seperated actions that need root privilege
changed default mount point to /var/lib/cryptobox/mnt
This commit is contained in:
parent
8b6da7fc24
commit
e616b2d316
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@ -3,7 +3,7 @@ Version: 0.3.0-1
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Section: base
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Priority: optional
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Architecture: all
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Depends: bash (>=2.0), sed (>=4.0), coreutils, grep (>=2.0), perl, httpd-cgi, hashalot, libconfigfile-perl, cryptsetup-luks, dmsetup, at
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Depends: bash (>=2.0), sed (>=4.0), coreutils, grep (>=2.0), perl, httpd-cgi, hashalot, libconfigfile-perl, cryptsetup-luks, dmsetup, at, sudo
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Suggests: stunnel, cron, iptables, samba
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Maintainer: Lars Kruse <devel@sumpfralle.de>
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Description: Web interface for encrypting fileserver
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@ -5,4 +5,15 @@ update-rc.d cryptobox defaults 98
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invoke-rc.d cryptobox restart
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if grep -q "cryptobox package.*HEADER" /etc/sudoers
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then true
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else echo "Adding a new (disabled) entry to /etc/sudoers"
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cat >>/etc/sudoers <<-EOF
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######### Automatically inserted by cryptobox package - do not remove - HEADER ######
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# read /usr/share/doc/cryptobox/SECURITY carefully before enabling the following line
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#www-data ALL=NOPASSWD:/usr/lib/cryptobox/cbox-root-actions.sh
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######### Automatically inserted by cryptobox package - do not remove - FOOTER ######
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EOF
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fi
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true
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@ -3,5 +3,10 @@
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# remove symlinks in /etc/rc?.d
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[ "$1" = "purge" ] && update-rc.d cryptobox remove
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if [ "$1" = "purge" ] && grep -q "cryptobox package.*HEADER" /etc/sudoers
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then echo "Removing entry from /etc/sudoers"
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sed -i "/cryptobox package.*HEADER/,/cryptobox package.*FOOTER/d" /etc/sudoers
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fi
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# return without error
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true
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@ -3,8 +3,13 @@
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LANGUAGE=en
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NET_IFACE=eth0
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SAMBA_USER=nobody
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SCAN_DEVICES="hda hdb hdc hdd hde hdf hdg scd0 scd1 scd2 scd3 sg sda sdb sdc sdd"
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FILE_USER=cryptobox-data
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WEB_USER=www-data
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SCAN_DEVICES="hda hdb hdc hdd hde hdf hdg scd sg sda sdb sdc sdd"
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# set this to "1" to create a dedicated configuration partition (very small)
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# this should only be necessary, if your root filesystem is read-only (as for a live-cd)
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USE_SEPERATE_CONFIG_PARTITION=0
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# web interface
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HTML_TEMPLATE_DIR=/usr/share/cryptobox/templates
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@ -14,11 +19,12 @@ STYLESHEET_URL=/cryptobox-misc/cryptobox.css
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LANGUAGE_DIR=/usr/share/cryptobox/lang
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DOC_DIR=/usr/share/doc/cryptobox/html
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CONFIG_DEFAULTS_DIR=/usr/share/cryptobox/defaults
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CONFIG_DIR=/mnt/cb-etc
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MNT_PARENT=/mnt/crypto
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CONFIG_DIR=/var/lib/cryptobox/config
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MNT_PARENT=/var/lib/cryptobox/mnt
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# some files
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CB_SCRIPT=/usr/lib/cryptobox/cbox-manage.sh
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ROOT_PERM_SCRIPT=/usr/lib/cryptobox/cbox-root-actions.sh
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DEV_FEATURES_SCRIPT=/usr/lib/cryptobox/devel-features.sh
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FIREWALL_SCRIPT=/usr/lib/cryptobox/firewall.sh
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MAKE_CERT_SCRIPT=/usr/lib/cryptobox/make_stunnel_cert.sh
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@ -39,6 +45,7 @@ MKFS_DATA=/sbin/mkfs.ext3
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MKFS_CONFIG=/sbin/mkfs.ext2
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CRYPTSETUP=/sbin/cryptsetup
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IPTABLES=/sbin/iptables
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IFCONFIG=/sbin/ifconfig
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# firewall setings
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# do not use multiports (iptables) as the timeout-script depends on
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@ -1 +0,0 @@
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do not remove this file
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@ -1 +0,0 @@
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do not remove this file
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@ -23,7 +23,7 @@ my $CONFIG_FILE = '/etc/cryptobox/cryptobox.conf';
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my $pagedata;
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my ($LANGUAGE_DIR, $DEFAULT_LANGUAGE, $HTML_TEMPLATE_DIR, $DOC_DIR);
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my ($CB_SCRIPT, $LOG_FILE, $IS_DEVEL);
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my ($CB_SCRIPT, $LOG_FILE, $IS_DEVEL, $STYLESHEET_URL);
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&fatal_error ("could not find configuration file ($CONFIG_FILE)") unless (-e $CONFIG_FILE);
