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Support multiple encrypted devices #54

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Support multiple encrypted devices #54

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fb11260
Add luksuuid= and lukskeydesc=
sbrudenell Feb 6, 2022
51728e8
Add keyctl feature
sbrudenell Feb 7, 2022
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1 change: 1 addition & 0 deletions features.d/keyctl.files
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
/bin/keyctl
16 changes: 14 additions & 2 deletions initramfs-init.in
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Expand Up @@ -347,7 +347,7 @@ myopts="alpine_dev autodetect autoraid chart cryptroot cryptdm cryptheader crypt
cryptdiscards cryptkey debug_init dma init init_args keep_apk_new modules ovl_dev
pkgs quiet root_size root usbdelay ip alpine_repo apkovl alpine_start splash
blacklist overlaytmpfs overlaytmpfsflags rootfstype rootflags nbd resume s390x_net
dasd ssh_key BOOTIF zfcp"
dasd ssh_key BOOTIF zfcp luksuuid lukskeydesc"

for opt; do
case "$opt" in
Expand All @@ -364,7 +364,7 @@ for opt; do

for i in $myopts; do
case "$opt" in
$i=*) eval "KOPT_${i}"='${opt#*=}';;
$i=*) eval "KOPT_${i}=\${KOPT_${i}:+\$KOPT_${i} }${opt#*=}";;
$i) eval "KOPT_${i}=yes";;
no$i) eval "KOPT_${i}=no";;
esac
Expand Down Expand Up @@ -492,6 +492,18 @@ if [ -n "$KOPT_cryptroot" ]; then
fi
fi

if [ -n "$KOPT_lukskeydesc" ]; then
read -s -p "Passphrase for key $KOPT_lukskeydesc: "
echo -n "$REPLY" | /bin/keyctl padd user "$KOPT_lukskeydesc" @u
fi

for uuid in $KOPT_luksuuid; do
nlplug-findfs $cryptopts -p /sbin/mdev ${KOPT_debug_init:+-d} UUID=$uuid
dev=$(findfs UUID=$uuid)
echo "Unlocking $dev as luks-$uuid"
/sbin/cryptsetup open $dev luks-$uuid
done

if [ -n "$KOPT_nbd" ]; then
# TODO: Might fail because nlplug-findfs hasn't plugged eth0 yet
configure_ip
Expand Down