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https://github.com/nasa/DTNME


https://github.com/nasa/DTNME

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README 

        
DTN Marshal Enterprise Implementation

============================



This is the Delay Tolerant Networking reference implementation managed 

by Marshal Space Flight Center. Please bear with us as we get this repo

up and running. We have worked hard to clean up the code to remove 

unused or half finsihed classes from the original DTN2 implementation

in an attempt to stabilize the code. It is expected that with v0.1

there will be some things that we missed, but should be caught by the

time we reach v1.0. See the file STATUS for an overview of the state

of the code, particularly in reference to the various internet drafts

and (someday) RFCs that describe the bundling protocol. Also, the file

RELEASE-NOTES describes major changes in each release. This implementation

is based on DTN2, but also includes all the changes that Marshal Space

Flight Center has made over the years. This is the beta release of version 

DTNME v1.2.0. As such it has only been through internal development testing 

and has not received any independent verification testing. This version

includes updated support appplications, support for BPv6 and BPv7(including 

BIBE, mTCPCL, and TCPCLv4), and fixes to improve the stability of the BPv6 

code. Any unfinished or unused code from DTN2 has been fully removed at 

this point. This code includes the Bundle Architectural Restaging Daemon (BARD)

which is designed to offload bundles to an external storage mechanism

to reduce the processing overhead caused by storing a large number of bundles

on the main node. Due to the nature of this function it also provides a

convenient method to inject and remove bundles from the DTN Network

effectively allowing BARD to act as an air gap covergence layer.



Compilation / Installation Instructions

---------------------------------------



Dependencies

libdb-dev g++ automake autotools-dev tk tk-dev tcl tcl-dev libboost-all-dev



Building



./step_1_make_gcc_dtnme.sh or step_1_make_clang_dtnme.sh - By default use gcc

    

    This script will use gcc or clang to compile dtnme according to the default configuration

  

./step_2_install_dtnme.sh

    

    This script copies all of the binaries and places them in a defined directory structure

    

./step_3_clean_dtnme.sh



    This script removes all build files and links so the source can be copied over to a different machine



Note that by default, the configure script will also run configure

inside the oasys/ subdirectory.



Note that if you need to make changes to the configure.ac script or

one of the helper scripts in aclocal/*.ac, run make_dtnme.sh to

recreate configure and then check if both your changes as well as the

newly generated configure script are ready.



Reporting Bugs / Other Help

---------------------------

A bug tracking system is in place. Please direct bug reports to 

https://github.com/nasa/DTNME.



DTNME Directory Structure

------------------------



applib/			application interface library and ipc layer

apps/		        dtn support applications

daemon/			dtn router daemon sources

ehsrouter/              specialized external router used MSFC

servlib/		dtn router internals

|-- bundling		bundle management and forwarding logic

|-- cmd			tcl based command interface

|-- contacts

|-- conv_layers		convergence layers

|-- naming		endpoint identifier schemes

|-- reg			local registrations

|-- routing		bundle routing logic

|-- storage		persistent storage management

third_party/            holds all dependent libraries



External Requirements

---------------------

gcc/g++



Optional External Packages

--------------------------

WolfSSL