495 lines
17 KiB
Bash
Executable File
495 lines
17 KiB
Bash
Executable File
#!/bin/bash
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set -e
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if [[ $EUID -ne 0 ]]; then
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echo "This script must be run as root"
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exit 1
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fi
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if [[ $# -eq 0 ]] ; then
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echo "Please pass version number, e.g. $0 2.0, and (if you want) a hostname, default is kali"
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exit 0
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fi
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basedir=`pwd`/rpi3-nexmon-$1
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# Custom hostname variable
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hostname=kali
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# Custom image file name variable - MUST NOT include .img at the end.
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imagename=kali-linux-$1-rpi3-nexmon
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if [ $2 ]; then
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hostname=$2
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fi
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if [ $3 ]; then
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imagename=$3
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fi
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# Generate a random machine name to be used.
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machine=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 16 | head -n 1)
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arm="abootimg cgpt fake-hwclock ntpdate u-boot-tools vboot-utils vboot-kernel-utils"
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base="e2fsprogs initramfs-tools parted sudo usbutils firmware-linux firmware-realtek firmware-atheros firmware-libertas net-tools iw wget"
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desktop="fonts-croscore kali-defaults kali-menu fonts-crosextra-caladea fonts-crosextra-carlito gnome-theme-kali gtk3-engines-xfce kali-desktop-xfce kali-root-login lightdm network-manager network-manager-gnome xfce4 xserver-xorg-video-fbdev xserver-xorg-input-evdev xserver-xorg-input-synaptics"
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tools="aircrack-ng ethtool hydra john libnfc-bin mfoc nmap passing-the-hash sqlmap usbutils winexe wireshark"
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services="apache2 openssh-server"
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extras="iceweasel xfce4-terminal wpasupplicant python-smbus i2c-tools python-requests python-configobj python-pip bluez bluez-firmware"
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nexmon="libgmp3-dev gawk qpdf bison flex make git"
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# kernel sauces take up space
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size=7000 # Size of image in megabytes
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# Git commit hash to check out for the kernel
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#kernel_commit=20fe468
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#packages="${arm} ${base} ${desktop} ${tools} ${services} ${extras} ${nexmon}"
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packages="${arm} ${base} ${services} ${extras} ${nexmon}"
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architecture="armhf"
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# If you have your own preferred mirrors, set them here.
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# After generating the rootfs, we set the sources.list to the default settings.
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mirror=http.kali.org
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# Set this to use an http proxy, like apt-cacher-ng, and uncomment further down
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# to unset it.
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#export http_proxy="http://localhost:3142/"
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mkdir -p ${basedir}
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cd ${basedir}
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# create the rootfs - not much to modify here, except maybe the hostname.
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if debootstrap --foreign --arch $architecture kali-rolling kali-$architecture http://$mirror/kali
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then
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echo "[*] Boostrap Success"
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else
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echo "[*] Boostrap Failure"
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#exit 1
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fi
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cp /usr/bin/qemu-arm-static kali-$architecture/usr/bin/
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if LANG=C systemd-nspawn -M $machine -D kali-$architecture /debootstrap/debootstrap --second-stage
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then
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echo "[*] Secondary Boostrap Success"
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else
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echo "[*] Secondary Boostrap Failure"
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#exit 1
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fi
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cat << EOF > kali-$architecture/etc/apt/sources.list
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deb http://$mirror/kali kali-rolling main contrib non-free
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EOF
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# Set hostname
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echo "$hostname" > kali-$architecture/etc/hostname
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# So X doesn't complain, we add kali to hosts
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cat << EOF > kali-$architecture/etc/hosts
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127.0.0.1 $hostname localhost
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::1 localhost ip6-localhost ip6-loopback
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fe00::0 ip6-localnet
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ff00::0 ip6-mcastprefix
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ff02::1 ip6-allnodes
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ff02::2 ip6-allrouters
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EOF
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cat << EOF > kali-$architecture/etc/modprobe.d/ipv6.conf
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# Don't load ipv6 by default
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alias net-pf-10 off
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#alias ipv6 off
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EOF
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cat << EOF > kali-$architecture/etc/network/interfaces
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auto lo
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iface lo inet loopback
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auto eth0
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iface eth0 inet dhcp
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EOF
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cat << EOF > kali-$architecture/etc/resolv.conf
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nameserver 8.8.8.8
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EOF
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cat << 'EOF' > kali-$architecture/lib/systemd/system/regenerate_ssh_host_keys.service
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[Unit]
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Description=Regenerate SSH host keys
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Before=ssh.service
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[Service]
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Type=oneshot
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ExecStartPre=-/bin/dd if=/dev/hwrng of=/dev/urandom count=1 bs=4096
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ExecStartPre=-/bin/sh -c "/bin/rm -f -v /etc/ssh/ssh_host_*_key*"
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ExecStart=/usr/bin/ssh-keygen -A -v
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ExecStartPost=/bin/sh -c "for i in /etc/ssh/ssh_host_*_key*; do actualsize=$(wc -c <\"$i\") ;if [ $actualsize -eq 0 ]; then echo size is 0 bytes ; exit 1 ; fi ; done ; /bin/systemctl disable regenerate_ssh_host_keys"
