openwrt_auto_install.sh

#!/bin/sh

pwd_var=$(pwd)

if [ -z "$1" ]; then
	echo "Argument 1: Empty router ssh name"
	exit 1
fi

if [ -f /usr/bin/apt ]; then
	sudo apt update && sudo apt-get install -y make unzip bzip2 build-essential libncurses5-dev libncursesw5-dev
fi

if [ -f /usr/bin/pacman ]; then
	sudo pacman -S make wget rsync base-devel unzip python3 python-distutils-extra --noconfirm
fi

ROUTER_NAME=$1

if ! ssh -o StrictHostKeyChecking=no $ROUTER_NAME cat /etc/os-release; then
	echo "SSH connection or remote command failed"
	exit 1
fi

ROUTER_KERNEL="$(ssh $ROUTER_NAME uname -r)"
ROUTER_OS_RELEASE="$(ssh $ROUTER_NAME cat /etc/os-release)"
VERSION=$(echo "$ROUTER_OS_RELEASE" | grep VERSION | head -n 1 | sed -r 's/.*"([^"]+).*/\1/g')
BOARD=$(echo "$ROUTER_OS_RELEASE" | grep OPENWRT_BOARD | head -n 1 | sed -r 's/.*"([^"]+).*/\1/g')
CONFIGBUILDINFO_URL="https://downloads.openwrt.org/releases/$VERSION/targets/$BOARD/config.buildinfo"

if [ ! -d $pwd_var/openwrt ]; then
	git clone https://git.openwrt.org/openwrt/openwrt.git
fi

cd $pwd_var/openwrt
git checkout v$VERSION

wget $CONFIGBUILDINFO_URL -O .config

./scripts/feeds update -a
./scripts/feeds install -a

make defconfig

make -j$(nproc) download
make -j$(nproc) tools/compile
make -j$(nproc) toolchain/compile
make -j$(nproc) target/linux/compile

WIREGUARD_FOLDER=$(find $pwd_var/openwrt -type d | grep "/drivers/net/wireguard" | grep target | head -n 1)

cp $pwd_var/QUICWireGuard.patch $WIREGUARD_FOLDER/QUICWireGuard.patch

cd $WIREGUARD_FOLDER

if [ ! -f QUICWireGuard_tmp ]; then
	patch -p1 <QUICWireGuard.patch
	touch QUICWireGuard_tmp
fi

cd $pwd_var/openwrt

make -j$(nproc) target/linux/compile

if [ -f $WIREGUARD_FOLDER/wireguard.ko ]; then
	scp -O $WIREGUARD_FOLDER/wireguard.ko $ROUTER_NAME:/lib/modules/$ROUTER_KERNEL/
	echo "Command succeeded"
fi