diff options
Diffstat (limited to 'pkg/tcpip/sample')
| -rw-r--r-- | pkg/tcpip/sample/tun_tcp_connect/main.go | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/pkg/tcpip/sample/tun_tcp_connect/main.go b/pkg/tcpip/sample/tun_tcp_connect/main.go index 138941afd..06ee5110b 100644 --- a/pkg/tcpip/sample/tun_tcp_connect/main.go +++ b/pkg/tcpip/sample/tun_tcp_connect/main.go @@ -156,7 +156,7 @@ func (info *GreHandlerInfo) greRead(ep *channel.Endpoint) { for { pi, err := ep.ReadContext(context.Background()); linkHdr := pi.Pkt.LinkHeader() - greHdr := header.GRE(linkHdr.Push(4)) //header.IPv4MinimumSize + 4) + greHdr := header.GRE(linkHdr.Push(header.GREHeaderSize)) greHdr.SetProtocolType(pi.Proto) log.Printf("greRead %d %v %v %v", pi.Proto, pi, err, greHdr) opts := tcpip.WriteOptions{ @@ -253,7 +253,8 @@ func main() { // Create GRE greEP := grelink.New(mtu - 24) chEP := greEP.GetChannel() - greEP.NMaxHeaderLength = 4 + 20 + // TODO detect IPv4/IPv6 + greEP.NMaxHeaderLength = header.IPv6FixedHeaderSize + header.GREHeaderSize greInfo := GreHandlerInfo{ // Ep: loEP, |