kali-arm/banana-pro.sh

#!/bin/bash
set -e

if [[ $EUID -ne 0 ]]; then
   echo "This script must be run as root"
   exit 1
fi

if [[ $# -eq 0 ]] ; then
    echo "Please pass version number, e.g. $0 2.0"
    exit 0
fi

basedir='`pwd`/bananapro-$1'

# Custom hostname variable
hostname=${2:-kali}
# Custom image file name variable - MUST NOT include .img at the end.
imagename=${3:-kali-linux-$1-bananapro}
# Size of image in megabytes (Default is 7000=7GB)
size=7000
# Suite to use.  
# Valid options are:
# kali-rolling, kali-dev, kali-bleeding-edge, kali-dev-only, kali-experimental, kali-last-snapshot
# A release is done against kali-last-snapshot, but if you're building your own, you'll probably want to build
# kali-rolling.
suite=kali-rolling

# Generate a random machine name to be used.
machine=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 16 | head -n 1)

# Make sure that the cross compiler can be found in the path before we do
# anything else, that way the builds don't fail half way through.
export CROSS_COMPILE=arm-linux-gnueabihf-
if [ $(compgen -c $CROSS_COMPILE | wc -l) -eq 0 ] ; then
    echo "Missing cross compiler. Set up PATH according to the README"
    exit 1
fi
# Unset CROSS_COMPILE so that if there is any native compiling needed it doesn't
# get cross compiled.
unset CROSS_COMPILE

# If libfdt-dev is installed, u-boot will fail to compile due to the fdt headers
# being different than the ones the build system expects, so we uninstall libfdt
# and at the end of the script we will reinstall it.

if [[ $(dpkg-query -W -f='${Status}' libfdt-dev 2>/dev/null | grep -c "ok installed") -eq 1 ]];
then
    echo "Removing libfdt-dev because it causes issues with the build"
    apt-get --yes purge libfdt-dev
    libfdtdev=1
fi

# Package installations for various sections.
# This will build a minimal XFCE Kali system with the top 10 tools.
# This is the section to edit if you would like to add more packages.
# See http://www.kali.org/new/kali-linux-metapackages/ for meta packages you can
# use. You can also install packages, using just the package name, but keep in
# mind that not all packages work on ARM! If you specify one of those, the
# script will throw an error, but will still continue on, and create an unusable
# image, keep that in mind.

arm="abootimg cgpt fake-hwclock ntpdate u-boot-tools vboot-utils vboot-kernel-utils"
base="apt-utils e2fsprogs ifupdown initramfs-tools kali-defaults parted sudo usbutils firmware-linux firmware-atheros firmware-libertas firmware-realtek"
desktop="kali-defaults fonts-croscore fonts-crosextra-caladea fonts-crosextra-carlito gnome-theme-kali gtk3-engines-xfce kali-desktop-xfce lightdm network-manager network-manager-gnome xfce4 xserver-xorg-video-fbdev"
tools="aircrack-ng ethtool hydra john libnfc-bin mfoc nmap passing-the-hash sqlmap usbutils winexe wireshark"
services="apache2 openssh-server"
extras="iceweasel xfce4-terminal wpasupplicant"

packages="${arm} ${base} ${services} ${extras}"
architecture="armhf"
# If you have your own preferred mirrors, set them here.
# You may want to leave security.kali.org alone, but if you trust your local
# mirror, feel free to change this as well.
# After generating the rootfs, we set the sources.list to the default settings.
mirror=http.kali.org

# Set this to use an http proxy, like apt-cacher-ng, and uncomment further down
# to unset it.
#export http_proxy="http://localhost:3142/"

mkdir -p "${basedir}"
cd "${basedir}"

