Fuzzing add seed, new target and remove bloat

Signed-off-by: Arjun Singh <ajsinghyadav00@gmail.com>

fuzz_test.go

@@ -0,0 +1,14 @@
+// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
+// SPDX-License-Identifier: MIT
+package dtls
+
+import (
+	"testing"
+)
+
+func FuzzUnmarshalBinary(f *testing.F) {
+	f.Fuzz(func(t *testing.T, data []byte) {
+		deserialized := &State{}
+		_ = deserialized.UnmarshalBinary(data)
+	})
+}

pkg/protocol/extension/fuzz_test.go

@@ -0,0 +1,19 @@
+// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
+// SPDX-License-Identifier: MIT
+
+package extension
+
+import "testing"
+
+func FuzzUnmarshal(f *testing.F) {
+	f.Add([]byte{0x00})
+	f.Add([]byte{1, 6, 8, 3, 88, 12, 2, 47})
+	f.Add([]byte{0x0, 0xa, 0x0, 0x4, 0x0, 0x2, 0x0, 0x1d})
+	f.Add([]byte{0x00, 0x0b, 0x00, 0x02, 0x01, 0x00})
+	f.Add([]byte{0x00, 0x0d, 0x00, 0x08, 0x00, 0x06, 0x04, 0x03, 0x05, 0x03, 0x06, 0x03})
+	f.Add([]byte{0x00, 0x0e, 0x00, 0x05, 0x00, 0x02, 0x00, 0x01, 0x00})
+
+	f.Fuzz(func(t *testing.T, data []byte) {
+		_, _ = Unmarshal(data)
+	})
+}

pkg/protocol/handshake/fuzz_test.go

@@ -10,15 +10,6 @@ import (
 func FuzzDtlsHandshake(f *testing.F) {
 	f.Fuzz(func(t *testing.T, data []byte) {
 		h := &Handshake{}
-		if err := h.Unmarshal(data); err != nil {
-			return
-		}
-		buf, err := h.Marshal()
-		if err != nil {
-			t.Fatal(err)
-		}
-		if len(buf) == 0 {
-			t.Fatal("Zero buff")
-		}
+		_ = h.Unmarshal(data)
 	})
 }

pkg/protocol/handshake/testdata/fuzz/FuzzDtlsHandshake/rawFinished.raw

@@ -0,0 +1,2 @@
+

	
+

pkg/protocol/recordlayer/fuzz_test.go

@@ -4,39 +4,33 @@
 package recordlayer
 
 import (
-	"reflect"
 	"testing"
 )
 
-func headerMismatch(a, b Header) bool {
-	// Ignoring content length for now.
-	a.ContentLen = b.ContentLen
-	return !reflect.DeepEqual(a, b)
-}
-
 func FuzzRecordLayer(f *testing.F) {
+	Data := []byte{
+		0x14, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x01, 0x01,
+	}
+	f.Add(Data)
+
 	f.Fuzz(func(t *testing.T, data []byte) {
 		var r RecordLayer
-		if err := r.Unmarshal(data); err != nil {
-			return
-		}
-
-		buf, err := r.Marshal()
-		if err != nil {
-			return
-		}
-
-		if len(buf) == 0 {
-			t.Fatal("Zero buff")
-		}
+		_ = r.Unmarshal(data)
+	})
+}
 
-		var nr RecordLayer
-		if err = nr.Unmarshal(data); err != nil {
-			t.Fatal(err)
-		}
+func FuzzUnpackDatagram(f *testing.F) {
+	Datasingle := []byte{
+		0x14, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x01, 0x01,
+	}
+	Datamulti := []byte{
+		0x14, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x01, 0x01,
+		0x14, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x01, 0x01,
+	}
+	f.Add(Datasingle)
+	f.Add(Datamulti)
 
-		if headerMismatch(nr.Header, r.Header) {
-			t.Fatalf("Header mismatch: %+v != %+v", nr.Header, r.Header)
-		}
+	f.Fuzz(func(t *testing.T, data []byte) {
+		_, _ = UnpackDatagram(data)
 	})
 }

testdata/fuzz/FuzzUnmarshalBinary/TestResumeServer.raw

@@ -0,0 +1 @@
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