go-tcap
Simple TCAP implementation in Golang
Package tcap provides simple and painless handling of TCAP(Transaction Capabilities Application Part) in SS7/SIGTRAN protocol stack, implemented in the Go Programming Language.
Though TCAP is ASN.1-based protocol, this implementation does not use any ASN.1 parser. That makes this implementation flexible enough to create arbitrary payload with any combinations, which is useful for testing.
Disclaimer
This is still an experimental project, and currently in its very early stage of development. Any part of implementations(including exported APIs) may be changed before released as v1.0.0.
Getting started
The following package should be installed before getting started.
go get -u github.com/pascaldekloe/goe
go get -u github.com/pkg/errors
If you use Go 1.11+, you can also use Go Modules.
GO111MODULE=on go [test | build | run | etc...]
Supported Features
Transaction Portion
Message Types
| Message type | Supported? |
|---|---|
| Unidirectional | |
| Begin | Yes |
| End | Yes |
| Continue | Yes |
| Abort | Yes |
Fields
| Tag | Supported? |
|---|---|
| Originating Transaction ID | Yes |
| Destination Transaction ID | Yes |
| P-Abort Cause | Yes |
Component Portion
Component types
| Component type | Supported? |
|---|---|
| Invoke | Yes |
| Return Result (Last) | Yes |
| Return Result (Not Last) | Yes |
| Return Error | Yes |
| Reject | Yes |
Dialogue Portion
Dialogue types
| Dialogue type | Supported? |
|---|---|
| Dialogue Request (AARQ-apdu) | Yes |
| Dialogue Response (AARE-apdu) | Yes |
| Dialogue Abort (ABRT-apdu) | Yes |
| Unidirectional Dialogue (AUDT-apdu) |
Elements
| Tag | Type | Supported? |
|---|---|---|
| Object Identifier | Structured | Yes |
| Single-ASN.1-type | Structured | Yes |
| Dialogue PDU | Structured | Yes |
| Object Identifier | Unstructured | |
| Single-ASN.1-type | Unstructured | |
| Unidirectional Dialogue PDU | Unstructured |
Author(s)
Yoshiyuki Kurauchi (Website / Twitter)
I'm always open to welcome co-authors! Please feel free to talk to me.