diff options
Diffstat (limited to 'pkg/tcpip/stack/iptables_targets.go')
| -rw-r--r-- | pkg/tcpip/stack/iptables_targets.go | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/pkg/tcpip/stack/iptables_targets.go b/pkg/tcpip/stack/iptables_targets.go index dc88033c7..5f1b2af64 100644 --- a/pkg/tcpip/stack/iptables_targets.go +++ b/pkg/tcpip/stack/iptables_targets.go @@ -99,7 +99,7 @@ func (rt RedirectTarget) Action(pkt *PacketBuffer, ct *ConnTrack, hook Hook, gso } // Drop the packet if network and transport header are not set. - if pkt.NetworkHeader == nil || pkt.TransportHeader == nil { + if pkt.NetworkHeader().View().IsEmpty() || pkt.TransportHeader().View().IsEmpty() { return RuleDrop, 0 } @@ -118,17 +118,16 @@ func (rt RedirectTarget) Action(pkt *PacketBuffer, ct *ConnTrack, hook Hook, gso // TODO(gvisor.dev/issue/170): Check Flags in RedirectTarget if // we need to change dest address (for OUTPUT chain) or ports. - netHeader := header.IPv4(pkt.NetworkHeader) + netHeader := header.IPv4(pkt.NetworkHeader().View()) switch protocol := netHeader.TransportProtocol(); protocol { case header.UDPProtocolNumber: - udpHeader := header.UDP(pkt.TransportHeader) + udpHeader := header.UDP(pkt.TransportHeader().View()) udpHeader.SetDestinationPort(rt.MinPort) // Calculate UDP checksum and set it. if hook == Output { udpHeader.SetChecksum(0) - hdr := &pkt.Header - length := uint16(pkt.Data.Size()+hdr.UsedLength()) - uint16(netHeader.HeaderLength()) + length := uint16(pkt.Size()) - uint16(netHeader.HeaderLength()) // Only calculate the checksum if offloading isn't supported. if r.Capabilities()&CapabilityTXChecksumOffload == 0 { |