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author Eric Hameleers <alien@slackware.com>2016-08-04 23:44:05 +0200
committer Eric Hameleers <alien@slackware.com>2016-08-04 23:44:05 +0200
commit6403d94842ba3d9a67583b594e3c47e27b3f2bd6 (patch)
tree95b3f41487f908de0a486ee6a0d0e4fad921a4b0
parentcd1da79caca0cb2e07f90d0bc513a1442a83792e (diff)
downloadliveslak-6403d94842ba3d9a67583b594e3c47e27b3f2bd6.tar.gz
liveslak-6403d94842ba3d9a67583b594e3c47e27b3f2bd6.tar.xz
iso2usb.sh: add safeguard against mistyping the LUKS passphrase.
-rw-r--r--iso2usb.sh22
1 files changed, 14 insertions, 8 deletions
diff --git a/iso2usb.sh b/iso2usb.sh
index e0aa770..5f328f4 100644
--- a/iso2usb.sh
+++ b/iso2usb.sh
@@ -256,8 +256,8 @@ create_container() {
PARTFREE=${PARTFREE%M}
if [ $PARTFREE -lt 10 ]; then
- echo "** Free space on USB partition is less than 10 MB;"
- echo "** Not creating a container file!"
+ echo "*** Free space on USB partition is less than 10 MB;"
+ echo "*** Not creating a container file!"
exit 1
fi
@@ -274,12 +274,12 @@ create_container() {
esac
if [ $CNTSIZE -le 0 ]; then
- echo "** Container size must be larger than ZERO!"
- echo "** Check your '-c' commandline parameter."
+ echo "*** Container size must be larger than ZERO!"
+ echo "*** Check your '-c' commandline parameter."
exit 1
elif [ $CNTSIZE -ge $PARTFREE ]; then
- echo "** Not enough free space for container file!"
- echo "** Check your '-c' commandline parameter."
+ echo "*** Not enough free space for container file!"
+ echo "*** Check your '-c' commandline parameter."
exit 1
fi
@@ -295,10 +295,16 @@ create_container() {
if [ "${CNTENCR}" = "luks" ]; then
# Format the loop device with LUKS:
echo "--- Encrypting the container file with LUKS; enter 'YES' and a passphrase..."
- cryptsetup -y luksFormat $LODEV
+ until cryptsetup -y luksFormat $LODEV ; do
+ echo ">>> Did you type two different passphrases?"
+ read -p ">>> Press [ENTER] to try again or Ctrl-C to abort ..." REPLY
+ done
# Unlock the LUKS encrypted container:
echo "--- Unlocking the LUKS container requires your passphrase again..."
- cryptsetup luksOpen $LODEV $(basename ${CNTBASE})
+ until cryptsetup luksOpen $LODEV $(basename ${CNTBASE}) ; do
+ echo ">>> Did you type an incorrect passphrases?"
+ read -p ">>> Press [ENTER] to try again or Ctrl-C to abort ..." REPLY
+ done
CNTDEV=/dev/mapper/$(basename ${CNTBASE})
# Now we allocate blocks for the LUKS device. We write encrypted zeroes,
# so that the file looks randomly filled from the outside.