn.at b/tests/system-ovn.at
>> index 5fa740cfb..59f6fdefa 100644
>> --- a/tests/system-ovn.at
>> +++ b/tests/system-ovn.at
>> @@ -5184,6 +5184,88 @@ OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port
>> patch-.*/d
>> AT_CLEANUP
>> ])
>>
>> +OVN_FOR_EACH_NORTHD([
>> +AT_SETUP([Load Balancer LS hairpin IPv4 with stateless ACLs])
>> +
>> +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
>> +
>> +# Start ovn-controller
>> +start_daemon ovn-controller
>> +
>> +# Logical network:
>> +# One logical switch with IPv4 load balancers that hairpin the traffic.
>> +check ovn-nbctl ls-add sw
>> +check ovn-nbctl lsp-add sw lsp1 -- lsp-set-addresses lsp1 00:00:00:00:00:01
>> +check ovn-nbctl lsp-add sw lsp2 -- lsp-set-addresses lsp2 00:00:00:00:00:02
>> +check ovn-nbctl lb-add lb-ipv4-tcp 88.88.88.88:8080 42.42.42.1:4041 tcp
>> +check ovn-nbctl ls-lb-add sw lb-ipv4-tcp
>> +
>> +check ovn-nbctl lr-add rtr
>> +check ovn-nbctl lrp-add rtr rtr-sw 00:00:00:00:01:00 42.42.42.254/24
>> +check ovn-nbctl lsp-add sw sw-rtr \
>> + -- lsp-set-type sw-rtr router \
>> + -- lsp-set-addresses sw-rtr 00:00:00:00:01:00 \
>> + -- lsp-set-options sw-rtr router-port=rtr-sw
>> +
>> +ADD_NAMESPACES(lsp1)
>> +ADD_VETH(lsp1, lsp1, br-int, "42.42.42.1/24", "00:00:00:00:00:01", \
>> + "42.42.42.254")
>> +
>> +ADD_NAMESPACES(lsp2)
>> +ADD_VETH(lsp2, lsp2, br-int, "42.42.42.2/24", "00:00:00:00:00:02", \
>> + "42.42.42.254")
>> +
>> +check ovn-nbctl --wait=hv -t 3 sync
>> +
>
> We shouldn't reduce the default timeout (-t 3), a plain "check ovn-nbctl
> --wait=hv sync" is enough.
>
> We probably want a "wait_for_ports_up" as well here.
>
>> +# Start IPv4 TCP server on lsp1.
>> +NETNS_DAEMONIZE([lsp1], [nc -l -k 42.42.42.1 4041], [lsp1.pid])
>> +
>> +# Send the packet to VIP.
>> +NS_CHECK_EXEC([lsp1], [nc -z 88.88.88.88 8080], [0], [ignore], [ignore])
>> +NS_CHECK_EXEC([lsp2], [nc -z 88.88.88.88 8080], [0], [ignore], [ignore])
>> +
>> +check ovn-nbctl acl-add sw to-lport 2000 'ip' allow-stateless
>> +check ovn-nbctl acl-add sw from-lport 2000 'ip' allow-stateless
>> +
> This is racy, we need a "--wait=hv sync" here.
>
>> +# Send the packet to VIP after add stateless acl.
>> +NS_CHECK_EXEC([lsp1], [nc -z 88.88.88.88 8080], [0], [ignore], [ignore])
>> +NS_CHECK_EXEC([lsp2], [nc -z 88.88.88.88 8080], [0], [ignore], [ignore])
>> +
>> +check ovn-nbctl acl-add sw to-lport 2001 'ip' allow-related
>> +check ovn-nbctl acl-add sw from-lport 2001 'ip' allow-related
>> +
> Here too.
>
>> +# Send the packet to VIP after add related acls.