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my $config = ConfigFile::read_config_file($CONFIG_FILE);
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@ -15,6 +15,9 @@
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# - the web frontend cgi
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#
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# TODO: check permissions and owners of config files, directories and scripts before
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# running cbox-root-actions.sh
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set -eu
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# read the default setting file, if it exists
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@ -25,6 +28,9 @@ CONF_FILE=${CONF_FILE:-/etc/cryptobox/cryptobox.conf}
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# parse config file
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. "$CONF_FILE"
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# check for writable log file
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[ -w "$LOG_FILE" ] || LOG_FILE=/tmp/$(basename "$LOG_FILE")
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## configuration
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CERT_TEMP=/tmp/stunnel.pem
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@ -54,28 +60,16 @@ function error_msg()
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}
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function create_partitions()
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# Parameter: device
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{
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# TODO: allow different layouts
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# TODO: skip config partition if a configuration is already active
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local device=$1
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# first partition size is 1 sector, second goes til end
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# sfdisk -n doesn't actually write (for testing purpose)
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echo -e "0,1,L \n,,L\n" | "$SFDISK" "$device"
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}
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function config_set_value()
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# parameters: SettingName [SettingValue]
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# read from stdin if SettingValue is not defined
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{
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mountpoint -q "$CONFIG_DIR" && mount -o rw,remount "$CONFIG_DIR"
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[ "$USE_SEPERATE_CONFIG_PARTITION" = "1" ] && sudo "$ROOT_PERM_SCRIPT" remount_config rw
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if [ $# -gt 1 ]
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then echo -n "$2" > "$CONFIG_DIR/$1"
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else cat - >"$CONFIG_DIR/$1"
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fi
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mountpoint -q "$CONFIG_DIR" && mount -o ro,remount "$CONFIG_DIR"
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[ "$USE_SEPERATE_CONFIG_PARTITION" = "1" ] && sudo "$ROOT_PERM_SCRIPT" remount_config ro
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}
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@ -84,7 +78,7 @@ function config_get_value()
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{
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# use mounted config, if it exists - otherwise use defaults
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local conf_dir
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if is_config_mounted
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if is_config_active
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then conf_dir=$CONFIG_DIR
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else conf_dir=$CONFIG_DEFAULTS_DIR
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fi
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@ -112,14 +106,13 @@ function create_config()
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{
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local device=$1
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# create the new configuration filesystem if it is not static
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if is_config_mounted
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if is_config_active
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then log_msg "Using static configuration ..."
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else log_msg "Creating config filesystem ..."
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# filter output through 'tr' to replace tabs
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$MKFS_CONFIG "$device" | tr '\010' ' '
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# mount the config partition rw
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sudo "$ROOT_PERM_SCRIPT" create_config "$device"
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log_msg "Mounting config partition ..."
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mount "$device" "$CONFIG_DIR"
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sudo "$ROOT_PERM_SCRIPT" mount_config "$device"
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sudo "$ROOT_PERM_SCRIPT" remount_config rw
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fi
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# create a marker to recognize a cryptobox partition
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date -I >"$CONFIG_DIR/$CONFIG_MARKER"
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@ -127,7 +120,7 @@ function create_config()
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cp -a "$CONFIG_DEFAULTS_DIR/." "$CONFIG_DIR"
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log_msg "Copying temporary certificate file to config filesystem ..."
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# beware: the temp file should always be there - even after reboot - see "mount_config"
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# beware: the temp file should always be there - even after reboot - see "load_config"
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cp -p "$CERT_TEMP" "$CERT_FILE"
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log_msg "Setting inital values ..."
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@ -135,12 +128,6 @@ function create_config()
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config_set_value "ip" "$(get_current_ip)"
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# create database of readable names
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config_set_value "names.db" ""
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# reinitialise configuration
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log_msg "Unmounting config partition ..."
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umount_config
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log_msg "Reload configuration ..."
