This repository is no longer maintained. Issue reports and pull requests will not be attended.

Cellular Data Network Simulator

Cellular Data Network Simulator is dedicated WiFi network to monitor network usage and simulate network link conditions for mobile applications. It uses well established technologies: OpenWrt, tc, iptables and CloudShark.

Features

Easy to use web and mobile interface
Simulate: bandwidth, delay, loss, corruption, occasional loss of signal
Can capture the traffic and send it to CloudShark
Apply limits per-device
Works well in environment with multiple devices and multiple testers
Works well as virtual machine bridged with separate wireless network

Requirements

OpenWrt device running on Barrier Breaker - can be router or virtual machine
Two network interfaces - one for WAN and one for WIFI/LAN

Installation

The are a few simple steps to install Cellular Data Network Simulator:

Install cdns:
```
 opkg update
 opkg install http://polidea.github.io/Cellular-Data-Network-Simulator/cdns_0.5-3_all.ipk
```
Installation of Cellular Data Network Simulator replaces default Luci webpage. The Luci can be accessed using: http://ip-address/index-old.html
Configure:
```
 vim /etc/config/cdns
```
By default there are 5 profiles: Full, HSDPA, Edge, GPRS and Disabled.

In order to support packet capture uploads to Cloudshark, you must edit the cloudshark_api_token parameter. You must create an account at https://www.cloudshark.org and retrieve your API token from the Preferences / API Tokens drop-down menu.
Start the service:
```
 /etc/init.d/cdns enable
 /etc/init.d/cdns start
```
That simply enables and starts the service,
Start the uhttpd daemon:
```
 /etc/init.d/uhttpd enable
 /etc/init.d/uhttpd start
```
If you didn’t do it before you have to enable and start the uhttpd daemon.
Start using:

Simply open: http://ip-address/.

Uninstallation

    /etc/init.d/cdns stop
    opkg remove cdns

Compile yourself

Download sources:
```
 git clone <repo-path>
```
Build the package yourself:
```
 make
```
For more options view help:
```
 make help
```

License

   BSD 2-Clause License

FAQ

To fix problems with displaying web page execute from router's commandline:
```
 grep -lir "<html>" /tmp/testing/events*.cfg | xargs rm
```

Changelog

v.0.5-0: First public release (25.11.2013)
v.0.5-1: Bug fixing (12.02.2014)
v.0.5-2: Fixed Cloudshark URL and added CA bundle (25.03.2014)
v.0.5-3: Fixed #5 (18.09.2014)

Polidea / Cellular-Data-Network-Simulator