# create the rootfs - not much to modify here, except maybe throw in some more packages if you want.
debootstrap --foreign --keyring=/usr/share/keyrings/kali-archive-keyring.gpg --include=kali-archive-keyring --arch ${architecture} ${suite} kali-${architecture} http://${mirror}/kali

cp /usr/bin/qemu-arm-static kali-${architecture}/usr/bin/

LANG=C systemd-nspawn -M ${machine} -D kali-${architecture} /debootstrap/debootstrap --second-stage

mkdir -p kali-${architecture}/etc/apt/
cat << EOF > kali-${architecture}/etc/apt/sources.list
deb http://${mirror}/kali ${suite} main contrib non-free
EOF

echo "${hostname}" > kali-${architecture}/etc/hostname

cat << EOF > kali-${architecture}/etc/hosts
127.0.0.1       ${hostname}    localhost
::1             localhost ip6-localhost ip6-loopback
fe00::0         ip6-localnet
ff00::0         ip6-mcastprefix
ff02::1         ip6-allnodes
ff02::2         ip6-allrouters
EOF

mkdir -p kali-${architecture}/etc/network/
cat << EOF > kali-${architecture}/etc/network/interfaces
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp
EOF

cat << EOF > kali-${architecture}/etc/resolv.conf
nameserver 8.8.8.8
EOF

export MALLOC_CHECK_=0 # workaround for LP: #520465
export LC_ALL=C
export DEBIAN_FRONTEND=noninteractive

#mount -t proc proc kali-$architecture/proc
#mount -o bind /dev/ kali-$architecture/dev/
#mount -o bind /dev/pts kali-$architecture/dev/pts

cat << EOF > kali-${architecture}/debconf.set
console-common console-data/keymap/policy select Select keymap from full list
console-common console-data/keymap/full select en-latin1-nodeadkeys
EOF

mkdir -p kali-${architecture}/lib/systemd/system/
cat << 'EOF' > kali-${architecture}/lib/systemd/system/regenerate_ssh_host_keys.service
[Unit]
Description=Regenerate SSH host keys
Before=ssh.service
[Service]
Type=oneshot
ExecStartPre=-/bin/dd if=/dev/hwrng of=/dev/urandom count=1 bs=4096
ExecStartPre=-/bin/sh -c "/bin/rm -f -v /etc/ssh/ssh_host_*_key*"
ExecStart=/usr/bin/ssh-keygen -A -v
ExecStartPost=/bin/sh -c "for i in /etc/ssh/ssh_host_*_key*; do actualsize=$(wc -c <\"$i\") ;if [ $actualsize -eq 0 ]; then echo size is 0 bytes ; exit 1 ; fi ; done ; /bin/systemctl disable regenerate_ssh_host_keys"
[Install]
WantedBy=multi-user.target
EOF
chmod 644 kali-${architecture}/lib/systemd/system/regenerate_ssh_host_keys.service

cat << EOF > kali-${architecture}/lib/systemd/system/rpiwiggle.service
[Unit]
Description=Resize filesystem
Before=regenerate_ssh_host_keys.service
[Service]
Type=oneshot
ExecStart=/root/scripts/rpi-wiggle.sh
ExecStartPost=/bin/systemctl disable rpiwiggle
ExecStartPost=/sbin/reboot
[Install]
WantedBy=multi-user.target
EOF
chmod 644 kali-${architecture}/lib/systemd/system/rpiwiggle.service

cat << EOF > kali-${architecture}/third-stage
#!/bin/bash
set -e
dpkg-divert --add --local --divert /usr/sbin/invoke-rc.d.chroot --rename /usr/sbin/invoke-rc.d
cp /bin/true /usr/sbin/invoke-rc.d
echo -e "#!/bin/sh\nexit 101" > /usr/sbin/policy-rc.d
chmod 755 /usr/sbin/policy-rc.d

apt-get update
apt-get --yes --allow-change-held-packages install locales-all

debconf-set-selections /debconf.set
rm -f /debconf.set
apt-get update
apt-get -y install git-core binutils ca-certificates initramfs-tools u-boot-tools
apt-get -y install locales console-common less nano git
echo "root:toor" | chpasswd
rm -f /etc/udev/rules.d/70-persistent-net.rules
export DEBIAN_FRONTEND=noninteractive
apt-get --yes --allow-change-held-packages install ${packages} || apt-get --yes --fix-broken install
apt-get --yes --allow-change-held-packages install ${desktop} ${tools} || apt-get --yes --fix-broken install
apt-get --yes --allow-change-held-packages dist-upgrade
apt-get --yes --allow-change-held-packages autoremove