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mount_config
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}
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@ -148,30 +135,51 @@ function get_current_ip()
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# not necessarily the same as configured (necessary for validation)
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{
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# filter the output of ifconfig and remove trailing line break
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echo -n $(ifconfig $NET_IFACE | grep "inet" | cut -d ":" -f2 | cut -d " " -f1)
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echo -n $("$IFCONFIG" "$NET_IFACE" | grep "inet" | cut -d ":" -f2 | cut -d " " -f1)
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}
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function list_crypto_containers()
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function list_partitions_of_type()
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# parameter: { config | crypto | plaindata | unused }
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{
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local config=
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local crypto=
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local plaindata=
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local unused=
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for a in $ALL_PARTITIONS
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do "$CRYPTSETUP" isLuks "/dev/$a" 2>/dev/null && echo "/dev/$a"
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done
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}
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function list_unused_partitions()
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{
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for a in $ALL_PARTITIONS
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do "$CRYPTSETUP" isLuks "/dev/$a" 2>/dev/null || echo "/dev/$a"
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do if sudo "$ROOT_PERM_SCRIPT" is_crypto_partition "/dev/$a"
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then crypto="$crypto /dev/$a"
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elif sudo "$ROOT_PERM_SCRIPT" is_config_partition "/dev/$a"
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then config="$config /dev/$a"
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elif sudo "$ROOT_PERM_SCRIPT" is_plaindata_partition "/dev/$a"
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then plaindata="$plaindata /dev/$a"
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else unused="$unused /dev/$a"
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fi
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done
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case "$1" in
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config )
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echo "$config"
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;;
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crypto )
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echo "$crypto"
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;;
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plaindata )
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echo "$plaindata"
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;;
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unused )
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echo "$unused"
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;;
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* )
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errot_msg "wrong parameter ($1) for list_partition_types in $(basename $0)"
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;;
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esac | tr " " "\n" | grep -v '^$'
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}
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function get_crypto_uuid()
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# Parameter: DEVICE
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{
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"$CRYPTSETUP" luksUUID "$1"
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sudo "$ROOT_PERM_SCRIPT" get_device_name "$1"
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}
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@ -180,7 +188,7 @@ function get_crypto_name()
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# return the readable name of the crypto container, it it is already defined
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# if undefined - return the uuid
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{
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local uuid=$($CRYPTSETUP luksUUID $1)
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local uuid=$(get_crypto_uuid "$1")
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local dbname=$(config_get_value "names.db" | grep "^$uuid:" | cut -d ":" -f 2-)
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if [ -z "$dbname" ]
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then echo -n "$uuid"
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@ -190,9 +198,10 @@ function get_crypto_name()
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function set_crypto_name()
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# TODO: the implementation is quite ugly, but it works (tm)
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# Parameter: DEVICE NAME
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{
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local uuid=$($CRYPTSETUP luksUUID $1)
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local uuid=$(get_crypto_uuid "$1")
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# remove the old setting for this device and every possible entry with the same name
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(config_get_value 'names.db' | sed "/^$uuid:/d; /^[^:]*:$2$/d"; echo "$uuid:$2") | config_set_value 'names.db'
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}
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@ -208,53 +217,26 @@ function does_crypto_name_exist()
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function create_crypto()
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# Parameter: DEVICE NAME KEYFILE
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# keyfile is necessary, to allow background execution via 'at'
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# TODO: check if the keyfile is still necessary for sudo -b
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{
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local device=$1
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local name=$2
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local keyfile=$3
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# otherwise the web interface will hang
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# passphrase may be passed via command line
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log_msg "Creating crypto partition with the cipher $DEFAULT_CIPHER on $device"
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# the hash is ignored by luks
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# the iter-time specifies the time spent on PBKDF2 - one second is said to be sufficient
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# luksFormat floods the container with random noise automatically
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cat "$keyfile" | $CRYPTSETUP -c "$DEFAULT_CIPHER" luksFormat "$device"
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set_crypto_name "$device" "$name"
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local uuid=$(get_crypto_uuid "$device")
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# map the crypto container
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cat "$keyfile" | $CRYPTSETUP luksOpen "$device" "$uuid"
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local key=$(<"$keyfile")
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# remove the passphrase-file as soon as possible
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dd if=/dev/zero of="$keyfile" bs=512 count=1 2>/dev/null
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rm "$keyfile"
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# filter output through 'tr' to replace tabs
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$MKFS_DATA "$CRYPTMAPPER_DIR/$uuid" | tr '\0101' ' '
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log_msg "Creating crypto partition with the cipher $DEFAULT_CIPHER on $device"
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echo "$key" | sudo "$ROOT_PERM_SCRIPT" create_crypto "$device"
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# set user for samba
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# TODO: rename SAMBA_USER to something like FILE_USER
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mkdir -p "$MNT_PARENT/$name"
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mount "$CRYPTMAPPER_DIR/$uuid" "$MNT_PARENT/$name"
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chown $SAMBA_USER "$MNT_PARENT/$name"
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umount_crypto "$device"
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set_crypto_name "$device" "$name"
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}
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function config_mount_test()
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# Parameter: device
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{
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local device=$1
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local STATUS=0
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mount "${device}" "$CONFIG_DIR" &>/dev/null || true
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is_config_mounted && STATUS=1
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umount "$CONFIG_DIR" &>/dev/null || true
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# return code is the result of this expression
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test 1 -eq "$STATUS"
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}
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function is_config_mounted()
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function is_config_active()
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{
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test -f "$CONFIG_DIR/$CONFIG_MARKER"
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}
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@ -263,8 +245,8 @@ function is_config_mounted()
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function is_crypto_mounted()
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# Parameter: DEVICE
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{
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local uuid=$(get_crypto_uuid $1)
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test -e "$CRYPTMAPPER_DIR/$uuid"
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local name=$(get_crypto_uuid "$1")
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[ -n "$name" ] && mountpoint -q "$MNT_PARENT/$name"
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}
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@ -313,22 +295,17 @@ function get_available_disks()
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}
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function mount_config()
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function load_config()
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{
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# error if dynamic configuration is active
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# return if static configuration is active
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if is_config_mounted && mountpoint -q "$CONFIG_DIR"
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then error_msg 3 "configuration directory ($CONFIG_DIR) is already mounted!"
