implemented root actions for plugins

finished network and date plugins
renamed old 'bin' direcory
This commit is contained in:
lars 2006-09-13 10:38:05 +00:00
parent 2b4180a83b
commit e80b8874ff
13 changed files with 211 additions and 23 deletions

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# Makefile to compile the binary suid-wrapper for cryptobox
#
# LIB_DIR should be defined in the higher level Makefile
#
HEADER_FILE = cryptobox_wrapper.h
SRC_FILE = cryptobox_wrapper.c
CGI_SUID_FILE = cryptobox_cgi_wrapper
ROOT_SUID_FILE = cryptobox_root_wrapper
CGI_FILENAME = cryptobox.pl
ROOT_SCRIPT_FILENAME = cbox-root-actions.sh
# fall back to default, if not overwritten
LIB_DIR = /usr/local/lib/cryptobox
# _always_ recompile (in case of a changed LIB_DIR)
.PHONY: build clean $(CGI_SUID_FILE) $(ROOT_SUID_FILE)
build: $(CGI_SUID_FILE) $(ROOT_SUID_FILE)
$(CGI_SUID_FILE): $(SRC_FILE)
@echo '#define EXEC_PATH "$(LIB_DIR)/$(CGI_FILENAME)"' >$(HEADER_FILE)
$(CC) -o $(CGI_SUID_FILE) $(SRC_FILE)
-rm $(HEADER_FILE)
$(ROOT_SUID_FILE): $(SRC_FILE)
@echo '#define EXEC_PATH "$(LIB_DIR)/$(ROOT_SCRIPT_FILENAME)"' >$(HEADER_FILE)
$(CC) -o $(ROOT_SUID_FILE) $(SRC_FILE)
-rm $(HEADER_FILE)
clean:
-rm -f $(CGI_SUID_FILE) $(ROOT_SUID_FILE) $(HEADER_FILE)

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#!/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 does EVERYTHING
# all other scripts are only frontends :)
#
# called by:
# - some rc-scripts
# - the web frontend cgi
#
# TODO: check permissions and owners of config files, directories and scripts before
# running cbox-root-actions.sh
set -eu
# default location of config file
CONF_FILE=/etc/cryptobox/cryptobox.conf
LIB_DIR=$(dirname "$0")
# to determine a nice default partition name
DEVICE_NAME_PREFIX="Disk #"
# read the default setting file, if it exists
test -e /etc/default/cryptobox && . /etc/default/cryptobox
test ! -e "$CONF_FILE" && echo "Could not find the configuration file: $CONF_FILE" >&2 && exit 1
# parse config file
. "$CONF_FILE"
test ! -e "$CONF_FILE" && echo "Could not find the distribution specific configuration file: $CONF_FILE" >&2 && exit 1
# parse the distribution specific file
. "$DISTRIBUTION_CONF"
# check for writable log file
test -w "$LOG_FILE" || LOG_FILE=/tmp/$(basename "$LOG_FILE")
# retrieve configuration directory
CONFIG_DIR="$(getent passwd $CRYPTOBOX_USER | cut -d ':' -f 6)/config"
CONFIG_MARKER=cryptobox.marker
## configuration
ROOT_PERM_SCRIPT="$LIB_DIR/cryptobox_root_wrapper"
# ROOT_PERM_SCRIPT needs the MNT_PARENT setting
export MNT_PARENT="$(cd ~; pwd)/mnt"
######## stuff ##########
# all partitions with a trailing number
ALL_PARTITIONS=$(cat /proc/partitions | sed '1,2d; s/ */ /g; s/^ *//' | cut -d " " -f 4 | grep '[0-9]$')
#########################
function log_msg()