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[Install]
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WantedBy=multi-user.target
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EOF
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chmod 644 kali-$architecture/lib/systemd/system/regenerate_ssh_host_keys.service
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cat << EOF > kali-$architecture/lib/systemd/system/rpiwiggle.service
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[Unit]
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Description=Resize filesystem
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Before=regenerate_ssh_host_keys.service
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[Service]
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Type=oneshot
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ExecStart=/root/scripts/rpi-wiggle.sh
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ExecStartPost=/bin/systemctl disable rpiwiggle
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ExecStartPost=/sbin/reboot
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[Install]
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WantedBy=multi-user.target
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EOF
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chmod 644 kali-$architecture/lib/systemd/system/rpiwiggle.service
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cat << EOF > kali-$architecture/lib/systemd/system/enable-ssh.service
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[Unit]
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Description=Turn on SSH if /boot/ssh is present
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ConditionPathExistsGlob=/boot/ssh{,.txt}
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After=regenerate_ssh_host_keys.service
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[Service]
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Type=oneshot
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ExecStart=/bin/sh -c "update-rc.d ssh enable && invoke-rc.d ssh start && rm -f /boot/ssh ; rm -f /boot/ssh.txt"
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[Install]
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WantedBy=multi-user.target
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EOF
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chmod 644 kali-$architecture/lib/systemd/system/enable-ssh.service
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cat << EOF > kali-$architecture/lib/systemd/system/copy-user-wpasupplicant.service
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[Unit]
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Description=Copy user wpa_supplicant.conf
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ConditionPathExists=/boot/wpa_supplicant.conf
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Before=dhcpcd.service
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[Service]
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Type=oneshot
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RemainAfterExit=yes
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ExecStart=/bin/mv /boot/wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf
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ExecStartPost=/bin/chmod 600 /etc/wpa_supplicant/wpa_supplicant.conf
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[Install]
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WantedBy=multi-user.target
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EOF
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chmod 644 kali-$architecture/lib/systemd/system/copy-user-wpasupplicant.service
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cat << EOF > kali-$architecture/debconf.set
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console-common console-data/keymap/policy select Select keymap from full list
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console-common console-data/keymap/full select en-latin1-nodeadkeys
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EOF
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cat << 'EOF' > kali-$architecture/usr/bin/monstart
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#!/bin/bash
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interface=wlan0mon
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echo "Bring up monitor mode interface ${interface}"
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iw phy phy0 interface add ${interface} type monitor
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ifconfig ${interface} up
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if [ $? -eq 0 ]; then
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echo "started monitor interface on ${interface}"
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fi
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EOF
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chmod 755 kali-$architecture/usr/bin/monstart
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cat << 'EOF' > kali-$architecture/usr/bin/monstop
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#!/bin/bash
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interface=wlan0mon
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ifconfig ${interface} down
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sleep 1
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iw dev ${interface} del
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EOF
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chmod 755 kali-$architecture/usr/bin/monstop
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# Bluetooth enabling
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mkdir -p kali-$architecture/etc/udev/rules.d
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cp ${basedir}/../misc/pi-bluetooth/99-com.rules kali-$architecture/etc/udev/rules.d/99-com.rules
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mkdir -p kali-$architecture/lib/systemd/system/
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cp ${basedir}/../misc/pi-bluetooth/hciuart.service kali-$architecture/lib/systemd/system/hciuart.service
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mkdir -p kali-$architecture/usr/bin
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cp ${basedir}/../misc/pi-bluetooth/btuart kali-$architecture/usr/bin/btuart
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# Ensure btuart is executable
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chmod 755 kali-$architecture/usr/bin/btuart
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cat << EOF > kali-$architecture/third-stage
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#!/bin/bash
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dpkg-divert --add --local --divert /usr/sbin/invoke-rc.d.chroot --rename /usr/sbin/invoke-rc.d
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cp /bin/true /usr/sbin/invoke-rc.d
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echo -e "#!/bin/sh\nexit 101" > /usr/sbin/policy-rc.d
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chmod 755 /usr/sbin/policy-rc.d
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apt-get update
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apt-get --yes --allow-change-held-packages install locales-all
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debconf-set-selections /debconf.set
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rm -f /debconf.set
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apt-get -y install git-core binutils ca-certificates initramfs-tools u-boot-tools
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apt-get -y install locales console-common less nano git
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echo "root:toor" | chpasswd
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# sed -i -e 's/KERNEL\!=\"eth\*|/KERNEL\!=\"/' /lib/udev/rules.d/75-persistent-net-generator.rules
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# rm -f /etc/udev/rules.d/70-persistent-net.rules
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export DEBIAN_FRONTEND=noninteractive
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apt-get --yes --allow-change-held-packages install $packages
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if [ $? > 0 ];
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then
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apt-get --yes --allow-change-held-packages --fix-broken install
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fi
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apt-get --yes --allow-change-held-packages autoremove
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# Because copying in authorized_keys is hard for people to do, let's make the
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# image insecure and enable root login with a password.