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else is_config_mounted && return
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fi
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is_config_active && [ "$USE_SEPERATE_CONFIG_PARTITION" != "1" ] && return
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# look for a configuration partition
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# modify all scan_devices to get regular expressions like "^hda[0-9]*$"
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local scan_regex=$(echo "SCAN_DEVICES" | tr " " "\n" | sed 's/^/^/; s/$/[0-9]*$/')
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echo "$ALL_PARTITIONS" | grep "$scan_regex" | while read part
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list_partitions_of_type config | head -1 | while read part
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do log_msg "Trying to load configuration from /dev/$part ..."
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if config_mount_test "/dev/$part"
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if sudo "$ROOT_PERM_SCRIPT" is_config_partition "/dev/$part"
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then log_msg "configuraton found on $part"
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mount "/dev/$part" "$CONFIG_DIR"
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sudo "$ROOT_PERM_SCRIPT" mount_config "/dev/$part"
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# copy certificate to /tmp in case of re-initialization
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# /tmp should be writable, so tmpfs has to be mounted before (/etc/rcS.d)
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cp "$CERT_FILE" "$CERT_TEMP"
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@ -342,10 +319,10 @@ function mount_config()
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function umount_config()
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{
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is_config_mounted || return
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is_config_active || return
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# only try to unmount, if it is not static (the config of a live-cd is always dynamic)
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if mountpoint -q "$CONFIG_DIR"
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then umount "$CONFIG_DIR"
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if [ "$USE_SEPERATE_CONFIG_PARTITION" = "1" ]
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then sudo "$ROOT_PERM_SCRIPT" umount_config
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else true
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fi
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}
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@ -357,21 +334,9 @@ function mount_crypto()
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local device=$1
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[ -z "$device" ] && error_msg 4 'No valid harddisk found!' && return 1
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is_crypto_mounted "$device" && echo "The crypto filesystem is already active!" && return
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local uuid=$(get_crypto_uuid "$device")
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local name=$(get_crypto_name "$device")
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# passphrase is read from stdin
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log_msg "Mounting crypto partition $name ($device)"
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$CRYPTSETUP luksOpen "$device" "$uuid"
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[ -e "$MNT_PARENT/$name" ] || mkdir -p "$MNT_PARENT/$name"
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if mount "$CRYPTMAPPER_DIR/$uuid" "$MNT_PARENT/$name"
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then true
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# log_msg "Mount succeeded - now starting samba ..."
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# /etc/init.d/samba start
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return 0
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else log_msg "Mount failed - removing the crypto device $uuid ..."
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$CRYPTSETUP luksClose "$uuid"
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return 1
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||||
fi
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log_msg "Mounting a crypto partition from $device"
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sudo "$ROOT_PERM_SCRIPT" mount "$device"
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||||
}
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||||
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@ -379,39 +344,17 @@ function umount_crypto()
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# Parameter: DEVICE
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{
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local device=$1
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||||
# do not break on error
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set +e
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||||
# TODO: do not stop samba - or do it just temporarily
|
||||
#if ps -e | grep -q " [sn]mbd$"
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||||
# then log_msg "Stopping samba ..."
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||||
# /etc/init.d/samba stop
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||||
# ps -e | grep -q " smbd$" && killall smbd
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||||
# ps -e | grep -q " nmbd$" && killall nmbd
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# ps -e | grep -q " smbd$" && killall -9 smbd
|
||||
# ps -e | grep -q " nmbd$" && killall -9 nmbd
|
||||
# fi
|
||||
local uuid=$(get_crypto_uuid $device)
|
||||
local name=$(get_crypto_name $device)
|
||||
if mountpoint -q "$MNT_PARENT/$name"
|
||||
then log_msg "Unmounting crypto partition ..."
|
||||
umount "$MNT_PARENT/$name"
|
||||
rmdir "$MNT_PARENT/$name"
|
||||
fi
|
||||
if [ -e "$CRYPTMAPPER_DIR/$uuid" ]
|
||||
then log_msg "Removing dev-mapper ..."
|
||||
$CRYPTSETUP luksClose "$uuid"
|
||||
fi
|
||||
set -e
|
||||
sudo "$ROOT_PERM_SCRIPT" umount "$uuid"
|
||||
}
|
||||
|
||||
|
||||
function box_purge()
|
||||
# removing just the first bytes from the harddisk should be enough
|
||||
{
|
||||
local device
|
||||
get_available_disks | while read a
|
||||
do log_msg "Purging $device ..."
|
||||
dd if=/dev/zero of=$device bs=1M count=1
|
||||
do log_msg "Purging $a ..."
|
||||
sudo "$ROOT_PERM_SCRIPT" trash_device "$a"
|
||||
log_msg " "
|
||||
done
|
||||
}
|
||||
|
|
@ -423,9 +366,10 @@ function init_cryptobox()
|
|||
local device=$(find_harddisk)
|
||||
[ -z "$device" ] && log_msg 'No valid harddisk found!' && return 1
|
||||
turn_off_all_crypto
|
||||
is_config_mounted && umount_config || true
|
||||
log_msg "Initializing config partition on $device ..."
|
||||
is_config_active && umount_config || true
|
||||
log_msg "Partitioning the device ($device) ..."
|
||||
create_partitions "$device"
|
||||
log_msg "Initializing config partition on ${device}1 ..."
