commit
4e785a0377
1 changed files with 76 additions and 0 deletions
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76sdb.go
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package main |
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import ( |
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"os" |
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"fmt" |
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"bytes" |
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"encoding/binary" |
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"io/ioutil" |
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) |
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type IridiumSDB struct { |
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ProtocolRevision byte |
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MessageLength uint16 |
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Message MOMessage |
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} |
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type MOMessage struct { |
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HeaderIEI byte |
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HeaderLength uint16 |
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CDRReference uint32 |
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IMEI [15]byte |
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Status byte |
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MOMSN uint16 |
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MTMSN uint16 |
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SessionTime uint32 |
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} |
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var SessionStatusString = []string{ |
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"The SBD session completed successfully.", |
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"The MO message transfer, if any, was successful. The MT message queued at the Iridium Gateway is too large to be transferred within a single SBD session.", |
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"The MO message transfer, if any, was successful. The reported location was determined to be of unacceptable quality. This value is only applicable to IMEIs using SBD protocol revision 1.", |
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"", // 3
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"", // 4
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"", // 5
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"", // 6
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"", // 7
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"", // 8
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"", // 9
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"The SBD session timed out before session completion.", |
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"", // 11
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"The MO message being transferred by the IMEI is too large to be transferred within a single SBD session.", |
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"An RF link loss occurred during the SBD session.", |
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"An IMEI protocol anomaly occurred during SBD session.", |
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"The IMEI is prohibited from accessing the Iridium Gateway."} |
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func main() { |
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if len(os.Args) < 2 { |
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fmt.Fprintf(os.Stderr, "required argument missing\n") |
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os.Exit(1) |
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} |
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rdt, err := ioutil.ReadFile(os.Args[1]) |
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if err != nil { |
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fmt.Fprintf(os.Stderr, "error reading %s: %s\n", os.Args[1], err.Error()) |
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os.Exit(1) |
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} |
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header := IridiumSDB{} |
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buf := bytes.NewBuffer(rdt) |
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err = binary.Read(buf, binary.BigEndian, &header) |
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if err != nil { |
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fmt.Fprintf(os.Stderr, "error parsing %s: %s\n", os.Args[1], err.Error()) |
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os.Exit(1) |
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} |
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fmt.Fprintf(os.Stdout, "Protocol Revision: %d\n", header.ProtocolRevision) |
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fmt.Fprintf(os.Stdout, "Message Length: %d\n", header.MessageLength) |
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fmt.Fprintf(os.Stdout, "MO Header IEI: %x\n", header.Message.HeaderIEI) |
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fmt.Fprintf(os.Stdout, "MO Header Length: %d\n", header.Message.HeaderLength) |
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fmt.Fprintf(os.Stdout, "CDR Reference: %d\n", header.Message.CDRReference) |
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fmt.Fprintf(os.Stdout, "IMEI: %s\n", string(header.Message.IMEI[:])) |
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fmt.Fprintf(os.Stdout, "Status: %s (%d)\n", SessionStatusString[header.Message.Status], header.Message.Status) |
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fmt.Fprintf(os.Stdout, "MOMSN: %d\n", header.Message.MOMSN) |
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fmt.Fprintf(os.Stdout, "MTMSN: %d\n", header.Message.MTMSN) |
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fmt.Fprintf(os.Stdout, "Session Time: %d\n", header.Message.SessionTime) |
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} |
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