#!/usr/bin/env bash # # Kali Linux ARM build-script for Utilite Pro (32-bit) # Source: https://gitlab.com/kalilinux/build-scripts/kali-arm # # This is a community script - you will need to generate your own image to use # More information: https://www.kali.org/docs/arm/utilite-pro/ # # Stop on error set -e # Uncomment to activate debug # debug=true if [ "$debug" = true ]; then exec > >(tee -a -i "${0%.*}.log") 2>&1 set -x fi # Architecture architecture=${architecture:-"armhf"} # Generate a random machine name to be used machine=$( tr -cd 'A-Za-z0-9' &2 echo "Use: sudo $0 ${1:-2.0} ${2:-kali}" >&2 exit 1 fi # Pass version number if [[ $# -eq 0 ]]; then echo "Please pass version number, e.g. $0 2.0, and (if you want) a hostname, default is kali" >&2 exit 0 fi # Check exist bsp directory if [ ! -e "bsp" ]; then echo "Error: missing bsp directory structure" >&2 echo "Please clone the full repository ${kaligit}/build-scripts/kali-arm" >&2 exit 255 fi # Current directory repo_dir="$(pwd)" # Base directory base_dir=${repo_dir}/utilite-"$1" # Working directory work_dir="${base_dir}/kali-${architecture}" # Check directory build if [ -e "${base_dir}" ]; then echo "${base_dir} directory exists, will not continue" >&2 exit 1 elif [[ ${repo_dir} =~ [[:space:]] ]]; then echo "The directory "\"${repo_dir}"\" contains whitespace. Not supported." >&2 exit 1 else echo "The base_dir thinks it is: ${base_dir}" mkdir -p ${base_dir} fi components="main,contrib,non-free" arm="kali-linux-arm ntpdate" base="apt-transport-https apt-utils bash-completion console-setup dialog \ e2fsprogs ifupdown initramfs-tools inxi iw man-db mlocate net-tools \ netcat-traditional parted pciutils psmisc rfkill screen tmux unrar usbutils \ vim wget whiptail zerofree" desktop="kali-desktop-xfce kali-root-login xfonts-terminus xinput \ xserver-xorg-video-fbdev" tools="kali-linux-default" services="apache2 atftpd" extras="alsa-utils bc bison bluez bluez-firmware kali-linux-core \ libnss-systemd libssl-dev triggerhappy" packages="${arm} ${base} ${services}" # Automatic configuration to use an http proxy, such as apt-cacher-ng # You can turn off automatic settings by uncommenting apt_cacher=off # apt_cacher=off # By default the proxy settings are local, but you can define an external proxy # proxy_url="http://external.intranet.local" apt_cacher=${apt_cacher:-"$(lsof -i :3142 | cut -d ' ' -f3 | uniq | sed '/^\s*$/d')"} if [ -n "$proxy_url" ]; then export http_proxy=$proxy_url elif [ "$apt_cacher" = "apt-cacher-ng" ]; then if [ -z "$proxy_url" ]; then proxy_url=${proxy_url:-"http://127.0.0.1:3142/"} export http_proxy=$proxy_url fi fi # Detect architecture if [[ "${architecture}" == "arm64" ]]; then qemu_bin="/usr/bin/qemu-aarch64-static" lib_arch="aarch64-linux-gnu" elif [[ "${architecture}" == "armhf" ]]; then qemu_bin="/usr/bin/qemu-arm-static" lib_arch="arm-linux-gnueabihf" elif [[ "${architecture}" == "armel" ]]; then qemu_bin="/usr/bin/qemu-arm-static" lib_arch="arm-linux-gnueabi" fi # create the rootfs - not much to modify here, except maybe throw in some more packages if you want eatmydata debootstrap --foreign \ --keyring=/usr/share/keyrings/kali-archive-keyring.gpg \ --include=kali-archive-keyring,eatmydata \ --components=${components} \ --arch ${architecture} ${suite} ${work_dir} http://http.kali.org/kali # systemd-nspawn environment systemd-nspawn_exec() { LANG=C systemd-nspawn -q --bind-ro ${qemu_bin} -M ${machine} -D ${work_dir} "$@" } # We need to manually extract eatmydata to use it for the second stage for archive in ${work_dir}/var/cache/apt/archives/*eatmydata*.deb; do dpkg-deb --fsys-tarfile "$archive" >${work_dir}/eatmydata tar -xkf ${work_dir}/eatmydata -C ${work_dir} rm -f ${work_dir}/eatmydata done # Prepare dpkg to use eatmydata systemd-nspawn_exec dpkg-divert --divert /usr/bin/dpkg-eatmydata --rename --add /usr/bin/dpkg cat >${work_dir}/usr/bin/dpkg <${work_dir}/etc/apt/sources.list deb ${mirror} ${suite} ${components//,/ } #deb-src ${mirror} ${suite} ${components//,/ } EOF # Set hostname echo "${hostname}" >${work_dir}/etc/hostname # So X doesn't complain, we add kali to hosts cat <${work_dir}/etc/hosts 127.0.0.1 ${hostname} localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters EOF # Disable IPv6 cat <${work_dir}/etc/modprobe.d/ipv6.conf # Don't load ipv6 by default alias net-pf-10 off EOF cat <${work_dir}/etc/network/interfaces auto lo iface lo inet loopback auto eth0 allow-hotplug eth0 iface eth0 inet dhcp EOF # DNS server echo "nameserver ${nameserver}" >"${work_dir}"/etc/resolv.conf # Copy directory bsp into build dir cp -rp bsp ${work_dir} export MALLOC_CHECK_=0 # workaround for LP: #520465 # Enable the use of http proxy in third-stage in case it is enabled if [ -n "$proxy_url" ]; then echo "Acquire::http { Proxy \"$proxy_url\" };" >${work_dir}/etc/apt/apt.conf.d/66proxy fi # Third stage cat <${work_dir}/third-stage #!/bin/bash -e export DEBIAN_FRONTEND=noninteractive eatmydata apt-get update eatmydata apt-get -y install binutils ca-certificates console-common git initramfs-tools less locales nano u-boot-tools # Create kali user with kali password... but first, we need to manually make some groups because they don't yet exist.. # This mirrors what we have on a pre-installed VM, until the script works properly to allow end users to set up their own... user # However we leave off floppy, because who a) still uses them, and b) attaches them to an SBC!? # And since a lot of these have serial devices of some sort, dialout is added as well # scanner, lpadmin and bluetooth have to be added manually because they don't # yet exist in /etc/group at this point groupadd -r -g 118 bluetooth groupadd -r -g 113 lpadmin groupadd -r -g 122 scanner groupadd -g 1000 kali useradd -m -u 1000 -g 1000 -G sudo,audio,bluetooth,cdrom,dialout,dip,lpadmin,netdev,plugdev,scanner,video,kali -s /bin/bash kali echo "kali:kali" | chpasswd aptops="--allow-change-held-packages -o dpkg::options::=--force-confnew -o Acquire::Retries=3" # This looks weird, but we do it twice because every so often, there's a failure to download from the mirror # So to workaround it, we attempt to install them twice eatmydata apt-get install -y \$aptops ${packages} || eatmydata apt-get --yes --fix-broken install eatmydata apt-get install -y \$aptops ${packages} || eatmydata apt-get --yes --fix-broken install eatmydata apt-get install -y \$aptops ${desktop} ${extras} ${tools} || eatmydata apt-get --yes --fix-broken install eatmydata apt-get install -y \$aptops ${desktop} ${extras} ${tools} || eatmydata apt-get --yes --fix-broken install eatmydata apt-get install -y \$aptops --autoremove systemd-timesyncd || eatmydata apt-get --yes --fix-broken install eatmydata apt-get dist-upgrade -y \$aptops eatmydata apt-get -y --allow-change-held-packages --purge autoremove # Linux console/Keyboard configuration echo 'console-common console-data/keymap/policy select Select keymap from full list' | debconf-set-selections echo 'console-common console-data/keymap/full select en-latin1-nodeadkeys' | debconf-set-selections # Copy all services install -m644 /bsp/services/all/*.service /etc/systemd/system/ # Regenerated the shared-mime-info database on the first boot # since it fails to do so properly in a chroot systemctl enable smi-hack # Enable sshd systemctl enable ssh # Allow users to use NM over ssh install -m644 /bsp/polkit/10-NetworkManager.pkla /var/lib/polkit-1/localauthority/50-local.d cd /root apt download -o APT::Sandbox::User=root ca-certificates 2>/dev/null # Copy over the default bashrc cp /etc/skel/.bashrc /root/.bashrc # Set a REGDOMAIN. This needs to be done or wireless doesn't work correctly on the RPi 3B+ sed -i -e 's/REGDOM.