Diameter Packet Constructor

It's pure C++11 library for constructing and parsing binary Diameter packets. This library uses ByteArray submodule.

Build

0. Clone repo: git clone https://github.com/Megaxela/DiameterPacketConstructor
1. Go into repo: cd DiameterPacketConstructor
2. Init and update submodule: git submodule init && git submodule update
3. Create build folder: mkdir build
4. Go into build folder: cd build
5. Generate build file for your compiler: cmake .. (or cmake -DDIAMETER_BUILD_TESTS .. if you want to build tests)
6. Build library: cmake --build .

Example

Constructing sample DPR packet

auto packet = Diameter::Packet()
        .setHeader(
            Diameter::Packet::Header()
                // It's 1 by default. But for explicity i redefined it. 
                .setVersion(1)
                // Setting that it's request 
                .setCommandFlags(
                    Diameter::Packet::Header::Flags()
                        .setFlag(Diameter::Packet::Header::Flags::Bits::Request, true)
                )
                .setCommandCode(282)
                .setApplicationId(0)
                .setHBHIdentifier(0x7ddf9367)
                .setETEIdentifier(0xc15ecb12)
        )
        .addAVP( // Origin-Host AVP
            Diameter::AVP()
                .setHeader(
                    Diameter::AVP::Header()
                        .setAVPCode(264)
                        .setFlags(
                            Diameter::AVP::Header::Flags()
                                .setFlag(Diameter::AVP::Header::Flags::Bits::Mandatory, true)
                        )
                )
                .setData(
                    Diameter::AVP::Data()
                        .setOctetString(
                            ByteArray::fromASCII("originHostname")
                        )
                )
                // Updating AVP length field, according to header and data value.
                .updateLength()
        )
        .addAVP( // Disconnection-Cause
            Diameter::AVP()
                .setHeader(
                    Diameter::AVP::Header()
                        .setAVPCode(273)
                        .setFlags(
                            Diameter::AVP::Header::Flags()
                                .setFlag(Diameter::AVP::Header::Flags::Bits::Mandatory, true)
                        )
                )
                .setData(
                    Diameter::AVP::Data()
                        .setUnsigned32(0) // REBOOT
                )
                // Updating AVP length field, according to header and data value.
                .updateLength()
        )
        .addAVP( // Origin-Realm
            Diameter::AVP()
                .setHeader(
                    Diameter::AVP::Header()
                        .setAVPCode(296)
                        .setFlags(
                            Diameter::AVP::Header::Flags()
                                .setFlag(Diameter::AVP::Header::Flags::Bits::Mandatory, true)
                        )
                )
                .setData(
                    Diameter::AVP::Data()
                        .setOctetString(
                            ByteArray::fromASCII("originRealm")
                        )
                )
                // Updating AVP length field, according to header and data value.
                .updateLength()
        )
        // Updating Message length field, accordign to added AVPs
        .updateLength()
        // Serializing Packet to ByteArray.
        .deploy();

Parsing binary packet

ByteArray binaryPacket; // Some binary

Diameter::Packet packet;

try
{
    packet = Diameter::Packet(binaryPacket);
}
catch (std::invalid_argument& e)
{
    std::cerr << "Parsing error: " << e.what() << std::endl;
}

LICENSE

Library is licensed under the MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.