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Install on OpenWRT X86_64

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Raizo62 edited this page Sep 6, 2021 · 39 revisions

Build libnl for OpenWRT

On cross-compiler

  • Install necessary packages for libnl

    sudo apt install bison flex
sudo apt install gcc make

  • Create the working folder ~/OpenWRT

    mkdir ~/OpenWRT
cd ~/OpenWRT

Download the SDK of OpenWRT

Download the code of libnl

  • The file is here : https://github.com/thom311/libnl

  • Download it

    wget https://github.com/thom311/libnl/releases/download/libnl3_5_0/libnl-3.5.0.tar.gz

  • Uncompress and rename it to ~/OpenWRT/libnlsrc

    tar xvf libnl-3.5.0.tar.gz
mv libnl-3.5.0 libnlsrc

Compilation of libnl for OpenWRT

  • Go to the folder ~/OpenWRT/libnlsrc

    cd ~/OpenWRT/libnlsrc

  • Update PATH

    PATH=$PATH:"~/OpenWRT/SDK/staging_dir/toolchain-x86_64_gcc-7.5.0_musl/x86_64-openwrt-linux-musl/bin"
export PATH

STAGING_DIR="~/OpenWRT/SDK/staging_dir/toolchain-x86_64_gcc-7.5.0_musl/x86_64-openwrt-linux-musl/"
export STAGING_DIR

  • Build

    ./configure --build=x86_64-unknown-linux-gnu  --host=x86_64-openwrt-linux-musl LDFLAGS="-static"
make

  • Save necessary files in ~/OpenWRT/libnl

    mkdir ~/OpenWRT/libnl
cp -R ~/OpenWRT/libnlsrc/include ~/OpenWRT/libnl
cp -R ~/OpenWRT/libnlsrc/lib/.libs ~/OpenWRT/libnl/libs

Build vwifi for OpenWRT

On OpenWRT

Necessary files

  • Get the folder ~/OpenWRT/libnl from the cross-compiler and save it in /root/libnl of OpenWRT

  • Get the sources of vwifi and save it in /root/vwifi of OpenWRT

Necessary to build

  • Packages required to compile vwifi

    opkg update
opkg install gcc make

  • For libpthread

    ar -rc /usr/lib/libpthread.a

Build

  • Go to the folder of vwifi : /root/vwifi

    cd /root/vwifi

  • Edit the file "Makefile" to modify the values of NETLINK_FLAGS and NETLINK_LIBS

    sed -i 's#^NETLINK_FLAGS.*#NETLINK_FLAGS=-I/root/libnl/include#g' /root/vwifi/Makefile
sed -i 's#^NETLINK_LIBS.*#NETLINK_LIBS=-L/root/libnl/libs -lnl-genl-3 -lnl-3#g' /root/vwifi/Makefile
    • NETLINK_FLAGS = -I/root/libnl/include
    • NETLINK_LIBS = -L/root/libnl/libs -lnl-genl-3 -lnl-3

  • If you will not build vsock for OpenWRT, you can disable it in vwifi-client :

    sed -i 's$^#define ENABLE_VHOST$//#define ENABLE_VHOST$g' /root/vwifi/src/config.h

  • Build vwifi-client

    make directories
make vwifi-client

Use vwifi on OpenWRT

Prerequisites

  • Package required to use : mac80211-hwsim

    opkg install kmod-mac80211-hwsim

  • Package required if vwifi has been compiled on other OpenWRT

    opkg install libstdcpp6

Run with command line

  • vwifi-client 172.16.0.1 with 172.16.0.1 the IP of vwifi-server

Run like a service

  • Copy vwifi-client into /usr/sbin

    cp vwifi-client /usr/sbin/

  • Create the service file : /etc/init.d/vwifi-client

    #!/bin/sh /etc/rc.common

START=10
STOP=15

start() {        
        echo start vwifi-client
        vwifi-client 172.16.0.1 &> /dev/null &
}                 

stop() {          
        echo stop vwifi-client
        kill -9 $(pgrep vwifi-client) 
}
    • Modify 172.16.0.1 with the IP of vwifi-server

  • Make /etc/init.d/vwifi-client executable

    chmod +x /etc/init.d/vwifi-client

  • Configure to run the service when OpenWRT boots

    service vwifi-client enable

  • Run the service

    service vwifi-client start

Test Wifi from OpenWRT

  • Don't forget to install "wpa-supplicant" and "hostapd"

    opkg install hostapd

opkg install wpa-supplicant

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