diff --git a/client/firewall/iptables/manager_linux.go b/client/firewall/iptables/manager_linux.go index 716385705..04c338375 100644 --- a/client/firewall/iptables/manager_linux.go +++ b/client/firewall/iptables/manager_linux.go @@ -23,9 +23,10 @@ type Manager struct { wgIface iFaceMapper - ipv4Client *iptables.IPTables - aclMgr *aclManager - router *router + ipv4Client *iptables.IPTables + aclMgr *aclManager + router *router + rawSupported bool } // iFaceMapper defines subset methods of interface required for manager @@ -84,7 +85,7 @@ func (m *Manager) Init(stateManager *statemanager.Manager) error { } if err := m.initNoTrackChain(); err != nil { - return fmt.Errorf("init notrack chain: %w", err) + log.Warnf("raw table not available, notrack rules will be disabled: %v", err) } // persist early to ensure cleanup of chains @@ -318,6 +319,10 @@ func (m *Manager) SetupEBPFProxyNoTrack(proxyPort, wgPort uint16) error { m.mutex.Lock() defer m.mutex.Unlock() + if !m.rawSupported { + return fmt.Errorf("raw table not available") + } + wgPortStr := fmt.Sprintf("%d", wgPort) proxyPortStr := fmt.Sprintf("%d", proxyPort) @@ -375,12 +380,16 @@ func (m *Manager) initNoTrackChain() error { return fmt.Errorf("add prerouting jump rule: %w", err) } + m.rawSupported = true return nil } func (m *Manager) cleanupNoTrackChain() error { exists, err := m.ipv4Client.ChainExists(tableRaw, chainNameRaw) if err != nil { + if !m.rawSupported { + return nil + } return fmt.Errorf("check chain exists: %w", err) } if !exists { @@ -401,6 +410,7 @@ func (m *Manager) cleanupNoTrackChain() error { return fmt.Errorf("clear and delete chain: %w", err) } + m.rawSupported = false return nil } diff --git a/client/firewall/nftables/manager_linux.go b/client/firewall/nftables/manager_linux.go index acf482f86..f57b28abc 100644 --- a/client/firewall/nftables/manager_linux.go +++ b/client/firewall/nftables/manager_linux.go @@ -95,7 +95,7 @@ func (m *Manager) Init(stateManager *statemanager.Manager) error { } if err := m.initNoTrackChains(workTable); err != nil { - return fmt.Errorf("init notrack chains: %w", err) + log.Warnf("raw priority chains not available, notrack rules will be disabled: %v", err) } stateManager.RegisterState(&ShutdownState{})