From e614da43f13e3c61f9b78ee9984364495eff91b6 Mon Sep 17 00:00:00 2001 From: Alexandre Derumier Date: Sun, 3 Dec 2023 16:46:08 +0100 Subject: [PATCH] controllers: evpn: bugfix: use prefix-list in route-map instead evpn match "match evpn" in route-map is broken since 8.5.0 https://github.com/FRRouting/frr/issues/14419 the patch https://github.com/FRRouting/frr/commit/272c6d5db128ff7450fe9fcd16c046160594deb3 is converting type-2 && type-5 evpn routes to prefix-prefix. (fixing prefix-list not working previously, but breaking "match evpn") So, simply use prefix-list now, as "match epvn" was a workaround anyway. reported on the forum, where user have routing loop between the 2 exit-nodes: https://forum.proxmox.com/threads/sdn-with-evpn-controller-routing-loop-when-using-multiple-exit-nodes.137362/ Signed-off-by: Alexandre Derumier --- src/PVE/Network/SDN/Controllers/EvpnPlugin.pm | 26 ++++++++++++++----- .../evpn/exitnode/expected_controller_config | 13 +++++++--- .../expected_controller_config | 13 +++++++--- .../expected_controller_config | 12 +++++++-- .../exitnode_snat/expected_controller_config | 13 +++++++--- .../expected_controller_config | 20 ++++++++++---- 6 files changed, 74 insertions(+), 23 deletions(-) diff --git a/src/PVE/Network/SDN/Controllers/EvpnPlugin.pm b/src/PVE/Network/SDN/Controllers/EvpnPlugin.pm index e536226..f1605a3 100644 --- a/src/PVE/Network/SDN/Controllers/EvpnPlugin.pm +++ b/src/PVE/Network/SDN/Controllers/EvpnPlugin.pm @@ -188,22 +188,34 @@ sub generate_controller_zone_config { if ($is_gateway) { + $config->{frr_prefix_list}->{'only_default'}->{1} = "permit 0.0.0.0/0"; + $config->{frr_prefix_list_v6}->{'only_default_v6'}->{1} = "permit ::/0"; + if (!$exitnodes_primary || $exitnodes_primary eq $local_node) { - #filter default type5 route coming from other exit nodes on primary node or both nodes if no primary is defined. + #filter default route coming from other exit nodes on primary node or both nodes if no primary is defined. + my $routemap_config_v6 = (); + push @{$routemap_config_v6}, "match ip address prefix-list only_default_v6"; + my $routemap_v6 = { rule => $routemap_config_v6, action => "deny" }; + unshift(@{$config->{frr_routemap}->{'MAP_VTEP_IN'}}, $routemap_v6); + my $routemap_config = (); - push @{$routemap_config}, "match evpn vni $vrfvxlan"; - push @{$routemap_config}, "match evpn route-type prefix"; + push @{$routemap_config}, "match ip address prefix-list only_default"; my $routemap = { rule => $routemap_config, action => "deny" }; unshift(@{$config->{frr_routemap}->{'MAP_VTEP_IN'}}, $routemap); + } elsif ($exitnodes_primary ne $local_node) { + my $routemap_config_v6 = (); + push @{$routemap_config_v6}, "match ipv6 address prefix-list only_default_v6"; + push @{$routemap_config_v6}, "set metric 200"; + my $routemap_v6 = { rule => $routemap_config_v6, action => "permit" }; + unshift(@{$config->{frr_routemap}->{'MAP_VTEP_OUT'}}, $routemap_v6); + my $routemap_config = (); - push @{$routemap_config}, "match evpn vni $vrfvxlan"; - push @{$routemap_config}, "match evpn route-type prefix"; + push @{$routemap_config}, "match ip address prefix-list only_default"; push @{$routemap_config}, "set metric 200"; my $routemap = { rule => $routemap_config, action => "permit" }; unshift(@{$config->{frr_routemap}->{'MAP_VTEP_OUT'}}, $routemap); - } - + } if (!