Implemented raid1 luks encrypted draft

This commit is contained in:
Kevin Veen-Birkenbach 2020-12-20 21:16:56 +01:00
parent 04fc26d01b
commit bc1b9e84a7
11 changed files with 121 additions and 71 deletions

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@ -0,0 +1,2 @@
# Storage
For security reasons storages **SHOULD** be encrypted with [LUKS](https://de.wikipedia.org/wiki/Dm-crypt#Erweiterung_mit_LUKS). To keep it standardized and easy this scripts will use [btrfs](https://de.wikipedia.org/wiki/Btrfs) as file system.

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@ -8,7 +8,68 @@ set_device_mount_partition_and_mapper_paths(){
mount_path="/media/$mapper_name" &&
partition_path="$device_path""1" &&
info "mapper name set to : $mapper_name" &&
info "mapper path set to : $mapper_path" ||
info "mapper path set to : $mapper_path" &&
info "mount path set to : $mount_path" ||
error
}
# @var $1 mapper_path
# @var $2 partition_path
create_luks_key_and_update_cryptab(){
LUKS_KEY_DIRECTORY="/etc/luks-keys/" &&
info "Creating luks-key-directory..." &&
sudo mkdir $LUKS_KEY_DIRECTORY || warning "Directory exists: $LUKS_KEY_DIRECTORY" || error
luks_key_name="$1.keyfile" &&
secret_key_path="$LUKS_KEY_DIRECTORY$luks_key_name" &&
info "Generate secret key under: $secret_key_path" || error
if [ -f "$secret_key_path" ]
then
warning "File allready exist. Overwritting!"
fi
sudo dd if=/dev/urandom of=$secret_key_path bs=512 count=8 &&
sudo cryptsetup -v luksAddKey $2 $secret_key_path &&
info "Opening and closing device to verify that that everything works fine..." &&
sudo cryptsetup -v luksOpen $2 $1 --key-file=$secret_key_path &&
sudo cryptsetup -v luksClose $1 &&
info "Reading UUID..." &&
uuid_line=$(sudo cryptsetup luksDump $2 | grep "UUID") &&
uuid=$(echo "${uuid_line/UUID:/""}"|sed -e "s/[[:space:]]\+//g") &&
crypttab_path="/etc/crypttab" &&
crypttab_entry="$1 UUID=$uuid $secret_key_path luks" &&
info "Adding crypttab entry..." || error
if sudo grep -q "$crypttab_entry" "$crypttab_path";
then
warning "File $crypttab_path contains allready a the following entry:" &&
echo "$crypttab_entry" &&
info "Skipped." ||
error
else
sudo sh -c "echo '$crypttab_entry' >> $crypttab_path" ||
error
fi
info "The file $crypttab_path contains now the following:" &&
sudo cat $crypttab_path ||
error
}
# @var $1 mapper_name
# @var $2 mount_path
update_fstab(){
fstab_path="/etc/fstab"
fstab_entry="$1 $2 btrfs defaults 0 2"
info "Adding fstab entry..."
if sudo grep -q "$fstab_entry" "$fstab_path"; then
warning "File $fstab_path contains allready a the following entry:" &&
echo "$fstab_entry" &&
info "Skipped." ||
error
else
sudo sh -c "echo '$fstab_entry' >> $fstab_path" ||
error
fi
info "The file $fstab_path contains now the following:" &&
sudo cat $fstab_path ||
error
}

