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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
Download Patch File Download Diff File Expand all files Collapse all files
x/xnet/xnet_mdns_test.go
+12 -12
View File
@@ -114,7 +114,7 @@ func TestMDNS_QueryResponse(t *testing.T) {
var buf [carrierDataSize]byte
// Querier encapsulates query through full stack (Ethernet+IP+UDP+mDNS).
n, err := querierStack.Encapsulate(buf[:], -1, 0)
n, err := querierStack.EgressEthernet(buf[:])
if err != nil || n == 0 {
t.Fatal("querier encapsulate:", err, n)
}
@@ -135,13 +135,13 @@ func TestMDNS_QueryResponse(t *testing.T) {
}
// Responder demuxes the query (multicast MAC+IP accepted via AcceptMulticast).
err = responderStack.Demux(buf[:n], 0)
err = responderStack.IngressEthernet(buf[:n])
if err != nil {
t.Fatal("responder demux:", err)
}
// Responder encapsulates response.
n, err = responderStack.Encapsulate(buf[:], -1, 0)
n, err = responderStack.EgressEthernet(buf[:])
if err != nil || n == 0 {
t.Fatal("responder encapsulate:", err, n)
}
@@ -165,7 +165,7 @@ func TestMDNS_QueryResponse(t *testing.T) {
}
// Querier demuxes response.
err = querierStack.Demux(buf[:n], 0)
err = querierStack.IngressEthernet(buf[:n])
if err != nil {
t.Fatal("querier demux:", err)
}
@@ -310,25 +310,25 @@ func mdnsQueryRespond(t *testing.T, querier, responder *StackAsync, buf []byte)
t.Helper()
// Querier encapsulates query.
n, err := querier.Encapsulate(buf, -1, 0)
n, err := querier.EgressEthernet(buf)
if err != nil || n == 0 {
t.Fatal("querier encapsulate:", err, n)
}
// Responder demuxes multicast query directly.
err = responder.Demux(buf[:n], 0)
err = responder.IngressEthernet(buf[:n])
if err != nil {
t.Fatal("responder demux:", err)
}
// Responder encapsulates response.
n, err = responder.Encapsulate(buf, -1, 0)
n, err = responder.EgressEthernet(buf)
if err != nil || n == 0 {
t.Fatal("responder encapsulate:", err, n)
}
// Querier demuxes multicast response.
err = querier.Demux(buf[:n], 0)
err = querier.IngressEthernet(buf[:n])
if err != nil {
t.Fatal("querier demux:", err)
}
@@ -382,7 +382,7 @@ func TestMDNS_RealWorldQueries(t *testing.T) {
var buf [MTU + ethernet.MaxOverheadSize]byte
checkNoData := func(msg string) {
t.Helper()
n, err := responderStack.Encapsulate(buf[:], -1, 0)
n, err := responderStack.EgressEthernet(buf[:])
if err != nil {
t.Fatal(err)
} else if n != 0 {
@@ -434,18 +434,18 @@ func TestMDNS_RealWorldQueries(t *testing.T) {
ifrm.CRCWriteUDPPseudo(&crc, ufrm.Length())
got := crc.PayloadSum16(ifrm.Payload())
ufrm.SetCRC(got)
err := responderStack.Demux(buf[:14+20+8+msg.Len()], 0)
err := responderStack.IngressEthernet(buf[:14+20+8+msg.Len()])
if err != nil {
t.Fatal(err)
}
}
n, err := responderStack.Encapsulate(buf[:], -1, 0)
n, err := responderStack.EgressEthernet(buf[:])
if err != nil {
t.Fatal(err)
} else if n < 14+20+8+dns.SizeHeader {
t.Error("expected response", n)
}
n, err = responderStack.Encapsulate(buf[:], -1, 0)
n, err = responderStack.EgressEthernet(buf[:])
if err != nil {
t.Fatal(err)
} else if n != 0 {