OpenWISP Firmware (shortly OWF) is an openwrt package that provides a daemon that periodically retrieves the configuration of the following components from an OpenWISP Manager (OWM) server:
- wifi (currently only for madwifi-ng and ath9k)
- layer 2 traffic shaping
- openvpn (layer 2, tap)
OpenWISP Firmware also provides a web GUI for: - configuring basic network parameters - configuring basic OpenWISP server settings - performing a set of test to spot and resolve most common problems that may prevent Open WISP firmware to work correctly
See the OWM wiki for more details.
In order to have a fully working OWF you have to compile it yourself.
OWF package supports an overlay configuration file that you should provide at compile time, this overlay allows you to include custom configuration. See below for more information on this file.
We strongly suggest to build OpenWRT on a GNU/Linux environment, you can find other pre-requisites here: http://wiki.openwrt.org/doc/howto/build.
If you have a properly configured machine follow this steps inside the OpenWRT root directory:
cp feeds.conf.default feeds.conf echo "src-git openwisp https://github.com/openwisp/OpenWISP-Firmware.git" >> feeds.conf ./scripts/feeds update ./scripts/feeds install openwisp-fw make menuconfig (choice your arch and include openwisp-fw package and submodule if appropriate) export OPENWISP_CONF="http://myserver.com/config_file_example.tar.gz" (see below) make
The full version of OWF will support UMTS and mesh capability, but will require better hardware and much more space on flash/disk, we recommends an appropriate hardware under this condition.
Our firmware should idealy run on every OpenWRT-complatible devices, but we have tested mainly atheros, x86, ar71xx platforms.
Stable version features:
- MESH Support
- 3G support
- wifi support (Both drivers works alone or togheter)
- interface failover script
Overlay Configuration File¶
The overlay configuration file is a tar.gz file that is extracted inside the target rootfs and can potentially overwrite any other config file or add new files inside filesytem.
Here I will provide a structural example of the overlay configuration file that should be provided to be fully compliant with OWM and OWF v1.2:
etc ├── config │ └── owispmanager ├── openvpn │ ├── ca.crt │ ├── client.crt │ └── ta.key └── shadow
This is an exmaple of the contents of
config 'server' 'home' option 'address' 'my_OWM_server' option 'port' '' option 'status' 'configured' option 'inner_server' '' option 'inner_server_port' '' config 'server' 'local' option 'hide_server_page' '1' option 'setup_wpa_psk' 'owf_safemode_wpakey' option 'setup_wifi_dev' '' option 'setup_httpd_port' '' option 'setup_ssid' '' option 'setup_ip' '' option 'setup_netmask' '' option 'setup_range_ip_start' '' option 'setup_range_ip_end' '' option 'hide_umts_page' '1' option 'hide_mesh_page' '1' option 'hide_ethernet_page' '0'
etc/openvpn/ directory will contain the RSA certificates to establish a successfull connection with your own openvpn server (aka setup vpn) while
/etc/shadow will provide a default password for the root user, here the file content for password “pass”:
root:$1$SwrPpeIH$8MMk3YQiVXl5uQzRgTIvU/:16386:0:99999:7::: daemon:*:0:0:99999:7::: ftp:*:0:0:99999:7::: network:*:0:0:99999:7::: nobody:*:0:0:99999:7:::
The overlay configuration layer MUST be provided using the enviroment variable
OPENWISP_CONF it could be a local targz file,
a valid http url to download the targz or a local directory.
For and example of directory structure see tests/dummy_config and refer to .travis.yml to setup the correct build enviroment.
Beware: if you update your overlay configuration file please ensure to clean and recompile the openwisp package. This can be done using the following command inside openwrt build dir:
Developing the firmware¶
If you’d like to work locally on firmare improvement you should use a local OpenWisp Firmware repo clone and a local OpenWrt repo clone. In this configuration you should use the following commands for feed configuration:
echo "src-link openwisp /path/to/local/git/repo/" >> feeds.conf ./scripts/feeds update
Compile Openwrt for multiple architectures¶
Here follows an example script to compile OWF for different arch targets:
#!/bin/bash git clone git://git.openwrt.org/openwrt.git --depth 10 cd openwrt #configure feeds cp feeds.conf.default feeds.conf echo "src-git openwisp https://github.com/openwisp/openwrt-feed.git" >> feeds.conf ./scripts/feeds update ./scripts/feeds install openwisp-fw export OPENWISP_CONF="http://myserver.com/config_file_example.tar.gz" (see below) #config target for arch in ar71xx atheros x86; do echo "CONFIG_TARGET_$arch=y" > .config; echo "CONFIG_PACKAGE_openwisp-fw=y" >> .config make defconfig; make package/openwisp-fw/clean; make -j 4; done
Copyright (C) 2012-2015 OpenWISP.org
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.