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StackNode refactor: add offsetToIP argument to Encapsulate

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This commit is contained in:
Patricio Whittingslow
2025-12-19 00:38:28 -03:00
parent eaa36a589a
commit 1554b89a08
22 changed files with 180 additions and 94 deletions
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examples/stackbasic/main.go
+4 -4
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@@ -232,7 +232,7 @@ func NewEthernetTCPStack(ourMAC, gwMAC [6]byte, ip netip.AddrPort, mtu uint16, s
type handler struct {
raddr []byte
recv func([]byte, int) error
handle func([]byte, int) (int, error)
handle func([]byte, int, int) (int, error)
proto ethernet.Type
lport uint16
}
@@ -295,7 +295,7 @@ func (ls *LinkStack) HandleEth(dst []byte) (n int, err error) {
copy(efrm.DestinationHardwareAddr()[:], ls.gwmac[:]) // default set the gateway.
for i := range ls.handlers {
h := &ls.handlers[i]
n, err = h.handle(dst[:mtu], 14)
n, err = h.handle(dst[:mtu], 14, 14)
if err != nil {
ls.error("handling", slog.String("proto", ethernet.Type(h.proto).String()), slog.String("err", err.Error()))
continue
@@ -322,8 +322,8 @@ func (as *ARPStack) Recv(EtherFrame []byte, arpOff int) error {
return as.handler.Demux(EtherFrame, arpOff)
}
func (as *ARPStack) Handle(EtherFrame []byte, arpOff int) (int, error) {
n, err := as.handler.Encapsulate(EtherFrame, arpOff)
func (as *ARPStack) Handle(EtherFrame []byte, offsetToIP, arpOff int) (int, error) {
n, err := as.handler.Encapsulate(EtherFrame, offsetToIP, arpOff)
if err != nil || n == 0 {
return 0, err
}