diff options
Diffstat (limited to 'pkg/tcpip/stack/conntrack.go')
| -rw-r--r-- | pkg/tcpip/stack/conntrack.go | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/pkg/tcpip/stack/conntrack.go b/pkg/tcpip/stack/conntrack.go index 4f4065f48..9a17efcba 100644 --- a/pkg/tcpip/stack/conntrack.go +++ b/pkg/tcpip/stack/conntrack.go @@ -401,12 +401,12 @@ func handlePacketOutput(pkt *PacketBuffer, conn *conn, gso *GSO, r *Route, dir d // Calculate the TCP checksum and set it. tcpHeader.SetChecksum(0) - length := uint16(pkt.Size()) - uint16(len(pkt.NetworkHeader().View())) - xsum := r.PseudoHeaderChecksum(header.TCPProtocolNumber, length) + length := uint16(len(tcpHeader) + pkt.Data.Size()) + xsum := header.PseudoHeaderChecksum(header.TCPProtocolNumber, netHeader.SourceAddress(), netHeader.DestinationAddress(), length) if gso != nil && gso.NeedsCsum { tcpHeader.SetChecksum(xsum) - } else if r.Capabilities()&CapabilityTXChecksumOffload == 0 { - xsum = header.ChecksumVVWithOffset(pkt.Data, xsum, int(tcpHeader.DataOffset()), pkt.Data.Size()) + } else if r.RequiresTXTransportChecksum() { + xsum = header.ChecksumVV(pkt.Data, xsum) tcpHeader.SetChecksum(^tcpHeader.CalculateChecksum(xsum)) } |