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Restructered luks encryption

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This commit is contained in:
Kevin Veen-Birkenbach 2020-10-02 12:55:13 +02:00
parent 58e58294d1
commit accc367767
1 changed files with 38 additions and 24 deletions
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62
scripts/image/setup.sh
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@ -409,7 +409,11 @@ if [ "$encrypt_system" == "y" ]
# Adapted this instruction for setting up encrypted systems @see https://gist.github.com/gea0/4fc2be0cb7a74d0e7cc4322aed710d38
info "Setting encryption variables..." &&
rescue_suffix=".$(date +%s).rescue" &&
info "Setup encryption..." &&
#Concerning mkinitcpio warning @see https://gist.github.com/imrvelj/c65cd5ca7f5505a65e59204f5a3f7a6d
mkinitcpio_path="/etc/mkinitcpio.conf" &&
info "Configuring $mkinitcpio_path..." &&
mkinitcpio_rescue_path="$mkinitcpio_path$rescue_suffix" &&
mkinitcpio_search_modules="MODULES=()" &&
mkinitcpio_replace_modules="MODULES=(g_cdc usb_f_acm usb_f_ecm smsc95xx g_ether)" &&
@ -417,39 +421,49 @@ if [ "$encrypt_system" == "y" ]
mkinitcpio_replace_binaries=$(echo "BINARIES=(/usr/lib/libgcc_s.so.1)"| sed -e 's/[\/&]/\\&/g') &&
mkinitcpio_search_hooks="HOOKS=(base udev autodetect modconf block filesystems keyboard fsck)" &&
mkinitcpio_replace_hooks="HOOKS=(base udev autodetect modconf block sleep netconf dropbear encryptssh filesystems keyboard fsck)" &&
(
echo "pacman --noconfirm -S --needed $(get_packages "server/luks") &&"
echo "cp -v /home/$target_username/.ssh/authorized_keys /etc/dropbear/root_key &&"
echo "cp -v $mkinitcpio_path $mkinitcpio_rescue_path &&"
echo "sed -i 's/$mkinitcpio_search_modules/$mkinitcpio_replace_modules/g' $mkinitcpio_path &&"
echo "sed -i 's/$mkinitcpio_search_binaries/$mkinitcpio_replace_binaries/g' $mkinitcpio_path &&"
echo "sed -i 's/$mkinitcpio_search_hooks/$mkinitcpio_replace_hooks/g' $mkinitcpio_path &&"
echo "echo \"Content of $mkinitcpio_path:\$(cat \"$mkinitcpio_path\")\" &&"
echo "mkinitcpio -P &&"
) | chroot "$root_mount_path" /bin/bash &&
fstab_path="/etc/fstab" &&
info "Generating $fstab_path..." &&
fstab_rescue_path="$fstab_path$rescue_suffix" &&
(
echo "cp -v $fstab_path $fstab_rescue_path &&"
echo "echo 'UUID=$root_partition_uuid / ext4 defaults,noatime 0 1' >> $fstab_path &&"
echo "echo \"Content of $fstab_path:\$(cat \"$fstab_path\")\" &&"
) | chroot "$root_mount_path" /bin/bash &&
crypttab_path="/etc/crypttab" &&
info "Generating $crypttab_path..." &&
crypttab_rescue_path="$crypttab_path$rescue_suffix" &&
(
echo "cp -v $crypttab_path $crypttab_rescue_path &&"
echo "echo '$root_mapper_name UUID=$root_partition_uuid none luks' >> $crypttab_path &&"
echo "echo \"Content of $crypttab_path:\$(cat \"$crypttab_path\")\" &&"
) | chroot "$root_mount_path" /bin/bash &&
#boot.txt just works with raspberry pi 3 @todo Needs to be implemented for arch raspbery pi 4