$exitnodes_local_routing) { @controller_config = (); diff --git a/src/test/zones/evpn/exitnode/expected_controller_config b/src/test/zones/evpn/exitnode/expected_controller_config index 598233f..f327e34 100644 --- a/src/test/zones/evpn/exitnode/expected_controller_config +++ b/src/test/zones/evpn/exitnode/expected_controller_config @@ -56,12 +56,19 @@ router bgp 65000 vrf vrf_myzone exit-address-family exit ! +ip prefix-list only_default seq 1 permit 0.0.0.0/0 +! +ipv6 prefix-list only_default_v6 seq 1 permit ::/0 +! route-map MAP_VTEP_IN deny 1 - match evpn vni 1000 - match evpn route-type prefix + match ip address prefix-list only_default +exit +! +route-map MAP_VTEP_IN deny 2 + match ip address prefix-list only_default_v6 exit ! -route-map MAP_VTEP_IN permit 2 +route-map MAP_VTEP_IN permit 3 exit ! route-map MAP_VTEP_OUT permit 1 diff --git a/src/test/zones/evpn/exitnode_local_routing/expected_controller_config b/src/test/zones/evpn/exitnode_local_routing/expected_controller_config index 8c8e485..5b96cd8 100644 --- a/src/test/zones/evpn/exitnode_local_routing/expected_controller_config +++ b/src/test/zones/evpn/exitnode_local_routing/expected_controller_config @@ -40,12 +40,19 @@ router bgp 65000 vrf vrf_myzone exit-address-family exit ! +ip prefix-list only_default seq 1 permit 0.0.0.0/0 +! +ipv6 prefix-list only_default_v6 seq 1 permit ::/0 +! route-map MAP_VTEP_IN deny 1 - match evpn vni 1000 - match evpn route-type prefix + match ip address prefix-list only_default +exit +! +route-map MAP_VTEP_IN deny 2 + match ip address prefix-list only_default_v6 exit ! -route-map MAP_VTEP_IN permit 2 +route-map MAP_VTEP_IN permit 3 exit ! route-map MAP_VTEP_OUT permit 1 diff --git a/src/test/zones/evpn/exitnode_primary/expected_controller_config b/src/test/zones/evpn/exitnode_primary/expected_controller_config index ec73a38..b7f2db5 100644 --- a/src/test/zones/evpn/exitnode_primary/expected_controller_config +++ b/src/test/zones/evpn/exitnode_primary/expected_controller_config @@ -56,16 +56,24 @@ router bgp 65000 vrf vrf_myzone exit-address-family exit ! +ip prefix-list only_default seq 1 permit 0.0.0.0/0 +! +ipv6 prefix-list only_default_v6 seq 1 permit ::/0 +! route-map MAP_VTEP_IN permit 1 exit ! route-map MAP_VTEP_OUT permit 1 - match evpn vni 1000 - match evpn route-type prefix + match ip address prefix-list only_default set metric 200 exit ! route-map MAP_VTEP_OUT permit 2 + match ipv6 address prefix-list only_default_v6 + set metric 200 +exit +! +route-map MAP_VTEP_OUT permit 3 exit ! line vty diff --git a/src/test/zones/evpn/exitnode_snat/expected_controller_config b/src/test/zones/evpn/exitnode_snat/expected_controller_config index 598233f..f327e34 100644 --- a/src/test/zones/evpn/exitnode_snat/expected_controller_config +++ b/src/test/zones/evpn/exitnode_snat/expected_controller_config @@ -56,12 +56,19 @@ router bgp 65000 vrf vrf_myzone exit-address-family exit ! +ip prefix-list only_default seq 1 permit 0.0.0.0/0 +! +ipv6 prefix-list only_default_v6 seq 1 permit ::/0 +! route-map MAP_VTEP_IN deny 1 - match evpn vni 1000 - match evpn route-type prefix + match ip address prefix-list only_default +exit +! +route-map MAP_VTEP_IN deny 2 + match ip address prefix-list only_default_v6 exit ! -route-map MAP_VTEP_IN permit 2 +route-map MAP_VTEP_IN permit 3 exit ! route-map MAP_VTEP_OUT permit 1 diff --git a/src/test/zones/evpn/exitnodenullroute/expected_controller_config b/src/test/zones/evpn/exitnodenullroute/expected_controller_config index 7dc8517..1728c02 100644 --- a/src/test/zones/evpn/exitnodenullroute/expected_controller_config +++ b/src/test/zones/evpn/exitnodenullroute/expected_controller_config @@ -84,17 +84,27 @@ router bgp 65000 vrf vrf_myzone2 exit-address-family exit ! +ip prefix-list only_default seq 1 permit 0.0.0.0/0 +! +ipv6 prefix-list only_default_v6 seq 1 permit ::/0 +! route-map MAP_VTEP_IN deny 1 - match evpn vni 1001 - match evpn route-type prefix + match ip address prefix-list only_default exit ! route-map MAP_VTEP_IN deny 2 - match evpn vni 1000 - match evpn route-type prefix + match ip address prefix-list only_default_v6 +exit +! +route-map MAP_VTEP_IN deny 3 + match ip address prefix-list only_default +exit +! +route-map MAP_VTEP_IN deny 4 + match ip address prefix-list only_default_v6 exit ! -route-map MAP_VTEP_IN permit 3 +route-map MAP_VTEP_IN permit 5 exit ! route-map MAP_VTEP_OUT permit 1 -- 2.39.5