scion-apps

scion-apps

This repo contains demo applications using the SCION protocol.

The applications are written in Go, with some supporting code in Python. A SCION Internet connection (for instance via SCIONLab) is required to run these applications.

More information on SCION, and tutorials on how to set up SCION and SCIONLab.

Installation:

Download and install our Debian packages:

sudo apt-get install apt-transport-https
echo "deb [trusted=yes] https://packages.netsec.inf.ethz.ch/debian all main" | sudo tee /etc/apt/sources.list.d/scionlab.list
sudo apt-get update
sudo apt install scion-apps-*

Build:

1. Install go 1.13

   See e.g. https://github.com/golang/go/wiki/Ubuntu

2. Install dependencies

   Building the SSH tool requires libpam0g-dev:

   sudo apt-get install -y libpam0g-dev
   

3. Clone this repository

   git clone https://github.com/netsec-ethz/scion-apps.git
   

   Note: because this is using go modules, there is no need to put this under $GOPATH

4. Install golangci-lint, which is used to run format checks and various linter steps

   make setup_lint
   

5. Run make build all projects (and run linters). Run make -j to use multiple jobs to build.

6. Run make test to

7. Run make install to build all projects and install into $GOPATH/bin

Running:

All of these applications require a running SCION endhost stack, i.e. a running SCION dispatcher and SCION daemon. Please refer to the SCIONLab tutorials to get started.

Environment

The dispatcher and sciond sockets are assumed to be at default locations, but this can be overriden using environment variables:

	SCION_DISPATCHER_SOCKET: /run/shm/dispatcher/default.sock
	SCION_DAEMON_ADDRESS: 127.0.0.1:30255

This is convenient for the normal use case of running a the endhost stack for a single SCION AS. When running multiple local ASes, e.g. during development, the address of the sciond corresponding to the desired AS needs to be specified in the SCION_DAEMON_ADDRESS environment variable. In this case, the different sciond addresses can be found in their corresponding sd.toml configuration files in the gen/ISDx/ASy/endhost directory, or summarized in the file gen/sciond_addresses.json.

Hostnames

Hostnames are resolved by scanning the /etc/hosts file and by a RAINS lookup.

Hosts can be added to /etc/hosts by adding lines like this:

# The following lines are SCION hosts
17-ffaa:1:10,[10.0.8.100]	server1
18-ffaa:0:11,[10.0.8.120]	server2

The RAINS resolver address can be configured in /etc/scion/rains.cfg. This configuration file needs to contain the SCION address of the RAINS resolver, in the form <ISD>-<AS>,[<IP>].

bat

bat is a CLI cURL-like tool for testing, debugging, and generally interacting with HTTP servers over SCION/QUIC. Documentation of the code is available in the README.md

Installation and usage information is available on the SCION Tutorials web page for bat.

camerapp

Camerapp contains image fetcher and server applications, using the SCION network. Documentation of the code is available in the README.md

Installation and usage information is available on the SCION Tutorials web page for camerapp.

sensorapp

Sensorapp contains fetcher and server applications for sensor readings, using the SCION network.

Installation and usage information is available on the SCION Tutorials web page for sensorapp.

bwtester

The bandwidth testing application bwtester enables a variety of bandwidth tests on the SCION network.

Documentation of the code and protocol are described in the bwtester README.

Installation and usage information is available on the SCION Tutorials web page for bwtester.

webapp

Webapp is a Go application that will serve up a static web portal to make it easy to experiment with SCIONLab test apps on a virtual machine.

Installation and usage information is available on the SCION Tutorials web page for webapp.