sed -i -e 's/^#PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config

# Resize filesystem on first boot
systemctl enable rpiwiggle

# Generate SSH host keys on first run
systemctl enable regenerate_ssh_host_keys
systemctl enable ssh

rm -f /usr/sbin/policy-rc.d
rm -f /usr/sbin/invoke-rc.d
dpkg-divert --remove --rename /usr/sbin/invoke-rc.d

rm -f /third-stage
EOF

chmod 755 kali-${architecture}/third-stage
LANG=C systemd-nspawn -M ${machine} -D kali-${architecture} /third-stage

cat << EOF > kali-${architecture}/cleanup
#!/bin/bash
rm -rf /root/.bash_history
apt-get update
apt-get clean
rm -f /0
rm -f /hs_err*
rm -f cleanup
rm -f /usr/bin/qemu*
EOF

chmod 755 kali-${architecture}/cleanup
LANG=C systemd-nspawn -M ${machine} -D kali-${architecture} /cleanup

#umount kali-${architecture}/proc/sys/fs/binfmt_misc
#umount kali-${architecture}/dev/pts
#umount kali-${architecture}/dev/
#umount kali-${architecture}/proc

# Enable the serial console
echo "T1:12345:respawn:/sbin/agetty -L ttyS0 115200 vt100" >> "${basedir}"/kali-${architecture}/etc/inittab
# Load the ethernet module since it doesn't load automatically at boot.
echo "sunxi_emac" >> "${basedir}"/kali-${architecture}/etc/modules

cat << EOF > "${basedir}"/kali-${architecture}/etc/apt/sources.list
deb http://http.kali.org/kali kali-rolling main non-free contrib
deb-src http://http.kali.org/kali kali-rolling main non-free contrib
EOF

# Automatically load the wifi module, since it doesn't seem to get loaded by the
# kernel.
echo "ap6210" >> "${basedir}"/kali-${architecture}/etc/modules-load.d/modules.conf

# Uncomment this if you use apt-cacher-ng otherwise git clones will fail.
#unset http_proxy

# Kernel section.  If you want to us ea custom kernel, or configuration, replace
# them in this section.
# Get, compile and install kernel
git clone --depth 1 https://github.com/LeMaker/u-boot-bananapi
git clone --depth 1 https://github.com/LeMaker/linux-sunxi -b lemaker-3.4 "${basedir}"/kali-${architecture}/usr/src/kernel
git clone --depth 1 https://github.com/linux-sunxi/sunxi-tools
git clone --depth 1 https://github.com/LeMaker/sunxi-boards

cd "${basedir}"/sunxi-tools
make fex2bin
./fex2bin "${basedir}"/sunxi-boards/sys_config/a20/BananaPro.fex "${basedir}"/kali-${architecture}/boot/script.bin

cd "${basedir}"/kali-${architecture}/usr/src/kernel
git rev-parse HEAD > "${basedir}"/kali-${architecture}/usr/src/kernel-at-commit
patch -p1 --no-backup-if-mismatch < "${basedir}"/../patches/mac80211.patch
touch .scmversion
export ARCH=arm
export CROSS_COMPILE=arm-linux-gnueabihf-
cp "${basedir}"/../kernel-configs/lemaker.config .config
cp "${basedir}"/../kernel-configs/lemaker.config "${basedir}"/kali-${architecture}/usr/src/lemaker.config
make -j $(grep -c processor /proc/cpuinfo) uImage modules
make modules_install INSTALL_MOD_PATH="${basedir}"/kali-${architecture}
make firmware_install INSTALL_MOD_PATH="${basedir}"/kali-${architecture}
cp arch/arm/boot/uImage "${basedir}"/kali-${architecture}/boot/
make mrproper
cp ../lemaker.config .config
make modules_prepare