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# libinput seems to fail hard on RaspberryPi devices, so we make sure it's not
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# installed here (and we have xserver-xorg-input-evdev and
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# xserver-xorg-input-synaptics packages installed above!)
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apt-get --yes --allow-change-held-packages purge xserver-xorg-input-libinput
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echo "Making the image insecure"
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rm -f /etc/ssh/ssh_host_*_key*
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sed -i -e 's/^#PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config
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systemctl enable rpiwiggle
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# Generate SSH host keys on first run
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systemctl enable regenerate_ssh_host_keys
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# Enable hciuart for bluetooth device
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systemctl enable hciuart
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# Enable copying of user wpa_supplicant.conf file
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systemctl enable copy-user-wpasupplicant
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# Enable... enabling ssh by putting ssh or ssh.txt file in /boot
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systemctl enable enable-ssh
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cp /etc/bash.bashrc /root/.bashrc
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# Fix startup time from 5 minutes to 15 secs on raise interface wlan0
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sed -i 's/^TimeoutStartSec=5min/TimeoutStartSec=15/g' "/lib/systemd/system/networking.service"
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rm -f /usr/sbin/policy-rc.d
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rm -f /usr/sbin/invoke-rc.d
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dpkg-divert --remove --rename /usr/sbin/invoke-rc.d
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rm -rf /root/.bash_history
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apt-get update
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apt-get clean
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rm -f /0
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rm -f /hs_err*
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rm -f cleanup
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#rm -f /usr/bin/qemu*
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EOF
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chmod 755 kali-$architecture/third-stage
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cat << 'EOF' > kali-$architecture/root/buildnexmon.sh
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#!/bin/bash
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kernel=$(uname -r) # Kernel is read from fakeuname.c
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git clone https://github.com/seemoo-lab/nexmon.git /opt/nexmon --depth 1
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unset CROSS_COMPILE
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export CROSS_COMPILE=/opt/nexmon/buildtools/gcc-arm-none-eabi-5_4-2016q2-linux-armv7l/bin/arm-none-eabi-
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cd /opt/nexmon/
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source setup_env.sh
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make
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cd buildtools/isl-0.10
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CC=$CCgcc
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./configure
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make
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make install
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ln -s /usr/local/lib/libisl.so /usr/lib/arm-linux-gnueabihf/libisl.so.10
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ln -s /usr/lib/arm-linux-gnueabihf/libmpfr.so.6.0.1 /usr/lib/arm-linux-gnueabihf/libmpfr.so.4
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# make scripts doesn't work if we cross crompile. Needs libisl.so before we can compile in scripts
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cd /usr/src/kernel
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make ARCH=arm scripts
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cd /opt/nexmon/
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source setup_env.sh
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# Build nexmon for pi 3
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cd /opt/nexmon/patches/bcm43430a1/7_45_41_46/nexmon/
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make clean
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make
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# Copy the ko file twice. Unsure if changes across both devices break compatibility
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cp brcmfmac_kernel49/brcmfmac.ko /lib/modules/${kernel}/kernel/drivers/net/wireless/broadcom/brcm80211/brcmfmac/brcmfmac.ko
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cp brcmfmac43430-sdio.bin /lib/firmware/brcm/brcmfmac43430-sdio.bin
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wget https://raw.githubusercontent.com/RPi-Distro/firmware-nonfree/master/brcm/brcmfmac43430-sdio.txt -O /lib/firmware/brcm/brcmfmac43430-sdio.txt
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# Build nexmon for pi 3 b+
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cd /opt/nexmon/patches/bcm43455c0/7_45_154/nexmon
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make clean
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make
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cp /opt/nexmon/patches/bcm43455c0/7_45_154/nexmon/brcmfmac_4.9.y-nexmon/brcmfmac.ko /lib/modules/${kernel}/kernel/drivers/net/wireless/broadcom/brcm80211/brcmfmac/brcmfmac.ko
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cp /opt/nexmon/patches/bcm43455c0/7_45_154/nexmon/brcmfmac43455-sdio.bin /lib/firmware/brcm/
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EOF
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chmod 755 kali-$architecture/root/buildnexmon.sh
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# rpi-wiggle
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mkdir -p ${basedir}/kali-$architecture/root/scripts
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wget https://raw.githubusercontent.com/offensive-security/rpiwiggle/master/rpi-wiggle -O kali-$architecture/root/scripts/rpi-wiggle.sh
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chmod 755 ${basedir}/kali-$architecture/root/scripts/rpi-wiggle.sh
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cat << 'EOF' > kali-$architecture/root/fakeuname.c