>> +NS_CHECK_EXEC([lsp1], [nc -z 88.88.88.88 8080], [0], [ignore], [ignore])
>> +NS_CHECK_EXEC([lsp2], [nc -z 88.88.88.88 8080], [0], [ignore], [ignore])
>> +
>> +OVN_CLEANUP_CONTROLLER([hv1])
>> +
>> +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([ovn-northd])
>> +
>> +as
>> +OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
>> +/connection dropped.*/d"])
>> +AT_CLEANUP
>> +])
>> +
>> OVN_FOR_EACH_NORTHD([
>> AT_SETUP([Load Balancer LS hairpin IPv6])
>> AT_SKIP_IF([test $HAVE_NC = no])
>> @@ -10071,7 +10153,7 @@
>> tcp,orig=(src=192.168.1.2,dst=30.30.30.30,sport=<cleared>,dport=<cleared>),reply
>>
>> AT_CHECK([ovs-appctl dpctl/flush-conntrack])
>>
>> -# remove lb
>> +# Remove Load Balancer.
>> check ovn-nbctl ls-lb-del foo lb1
>>
>> # add stateless acl
>> @@ -10088,7 +10170,29 @@ sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
>>
>> AT_CHECK([ovs-appctl dpctl/flush-conntrack])
>>
>> -# add lb back
>> +# Delete ACLs.
>> +check ovn-nbctl acl-del foo
>> +
>> +# Add stateful ACLs.
>> +check ovn-nbctl acl-add foo from-lport 1 1 allow-related
>> +check ovn-nbctl --wait=hv acl-add foo to-lport 1 1 allow-related
>> +
>> +# Add stateless ACLs.
>> +check ovn-nbctl acl-add foo from-lport 2 1 allow-stateless
>> +check ovn-nbctl --wait=hv acl-add foo to-lport 2 1 allow-stateless
>> +
>> +AT_CHECK([ip netns exec foo1 wget 192.168.2.2 -t 1 -T 1], [0], [ignore],
>> [ignore])
>> +
>> +# Check conntrack zone has no entry.
>> +AT_CHECK([ovs-appctl dpctl/dump-conntrack zone=$zone_id | \
>> +FORMAT_CT(192.168.2.2) | \
>> +sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
>> +])
>> +
>> +AT_CHECK([ovs-appctl dpctl/flush-conntrack])
>> +
>> +# When lb configured: pass conntrack for vip traffic.
>> +# Add Load Balancer back.
>> check ovn-nbctl ls-lb-add foo lb1
>>
>> # Wait for ovn-controller to catch up.
>> @@ -10097,13 +10201,14 @@ check ovn-nbctl --wait=hv sync
>> OVS_WAIT_UNTIL([ovs-ofctl -O OpenFlow13 dump-groups br-int | \
>> grep 'nat(dst=192.168.2.2:80)'])
>>
>> -# should not dnat so will not be able to connect
>> -AT_CHECK([ip netns exec foo1 curl 30.30.30.30 --retry 3 --max-time 1],
>> [28], [ignore], [ignore])
>> +# Now check with VIP.
>> +AT_CHECK([ip netns exec foo1 wget 30.30.30.30 -t 3 -T 1], [0], [ignore],
>> [ignore])
>>
>> -# check conntrack zone has no tcp entry
>> +# Check conntrack zone has tcp entry.
>> AT_CHECK([ovs-appctl dpctl/dump-conntrack zone=$zone_id | \
>> FORMAT_CT(30.30.30.30) | \
>> sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
>> +tcp,orig=(src=192.168.1.2,dst=30.30.30.30,sport=<cleared>,dport=<cleared>),reply=(src=192.168.2.2,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
>> ])
>>
>> AT_CHECK([ovs-appctl dpctl/flush-conntrack])
>> @@ -10203,7 +10308,7 @@
>> tcp,orig=(src=fd11::2,dst=fd12::2,sport=<cleared>,dport=<cleared>),reply=(src=fd
>>
>> AT_CHECK([ovs-appctl dpctl/flush-conntrack])
>>
>> -# now check with VIP
>> +# Now check with VIP.
