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From: Stefan Hanreich <s.hanreich@proxmox.com>
To: pve-devel@lists.proxmox.com
Date: Tue, 2 Apr 2024 19:16:28 +0200
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Subject: [pve-devel] [PATCH pve-firewall 36/37] add configuration option for
new nftables firewall
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Introduces new nftables configuration option that en/disables the new
nftables firewall.
pve-firewall reads this option and only generates iptables rules when
nftables is set to `0`. Conversely proxmox-firewall only generates
nftables rules when the option is set to `1`.
Signed-off-by: Stefan Hanreich <s.hanreich@proxmox.com>
---
src/PVE/Firewall.pm | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/src/PVE/Firewall.pm b/src/PVE/Firewall.pm
index 77cbaf4..5438b80 100644
--- a/src/PVE/Firewall.pm
+++ b/src/PVE/Firewall.pm
@@ -1408,6 +1408,12 @@ our $host_option_properties = {
default => 0,
optional => 1
},
+ nftables => {
+ description => "Enable nftables based firewall",
+ type => 'boolean',
+ default => 0,
+ optional => 1,
+ },
};
our $vm_option_properties = {
@@ -2929,7 +2935,7 @@ sub parse_hostfw_option {
my $loglevels = "emerg|alert|crit|err|warning|notice|info|debug|nolog";
- if ($line =~ m/^(enable|nosmurfs|tcpflags|ndp|log_nf_conntrack|nf_conntrack_allow_invalid|protection_synflood):\s*(0|1)\s*$/i) {
+ if ($line =~ m/^(enable|nosmurfs|tcpflags|ndp|log_nf_conntrack|nf_conntrack_allow_invalid|protection_synflood|nftables):\s*(0|1)\s*$/i) {
$opt = lc($1);
$value = int($2);
} elsif ($line =~ m/^(log_level_in|log_level_out|tcp_flags_log_level|smurf_log_level):\s*(($loglevels)\s*)?$/i) {
@@ -4676,7 +4682,11 @@ sub remove_pvefw_chains_ebtables {
sub init {
my $cluster_conf = load_clusterfw_conf();
my $cluster_options = $cluster_conf->{options};
- my $enable = $cluster_options->{enable};
+
+ my $host_conf = load_hostfw_conf($cluster_conf);
+ my $host_options = $host_conf->{options};
+
+ my $enable = $cluster_options->{enable} && !$host_options->{nftables};
return if !$enable;
@@ -4689,12 +4699,14 @@ sub update {
my $cluster_conf = load_clusterfw_conf();
my $cluster_options = $cluster_conf->{options};
- if (!$cluster_options->{enable}) {
+ my $hostfw_conf = load_hostfw_conf($cluster_conf);
+ my $host_options = $hostfw_conf->{options};
+
+ if (!$cluster_options->{enable} || $host_options->{nftables}) {
PVE::Firewall::remove_pvefw_chains();
return;
}
- my $hostfw_conf = load_hostfw_conf($cluster_conf);
my ($ruleset, $ipset_ruleset, $rulesetv6, $ebtables_ruleset) = compile($cluster_conf, $hostfw_conf);
--
2.39.2