diff options
Diffstat (limited to 'rc.d/init.d/functions')
| -rw-r--r-- | rc.d/init.d/functions | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/rc.d/init.d/functions b/rc.d/init.d/functions index 6768c71d..15fc6415 100644 --- a/rc.d/init.d/functions +++ b/rc.d/init.d/functions @@ -604,5 +604,165 @@ is_false() { return 1 } +key_is_random() { + [ "$1" = "/dev/urandom" -o "$1" = "/dev/hw_random" \ + -o "$1" = "/dev/random" ] +} + +find_crypto_mount_point() { + local fs_spec fs_file fs_vfstype remaining_fields + local fs + while read fs_spec fs_file remaining_fields; do + if [ "$fs_spec" = "/dev/mapper/$1" ]; then + echo $fs_file + break; + fi + done < /etc/fstab +} + +# Because of a chicken/egg problem, init_crypto must be run twice. /var may be +# encrypted but /var/lib/random-seed is needed to initialize swap. +init_crypto() { + local have_random dst src key opt mode owner params makeswap skip arg opt + local param value rc ret mke2fs mdir prompt mount_point + + ret=0 + have_random=$1 + while read dst src key opt; do + [ -z "$dst" -o "${dst#\#}" != "$dst" ] && continue + [ -b "/dev/mapper/$dst" ] && continue; + if [ "$have_random" = 0 ] && key_is_random "$key"; then + continue + fi + if [ -n "$key" -a "x$key" != "xnone" ]; then + if test -e "$key" ; then + owner=$(ls -l $key | (read a b owner rest; echo $owner)) + if ! key_is_random "$key"; then + mode=$(ls -l "$key" | cut -c 5-10) + if [ "$mode" != "------" ]; then + echo $"INSECURE MODE FOR $key" + fi + fi + if [ "$owner" != root ]; then + echo $"INSECURE OWNER FOR $key" + fi + else + echo $"Key file for $dst not found, skipping" + ret=1 + continue + fi + else + key="" + fi + params="" + makeswap="" + mke2fs="" + skip="" + # Parse the src field for UUID= and convert to real device names + if [ "${src%%=*}" == "UUID" ]; then + src=$(/sbin/blkid -t "$src" -l -o device) + elif [ "${src/^\/dev\/disk\/by-uuid\/}" != "$src" ]; then + src=$(__readlink $src) + fi + # Is it a block device? + [ -b "$src" ] || continue + # Is it already a device mapper slave? (this is gross) + devesc=${src##/dev/} + devesc=${devesc//\//!} + for d in /sys/block/dm-*/slaves ; do + [ -e $d/$devesc ] && continue 2 + done + # Parse the options field, convert to cryptsetup parameters and + # contruct the command line + while [ -n "$opt" ]; do + arg=${opt%%,*} + opt=${opt##$arg} + opt=${opt##,} + param=${arg%%=*} + value=${arg##$param=} + + case "$param" in + cipher) + params="$params -c $value" + if [ -z "$value" ]; then + echo $"$dst: no value for cipher option, skipping" + skip="yes" + fi + ;; + size) + params="$params -s $value" + if [ -z "$value" ]; then + echo $"$dst: no value for size option, skipping" + skip="yes" + fi + ;; + hash) + params="$params -h $value" + if [ -z "$value" ]; then + echo $"$dst: no value for hash option, skipping" + skip="yes" + fi + ;; + verify) + params="$params -y" + ;; + swap) + makeswap=yes + ;; + tmp) + mke2fs=yes + esac + done + if [ "$skip" = "yes" ]; then + ret=1 + continue + fi + if [ -z "$makeswap" ] && cryptsetup isLuks "$src" 2>/dev/null ; then + if key_is_random "$key"; then + echo $"$dst: LUKS requires non-random key, skipping" + ret=1 + continue + fi + if [ -n "$params" ]; then + echo "$dst: options are invalid for LUKS partitions," \ + "ignoring them" + fi + if [ -n "$key" ]; then + /sbin/cryptsetup -d $key luksOpen "$src" "$dst" <&1 2>/dev/null && success || failure + rc=$? + else + mount_point="$(find_crypto_mount_point $dst)" + [ -n "$mount_point" ] || mount_point=${src##*/} + prompt=$(printf $"%s is password protected" "$mount_point") + plymouth ask-for-password --prompt "$prompt" --command="/sbin/cryptsetup luksOpen -T1 $src $dst" <&1 + rc=$? + fi + else + [ -z "$key" ] && plymouth --hide-splash + /sbin/cryptsetup $params ${key:+-d $key} create "$dst" "$src" <&1 2>/dev/null && success || failure + rc=$? + [ -z "$key" ] && plymouth --show-splash + fi + if [ $rc -ne 0 ]; then + ret=1 + continue + fi + if [ -b "/dev/mapper/$dst" ]; then + if [ "$makeswap" = "yes" ]; then + mkswap "/dev/mapper/$dst" 2>/dev/null >/dev/null + fi + if [ "$mke2fs" = "yes" ]; then + if mke2fs "/dev/mapper/$dst" 2>/dev/null >/dev/null \ + && mdir=$(mktemp -d /tmp/mountXXXXXX); then + mount "/dev/mapper/$dst" "$mdir" && chmod 1777 "$mdir" + umount "$mdir" + rmdir "$mdir" + fi + fi + fi + done < /etc/crypttab + return $ret +} + # A sed expression to filter out the files that is_ignored_file recognizes __sed_discard_ignored_files='/\(~\|\.bak\|\.orig\|\.rpmnew\|\.rpmorig\|\.rpmsave\)$/d' |