*/REGDOMAIN=00/g' /etc/default/crda # Enable serial console access echo "T1:23:respawn:/sbin/agetty -L ttymxc3 115200 vt100" >> /etc/inittab # Try and make the console a bit nicer # Set the terminus font for a bit nicer display sed -i -e 's/FONTFACE=.*/FONTFACE="Terminus"/' /etc/default/console-setup sed -i -e 's/FONTSIZE=.*/FONTSIZE="6x12"/' /etc/default/console-setup # Fix startup time from 5 minutes to 15 secs on raise interface wlan0 sed -i 's/^TimeoutStartSec=5min/TimeoutStartSec=15/g' "/usr/lib/systemd/system/networking.service" rm -f /usr/bin/dpkg EOF # Run third stage chmod 0755 ${work_dir}/third-stage systemd-nspawn_exec /third-stage # Clean up eatmydata systemd-nspawn_exec dpkg-divert --remove --rename /usr/bin/dpkg # Clean system systemd-nspawn_exec <<'EOF' rm -f /0 rm -rf /bsp fc-cache -frs rm -rf /tmp/* rm -rf /etc/*- rm -rf /hs_err* rm -rf /userland rm -rf /opt/vc/src rm -f /etc/ssh/ssh_host_* rm -rf /var/lib/dpkg/*-old rm -rf /var/lib/apt/lists/* rm -rf /var/cache/apt/*.bin rm -rf /var/cache/apt/archives/* rm -rf /var/cache/debconf/*.data-old for logs in $(find /var/log -type f); do > $logs; done history -c EOF # Disable the use of http proxy in case it is enabled if [ -n "$proxy_url" ]; then unset http_proxy rm -rf ${work_dir}/etc/apt/apt.conf.d/66proxy fi # Mirror & suite replacement if [[ ! -z "${4}" || ! -z "${5}" ]]; then mirror=${4} suite=${5} fi cat <>${work_dir}/etc/udev/links.conf M ttymxc3 c 5 1 EOF cat <>${work_dir}/etc/securetty ttymxc3 EOF # Mirror replacement if [[ ! -z "${@:5}" || "$suite" != "kali-rolling" ]]; then mirror=${@:5} [ ! -z "${@:5}" ] || mirror="http://http.kali.org/kali" [ "$suite" != "kali-rolling" ] && suite=kali-rolling fi # Define sources.list cat <${work_dir}/etc/apt/sources.list deb ${mirror} ${suite} ${components//,/ } #deb-src ${mirror} ${suite} ${components//,/ } EOF # systemd doesn't seem to be generating the fstab properly for some people, so # let's create one. We leave the root partition off and add it below after # we create the partition in the image so we can use the UUID cat <${work_dir}/etc/fstab # proc /proc proc defaults 0 0 /dev/mmcblk0p1 /boot vfat defaults 0 2 EOF cd ${base_dir} # Clone a cross compiler to use instead of the Kali one due to kernel age git clone --depth 1 https://gitlab.com/kalilinux/packages/gcc-arm-linux-gnueabihf-4-7.git gcc-arm-linux-gnueabihf-4.7 # Kernel section. If you want to use a custom kernel, or configuration, replace # them in this section git clone --branch utilite/devel --depth 1 https://github.com/utilite-computer/linux-kernel ${work_dir}/usr/src/kernel cd ${work_dir}/usr/src/kernel git rev-parse HEAD >${work_dir}/usr/src/kernel-at-commit patch -p1 --no-backup-if-mismatch <${repo_dir}/patches/mac80211.patch # Needed for issues with hdmi being inited already in u-boot patch -p1 --no-backup-if-mismatch <${repo_dir}/patches/f922b0d.patch patch -p1 --no-backup-if-mismatch <${repo_dir}/patches/0001-wireless-carl9170-Enable-sniffer-mode-promisc-flag-t.patch # This patch is necessary for older revisions of the Utilite so leave the patch # and comment in the repo to know why this is