# Fix up the symlink for building external modules
# kernver is used so we don't need to keep track of what the current compiled
# version is
kernver=$(ls "${basedir}"/kali-${architecture}/lib/modules/)
cd "${basedir}"/kali-${architecture}/lib/modules/${kernver}
rm build
rm source
ln -s /usr/src/kernel build
ln -s /usr/src/kernel source
cd "${basedir}"

# Create boot.txt file
cat << EOF > "${basedir}"/kali-${architecture}/boot/boot.cmd
setenv bootargs console=ttyS0,115200 root=/dev/mmcblk0p2 rootwait panic=10 \${extra} rw rootfstype=ext4 net.ifnames=0
fatload mmc 0 0x43000000 script.bin
fatload mmc 0 0x48000000 uImage
bootm 0x48000000
EOF

# Create u-boot boot script image
mkimage -A arm -T script -C none -d "${basedir}"/kali-${architecture}/boot/boot.cmd "${basedir}"/kali-${architecture}/boot/boot.scr

cp "${basedir}"/../misc/zram "${basedir}"/kali-${architecture}/etc/init.d/zram
chmod 755 "${basedir}"/kali-${architecture}/etc/init.d/zram

sed -i -e 's/^#PermitRootLogin.*/PermitRootLogin yes/' "${basedir}"/kali-${architecture}/etc/ssh/sshd_config

# Create the disk and partition it
dd if=/dev/zero of="${basedir}"/${imagename}.img bs=1M count=${size}
parted ${imagename}.img --script -- mklabel msdos
parted ${imagename}.img --script -- mkpart primary fat32 2048s 264191s
parted ${imagename}.img --script -- mkpart primary ext4 264192s 100%

# Set the partition variables
loopdevice=`losetup -f --show "${basedir}"/${imagename}.img`
device=`kpartx -va ${loopdevice} | sed 's/.*\(loop[0-9]\+\)p.*/\1/g' | head -1`
sleep 5
device="/dev/mapper/${device}"
bootp=${device}p1
rootp=${device}p2

# Create file systems
mkfs.vfat ${bootp}
mkfs.ext4 -O ^flex_bg -O ^metadata_csum ${rootp}

# Create the dirs for the partitions and mount them
mkdir -p "${basedir}"/root
mount ${rootp} "${basedir}"/root
mkdir -p "${basedir}"/root/boot
mount ${bootp} "${basedir}"/root/boot

# We do this down here to get rid of the build system's resolv.conf after running through the build.
cat << EOF > kali-${architecture}/etc/resolv.conf
nameserver 8.8.8.8
EOF

echo "Rsyncing rootfs to image file"
rsync -HPavz -q "${basedir}"/kali-${architecture}/ "${basedir}"/root/

# Unmount partitions
sync
umount ${bootp}
umount ${rootp}
kpartx -dv ${loopdevice}

cd "${basedir}"/u-boot-bananapi/
# Build u-boot
make distclean
make BananaPro_config
make -j $(grep -c processor /proc/cpuinfo)

dd if=u-boot-sunxi-with-spl.bin of=${loopdevice} bs=1024 seek=8

cd "${basedir}"

losetup -d ${loopdevice}

if [[ "$libfdtdev" -eq "1" ]]; then
    echo "Installing libfdt-dev because it was installed before image build"
    apt-get --yes install libfdt-dev;
fi

# Don't pixz on 32bit, there isn't enough memory to compress the images.
MACHINE_TYPE=`uname -m`
if [ ${MACHINE_TYPE} == 'x86_64' ]; then
echo "Compressing ${imagename}.img"
pixz "${basedir}"/${imagename}.img "${basedir}"/../${imagename}.img.xz
rm "${basedir}"/${imagename}.img
fi

# Clean up all the temporary build stuff and remove the directories.
# Comment this out to keep things around if you want to see what may have gone
# wrong.
echo "Cleaning up the temporary build files..."
rm -rf "${basedir}"