>> AT_CHECK([ip netns exec foo1 wget http://[[fd30::2]] -t 3 -T 1], [0],
>> [ignore], [ignore])
>>
>> # check conntrack zone has tcp entry
>> @@ -10215,16 +10320,39 @@
>> tcp,orig=(src=fd11::2,dst=fd30::2,sport=<cleared>,dport=<cleared>),reply=(src=fd
>>
>> AT_CHECK([ovs-appctl dpctl/flush-conntrack])
>>
>> -# remove lb
>> +# Remove Load_Balancer.
>> check ovn-nbctl ls-lb-del foo lb1
>>
>> -# add stateless acl
>> +# Delete ACLs.
>> +check ovn-nbctl acl-del foo
>> +
>> +# Add stateful ACLs.
>> +check ovn-nbctl acl-add foo from-lport 1 1 allow-related
>> +check ovn-nbctl --wait=hv acl-add foo to-lport 1 1 allow-related
>> +
>> +# Add stateless ACLs.
>> +check ovn-nbctl acl-add foo from-lport 2 1 allow-stateless
>> +check ovn-nbctl --wait=hv acl-add foo to-lport 2 1 allow-stateless
>> +
>> +AT_CHECK([ip netns exec foo1 wget http://[[fd12::2]] -t 1 -T 1], [0],
>> [ignore], [ignore])
>> +
>> +# Check conntrack zone has no tcp entry.
>> +AT_CHECK([ovs-appctl dpctl/dump-conntrack zone=$zone_id | \
>> +FORMAT_CT(fd12::2) | grep -v fe80 | \
>> +sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
>> +])
>> +
>> +AT_CHECK([ovs-appctl dpctl/flush-conntrack])
>> +
>> +check ovn-nbctl acl-del foo
>> +
>> +# Add stateless ACLs.
>> check ovn-nbctl acl-add foo from-lport 1 1 allow-stateless
>> check ovn-nbctl --wait=hv acl-add foo to-lport 1 1 allow-stateless
>>
>> AT_CHECK([ip netns exec foo1 wget http://[[fd12::2]] -t 3 -T 1], [0],
>> [ignore], [ignore])
>>
>> -# check conntrack zone has no tcp entry
>> +# Check conntrack zone has no tcp entry.
>> AT_CHECK([ovs-appctl dpctl/dump-conntrack zone=$zone_id | \
>> FORMAT_CT(fd12::2) | grep -v fe80 | \
>> sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
>> @@ -10232,7 +10360,7 @@ sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
>>
>> AT_CHECK([ovs-appctl dpctl/flush-conntrack])
>>
>> -# add lb back
>> +# Add Load Balancer back.
>> check ovn-nbctl ls-lb-add foo lb1
>>
>> # Wait for ovn-controller to catch up.
>> @@ -10241,13 +10369,14 @@ check ovn-nbctl --wait=hv sync
>> OVS_WAIT_UNTIL([ovs-ofctl -O OpenFlow13 dump-groups br-int | \
>> grep 'nat(dst=\[[fd12::2\]]:80)'])
>>
>> -# should not dnat so will not be able to connect
>> -AT_CHECK([ip netns exec foo1 curl http://[[fd30::2]] --retry 3 --max-time
>> 1], [28], [ignore], [ignore])
>> -#
>> -# check conntrack zone has no tcp entry
>> +# Now check with VIP.
>> +AT_CHECK([ip netns exec foo1 wget http://[[fd30::2]] -t 3 -T 1], [0],
>> [ignore], [ignore])
>> +
>> +# Check conntrack zone has tcp entry.
>> AT_CHECK([ovs-appctl dpctl/dump-conntrack zone=$zone_id | \
>> FORMAT_CT(fd30::2) | grep -v fe80 | \
>> sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
>> +tcp,orig=(src=fd11::2,dst=fd30::2,sport=<cleared>,dport=<cleared>),reply=(src=fd12::2,dst=fd11::2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
>> ])
>>
>> AT_CHECK([ovs-appctl dpctl/flush-conntrack])
> Regards,
> Dumitru
>
--
regards,
Alexandra.
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