Hi Lorenzo

Thanks for providing this patch.
One very minor typo: see below.
Otherwise looks good to me

Thanks
Xavier

On Tue, Oct 4, 2022 at 8:00 PM Lorenzo Bianconi <[email protected]>
wrote:

> Fix regression in ipv6 prefix delegation running in gw router mode
> introduce by the following commit '04292cc2dc2c ("controller: fix
> potential segmentation violation when removing ports")'.
>
> Fixes: 04292cc2dc2c ("controller: fix potential segmentation violation
> when removing ports")
> Reoported-at: https://bugzilla.redhat.com/show_bug.cgi?id=2129244
> Reoported-at
> <https://bugzilla.redhat.com/show_bug.cgi?id=2129244Reoported-at>:
> https://bugzilla.redhat.com/show_bug.cgi?id=2129247
> <https://bugzilla.redhat.com/show_bug.cgi?id=2129247Acked-by>

There is a typo on those two lines: should be Reported-at

Acked-by <https://bugzilla.redhat.com/show_bug.cgi?id=2129247Acked-by>:
> Mark Michelson <[email protected]>
> Signed-off-by: Lorenzo Bianconi <[email protected]>
> ---
> Changes since v1:
> - rename need_add_patch_peer_to_local in need_add_peer_to_local
> - refactor IPv6 PD system-test
> ---
>  controller/binding.c    |  4 +--
>  controller/local_data.c | 13 ++++---
>  controller/local_data.h |  2 +-
>  tests/system-ovn.at     | 79 +++++++++++++++++++++++++++--------------
>  4 files changed, 64 insertions(+), 34 deletions(-)
>
> diff --git a/controller/binding.c b/controller/binding.c
> index 8f6b4b19d..c3d2b2e42 100644
> --- a/controller/binding.c
> +++ b/controller/binding.c
> @@ -2666,7 +2666,7 @@ consider_patch_port_for_local_datapaths(const struct
> sbrec_port_binding *pb,
>                  get_local_datapath(b_ctx_out->local_datapaths,
>                                     peer->datapath->tunnel_key);
>          }
> -        if (peer_ld && need_add_patch_peer_to_local(
> +        if (peer_ld && need_add_peer_to_local(
>                  b_ctx_in->sbrec_port_binding_by_name, peer,
>                  b_ctx_in->chassis_rec)) {
>              add_local_datapath(
> @@ -2681,7 +2681,7 @@ consider_patch_port_for_local_datapaths(const struct
> sbrec_port_binding *pb,
>          /* Add the peer datapath to the local datapaths if it's
>           * not present yet.
>           */
> -        if (need_add_patch_peer_to_local(
> +        if (need_add_peer_to_local(
>                  b_ctx_in->sbrec_port_binding_by_name, pb,
>                  b_ctx_in->chassis_rec)) {
>              add_local_datapath_peer_port(
> diff --git a/controller/local_data.c b/controller/local_data.c
> index 9eee568d1..035f10fff 100644
> --- a/controller/local_data.c
> +++ b/controller/local_data.c
> @@ -115,14 +115,19 @@ local_datapath_destroy(struct local_datapath *ld)
>      free(ld);
>  }
>
> -/* Checks if pb is a patch port and the peer datapath should be added to
> local
> - * datapaths. */
> +/* Checks if pb is running on local gw router or pb is a patch port
> + * and the peer datapath should be added to local datapaths. */
>  bool
> -need_add_patch_peer_to_local(
> +need_add_peer_to_local(
>      struct ovsdb_idl_index *sbrec_port_binding_by_name,
>      const struct sbrec_port_binding *pb,
>      const struct sbrec_chassis *chassis)
>  {
> +    /* This port is running on local gw router. */
> +    if (!strcmp(pb->type, "l3gateway") && pb->chassis == chassis) {
> +        return true;
> +    }
> +
>      /* If it is not a patch port, no peer to add. */
>      if (strcmp(pb->type, "patch")) {
>          return false;
> @@ -571,7 +576,7 @@ add_local_datapath__(struct ovsdb_idl_index
> *sbrec_datapath_binding_by_key,
>                                              peer_name);
>
>                  if (peer && peer->datapath) {
> -                    if (need_add_patch_peer_to_local(
> +                    if (need_add_peer_to_local(
>                              sbrec_port_binding_by_name, pb, chassis)) {
>                          struct local_datapath *peer_ld =
>
>  add_local_datapath__(sbrec_datapath_binding_by_key,
> diff --git a/controller/local_data.h b/controller/local_data.h
> index d898c8aa5..b5429eb58 100644
> --- a/controller/local_data.h