{
# the log file is (maybe) not writable during boot - try
# before writing ...
test -w "$LOG_FILE" || return 0
echo >>"$LOG_FILE"
echo "##### `date` #####" >>"$LOG_FILE"
echo "$1" >>"$LOG_FILE"
}
function error_msg()
# parameters: ExitCode ErrorMessage
{
local all=$@
test $# -ne 2 && error_msg 1 "*** invalid call of error_msg *** $all"
echo "[`date`] - $2" | tee -a "$LOG_FILE" >&2
# print the execution stack - not usable with busybox
# caller | sed 's/^/\t/' >&2
exit "$1"
}
# Parameter: device
function is_device_allowed() {
# check for invalid characters and exit if one is found
local device=$(echo "$1" | sed 's#[^a-zA-Z0-9_\-\./]##g')
test "$1" = "$device" || return 1
# remove leading "/dev/"
device=$(echo "$device" | sed 's#^/dev/##')
# return for empty name
test -z "$device" && return 1
for a in $ALL_PARTITIONS
do echo "$device" | grep -q "^$a.*" && return 0
done
# no matching device found - exit with error
return 1
}
function config_set_value()
# parameters: SettingName [SettingValue]
# read from stdin if SettingValue is not defined
{
if test $# -gt 1
then echo "$2" > "$CONFIG_DIR/$1"
else cat - >"$CONFIG_DIR/$1"
fi
}
function config_get_value()
# parameters: SettingName
{
# use mounted config, if it exists - otherwise use defaults
local conf_dir
test -z "$1" && error_msg 1 "empty setting name"
# check for existence - maybe use default values (even for old
# releases that did not contain this setting)
if test -e "$CONFIG_DIR/$1"
then cat "$CONFIG_DIR/$1"
elif test -e "$CONFIG_DEFAULTS_DIR/$1"
then cat "$CONFIG_DEFAULTS_DIR/$1"
else case "$1" in
# you may place default values for older versions here
# for compatibility
* )
error_msg 2 "unknown configuration value ($1)"
;;
esac
fi
return 0
}
function list_partitions_of_type()
# parameter: { config | crypto | plaindata | unused }
{
local config=
local crypto=
local plaindata=
local unused=
for a in $ALL_PARTITIONS
do if "$ROOT_PERM_SCRIPT" is_crypto_partition "/dev/$a"
then crypto="$crypto /dev/$a"
elif "$ROOT_PERM_SCRIPT" is_config_partition "/dev/$a"
then config="$config /dev/$a"
elif "$ROOT_PERM_SCRIPT" is_plaindata_partition "/dev/$a"
then plaindata="$plaindata /dev/$a"
else unused="$unused /dev/$a"
fi
done
case "$1" in
config )
echo "$config"
;;
crypto )
echo "$crypto"
;;
plaindata )
echo "$plaindata"
;;
unused )
echo "$unused"
;;
* )
error_msg 11 "wrong parameter ($1) for list_partition_types in $(basename $0)"
;;
esac | tr " " "\n" | grep -v '^$'
return 0
}
# Parameter: DEVICE
function get_device_mnt_name() {
"$ROOT_PERM_SCRIPT" get_device_mnt_name "$1"
}
# Parameter: DEVICE
function get_device_uuid() {
"$ROOT_PERM_SCRIPT" get_device_uuid "$1"
}
# Parameter: DEVICE
# return the readable name of the crypto container, if it is already defined
# if undefined - return the uuid
function get_device_name() {
local uuid=$(get_device_uuid "$1")
local dbname=$(config_get_value "names.db" | grep "^$uuid:" | cut -d ":" -f 2-)