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#define _GNU_SOURCE
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#include <unistd.h>
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#include <sys/syscall.h>
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#include <sys/types.h>
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#include <sys/utsname.h>
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#include <stdio.h>
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#include <string.h>
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/* Fake uname -r because we are in a chroot:
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https://gist.github.com/DamnedFacts/5239593
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*/
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int uname(struct utsname *buf)
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{
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int ret;
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ret = syscall(SYS_uname, buf);
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strcpy(buf->release, "4.9.80-Re4son-v7+");
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strcpy(buf->machine, "armv7l");
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return ret;
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}
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EOF
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export MALLOC_CHECK_=0 # workaround for LP: #520465
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export LC_ALL=C
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export DEBIAN_FRONTEND=noninteractive
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#mount -t proc proc kali-$architecture/proc
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#mount -o bind /dev/ kali-$architecture/dev/
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#mount -o bind /dev/pts kali-$architecture/dev/pts
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if LANG=C systemd-nspawn -M $machine -D kali-$architecture /third-stage
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then
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echo "[*] Third Stage Boostrap Success"
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else
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echo "[*] Third Stage Boostrap Failure"
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exit 1
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fi
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rm -rf kali-$architecture/third-stage
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#umount kali-$architecture/dev/pts
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#umount kali-$architecture/dev/
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#umount kali-$architecture/proc
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# Enable login over serial
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echo "T0:23:respawn:/sbin/agetty -L ttyAMA0 115200 vt100" >> ${basedir}/kali-$architecture/etc/inittab
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# Uncomment this if you use apt-cacher-ng otherwise git clones will fail.
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#unset http_proxy
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# Kernel section. If you want to use a custom kernel, or configuration, replace
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# them in this section.
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git clone --depth 1 https://github.com/raspberrypi/firmware.git rpi-firmware
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cp -rf rpi-firmware/boot/* ${basedir}/kali-$architecture/boot/
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rm -rf rpi-firmware
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git clone --depth 1 https://github.com/nethunteros/re4son-raspberrypi-linux.git -b rpi-4.9.80-re4son ${basedir}/kali-$architecture/usr/src/kernel
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cd ${basedir}/kali-$architecture/usr/src/kernel
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# ln -s /usr/include/asm-generic /usr/include/asm
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# Set default defconfig
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export ARCH=arm
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export CROSS_COMPILE=arm-linux-gnueabihf-
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make re4son_pi2_defconfig
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# Build kernel
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make -j $(grep -c processor /proc/cpuinfo)
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make modules_install INSTALL_MOD_PATH=${basedir}/kali-$architecture
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# Copy kernel to boot
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perl scripts/mkknlimg --dtok arch/arm/boot/zImage ${basedir}/kali-$architecture/boot/kernel7.img
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cp arch/arm/boot/dts/*.dtb ${basedir}/kali-$architecture/boot/
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cp arch/arm/boot/dts/overlays/*.dtb* ${basedir}/kali-$architecture/boot/overlays/
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cp arch/arm/boot/dts/overlays/README ${basedir}/kali-$architecture/boot/overlays/
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# Make firmware and headers
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make firmware_install INSTALL_MOD_PATH=${basedir}/kali-$architecture
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# Fix up the symlink for building external modules
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# kernver is used so we don't need to keep track of what the current compiled
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# version is
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kernver=$(ls ${basedir}/kali-$architecture/lib/modules/)
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cd ${basedir}/kali-$architecture/lib/modules/$kernver
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rm build
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rm source
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ln -s /usr/src/kernel build
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ln -s /usr/src/kernel source
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# Create cmdline.txt file
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cd ${basedir}
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cat << EOF > ${basedir}/kali-$architecture/boot/cmdline.txt
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dwc_otg.fiq_fix_enable=2 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait rootflags=noload net.ifnames=0
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EOF
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# systemd doesn't seem to be generating the fstab properly for some people, so
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# let's create one.