> +++ b/controller/local_data.h
> @@ -66,7 +66,7 @@ struct local_datapath *local_datapath_alloc(
>  struct local_datapath *get_local_datapath(const struct hmap *,
>                                            uint32_t tunnel_key);
>  bool
> -need_add_patch_peer_to_local(
> +need_add_peer_to_local(
>      struct ovsdb_idl_index *sbrec_port_binding_by_name,
>      const struct sbrec_port_binding *,
>      const struct sbrec_chassis *);
> diff --git a/tests/system-ovn.at b/tests/system-ovn.at
> index d6ecd6eee..a8bb05bd6 100644
> --- a/tests/system-ovn.at
> +++ b/tests/system-ovn.at
> @@ -5280,22 +5280,20 @@ AT_KEYWORDS([ovn-ipv6-prefix_d])
>  ovn_start
>  OVS_TRAFFIC_VSWITCHD_START()
>
> -ADD_BR([br-int])
> -ADD_BR([br-ext])
> -
> -ovs-ofctl add-flow br-ext action=normal
> -# 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
> +cleanup_env () {
> +ip netns exec server kill $(pidof dhcpd)
> +ovn-nbctl lr-del R1
> +ovn-nbctl ls-del sw0
> +ovn-nbctl ls-del sw1
> +ovn-nbctl ls-del public
> +}
>
> -ovn-nbctl lr-add R1
> +run_ipv6_pd_test () {
> +if [[ "$1" == "gw-router" ]]; then
> +    ovn-nbctl create Logical_Router name=R1 options:chassis=hv1
> +else
> +    ovn-nbctl lr-add R1
> +fi
>
>  ovn-nbctl ls-add sw0
>  ovn-nbctl ls-add sw1
> @@ -5303,8 +5301,11 @@ ovn-nbctl ls-add public
>
>  ovn-nbctl lrp-add R1 rp-sw0 00:00:01:01:02:03 192.168.1.1/24
>  ovn-nbctl lrp-add R1 rp-sw1 00:00:03:01:02:03 192.168.2.1/24
> -ovn-nbctl lrp-add R1 rp-public 00:00:02:01:02:03 172.16.1.1/24 \
> -    -- lrp-set-gateway-chassis rp-public hv1
> +ovn-nbctl lrp-add R1 rp-public 00:00:02:01:02:03 172.16.1.1/24
> +
> +if [[ "$1" != "gw-router" ]]; then
> +    ovn-nbctl lrp-set-gateway-chassis rp-public hv1
> +fi
>
>  ovn-nbctl lsp-add sw0 sw0-rp -- set Logical_Switch_Port sw0-rp \
>      type=router options:router-port=rp-sw0 \
> @@ -5317,22 +5318,12 @@ ovn-nbctl lsp-add public public-rp -- set
> Logical_Switch_Port public-rp \
>      type=router options:router-port=rp-public \
>      -- lsp-set-addresses public-rp router
>
> -ADD_NAMESPACES(sw01)
> -ADD_VETH(sw01, sw01, br-int, "192.168.1.2/24", "f0:00:00:01:02:03", \
> -         "192.168.1.1")
>  ovn-nbctl lsp-add sw0 sw01 \
>      -- lsp-set-addresses sw01 "f0:00:00:01:02:03 192.168.1.2"
>
> -ADD_NAMESPACES(sw11)
> -ADD_VETH(sw11, sw11, br-int, "192.168.2.2/24", "f0:00:00:02:02:03", \
> -         "192.168.2.1")
>  ovn-nbctl lsp-add sw1 sw11 \
>      -- lsp-set-addresses sw11 "f0:00:00:02:02:03 192.168.2.2"
>
> -ADD_NAMESPACES(server)
> -ADD_VETH(s1, server, br-ext, "2001:1db8:3333::2/64", "f0:00:00:01:02:05",
> \
> -         "2001:1db8:3333::1")
> -
>  OVS_WAIT_UNTIL([test "$(ip netns exec server ip a | grep
> 2001:1db8:3333::2 | grep tentative)" = ""])
>  OVS_WAIT_UNTIL([test "$(ip netns exec server ip a | grep fe80 | grep
> tentative)" = ""])
>
> @@ -5409,6 +5400,39 @@ OVS_WAIT_WHILE([test "$(ovn-nbctl get
> logical_router_port rp-sw0 ipv6_prefix | c
>  AT_CHECK([ovn-nbctl get logical_router_port rp-sw0 ipv6_prefix | cut
> -c3-16], [0], [dnl
>  []
>  ])
> +}
> +
> +ADD_BR([br-int])
> +ADD_BR([br-ext])
> +
> +ovs-ofctl add-flow br-ext action=normal
> +# 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
> +
> +ADD_NAMESPACES(sw01)
> +ADD_VETH(sw01, sw01, br-int, "192.168.1.2/24", "f0:00:00:01:02:03", \
> +         "192.168.1.1")
> +ADD_NAMESPACES(sw11)
> +ADD_VETH(sw11, sw11, br-int, "192.168.2.2/24", "f0:00:00:02:02:03", \
> +         "192.168.2.1")
> +ADD_NAMESPACES(server)
> +ADD_VETH(s1, server, br-ext, "2001:1db8:3333::2/64", "f0:00:00:01:02:05",
> \
> +         "2001:1db8:3333::1")
> +
> +# run test for distributed router mode
> +run_ipv6_pd_test "distributed-router"
> +# cleanup env
> +cleanup_env
> +# run test for gw router mode
> +run_ipv6_pd_test "gw-router"
>
>  kill $(pidof ovn-controller)
>
> @@ -5423,6 +5447,7 @@ OVS_APP_EXIT_AND_WAIT([NORTHD_TYPE])
>
>  as
>  OVS_TRAFFIC_VSWITCHD_STOP(["/.*error receiving.*/d
> +/failed to query port patch-.*/d
>  /.*terminating with signal 15.*/d"])
>  AT_CLEANUP
>  ])
> --
> 2.37.3
>
>
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