here. Should be fixed by a u-boot # upgrade but CompuLab haven't released it yet, so leave it here for now #patch -p1 --no-backup-if-mismatch < ${repo_dir}/patches/31727b0.patch cp ${repo_dir}/kernel-configs/utilite-3.10.config .config cp ${repo_dir}/kernel-configs/utilite-3.10.config ${work_dir}/usr/src/utilite-3.10.config touch .scmversion export ARCH=arm export CROSS_COMPILE="${base_dir}"/gcc-arm-linux-gnueabihf-4.7/bin/arm-linux-gnueabihf- make -j $(grep -c processor /proc/cpuinfo) make modules_install INSTALL_MOD_PATH=${work_dir} cp arch/arm/boot/zImage ${work_dir}/boot/zImage-cm-fx6 cp arch/arm/boot/dts/imx6q-sbc-fx6m.dtb ${work_dir}/boot/imx6q-sbc-fx6m.dtb make mrproper cp ../utilite-3.10.config .config cd "${base_dir}" # 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 ${work_dir}/lib/modules/) cd ${work_dir}/lib/modules/${kernver} rm build rm source ln -s /usr/src/kernel build ln -s /usr/src/kernel source cd "${base_dir}" # Create a file to set up our u-boot environment cat <${work_dir}/boot/boot.txt setenv mmcdev 2 setenv bootargs 'earlyprintk console=ttymxc3,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=$fstype rw rootwait net.ifnames=0' setenv loadaddr 0x10800000 setenv fdtaddr 0x15000000 setenv bootm_low 0x15000000 setenv zimage zImage-cm-fx6 setenv dtb imx6q-sbc-fx6m.dtb #setenv kernel uImage-cm-fx6 load mmc \${mmcdev}:1 \${loadaddr} \${zimage} load mmc \${mmcdev}:1 \${fdtaddr} \${dtb} bootz \${loadaddr} - \${fdtaddr} #load mmc \${mmcdev}:1 \${loadaddr} \${kernel} #bootm \${loadaddr} EOF # And generate the boot.scr mkimage -A arm -T script -C none -d ${work_dir}/boot/boot.txt ${work_dir}/boot/boot.scr cd "${base_dir}" # Calculate the space to create the image root_size=$(du -s -B1 ${work_dir} --exclude=${work_dir}/boot | cut -f1) root_extra=$((${root_size} / 1024 / 1000 * 5 * 1024 / 5)) raw_size=$(($((${free_space} * 1024)) + ${root_extra} + $((${bootsize} * 1024)) + 4096)) # Create the disk and partition it echo "Creating image file ${image_name}.img" fallocate -l $(echo ${raw_size}Ki | numfmt --from=iec-i --to=si) "${image_dir}/${image_name}.img" parted -s "${image_dir}/${image_name}.img" mklabel msdos parted -s "${image_dir}/${image_name}.img" mkpart primary fat32 1MiB ${bootsize}MiB parted -s -a minimal "${image_dir}/${image_name}.img" mkpart primary $fstype ${bootsize}MiB 100% # Set the partition variables loopdevice=$(losetup -f --show ${repo_dir}/${image_name}.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 -n BOOT ${bootp} # The utilite uses an older kernel, and newer mkfs tools add extras to ext3, so # we disable them otherwise there will be a kernel panic at boot if [[ $fstype == ext4 ]]; then features="-O ^64bit,^metadata_csum" elif [[ $fstype == ext3 ]]; then features="-O ^64bit" fi mkfs $features -t $fstype -L ROOTFS ${rootp} # Create the dirs for the partitions and mount them mkdir -p "${base_dir}"/root mount ${rootp} "${base_dir}"/root mkdir -p "${base_dir}"/root/boot mount ${bootp} "${base_dir}"/root/boot # We do this down here to get rid of the build system's resolv.conf after running through the build echo "nameserver ${nameserver}" >"${work_dir}"/etc/resolv.conf # Create an fstab so that we don't mount / read-only UUID=$(blkid -s UUID -o value ${rootp}) echo "UUID=$UUID / $fstype errors=remount-ro 0 1" >>${work_dir}/etc/fstab echo "Rsyncing rootfs into image file" rsync -HPavz -q ${work_dir}/ ${base_dir}/root/ # Unmount partitions sync umount ${bootp} umount ${rootp} kpartx -dv ${loopdevice} losetup -d ${loopdevice} # Limit CPU function limit_cpu() { # Random name group rand=$( tr -cd 'A-Za-z0-9'