3
# This script will run in the initrd environment at boot and edit
4
# /conf/conf.d/cryptroot to set /lib/mandos/plugin-runner as keyscript
5
# when no other keyscript is set, before cryptsetup.
8
# This script should be installed as
9
# "/usr/share/initramfs-tools/scripts/local-top/mandos" which will
10
# eventually be "/scripts/local-top/mandos" in the initrd.img file.
12
# No initramfs pre-requirements; we must instead run BEFORE cryptroot.
13
# This is not a problem, since cryptroot forces itself to run LAST.
27
for param in `cat /proc/cmdline`; do
35
test -r /conf/conf.d/cryptroot
38
# Do not replace cryptroot file unless we need to.
42
mandos=/lib/mandos/plugin-runner
44
# parse /conf/conf.d/cryptroot. Format:
45
# target=sda2_crypt,source=/dev/sda2,key=none,keyscript=/foo/bar/baz
46
exec 3>/conf/conf.d/cryptroot.mandos
47
while read options; do
49
# Split option line on commas
52
for opt in $options; do
53
# Find the keyscript option, if any
56
keyscript="${opt#keyscript=}"
57
newopts="$newopts,$opt"
61
newopts="$newopts,$opt"
67
# If there was no keyscript option, add one.
68
if [ -z "$keyscript" ]; then
70
newopts="$newopts,keyscript=$mandos"
72
newopts="${newopts#,}"
74
done < /conf/conf.d/cryptroot
77
# If we need to, replace the old cryptroot file with the new file.
78
if [ "$replace_cryptroot" = yes ]; then
79
mv /conf/conf.d/cryptroot /conf/conf.d/cryptroot.mandos-old
80
mv /conf/conf.d/cryptroot.mandos /conf/conf.d/cryptroot
82
rm /conf/conf.d/cryptroot.mandos