129 lines
3.2 KiB
Bash
Executable File
129 lines
3.2 KiB
Bash
Executable File
#!/bin/sh
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type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh
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# Set defaults.
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YK_SLOT="2"
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DEVICE_MAX_WAIT="60"
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MESSAGE_TIMEOUT="10"
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SHOW_YK_INSERT_MSG="false"
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LUKS_PROMPT="Passphrase"
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FIDO2LUKS_PROMPT="Password"
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LUKS_PASSPHRASE_FALLBACK="false"
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# Load config file.
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FIDO2LUKS_CONFIG="/etc//bin/fido2luks.json"
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if [ -f "$FIDO2LUKS_CONFIG" ] ; then
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export FIDO2LUKS_CONFIG="$FIDO2LUKS_CONFIG"
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fi
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LUKS_UUIDS="$(getargs rd./bin/fido2luks.uuid | tr ' ' '\n'| cut -d '-' -f 2-)"
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display_msg_timeout () {
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local MSG="$1"
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(plymouth display-message --text="$MSG";sleep $MESSAGE_TIMEOUT;plymouth hide-message --text="$MSG") &
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}
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display_msg () {
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local MSG="$1"
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plymouth display-message --text="$MSG" &
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}
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hide_msg () {
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local MSG="$1"
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plymouth hide-message --text="$MSG" &
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}
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hide_devices () {
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# Find all networking devices currenly installed...
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HIDE_PCI="`lspci -mm -n | grep '^[^ ]* "02'|awk '{print $1}'`"
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# ... and optionally all USB controllers...
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if getargbool 0 rd./bin/fido2luks.hide_all_usb; then
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HIDE_PCI="$HIDE_PCI `lspci -mm -n | grep '^[^ ]* "0c03'|awk '{print $1}'`"
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fi
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HIDE_PCI="$HIDE_PCI `getarg rd./bin/fido2luks.hide_pci | tr ',' ' '`"
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modprobe xen-pciback 2>/dev/null || :
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# ... and hide them so that Dom0 doesn't load drivers for them
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for dev in $HIDE_PCI; do
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BDF=0000:$dev
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if [ -e /sys/bus/pci/devices/$BDF/driver ]; then
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echo -n $BDF > /sys/bus/pci/devices/$BDF/driver/unbind
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fi
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echo -n $BDF > /sys/bus/pci/drivers/pciback/new_slot
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echo -n $BDF > /sys/bus/pci/drivers/pciback/bind
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done
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}
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handle_authenticator () {
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WAIT_COUNTER="0"
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YUBIKEY_TEST=""
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YUBIKEY_MSG="Please insert your authenticator..."
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while ! /bin/fido2luks connected 2> /dev/null ; do
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YUBIKEY_TEST="1"
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if [ "$SHOW_YK_INSERT_MSG" != "true" ] ; then
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break
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fi
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if [ "$YUBIKEY_MSG" != "" ] ; then
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display_msg "$YUBIKEY_MSG"
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HIDE_MSG="$YUBIKEY_MSG"
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YUBIKEY_MSG=""
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fi
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if [ "$WAIT_COUNTER" -ge "$DEVICE_MAX_WAIT" ] ; then
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break
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fi
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WAIT_COUNTER="$[$WAIT_COUNTER+1]"
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sleep 1
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done
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if [ "$HIDE_MSG" != "" ] ; then
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hide_msg "$HIDE_MSG"
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fi
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while true ; do
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if [ "$YUBIKEY_TEST" == "" ] ; then
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if [ "$LUKS_PASSPHRASE_FALLBACK" != "true" ] ; then
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break
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fi
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LUKS_PASSPHRASE="$(/usr/bin/systemd-ask-password --no-tty "$LUKS_PROMPT")"
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for UUID in $LUKS_UUIDS ; do
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DEV="$(blkid -U "$UUID")"
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if echo "$LUKS_PASSPHRASE" | cryptsetup luksOpen "$DEV" luks-$UUID ; then
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LUKS_MSG="Luks device opened successful: $DEV"
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display_msg_timeout "$LUKS_MSG"
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else
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LUKS_MSG="Failed to open luks device: $DEV (Wrong password?)"
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display_msg_timeout "$LUKS_MSG"
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LUKS_OPEN_FAILURE="true"
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fi
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done
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else
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/bin/fido2luks open || display_msg_timeout "Failed to utilise authenticator"
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YUBIKEY_MSG="Received response from yubikey."
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display_msg_timeout "$YUBIKEY_MSG"
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LUKS_OPEN_FAILURE="false"
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fi
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if ! $LUKS_OPEN_FAILURE ; then
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break
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fi
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done
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}
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if [ "$LUKS_UUIDS" != "" ] ; then
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handle_authenticator
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fi
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rm /etc/udev/rules.d/60-u2f-hidraw.rules
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systemctl daemon-reload
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# Make sure we hide devices from dom0 after yubikey/luks setup.
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hide_devices
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