dracut/0014-luks-key-on-ext-dev-wait-for-luks.patch

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2011-10-19 13:30:00 +00:00
From c70f6415f8df27565540a1ec1b3a65c09ce3253b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Przemys=C5=82aw=20Rudy?= <prudy1@o2.pl>
Date: Tue, 7 Jun 2011 20:22:51 +0200
Subject: [PATCH] luks key on ext dev - wait for luks
This asks for the luks passphrase if key is not found for defined time (if defined with rd.luks.tout cmd line):
modules.d/90crypt/cryptroot-ask.sh | 21 ++++++++++++++++++---
modules.d/90crypt/parse-crypt.sh | 5 +++--
2 files changed, 21 insertions(+), 5 deletions(-)
---
modules.d/90crypt/cryptroot-ask.sh | 21 ++++++++++++++++++---
modules.d/90crypt/parse-crypt.sh | 5 +++--
2 files changed, 21 insertions(+), 5 deletions(-)
diff --git a/modules.d/90crypt/cryptroot-ask.sh b/modules.d/90crypt/cryptroot-ask.sh
index f8e1bd8..9b8f8c2 100755
--- a/modules.d/90crypt/cryptroot-ask.sh
+++ b/modules.d/90crypt/cryptroot-ask.sh
@@ -22,6 +22,9 @@ NEWROOT=${NEWROOT:-"/sysroot"}
# default luksname - luks-UUID
luksname=$2
+# fallback to passphrase
+ask_passphrase=1
+
# if device name is /dev/dm-X, convert to /dev/mapper/name
if [ "${1##/dev/dm-}" != "$1" ]; then
device="/dev/mapper/$(dmsetup info -c --noheadings -o name "$1")"
@@ -63,12 +66,21 @@ fi
info "luksOpen $device $luksname"
-if [ -n "$(getarg rd.luks.key)" ]; then
+while [ -n "$(getarg rd.luks.key)" ]; do
if tmp=$(getkey /tmp/luks.keys $device); then
keydev="${tmp%%:*}"
keypath="${tmp#*:}"
else
- info "No key found for $device. Will try later."
+ if [ $# -eq 3 ]; then
+ if [ $3 -eq 0 ]; then
+ info "No key found for $device. Fallback to passphrase mode."
+ break
+ fi
+ info "No key found for $device. Will try $3 time(s) more later."
+ set -- "$1" "$2" "$(($3 - 1))"
+ else
+ info "No key found for $device. Will try later."
+ fi
initqueue --unique --onetime --settled \
--name cryptroot-ask-$luksname \
$(command -v cryptroot-ask) "$@"
@@ -80,7 +92,10 @@ if [ -n "$(getarg rd.luks.key)" ]; then
readkey "$keypath" "$keydev" "$device" \
| cryptsetup -d - luksOpen "$device" "$luksname"
unset keypath keydev
-else
+ ask_passphrase=0
+ break
+done
+if [ $ask_passphrase -ne 0 ]; then
luks_open="$(command -v cryptsetup) luksOpen"
ask_for_password --ply-tries 5 \
--ply-cmd "$luks_open -T1 $device $luksname" \
diff --git a/modules.d/90crypt/parse-crypt.sh b/modules.d/90crypt/parse-crypt.sh
index 7ec232a..c76fb23 100755
--- a/modules.d/90crypt/parse-crypt.sh
+++ b/modules.d/90crypt/parse-crypt.sh
@@ -11,6 +11,7 @@ else
} > /etc/udev/rules.d/70-luks.rules.new
LUKS=$(getargs rd.luks.uuid rd_LUKS_UUID)
+ tout=$(getarg rd.luks.tout)
if [ -n "$LUKS" ]; then
for luksid in $LUKS; do
@@ -20,7 +21,7 @@ else
printf -- 'ENV{ID_FS_UUID}=="*%s*", ' $luksid
printf -- 'RUN+="%s --unique --onetime ' $(command -v initqueue)
printf -- '--name cryptroot-ask-%%k %s ' $(command -v cryptroot-ask)
- printf -- '$env{DEVNAME} luks-$env{ID_FS_UUID}"\n'
+ printf -- '$env{DEVNAME} luks-$env{ID_FS_UUID} %s"\n' $tout
} >> /etc/udev/rules.d/70-luks.rules.new
printf -- '[ -e /dev/disk/by-uuid/*%s* ]\n' $luksid \
@@ -34,7 +35,7 @@ else
{
printf -- 'ENV{ID_FS_TYPE}=="crypto_LUKS", RUN+="%s ' $(command -v initqueue)
printf -- '--unique --onetime --name cryptroot-ask-%%k '
- printf -- '%s $env{DEVNAME} luks-$env{ID_FS_UUID}"\n' $(command -v cryptroot-ask)
+ printf -- '%s $env{DEVNAME} luks-$env{ID_FS_UUID} %s"\n' $(command -v cryptroot-ask) $tout
} >> /etc/udev/rules.d/70-luks.rules.new
fi