|
||||
# TODO: this should not be hard-coded
|
||||
create_config "${device}1"
|
||||
}
|
||||
|
|
@ -463,7 +407,7 @@ case "$ACTION" in
|
|||
then conf_ip=$(config_get_value "ip")
|
||||
log_msg "Configuring $NET_IFACE for $conf_ip ..."
|
||||
echo "Configuring network interface for $NET_IFACE: $conf_ip"
|
||||
ifconfig $NET_IFACE "$conf_ip"
|
||||
"$IFCONFIG" "$NET_IFACE" "$conf_ip"
|
||||
fi
|
||||
if [ "${EXEC_FIREWALL_RULES:-0}" = 1 ]
|
||||
then log_msg "Starting the firewall ..."
|
||||
|
|
@ -492,15 +436,17 @@ case "$ACTION" in
|
|||
fi
|
||||
if [ "${SKIP_NETWORK_CONFIG:-1}" != 1 ]
|
||||
then log_msg "Shutting the network interface down ..."
|
||||
ifconfig "$NET_IFACE" down
|
||||
"$IFCONFIG" "$NET_IFACE" down
|
||||
fi
|
||||
;;
|
||||
services-up )
|
||||
# the mount point has to be writeable
|
||||
# this action is called as root - so we are allowed to umount
|
||||
mount -t tmpfs tmpfs "$MNT_PARENT"
|
||||
# is something special necessary?
|
||||
;;
|
||||
services-down )
|
||||
# this action is called as root - so we are allowed to umount
|
||||
umount "$MNT_PARENT"
|
||||
# TODO: we should not depend on samba and thttpd
|
||||
# /etc/init.d/samba stop || true
|
||||
|
|
@ -533,10 +479,10 @@ case "$ACTION" in
|
|||
create_crypto "$@"
|
||||
;;
|
||||
crypto-list )
|
||||
list_crypto_containers
|
||||
list_partitions_of_type crypto
|
||||
;;
|
||||
crypto-list-unused )
|
||||
list_unused_partitions
|
||||
list_partitions_of_type unused
|
||||
;;
|
||||
crypto-name )
|
||||
# Parameter: DEVICE
|
||||
|
|
@ -547,7 +493,7 @@ case "$ACTION" in
|
|||
is_crypto_mounted "$1"
|
||||
;;
|
||||
is_config_mounted )
|
||||
is_config_mounted
|
||||
is_config_active
|
||||
;;
|
||||
is_init_running )
|
||||
is_init_running
|
||||
|
|
@ -560,7 +506,7 @@ case "$ACTION" in
|
|||
# reconfigure the network interface to a new IP address
|
||||
# wait for 5 seconds to finish present http requests
|
||||
if [ "${SKIP_NETWORK_CONFIG:-1}" != 1 ]
|
||||
then echo -n "sleep 5; ifconfig $NET_IFACE $(config_get_value ip)" | at now
|
||||
then echo -n "sleep 5; sudo $ROOT_PERM_SCRIPT update_network" | at now
|
||||
fi
|
||||
;;
|
||||
get_available_disks )
|
||||
|
|
@ -579,7 +525,7 @@ case "$ACTION" in
|
|||
;;
|
||||
diskinfo )
|
||||
get_available_disks | while read a
|
||||
do "$SFDISK" -L -q -l "$a"
|
||||
do sudo "$ROOT_PERM_SCRIPT" diskinfo "$a"
|
||||
done
|
||||
;;
|
||||
box-purge )
