PAL.C.T MINI SHELL
#!/bin/bash
# Author: Jan Vcelak <jvcelak@redhat.com>
set -e
# default options
CERTDB_DIR=/etc/openldap/certs
# internals
MODULE_CKBI="$(rpm --eval %{_libdir})/libnssckbi.so"
RANDOM_SOURCE=/dev/urandom
PASSWORD_BYTES=32
# parse arguments
usage() {
printf "usage: create-certdb.sh [-d certdb]\n" >&2
exit 1
}
while getopts "d:" opt; do
case "$opt" in
d)
CERTDB_DIR="$OPTARG"
;;
\?)
usage
;;
esac
done
[ "$OPTIND" -le "$#" ] && usage
# verify target location
if [ ! -d "$CERTDB_DIR" ]; then
printf "Directory '%s' does not exist.\n" "$CERTDB_DIR" >&2
exit 1
fi
if [ ! "$(find "$CERTDB_DIR" -maxdepth 0 -empty | wc -l)" -eq 1 ]; then
printf "Directory '%s' is not empty.\n" "$CERTDB_DIR" >&2
exit 1
fi
# create the database
printf "Creating certificate database in '%s'.\n" "$CERTDB_DIR" >&2
PASSWORD_FILE="$CERTDB_DIR/password"
OLD_UMASK="$(umask)"
umask 0377
dd if=$RANDOM_SOURCE bs=$PASSWORD_BYTES count=1 2>/dev/null | base64 > "$PASSWORD_FILE"
umask "$OLD_UMASK"
certutil -d "$CERTDB_DIR" -N -f "$PASSWORD_FILE" &>/dev/null
# load module with builtin CA certificates
echo | modutil -dbdir "$CERTDB_DIR" -add "Root Certs" -libfile "$MODULE_CKBI" &>/dev/null
# tune permissions
for dbfile in "$CERTDB_DIR"/*.db; do
chmod 0644 "$dbfile"
done
exit 0
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