boot_txt_path="/boot/boot.txt" &&
info "Generating $boot_txt_path..." &&
boot_txt_rescue_path="$boot_txt_path$rescue_suffix" &&
boot_txt_delete_line=$(echo "part uuid \${devtype} \${devnum}:2 uuid" | sed -e 's/[]\/$*.^[]/\\&/g') &&
boot_txt_setenv_origin=$(echo "setenv bootargs console=ttyS1,115200 console=tty0 root=PARTUUID=\${uuid} rw rootwait smsc95xx.macaddr=\"\${usbethaddr}\"" | sed -e 's/[]\/$*.^[]/\\&/g') &&
boot_txt_setenv_replace=$(echo "setenv bootargs console=ttyS1,115200 console=tty0 ip=::::$target_hostname:eth0:dhcp cryptdevice=UUID=$root_partition_uuid:$root_mapper_name root=$root_mapper_path rw rootwait smsc95xx.macaddr=\"\${usbethaddr}\""| sed -e 's/[\/&]/\\&/g') || error
info "Setup encryption..." &&
boot_txt_setenv_replace=$(echo "setenv bootargs console=ttyS1,115200 console=tty0 ip=::::$target_hostname:eth0:dhcp cryptdevice=UUID=$root_partition_uuid:$root_mapper_name root=$root_mapper_path rw rootwait smsc95xx.macaddr=\"\${usbethaddr}\""| sed -e 's/[\/&]/\\&/g') &&
(
echo "pacman --noconfirm -S --needed $(get_packages "server/luks") &&"
echo "cp -v /home/$target_username/.ssh/authorized_keys /etc/dropbear/root_key &&"
echo "cp -v $mkinitcpio_path $mkinitcpio_rescue_path &&"
echo "sed -i 's/$mkinitcpio_search_modules/$mkinitcpio_replace_modules/g' $mkinitcpio_path &&"
echo "sed -i 's/$mkinitcpio_search_binaries/$mkinitcpio_replace_binaries/g' $mkinitcpio_path &&"
echo "sed -i 's/$mkinitcpio_search_hooks/$mkinitcpio_replace_hooks/g' $mkinitcpio_path &&"
echo "echo \"Content of $mkinitcpio_path:\$(cat \"$mkinitcpio_path\")\" &&"
#Concerning mkinitcpio warning @see https://gist.github.com/imrvelj/c65cd5ca7f5505a65e59204f5a3f7a6d
echo "mkinitcpio -P &&"
echo "cp -v $fstab_path $fstab_rescue_path &&"
echo "echo 'UUID=$root_partition_uuid / ext4 defaults,noatime 0 1' >> $fstab_path &&"
echo "echo \"Content of $fstab_path:\$(cat \"$fstab_path\")\" &&"
echo "cp -v $crypttab_path $crypttab_rescue_path &&"
echo "echo '$root_mapper_name UUID=$root_partition_uuid none luks' >> $crypttab_path &&"
echo "echo \"Content of $crypttab_path:\$(cat \"$crypttab_path\")\" &&"
#boot.txt just works with raspberry pi 3 @todo Needs to be implemented for arch raspbery pi 4
echo "cp -v $boot_txt_path $boot_txt_rescue_path &&"
echo "sed -i 's/$boot_txt_delete_line//g' $boot_txt_path &&"
echo "sed -i 's/$boot_txt_setenv_origin/$boot_txt_setenv_replace/g' $boot_txt_path &&"
echo "echo \"Content of $boot_txt_path:\$(cat \"$boot_txt_path\")\" &&"
echo "cd /boot/ && ./mkscr &&"
echo "exit || echo 'Error in chroot environment!'"
echo "cp -v $boot_txt_path $boot_txt_rescue_path &&"
echo "sed -i 's/$boot_txt_delete_line//g' $boot_txt_path &&"
echo "sed -i 's/$boot_txt_setenv_origin/$boot_txt_setenv_replace/g' $boot_txt_path &&"
echo "echo \"Content of $boot_txt_path:\$(cat \"$boot_txt_path\")\" &&"
echo "cd /boot/ && ./mkscr &&"
echo "exit || exit 1"
) | chroot "$root_mount_path" /bin/bash || error
fi