TUN-528: Move cloudflared into a separate repo

vendor/github.com/miekg/dns/tsig_test.go

@@ -0,0 +1,52 @@
+package dns
+
+import (
+	"encoding/binary"
+	"testing"
+	"time"
+)
+
+func newTsig(algo string) *Msg {
+	m := new(Msg)
+	m.SetQuestion("example.org.", TypeA)
+	m.SetTsig("example.", algo, 300, time.Now().Unix())
+	return m
+}
+
+func TestTsig(t *testing.T) {
+	m := newTsig(HmacMD5)
+	buf, _, err := TsigGenerate(m, "pRZgBrBvI4NAHZYhxmhs/Q==", "", false)
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = TsigVerify(buf, "pRZgBrBvI4NAHZYhxmhs/Q==", "", false)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// TSIG accounts for ID substitution. This means if the message ID is
+	// changed by a forwarder, we should still be able to verify the TSIG.
+	m = newTsig(HmacMD5)
+	buf, _, err = TsigGenerate(m, "pRZgBrBvI4NAHZYhxmhs/Q==", "", false)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	binary.BigEndian.PutUint16(buf[0:2], uint16(42))
+	err = TsigVerify(buf, "pRZgBrBvI4NAHZYhxmhs/Q==", "", false)
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestTsigCase(t *testing.T) {
+	m := newTsig("HmAc-mD5.sig-ALg.rEg.int.") // HmacMD5
+	buf, _, err := TsigGenerate(m, "pRZgBrBvI4NAHZYhxmhs/Q==", "", false)
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = TsigVerify(buf, "pRZgBrBvI4NAHZYhxmhs/Q==", "", false)
+	if err != nil {
+		t.Fatal(err)
+	}
+}