|
||||
|
|
|
|||
|
|
@ -0,0 +1,315 @@
|
|||
#!/bin/sh
|
||||
#
|
||||
# Copyright (c) 02005 sense.lab <senselab@systemausfall.org>
|
||||
#
|
||||
# License: This script is distributed under the terms of version 2
|
||||
# of the GNU GPL. See the LICENSE file included with the package.
|
||||
#
|
||||
# $Id$
|
||||
#
|
||||
# this script is responsible for all dangerous actions, that require root privileges
|
||||
# every action should be checked at least TWICE a day for open holes :)
|
||||
# usually will get call via sudo
|
||||
#
|
||||
# called by:
|
||||
# - cbox-manage.sh
|
||||
#
|
||||
|
||||
set -eu
|
||||
|
||||
[ "$(id -u)" -ne 0 ] && echo "$(basename $0) - only root may call this script" >&2 && exit 100
|
||||
|
||||
# read the default setting file, if it exists
|
||||
[ -e /etc/default/cryptobox ] && . /etc/default/cryptobox
|
||||
|
||||
# set CONF_FILE to default value, if not configured in /etc/default/cryptobox
|
||||
CONF_FILE=${CONF_FILE:-/etc/cryptobox/cryptobox.conf}
|
||||
# parse config file
|
||||
. "$CONF_FILE"
|
||||
|
||||
|
||||
############ some useful functions ###############
|
||||
|
||||
# check if the given device is part of the SCAN_DEVICE list
|
||||
# every entry in SCAN_DEVICES is matched as "^/dev/${SCAN_DEVICE}[0-9]*$" against
|
||||
# the given device
|
||||
# other devices may not be touched
|
||||
function is_device_allowed()
|
||||
# parameter: device
|
||||
{
|
||||
for a in $SCAN_DEVICES
|
||||
do [[ "$1" =~ "^/dev/${a}[0-9]*$" ]] && return 0
|
||||
done
|
||||
return 1
|
||||
}
|
||||
|
||||
|
||||
function get_device_name()
|
||||
# return the uuid of the device
|
||||
# if there is no uuid, then the device name is "flattened" and returned
|
||||
# ignore volume-id as it may be non-unique
|
||||
{
|
||||
local UUID=
|
||||
# check for luksUUID or ext2/3-uuid
|
||||
if is_luks_device "$1"
|
||||
then UUID=$("$CRYPTSETUP" luksUUID "$1")
|
||||
else [ -n "$(which dumpe2fs)" ] && UUID=$(dumpe2fs -h "$1" 2>/dev/null | grep "UUID" | cut -d ":" -f 2 | sed "s/ *//g")
|
||||
fi
|
||||
# if there is no valid UUUD, then take the flattened device name
|
||||
is_uuid_valid "$UUID" || UUID=${1//\//_}
|
||||
echo "$UUID"
|
||||
}
|
||||
|
||||
|
||||
function is_uuid_valid()
|
||||
# every devmapper name should look like a UUID
|
||||
{
|
||||
local hex=[0-9a-f]
|
||||
[[ "$1" =~ "^$hex\{8\}-$hex\{4\}-$hex\{4\}-$hex\{4\}-$hex\{12\}$" ]]
|
||||
}
|
||||
|
||||
|
||||
function error_msg()
|
||||
# parameter ExitCode ErrorMessage
|
||||
{
|
||||
echo "CBOX-ERROR: [$(basename $0) - $ACTION] - $2" >&2
|
||||
exit $1
|
||||
}
|
||||
|
||||
|
||||
function partition_device()
|
||||
# parameter: device sfdisk_layout_setup
|
||||
# e.g.: /dev/hda "0,1,L \n,,L\n"
|
||||
{
|
||||
# TODO: allow different layouts
|
||||
# TODO: skip config partition if a configuration is already active
|
||||
# sfdisk -n doesn't actually write (for testing purpose)
|
||||
echo -e "$2" | "$SFDISK" -n "$1" && \
|
||||
echo -e "$2" | "$SFDISK" "$1"
|
||||
}
|
||||
|
||||
|
||||
function is_luks_device()
|
||||
# parameter: device
|
||||
{
|
||||
"$CRYPTSETUP" isLuks "$1"
|
||||
}
|
||||
|
||||
|
||||
################ main ####################
|
||||
|
||||
ACTION=unknown
|
||||
[ $# -gt 0 ] && ACTION=$1 && shift
|
||||
|
||||
|
||||
case "$ACTION" in
|
||||
partition_disk )
|
||||
[ $# -ne 2 ] && error_msg 1 "wrong number of parameters"
|
||||
is_device_allowed "$1" || \
|
||||
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
|
||||
partition_device "$1" "$2" || \
|
||||
error_msg 2 "failed to create new partition table on device $1"
|
||||
;;
|
||||
mount )
|
||||
# parameters: device
|
||||
# returns the relative name of the mointpoint for success
|
||||
[ $# -ne 1 ] && error_msg 1 "wrong number of parameters"
|
||||
is_device_allowed "$1" || \
|
||||
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
|
||||
name=$(get_device_name "$1")
|
||||
mountpoint -q "$MNT_PARENT/$name" && \
|
||||
error_msg 5 "a device with the same name ($name) is already mounted"
|
||||
mkdir -p "$MNT_PARENT/$name"
|
||||
if is_luks_device "$1"
|
||||
then "$CRYPTSETUP" luksOpen "$1" "$name" || \
|
||||
error_msg 6 "could not open encrypted device $1"
|
||||
if mount "$DEV_MAPPER_DIR/$name" "$MNT_PARENT/$name"
|
||||
then true
|
||||
else "$CRYPTSETUP" luksClose "$name" || true
|
||||
error_msg 7 "wrong password for $1 supplied"
|
||||
fi
|
||||
