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Add ICMPv4 and lneto.StackNode and deprecate internet.StackNode (#65)

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* begin adding icmp client

* rely on anon structs

* add tests

* tests passing

* icmp fleshed out

* rework icmp to include ip addr

* rename StackAsync.Demux/Encapsulate to RecvEthernet and SendEthernet

* remove legacy unreachable TCP tests

* remove uses of deprecated internet.StackNode in preference of lneto.StackNode

* documentation

* rename methods to signal no I/O happening
This commit is contained in:
Pat Whittingslow
2026-04-09 09:07:16 -03:00
committed by GitHub
parent 22c7e6c9d8
commit ec44889896
26 changed files with 679 additions and 209 deletions
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internet/stack-ip.go
+6 -2
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@@ -13,7 +13,7 @@ import (
"github.com/soypat/lneto/udp"
)
var _ StackNode = (*StackIP)(nil)
var _ lneto.StackNode = (*StackIP)(nil)
type StackIP struct {
connID uint64
@@ -205,7 +205,7 @@ func (sb *StackIP) Encapsulate(carrierData []byte, offsetToIP, offsetToFrame int
return totalLen, err
}
func (sb *StackIP) Register(h StackNode) error {
func (sb *StackIP) Register(h lneto.StackNode) error {
proto := h.Protocol()
if proto > 255 {
return lneto.ErrInvalidConfig
@@ -213,6 +213,10 @@ func (sb *StackIP) Register(h StackNode) error {
return sb.handlers.registerByPortProto(nodeFromStackNode(h, h.LocalPort(), proto, nil))
}
func (sb *StackIP) IsRegistered(proto lneto.IPProto) bool {
return sb.handlers.nodeByProto(uint16(proto)) != nil
}
func (sb *StackIP) recvicmp(icmpData []byte) error {
var crc lneto.CRC791
if crc.PayloadSum16(icmpData) != 0 {