From: Alexandre Derumier <aderumier@odiso.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH v7 pve-network 19/21] zones: evpn|simple: add snat iptables rules
Date: Fri, 28 Aug 2020 14:36:47 +0200 [thread overview]
Message-ID: <20200828123649.11125-20-aderumier@odiso.com> (raw)
In-Reply-To: <20200828123649.11125-1-aderumier@odiso.com>
(use snat instead masquerade for performance)
---
PVE/Network/SDN/Zones/EvpnPlugin.pm | 18 ++++++++++++++++++
PVE/Network/SDN/Zones/SimplePlugin.pm | 12 ++++++++++++
2 files changed, 30 insertions(+)
diff --git a/PVE/Network/SDN/Zones/EvpnPlugin.pm b/PVE/Network/SDN/Zones/EvpnPlugin.pm
index ff25f12..b89f4b1 100644
--- a/PVE/Network/SDN/Zones/EvpnPlugin.pm
+++ b/PVE/Network/SDN/Zones/EvpnPlugin.pm
@@ -51,6 +51,7 @@ sub generate_sdn_config {
my $vrf_iface = "vrf_$zoneid";
my $vrfvxlan = $plugin_config->{'vrf-vxlan'};
+ my $local_node = PVE::INotify::nodename();
die "missing vxlan tag" if !$tag;
warn "vlan-aware vnet can't be enabled with evpn plugin" if $vnet->{vlanaware};
@@ -86,6 +87,23 @@ sub generate_sdn_config {
push @iface_config, "address $gateway" if !defined($address->{$gateway});
$address->{$gateway} = 1;
}
+ if ($subnet->{snat}) {
+ my $gatewaynodes = $controller->{'gateway-nodes'};
+ my $is_evpn_gateway = "";
+ foreach my $evpn_gatewaynode (PVE::Tools::split_list($gatewaynodes)) {
+ $is_evpn_gateway = 1 if $evpn_gatewaynode eq $local_node;
+ }
+ #find outgoing interface
+ my ($outip, $outiface) = PVE::Network::SDN::Zones::Plugin::get_local_route_ip('8.8.8.8');
+ if ($outip && $outiface && $is_evpn_gateway) {
+ #use snat, faster than masquerade
+ push @iface_config, "post-up iptables -t nat -A POSTROUTING -s '$cidr' -o $outiface -j SNAT --to-source $outip";
+ push @iface_config, "post-down iptables -t nat -D POSTROUTING -s '$cidr' -o $outiface -j SNAT --to-source $outip";
+ #add conntrack zone once on outgoing interface
+ push @iface_config, "post-up iptables -t raw -I PREROUTING -i fwbr+ -j CT --zone 1";
+ push @iface_config, "post-down iptables -t raw -D PREROUTING -i fwbr+ -j CT --zone 1";
+ }
+ }
}
push @iface_config, "hwaddress $mac" if $mac;
diff --git a/PVE/Network/SDN/Zones/SimplePlugin.pm b/PVE/Network/SDN/Zones/SimplePlugin.pm
index a4299dd..c58ae87 100644
--- a/PVE/Network/SDN/Zones/SimplePlugin.pm
+++ b/PVE/Network/SDN/Zones/SimplePlugin.pm
@@ -48,6 +48,18 @@ sub generate_sdn_config {
#add route for /32 pointtopoint
my ($ip, $mask) = split(/\//, $cidr);
push @iface_config, "up ip route add $cidr dev $vnetid" if $mask == 32;
+ if ($subnet->{snat}) {
+ #find outgoing interface
+ my ($outip, $outiface) = PVE::Network::SDN::Zones::Plugin::get_local_route_ip('8.8.8.8');
+ if ($outip && $outiface) {
+ #use snat, faster than masquerade
+ push @iface_config, "post-up iptables -t nat -A POSTROUTING -s '$cidr' -o $outiface -j SNAT --to-source $outip";
+ push @iface_config, "post-down iptables -t nat -D POSTROUTING -s '$cidr' -o $outiface -j SNAT --to-source $outip";
+ #add conntrack zone once on outgoing interface
+ push @iface_config, "post-up iptables -t raw -I PREROUTING -i fwbr+ -j CT --zone 1";
+ push @iface_config, "post-down iptables -t raw -D PREROUTING -i fwbr+ -j CT --zone 1";
+ }
+ }
}
push @iface_config, "hwaddress $mac" if $mac;
--
2.20.1
next prev parent reply other threads:[~2020-08-28 12:37 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-28 12:36 [pve-devel] [PATCH v7 pve-network 00/21] sdn : add subnets management Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 01/21] add subnet plugin Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 02/21] vnets: add subnets Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 03/21] add subnets verifications hooks Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 04/21] zones: simple|evpn: add gateway ip from subnets to vnet Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 05/21] zone: add vnet_update_hook Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 06/21] vnets: subnets: use cidr Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 07/21] subnet: fix on_delete_hook Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 08/21] api2: subnet create: convert cidr to subnetid Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 09/21] api2: increase version on apply/reload only Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 10/21] add ipams plugins Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 11/21] add pve internal ipam plugin Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 12/21] vnets: find_free_ip : add ipversion detection Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 13/21] vnets: add add_ip Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 14/21] vnets: add del_ip + rework add_ip/find_free_ip Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 15/21] add dns plugin Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 16/21] Fix vnet gateway for routed setup + /32 pointopoint subnet Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 17/21] ipam : pveplugin : fix find_next_free_ip Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 18/21] add vnet to subnets && remove subnetlist from vnet Alexandre Derumier
2020-08-28 12:36 ` Alexandre Derumier [this message]
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 20/21] subnet: disable route option for now and add dns domain format Alexandre Derumier
2020-08-28 12:36 ` [pve-devel] [PATCH v7 pve-network 21/21] dns: fix reverse dns Alexandre Derumier
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