4
# This is an example hook script. It will be run by 'mkinitramfs'
5
# when it creates the image. It's job is to decide which files to
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# install, then install them into the staging area, where the
7
# initramfs is being created. This happens when a new 'linux-image'
8
# package is installed, or when the administrator runs 'mkinitramfs'
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# by hand to update an initramfs image.
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# TODO: What about the case where you install something that should be
12
# added to the initramfs, but the linux-image it relates to has
13
# already been installed previously? Does this happen often
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# enough that it needs to be handled? How can it be handled?
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# * Think about the 'usplash'. The initramfs will need to be
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# updated if a theme change or update is desired. Maybe it
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# should not be totally automatic, but offered on upgrade
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# predicated on a user response to a debconf question? That
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# issue needs to be explored and a solution specified.
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# * Do not assume that any needed subdirectories have been created
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# yet, but don't bail out if they are already there.
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# * All of the standard system tools are available, of course, since
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# this hook is running in the real system, not the initramfs.
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# * TODO: ... ? Anything else to tell them in this bullet-list?
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# The environment contains at least:
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# CONFDIR -- usually /etc/mkinitramfs, can be set on mkinitramfs
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# DESTDIR -- The staging directory where we are building the image.
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# TODO: Decide what environment variables are meaningful and defined
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# in this context, then document them as part of the interface.
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# TODO: May need a version_compare function for comparison of VERSION?
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# List the soft prerequisites here. This is a space separated list of
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# names, of scripts that are in the same directory as this one, that
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# must be run before this one can be.
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# You can do anything you need to from here on.
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# Source the optional 'hook-functions' scriptlet, if you need the
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# functions defined within it. Read it to see what is available to
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# you. It contains functions for copying dynamically linked program
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# binaries, and kernel modules into the DESTDIR.
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. /usr/share/initramfs-tools/hook-functions
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CONFDIR="/conf/conf.d/mandos"
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DESTCONFDIR="${DESTDIR}${CONFDIR}"
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mkdir --parents "${DESTCONFDIR}"
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PLUGINDIR="${CONFDIR}/plugins.d"
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mkdir --parents "${DESTDIR}${PLUGINDIR}"
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# We don't need to copy_exec mandos-client, hooks/cryptroot will do
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# that. That will not copy the plugins, however, so we do that here.
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# The standard plugins
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for file in /usr/lib/mandos/plugins.d/*; do
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base="`basename \"$file\"`"
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# Is this plugin overridden?
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if [ -e "/etc/mandos/plugins.d/$base" ]; then
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*~|.*|\#*\#|*.dpkg-old|*.dpkg-new|*.dpkg-divert) : ;;
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*) copy_exec "$file" "${PLUGINDIR}";;
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# Any user-supplied plugins
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for file in /etc/mandos/plugins.d/*; do
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base="`basename \"$file\"`"
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*~|.*|*.dpkg-old|*.dpkg-new|*.dpkg-divert) : ;;
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*) copy_exec "$file" "${PLUGINDIR}";;
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# GPGME needs /usr/bin/gpg
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if [ -n "`ls \"${DESTDIR}\"/usr/lib/libgpgme.so* 2>/dev/null`" ]; then
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copy_exec /usr/bin/gpg
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for file in /etc/mandos/*; do
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if [ -d "$file" ]; then
121
cp --archive --sparse=always "$file" "${DESTCONFDIR}"
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# Create key ring files
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LANG=C gpg --quiet --batch --no-tty --no-options \
125
--homedir "${DESTCONFDIR}" --no-permission-warning \
126
--import "${DESTCONFDIR}/seckey.txt" \
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--import-options import-minimal
128
chown nobody "${DESTCONFDIR}/secring.gpg"
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# /keyscripts/mandos-client will drop priviliges, but needs access to
131
# its plugin directory. However, since almost all files in initrd
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# have been created with umask 027, this opening of permissions is needed.
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# (The umask is not really intended to affect the files inside the
135
# initrd, but the initrd.img file itself, since it now contains secret
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# key files. There is, however, no other way to set the permission of
137
# the initrd.img file without a race condition. This umask is set by
138
# "/usr/share/initramfs-tools/conf-hooks.d/mandos".)
141
while [ "$full" != "/" ]; do
142
chmod a+rX "${DESTDIR}$full"
143
full="`dirname \"$full\"`"
145
for dir in / /bin /etc /keyscripts /sbin /scripts /usr /usr/bin; do
146
chmod a+rX "${DESTDIR}$dir"
148
for dir in /lib /usr/lib; do
149
chmod --recursive a+rX "${DESTDIR}$dir"
added
removed
initramfs-tools-hook
