SDCORE-76 : SMF changes to support UPF allocating UE address (#15)

Author: UpadhyayaAnkur

pfcpType/UPFunctionFeatures.go

@@ -25,18 +25,62 @@ const (
 	UpFunctionFeaturesQuoac uint16 = 1 << 11
 	UpFunctionFeaturesTrace uint16 = 1 << 12
 	UpFunctionFeaturesFrrt  uint16 = 1 << 13
+	UpFunctionFeaturesPfde  uint16 = 1 << 14
+	UpFunctionFeaturesEpfar uint16 = 1 << 15
+)
+
+//Supported Feature-1
+const (
+	UpFunctionFeatures1Dprda uint16 = 1
+	UpFunctionFeatures1Adpdp uint16 = 1 << 1
+	UpFunctionFeatures1Ueip  uint16 = 1 << 2
+	UpFunctionFeatures1Sset  uint16 = 1 << 3
+	UpFunctionFeatures1Mnop  uint16 = 1 << 4
+	UpFunctionFeatures1Mte   uint16 = 1 << 5
+	UpFunctionFeatures1Bundl uint16 = 1 << 6
+	UpFunctionFeatures1Gcom  uint16 = 1 << 7
+	UpFunctionFeatures1Mpas  uint16 = 1 << 8
+	UpFunctionFeatures1Rttl  uint16 = 1 << 9
+	UpFunctionFeatures1Vtime uint16 = 1 << 10
+	UpFunctionFeatures1Norp  uint16 = 1 << 11
+	UpFunctionFeatures1Iptv  uint16 = 1 << 12
+	UpFunctionFeatures1Ip6pl uint16 = 1 << 13
+	UpFunctionFeatures1Tscu  uint16 = 1 << 14
+	UpFunctionFeatures1Mptcp uint16 = 1 << 15
+)
+
+//Supported Feature-2
+const (
+	UpFunctionFeatures2Atsssll uint16 = 1
+	UpFunctionFeatures2Qfqm    uint16 = 1 << 1
+	UpFunctionFeatures2Gpqm    uint16 = 1 << 2
+	UpFunctionFeatures2Mtedt   uint16 = 1 << 3
+	UpFunctionFeatures2Ciot    uint16 = 1 << 4
+	UpFunctionFeatures2Ethar   uint16 = 1 << 5
+	UpFunctionFeatures2Ddds    uint16 = 1 << 6
+	UpFunctionFeatures2Rds     uint16 = 1 << 7
+	UpFunctionFeatures2Rttwp   uint16 = 1 << 8
 )
 
 type UPFunctionFeatures struct {
 	SupportedFeatures uint16
+	SupportedFeatures1 uint16
+	SupportedFeatures2 uint16
 }
 
 func (u *UPFunctionFeatures) MarshalBinary() (data []byte, err error) {
 	var idx uint16 = 0
 	// Octet 5 to 6
-	data = make([]byte, 2)
+	data = make([]byte, 6)
 	binary.LittleEndian.PutUint16(data[idx:], u.SupportedFeatures)
 
+	// Octet 7 to 8 : Additional Supported-Features 1
+	idx = 2
+	binary.LittleEndian.PutUint16(data[idx:], u.SupportedFeatures1)
+
+	/// Octet 9 to 10 : Additional Supported-Features 2
+	idx = 4
+	binary.LittleEndian.PutUint16(data[idx:], u.SupportedFeatures2)
 	return data, nil
 }
 
@@ -48,6 +92,23 @@ func (u *UPFunctionFeatures) UnmarshalBinary(data []byte) error {
 	if length < idx+2 {
 		return fmt.Errorf("Inadequate TLV length: %d", length)
 	}
-	u.SupportedFeatures = binary.LittleEndian.Uint16(data[idx : idx+2])
+	if length >= 2 {
+		u.SupportedFeatures = binary.LittleEndian.Uint16(data[idx : idx+2])
+		return nil
+	}
+
+	if length >= 4 {
+		//Additional Supported-Features 1
+		idx += 2
+		u.SupportedFeatures1 = binary.LittleEndian.Uint16(data[idx : idx+2])
+		return nil
+	}
+
+	if length == 6 {
+		//Additional Supported-Features 2
+		idx += 2
+		u.SupportedFeatures2 = binary.LittleEndian.Uint16(data[idx : idx+2])
+	}
 	return nil
 }
+