[diameter] add a few dictionaries

[sebastiw]

Tiny PR to add dictionaries from 3GPP.

It took a couple of weeks but now most 3GPP interfaces are added along with IETF/ETSI/ITU-T definitions 🥳 🍾

came about a bug in diameter type checker at the same time
erlang/otp#6789

[alishir]

Hi @sebastiw,
Could you please guide me on how to use these directories in an Elixir project? Below is a snippet of my client configuration.

  defp init_diameter() do
    svc_opts = [
      {:"Origin-Host", "client.example.com"},
      {:"Origin-Realm", "example.com"},
      {:"Origin-State-Id", :diameter.origin_state_id()},
      {:"Vendor-Id", 0},
      {:"Product-Name", "Test diameter client"},
      {:"Auth-Application-Id", [4]},
      {:restrict_connections, false},
      {:strict_mbit, false},
      {:decode_format, :map},
      {:string_decode, false},
      {:application,
       [
         {:alias, :common},
         {:dictionary, @which_path?},
         {:module, Ocs.DiaCallback},
         {:call_mutates_state, false},
         {:answer_errors, :callback}
       ]}
    ]

    :ok = :diameter.start_service(@svc_name, svc_opts)

    transport_opts = [
      {:transport_module, :diameter_sctp},
      {:transport_config, [{:reuseaddr, true}, {:raddr, {127, 0, 0, 1}}, {:rport, 3868}]}
    ]

    {:ok, _} = :diameter.add_transport(@svc_name, {:connect, transport_opts})
  end

[sebastiw]

So when the dictionaries have been compiled (e.g. by erlc dia_3gpp_ts_32299_GyRo.dia, or by running rebar3 compile in this library) one should be able to add the dictionary name to the applications-field in the settings as {:dictionary, :dia_3gpp_ts_32299_GyRo}

I can take a better look later today

[alishir]

Thank you! I added otc to the dependencies. However, when I ran mix deps.get, I received the following messages:

Compile ASN1s: false
Compile DIA: false

[alishir]

Hi @sebastiw,
I discovered that the diameter-compiler plugin was commented out in the rebar.conf file. I added the latest version and submitted a pull request.

[sebastiw]

Could you open a issue on these topics please, so we can track it better.

I think there is/was a env variable you can set to make dictionaries compile, and those outputs are based on that (but maybe I removed the rebar.config.script)

I also forgot about this pr adding prefixes for the dicts to not have cyclic dependencies
#31