62 lines
1.9 KiB
Diff
62 lines
1.9 KiB
Diff
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--- cryptroot.orig 2022-05-21 12:59:09.224162975 +0200
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+++ usr/share/initramfs-tools/scripts/local-top/cryptroot 2022-04-23 19:58:19.872003766 +0200
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@@ -1,5 +1,7 @@
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#!/bin/sh
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+# Search for cryptkey.txt
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+
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PREREQ="cryptroot-prepare"
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#
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@@ -159,8 +161,48 @@
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# unlock via keyfile
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unlock_mapping "$CRYPTTAB_KEY"
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else
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- # unlock interactively or via keyscript
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- run_keyscript "$count" | unlock_mapping
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+ if [ -z "${CRYPTTAB_OPTION_keyscript+x}" ]; then
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+ # Wait for USB to settle
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+ /bin/sleep 3
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+
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+ # Test all devices
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+ mkdir /mnt
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+ echo -n "Searching for cryptkey.txt on available disks... "
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+ local partition
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+ for partition in `cat /proc/partitions |awk '{print $4}'|tail -n +3`; do
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+ echo -n " $partition"
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+ if mount -oro /dev/"$partition" /mnt 2>/dev/null; then
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+ echo -n "(mounted)"
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+ cat /mnt/cryptkey.txt >> /tmp/cryptkeys.txt 2>/dev/null
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+ umount /dev/"$partition"
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+ fi
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+ done
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+ echo "done."
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+ fi
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+
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+ if [ -s /tmp/cryptkeys.txt ]; then
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+ local keyfound
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+ keyfound=0
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+ echo "Trying keys from cryptkey.txt for opening $CRYPTTAB_SOURCE as $CRYPTTAB_NAME"
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+ for key in `cat /tmp/cryptkeys.txt`; do
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+ if echo -n "$key" | unlock_mapping; then
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+ # Found the key
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+ echo Key found in cryptkey.txt
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+ keyfound=1
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+ key=""
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+ fi
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+ done
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+ # Remove traces of the key
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+ rm /tmp/cryptkeys.txt
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+ unset key
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+ if [ "$keyfound" = "0" ]; then
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+ # Fall back to manual entry
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+ run_keyscript "$CRYPTTAB_KEY" "$count" | unlock_mapping
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+ fi
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+ else
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+ # unlock interactively or via keyscript
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+ run_keyscript "$CRYPTTAB_KEY" "$count" | unlock_mapping
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+ fi
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fi
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rv=$?
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count=$(( $count + 1 ))
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