TPDU (3GPP TS23.040), RPDU and CPDU (3GPP TS24.011) message encoding implementation by Golang.
SMS is a text messaging service component of mobile device systems.
This project is still WIP.
go get -u github.com/fkgi/teldata
go get -u github.com/fkgi/sms
Encode TP-DELIVER as below.
p := sms.Deliver{
MMS: true,
LP: false,
SRI: false,
RP: false,
OA: sms.Address{TON: 0, NPI: 0},
PID: 0,
DCS: &sms.GeneralDataCoding{
AutoDelete: false,
Compressed: false,
MsgClass: sms.NoMessageClass,
MsgCharset: sms.CharsetUCS2},
SCTS: time.Date(
2011, time.March, 22, 14, 25, 40, 0,
time.FixedZone("unknown", 9*60*60)),
UD: sms.UserData{Text: "あいうえお"}}
p.UD.UDH = append(p.UD.UDH, sms.ConcatenatedSM{
RefNum: 0x84, MaxNum: 0x0a, SeqNum: 0x01})
p.OA.Addr, _ = teldata.ParseTBCD("1234")
b := p.MarshalTP()
fmt.Printf("% x", b)Decode TP-DELIVER as below.
bytedata := []byte{
0x40, 0x04, 0x80, 0x21, 0x43, 0x00, 0x08, 0x11,
0x30, 0x22, 0x41, 0x52, 0x04, 0x63, 0x10, 0x05,
0x00, 0x03, 0x87, 0x02, 0x01, 0x30, 0x42, 0x30,
0x44, 0x30, 0x46, 0x30, 0x48, 0x30, 0x4a}
p, e := sms.UnmarshalTPMT(bytedata)
if e != nil {
fmt.Printf("encode failed: %s", e)
}
fmt.Println(p.String())Refer each _test.go files to see each message decoding/encoding.