else mount "$1" "$MNT_PARENT/$name" || \
|
||||
error_msg 8 "invalid filesystem on device $1"
|
||||
fi
|
||||
# just in case, that there is no ext2/3 filesystem:
|
||||
# set uid option (will fail silently for ext2/3)
|
||||
mount -o remount,uid="$FILE_USER" "$MNT_PARENT/$name" 2>/dev/null || true
|
||||
# adapt top-level permission to current setup - again: may fail silently
|
||||
chown "$FILE_USER" "$MNT_PARENT/$name" 2>/dev/null || true
|
||||
true
|
||||
;;
|
||||
umount )
|
||||
#parameter: name (relative mountpoint)
|
||||
[ $# -ne 1 ] && error_msg 1 "wrong number of parameters"
|
||||
is_uuid_valid "$1" || [[ "$1" =~ "^[_a-z0-9]*$" ]] || \
|
||||
error_msg 4 "invalid UUID ($1)"
|
||||
mountpoint -q "$MNT_PARENT/$1" || \
|
||||
error_msg 9 "the device with the UUID ($1) is not mounted"
|
||||
# try to unmount - continue even on errors
|
||||
umount "$MNT_PARENT/$1" || \
|
||||
error_msg 0 "unmount of device $1 failed - device is busy"
|
||||
# remove (if necessary) the dev mapping
|
||||
[ -e "$DEV_MAPPER_DIR/$1" ] && "$CRYPTSETUP" luksClose "$1" || \
|
||||
error_msg 11 "could not remove the device mapper for device $1"
|
||||
# try to remove the mountpoint - a failure is not important
|
||||
rmdir "$MNT_PARENT/$1" || true
|
||||
# set exitcode
|
||||
mountpoint -q "$MNT_PARENT/$1" && exit 1
|
||||
exit 0
|
||||
;;
|
||||
create_crypto )
|
||||
# parameter: device
|
||||
# the passphrase is expected on stdin
|
||||
[ $# -ne 1 ] && error_msg 1 "wrong number of parameters"
|
||||
is_device_allowed "$1" || \
|
||||
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
|
||||
# read the passphrase from stdin
|
||||
key=$(cat -)
|
||||
# the iter-time is in milliseconds
|
||||
echo "$key" | \
|
||||
"$CRYPTSETUP" --cipher "$DEFAULT_CIPHER" --iter-time 50000 luksFormat "$1" || \
|
||||
error_msg 11 "failed to create the encrypted partition"
|
||||
name=$(get_device_name "$1")
|
||||
echo "$key" | "$CRYPTSETUP" luksOpen "$1" "$name" || \
|
||||
error_msg 12 "failed to open the encrypted partition"
|
||||
# silent output from mkfs.ext3
|
||||
"$MKFS_DATA" -q "$DEV_MAPPER_DIR/$name" || \
|
||||
error_msg 13 "failed to create the encrypted filesystem"
|
||||
"$CRYPTSETUP" luksClose "$name" || \
|
||||
error_msg 14 "failed to close the encrypted mapped device"
|
||||
;;
|
||||
get_device_name )
|
||||
# parameter: device
|
||||
[ $# -ne 1 ] && error_msg 1 "wrong number of parameters"
|
||||
is_device_allowed "$1" || \
|
||||
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
|
||||
get_device_name "$1"
|
||||
;;
|
||||
mount_config )
|
||||
# parameter: device
|
||||
[ $# -ne 1 ] && error_msg 1 "wrong number of parameters"
|
||||
[ "$USE_SEPERATE_CONFIG_DIR" != "1" ] && \
|
||||
error_msg 19 "I am configured to work without a seperate config partition (see $CONF_FILE)"
|
||||
is_device_allowed "$1" || \
|
||||
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
|
||||
mountpoint -q "$CONFIG_DIR" && \
|
||||
error_msg 0 "the configuration partition is already mounted"
|
||||
mount "$1" "$CONFIG_DIR" || \
|
||||
error_msg 16 "failed to mount configuration partition"
|
||||
# chown to fix permissions - may fail for non-ext2/3 filesystems
|
||||
chown -R "$WEB_USER" "$CONFIG_DIR" || true
|
||||
mount -o remount,ro "$CONFIG_DIR" || \
|
||||
error_msg 18 "failed to remount configuration partition"
|
||||
true
|
||||
;;
|
||||
remount_config )
|
||||
# parameter: { ro | rw }
|
||||
[ $# -ne 1 ] && error_msg 1 "wrong number of parameters"
|
||||
[ "$USE_SEPERATE_CONFIG_DIR" != "1" ] && \
|
||||
error_msg 19 "I am configured to work without a seperate config partition (see $CONF_FILE)"
|
||||
[[ "$1" =~ "^r[ow]$" ]] || error_msg 17 "only 'rw' and 'ro' are allowed"
|
||||
mount -o "remount,$1" "$CONFIG_DIR" || \
|
||||
error_msg 18 "failed to remount configuration partition"
|
||||
true
|
||||
;;
|
||||
umount_config )
|
||||
# no parameters
|
||||
[ $# -ne 0 ] && error_msg 1 "wrong number of parameters"
|
||||
[ "$USE_SEPERATE_CONFIG_DIR" != "1" ] && \
|
||||
error_msg 19 "I am configured to work without a seperate config partition (see $CONF_FILE)"
|
||||
mountpoint -q "$CONFIG_DIR" && umount "$CONFIG_DIR" || \
|
||||
error_msg 18 "failed to unmount configuration partition"
|
||||
;;
|
||||
is_config_partition )
|
||||
# parameter: device
|
||||
# returns exitcode 0 if the device contains a configuration
|
||||
[ $# -ne 1 ] && error_msg 1 "wrong number of parameters"