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@ -1,70 +0,0 @@
#!/bin/bash
source "$(dirname "$(readlink -f "${0}")")/base.sh" || (echo "Loading base.sh failed." && exit 1)
echo "Automount encrypted storages"
echo
set_device_mount_partition_and_mapper_paths
info "Creating key luks-key-directory..." &&
key_directory="/etc/luks-keys/" &&
sudo mkdir $key_directory || warning "Directory exists: $key_directory"
luks_key_name="$mapper_name""_name_secret_key" &&
secret_key_path="$key_directory$luks_key_name" &&
info "Generate secret key under: $secret_key_path" &&
if [ -f "$secret_key_path" ]
then
warning "File allready exist. Overwritting!"
fi
sudo dd if=/dev/urandom of=$secret_key_path bs=512 count=8 &&
sudo cryptsetup -v luksAddKey $partition_path $secret_key_path ||
error
info "Opening and closing device to verify that that everything works fine..." &&
sudo cryptsetup -v luksOpen $partition_path $mapper_name --key-file=$secret_key_path &&
sudo cryptsetup -v luksClose $mapper_name ||
error
info "Reading UUID..."
uuid_line=$(sudo cryptsetup luksDump $partition_path | grep "UUID") &&
uuid=$(echo "${uuid_line/UUID:/""}"|sed -e "s/[[:space:]]\+//g") ||
error
crypttab_path="/etc/crypttab"
crypttab_entry="$mapper_name UUID=$uuid $secret_key_path luks"
info "Adding crypttab entry..."
if sudo grep -q "$crypttab_entry" "$crypttab_path";
then
warning "File $crypttab_path contains allready a the following entry:" &&
echo "$crypttab_entry" &&
info "Skipped." ||
error
else
sudo sh -c "echo '$crypttab_entry' >> $crypttab_path" ||
error
fi
info "The file $crypttab_path contains now the following:" &&
sudo cat $crypttab_path ||
error
# info "Verifying crypttab configuration..." &&
# sudo cryptdisks_start $mapper_name ||
# error
fstab_path="/etc/fstab"
fstab_entry="$mapper_path $mount_path btrfs defaults 0 2"
info "Adding fstab entry..."
if sudo grep -q "$fstab_entry" "$fstab_path"; then
warning "File $crypttab_path contains allready a the following entry:" &&
echo "$fstab_entry" &&
info "Skipped." ||
error
else
sudo sh -c "echo '$fstab_entry' >> $fstab_path" ||
error
fi
info "The file $fstab_path contains now the following:" &&
sudo cat $fstab_path ||
error
success "Installation finished. Please restart :)"

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#!/bin/bash
source "$(dirname "$(readlink -f "${0}")")/../base.sh" || (echo "Loading base.sh failed." && exit 1)
set_raid1_devices_mount_partition_and_mapper_paths(){
info "RAID1 partition 1..." &&
set_device_mount_partition_and_mapper_paths &&
partition_path_1=$partition_path &&
mapper_name_1=$mapper_name &&
mapper_path_1=$mapper_path &&
mount_path_1=$mount_path &&
info "RAID1 partition 2..." &&
set_device_mount_partition_and_mapper_paths &&
partition_path_2=$partition_path &&
mapper_name_2=$mapper_name &&
mapper_path_2=$mapper_path &&
mount_path_2=$mount_path || error
}

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#!/bin/bash
source "$(dirname "$(readlink -f "${0}")")/base.sh" || (echo "Loading base.sh failed." && exit 1)
info "Automount raid1 encrypted storages..."
create_luks_key_and_update_cryptab $mapper_name_1 $partition_path_1
create_luks_key_and_update_cryptab $mapper_name_2 $partition_path_2
update_fstab $mapper_path_1 $mount_path_1
success "Installation finished. Please restart :)"

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@ -0,0 +1,20 @@
#!/bin/bash
# @author Kevin Veen-Birkenbach [kevin@veen.world]
# @see https://balaskas.gr/btrfs/raid1.html
# @see https://mutschler.eu/linux/install-guides/ubuntu-btrfs-raid1/
source "$(dirname "$(readlink -f "${0}")")/base.sh" || (echo "Loading base.sh failed." && exit 1)
set_raid1_devices_mount_partition_and_mapper_paths
info "Encrypting $partition_path_1..." &&
cryptsetup luksFormat $partition_path_1 &&
info "Encrypting $partition_path_2..." &&
cryptsetup luksFormat $partition_path_2 &&
blkid | tail -2 &&
cryptsetup luksOpen $partition_path_1 $mapper_name_1 &&
cryptsetup luksOpen $partition_path_2 $mapper_name_2 &&
cryptsetup status $mapper_path_1 &&
cryptsetup status $mapper_path_2 &&
mkfs.btrfs -L $label -m raid1 -d raid1 $mapper_path_1 $mapper_path_2 &&
success "Encryption successfull :)" ||
error

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#!/bin/bash
source "$(dirname "$(readlink -f "${0}")")/../base.sh" || (echo "Loading base.sh failed." && exit 1)

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#!/bin/bash
source "$(dirname "$(readlink -f "${0}")")/base.sh" || (echo "Loading base.sh failed." && exit 1)
echo "Automount encrypted storages"
echo
set_device_mount_partition_and_mapper_paths
create_luks_key_and_update_cryptab $mapper_name $partition_path
update_fstab $mapper_path $mount_path
success "Installation finished. Please restart :)"

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@ -1,3 +1,4 @@
#!/bin/bash
source "$(dirname "$(readlink -f "${0}")")/base.sh" || (echo "Loading base.sh failed." && exit 1)
echo "Setups disk encryption"