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major ARP Handler refactor; DNS improvements; bridge example rework

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This commit is contained in:
soypat
2025-07-09 22:49:13 -03:00
parent 70731c2ffa
commit a257becf15
10 changed files with 223 additions and 127 deletions
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arp/handler_test.go
+9 -9
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@@ -34,13 +34,13 @@ func TestHandler(t *testing.T) {
t.Fatal(err)
}
var buf, discard [64]byte
n, err := c1.Send(buf[:])
n, err := c1.Encapsulate(buf[:], 0)
if err != nil {
t.Fatal("error on should be nop send:", err)
} else if n > 0 {
t.Fatal("should not send if no query")
}
n, err = c2.Send(buf[:])
n, err = c2.Encapsulate(buf[:], 0)
if err != nil {
t.Fatal("error on should be nop send:", err)
} else if n > 0 {
@@ -54,33 +54,33 @@ func TestHandler(t *testing.T) {
if err != nil {
t.Fatal(err)
}
n, err = c1.Send(buf[:]) // Send Request.
n, err = c1.Encapsulate(buf[:], 0) // Send Request.
if err != nil {
t.Fatal(err)
} else if n == 0 {
t.Fatal("expected send of data after first query")
}
validateARP(t, buf[:])
err = c2.Recv(buf[:n]) // Receive request.
err = c2.Demux(buf[:n], 0) // Receive request.
if err != nil {
t.Fatal(err)
}
n, err = c2.Send(buf[:]) // Send response.
n, err = c2.Encapsulate(buf[:], 0) // Send response.
if err != nil {
t.Fatal(err)
} else if n == 0 {
t.Fatal("got no response to request")
}
validateARP(t, buf[:])
n, err = c2.Send(discard[:]) // Double tap check, should send nothing.
n, err = c2.Encapsulate(discard[:], 0) // Double tap check, should send nothing.
if err != nil {
t.Fatal("double tap send error:", err)
} else if n > 0 {
t.Fatal("wanted no data sent after response sent")
}
err = c1.Recv(buf[:]) // Receive response.
err = c1.Demux(buf[:], 0) // Receive response.
if err != nil {
t.Fatal(err)
}
@@ -90,13 +90,13 @@ func TestHandler(t *testing.T) {
} else if !bytes.Equal(hwaddr, expectHWAddr) {
log.Fatalf("expected to get hwaddr %x!=%x", hwaddr, expectHWAddr)
}
n, err = c1.Send(buf[:])
n, err = c1.Encapsulate(buf[:], 0)
if err != nil {
t.Fatal(err)
} else if n > 0 {
t.Fatal("expected no data")
}
n, err = c2.Send(buf[:])
n, err = c2.Encapsulate(buf[:], 0)
if err != nil {
t.Fatal(err)
} else if n > 0 {