|
||||
[ "$USE_SEPERATE_CONFIG_DIR" != "1" ] && \
|
||||
error_msg 19 "I am configured to work without a seperate config partition (see $CONF_FILE)"
|
||||
is_device_allowed "$1" || \
|
||||
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
|
||||
is_config=0
|
||||
tmp_dir=/tmp/$(basename $0)-$$-mnt
|
||||
mkdir -p "$tmp_dir"
|
||||
# error means "no config partition"
|
||||
if mount "$1" "$CONFIG_DIR"
|
||||
then [ -e "$CONFIG_DIR/$CONFIG_MARKER" ] && is_config=1
|
||||
umount "$CONFIG_DIR" || \
|
||||
error_msg 14 "unable to unmount configation partition after probing"
|
||||
fi
|
||||
rmdir "$tmp_dir" || true
|
||||
# return 0 if $device is a config partition
|
||||
[ "$is_config" -eq 1 ] && exit 0
|
||||
exit 1
|
||||
;;
|
||||
is_crypto_partition )
|
||||
# parameter: device
|
||||
# returns exitcode 0 if the device contains a luks header
|
||||
[ $# -ne 1 ] && error_msg 1 "wrong number of parameters"
|
||||
is_device_allowed "$1" || \
|
||||
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
|
||||
is_luks_device "$1"
|
||||
;;
|
||||
is_data_partition )
|
||||
# parameter: device
|
||||
# returns exitcode 0 if the device contains a readable filesystem
|
||||
[ $# -ne 1 ] && error_msg 1 "wrong number of parameters"
|
||||
is_device_allowed "$1" || \
|
||||
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
|
||||
status=0
|
||||
tmp_dir=/tmp/$(basename $0)-$$-mnt
|
||||
mkdir -p "$tmp_dir"
|
||||
if mount "$1" "$tmp_dir"
|
||||
then [ ! -e "$tmp_dir/$CONFIG_MARKER" ] && status=1
|
||||
umount "$tmp_dir"
|
||||
fi
|
||||
rmdir "$tmp_dir" || true
|
||||
[ "$status" -eq 1 ] && exit 0
|
||||
exit 1
|
||||
;;
|
||||
trash_device )
|
||||
# parameter: device
|
||||
[ $# -ne 1 ] && error_msg 1 "wrong number of parameters"
|
||||
is_device_allowed "$1" || \
|
||||
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
|
||||
dd if=/dev/urandom of="$1" bs=512 count=1 2>/dev/null
|
||||
;;
|
||||
diskinfo )
|
||||
# parameter: device
|
||||
[ $# -ne 1 ] && error_msg 1 "wrong number of parameters"
|
||||
is_device_allowed "$1" || \
|
||||
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
|
||||
"$SFDISK" -L -q -l "$1"
|
||||
;;
|
||||
update_network )
|
||||
# parameter: none
|
||||
ip=
|
||||
# TODO: can we avoid to hard-code the filename ($CONFIG_DIR/ip) here?
|
||||
[ -e "$CONFIG_DIR/ip" ] && ip=$(<"$CONFIG_DIR/ip")
|
||||
[ -n "$z" ] && ifconfig "$NET_IFACE" "$ip"
|
||||
;;
|
||||
* )
|
||||
echo "Syntax: $(basename $0) ACTION PARAMETERS"
|
||||
echo ' partition_disk $device $disk_layout'
|
||||
echo ' get_device_name $device'
|
||||
echo ' create_crypto $device'
|
||||
echo ' mount $device'
|
||||
echo ' umount $name'
|
||||
echo ' create_config $device'
|
||||
echo ' mount_config $device'
|
||||
echo ' remount_config { ro | rw }'
|
||||
echo ' umount_config'
|
||||
echo ' is_config_partition $device'
|
||||
echo ' is_plaindata_partition $device'
|
||||
echo ' is_crypto_partition $device'
|
||||
echo ' trash_device $device'
|
||||
echo ' diskinfo $device'
|
||||
echo ' update_network'
|
||||
echo ' help'
|
||||
echo
|
||||
[ "$ACTION" == "help" ] && exit 0
|
||||
# return error for any unknown/unspecified action
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
|
||||
|
|
@ -1,10 +1,11 @@
|
|||
CryptoBox for Debian
|
||||
CryptoBox for Debian - installation notes
|
||||
|
||||
1) additional dependencies
|
||||
you need the following packages, which are not (yet) part of the main debian distribution:
|
||||
* cryptsetup_luks - http://luks.endorphin.org/masses
|
||||
* clearsilver for perl (>=0.9.14) - http://www.clearsilver.net/downloads/
|
||||
|
||||
|
||||
2) cgi-bin
|
||||
If you do not use thttpd as your webserver, you should add the cgi-bin path to
|
||||
your script directory. For apache this would be something like the following:
|
||||
|
|
@ -12,5 +13,6 @@ your script directory. For apache this would be something like the following:
|
|||
Alias /cryptobox-misc /var/www/cryptobox-misc
|
||||
ScriptAlias /cryptobox /usr/lib/cgi-bin/cryptobox.pl
|
||||
|
||||
|
||||
-- Lars Kruse <devel@sumpfralle.de> Sun, 4 Dec 2005 21:05:45 +0100
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1 @@
|
|||
DO NOT REMOVE THIS FILE - it is a placeholder for the debian installer
|
||||
|
|
@ -0,0 +1 @@
|
|||
DO NOT REMOVE THIS FILE - it is a placeholder for the debian installer
|
||||
Loading…
Reference in New Issue