From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id 8C64A618EF for ; Mon, 28 Sep 2020 10:44:10 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 1145F2B650 for ; Mon, 28 Sep 2020 10:43:54 +0200 (CEST) Received: from kvmformation1.odiso.net (globalOdiso.M6Lille.odiso.net [89.248.211.242]) by firstgate.proxmox.com (Proxmox) with ESMTP id 11A492B424 for ; Mon, 28 Sep 2020 10:43:38 +0200 (CEST) Received: by kvmformation1.odiso.net (Postfix, from userid 0) id 0807FD686A; Mon, 28 Sep 2020 10:43:38 +0200 (CEST) From: Alexandre Derumier To: pve-devel@lists.proxmox.com Date: Mon, 28 Sep 2020 10:43:29 +0200 Message-Id: <20200928084336.3487196-20-aderumier@odiso.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200928084336.3487196-1-aderumier@odiso.com> References: <20200928084336.3487196-1-aderumier@odiso.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 1 AWL -0.455 Adjusted score from AWL reputation of From: address HEADER_FROM_DIFFERENT_DOMAINS 0.078 From and EnvelopeFrom 2nd level mail domains are different KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment KAM_LAZY_DOMAIN_SECURITY 1 Sending domain does not have any anti-forgery methods KHOP_HELO_FCRDNS 0.399 Relay HELO differs from its IP's reverse DNS NO_DNS_FOR_FROM 0.379 Envelope sender has no MX or A DNS records SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_NONE 0.001 SPF: sender does not publish an SPF Record Subject: [pve-devel] [PATCH v9 pve-network 19/26] zones: evpn|simple: add snat iptables rules X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Sep 2020 08:44:10 -0000 (use snat instead masquerade for performance) Signed-off-by: Alexandre Derumier --- 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