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cat << EOF > ${basedir}/kali-$architecture/etc/fstab
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# <file system> <mount point> <type> <options> <dump> <pass>
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proc /proc proc defaults 0 0
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/dev/mmcblk0p1 /boot vfat defaults 0 2
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/dev/mmcblk0p2 / ext4 defaults,noatime 0 1
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EOF
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# Firmware needed for rpi3 wifi (copy nexmon firmware)
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mkdir -p ${basedir}/kali-$architecture/lib/firmware/brcm/
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cp ${basedir}/../misc/rpi3/brcmfmac43430-sdio-nexmon.bin ${basedir}/kali-$architecture/lib/firmware/brcm/brcmfmac43430-sdio.bin # We build this now in buildnexmon.sh
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# Firmware needed for rpi3 b+ wifi - we comment this out if building for nexmon
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cp ${basedir}/../misc/brcm/brcmfmac43455-sdio.bin ${basedir}/kali-$architecture/lib/firmware/brcm/
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cp ${basedir}/../misc/brcm/brcmfmac43455-sdio.txt ${basedir}/kali-$architecture/lib/firmware/brcm/
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cp ${basedir}/../misc/brcm/brcmfmac43455-sdio.clm_blob ${basedir}/kali-$architecture/lib/firmware/brcm/
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cp ${basedir}/../misc/rpi3/nexutil ${basedir}/kali-$architecture/usr/bin/nexutil
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chmod 755 ${basedir}/kali-$architecture/usr/bin/nexutil
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# Copy a default config, with everything commented out so people find it when
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# they go to add something when they are following instructions on a website.
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cp ${basedir}/../misc/config.txt ${basedir}/kali-$architecture/boot/config.txt
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cp ${basedir}/../misc/zram ${basedir}/kali-$architecture/etc/init.d/zram
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chmod 755 ${basedir}/kali-$architecture/etc/init.d/zram
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|
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# Create the disk and partition it
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echo "Creating image file $imagename.img"
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dd if=/dev/zero of=${basedir}/$imagename.img bs=1M count=$size
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parted $imagename.img --script -- mklabel msdos
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parted $imagename.img --script -- mkpart primary fat32 0 64
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|
parted $imagename.img --script -- mkpart primary ext4 64 -1
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|
|
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# Set the partition variables
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|
loopdevice=`losetup -f --show ${basedir}/$imagename.img`
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device=`kpartx -va $loopdevice| sed -E 's/.*(loop[0-9])p.*/\1/g' | head -1`
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sleep 5
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device="/dev/mapper/${device}"
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|
bootp=${device}p1
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rootp=${device}p2
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|
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# Create file systems
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|
mkfs.vfat $bootp
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mkfs.ext4 $rootp
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|
|
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# Create the dirs for the partitions and mount them
|
|
mkdir -p ${basedir}/root/
|
|
mount $rootp ${basedir}/root
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|
mkdir -p ${basedir}/root/boot
|
|
mount $bootp ${basedir}/root/boot
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|
|
|
echo "Rsyncing rootfs into image file"
|
|
rsync -HPavz -q ${basedir}/kali-$architecture/ ${basedir}/root/
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|
|
|
LANG=C systemd-nspawn -M $machine -D ${basedir}/root/ /bin/bash -c "cd /root && gcc -Wall -shared -o libfakeuname.so fakeuname.c"
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|
LANG=C systemd-nspawn -M $machine -D ${basedir}/root/ /bin/bash -c "chmod 755 /root/buildnexmon.sh && LD_PRELOAD=/root/libfakeuname.so /root/buildnexmon.sh"
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|
|
|
rm -rf ${basedir}/root/root/{fakeuname.c,buildnexmon.sh,libfakeuname.so}
|
|
|
|
# Make sure to enable ssh on the device by default
|
|
touch ${basedir}/root/boot/ssh
|
|
|
|
umount -l $bootp
|
|
umount -l $rootp
|
|
kpartx -dv $loopdevice
|
|
losetup -d $loopdevice
|
|
|
|
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} |