Adds a connmark attribute with the VMID inside to anything flowing
in/out the guest, which are also carried over to all conntrack entries.
This enables differentiating conntrack entries between VMs for
live-migration.
Signed-off-by: Christoph Heiss <c.he...@proxmox.com>
---
Changes v1 -> v2:
* no changes
Changes v2 -> v3:
* rebased on trixie
src/PVE/Firewall.pm | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/src/PVE/Firewall.pm b/src/PVE/Firewall.pm
index 41b740a..e9996ef 100644
--- a/src/PVE/Firewall.pm
+++ b/src/PVE/Firewall.pm
@@ -2551,11 +2551,14 @@ sub ruleset_chain_add_input_filters {
}
sub ruleset_create_vm_chain {
- my ($ruleset, $chain, $ipversion, $options, $macaddr, $ipfilter_ipset,
$direction) = @_;
+ my ($ruleset, $chain, $ipversion, $options, $macaddr, $ipfilter_ipset,
$direction, $vmid) = @_;
ruleset_create_chain($ruleset, $chain);
my $accept = generate_nfqueue($options);
+ # needs to be first, to ensure that it gets always applied
+ ruleset_addrule($ruleset, $chain, "", "-j CONNMARK --set-mark $vmid");
+
if (!(defined($options->{dhcp}) && $options->{dhcp} == 0)) {
if ($ipversion == 4) {
if ($direction eq 'OUT') {
@@ -2796,7 +2799,14 @@ sub generate_tap_rules_direction {
if ($options->{enable}) {
# create chain with mac and ip filter
ruleset_create_vm_chain(
- $ruleset, $tapchain, $ipversion, $options, $macaddr,
$ipfilter_ipset, $direction,
+ $ruleset,
+ $tapchain,
+ $ipversion,
+ $options,
+ $macaddr,
+ $ipfilter_ipset,
+ $direction,
+ $vmid,
);
ruleset_generate_vm_rules(
--
2.49.0
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