# return dbname if it exists
test -n "$dbname" && echo "$dbname" && return 0
# find a nice name for the new partition
local counter=1
local test_name
local test_uuid
local test_result
# try to find a name with the defined "prefix" followed by a number ...
while true
do test_name="$DEVICE_NAME_PREFIX$counter"
if config_get_value "names.db" | grep -q ":$test_name$"
then counter=$((counter+1))
else # save it for next time
set_device_name "$1" "$test_name"
echo "$test_name"
return 0
fi
done
}
function set_device_name()
# TODO: the implementation is quite ugly, but it works (tm)
# Parameter: DEVICE NAME
{
local uuid=$(get_device_uuid "$1")
# remove the old setting for this device and every possible entry with the same name
local new_config=$(config_get_value 'names.db' | sed "/^$uuid:/d; /^[^:]*:$2$/d"; echo "$uuid:$2")
echo "$new_config" | config_set_value "names.db"
}
function does_crypto_name_exist()
# Parameter: NAME
{
config_get_value 'names.db' | grep -q "^[^:]*:$1$"
}
function create_crypto()
# Parameter: DEVICE NAME KEYFILE
# keyfile is necessary, to allow background execution via 'at'
{
local device=$1
local name=$2
local keyfile=$3
# otherwise the web interface will hang
# passphrase may be passed via command line
local key=$(<"$keyfile")
# remove the passphrase-file as soon as possible
dd if=/dev/zero of="$keyfile" bs=512 count=1 2>/dev/null
rm "$keyfile"
log_msg "Creating crypto partition with the cipher $DEFAULT_CIPHER on $device"
echo "$key" | "$ROOT_PERM_SCRIPT" create_crypto "$device"
set_crypto_name "$device" "$name"
}
function is_config_active() {
test -f "$CONFIG_DIR/$CONFIG_MARKER"
}
# Parameter: DEVICE
function is_mounted() {
local name=$(get_device_mnt_name "$1")
test -n "$name" && mountpoint -q "$MNT_PARENT/$name"
}
# Parameter: DEVICE
function is_plain() {
"$ROOT_PERM_SCRIPT" is_plain_partition "$1"
}
# Parameter: DEVICE
function is_encrypted() {
"$ROOT_PERM_SCRIPT" is_crypto_partition "$1"
}
# list which allowed disks are at the moment connected with the cbox
function get_available_disks() {
for scan in $SCAN_DEVICES
do for avail in $ALL_PARTITIONS
do echo "$avail" | grep -q "^$scan[^/]*" && echo "/dev/$avail"
done
done
return 0
}
# Parameter: DEVICE
function mount_crypto() {
local device=$1
test -z "$device" && error_msg 4 'No valid harddisk found!'
is_mounted "$device" && echo "The crypto filesystem is already active!" && return
# passphrase is read from stdin
log_msg "Mounting a crypto partition from $device"
"$ROOT_PERM_SCRIPT" mount "$device" >>"$LOG_FILE" 2>&1
}
function umount_partition() {
# Parameter: device
local container=$(get_device_name "$1")
"$ROOT_PERM_SCRIPT" umount "$1"
}
function box_purge()
# removing just the first bytes from the harddisk should be enough
# every harddisk will be overriden!
# this feature is only useful for validation
{
# TODO: not ALL harddisks, please!
get_available_disks | while read a
do log_msg "Purging $a ..."
"$ROOT_PERM_SCRIPT" trash_device "$a"
done
}
function turn_off_all_containers() {
# TODO - needs to be implemented
return 0
}
### main ###
# set PATH because thttpd removes /sbin and /usr/sbin for cgis
export PATH=/usr/sbin:/usr/bin:/sbin:/bin
ACTION=help
test $# -gt 0 && ACTION=$1 && shift
case "$ACTION" in
crypto-up )
test $# -ne 1 && error_msg 10 "invalid number of parameters for 'crypto-up'"
is_device_allowed "$1" || error_msg 12 "invalid device: $1"
mount_crypto "$1"
;;
crypto-down )
test $# -ne 1 && error_msg 10 "invalid number of parameters for 'crypto-down'"
is_device_allowed "$1" || error_msg 12 "invalid device: $1"
umount_partition "$1"
;;
init )
init_cryptobox </dev/null >>"$LOG_FILE" 2>&1
;;
list_container )
test $# -ne 1 && error_msg 10 "invalid number of parameters for 'list_container'"
case "$1" in
config | unused | plaindata | crypto )
list_partitions_of_type "$1"
;;
* )
return 1
;;
esac
return 0
;;
get_device_name )
# Parameter: DEVICE
test $# -ne 1 && error_msg 10 "invalid number of parameters for 'get_device_name'"
is_device_allowed "$1" || error_msg 12 "invalid device: $1"
get_device_name "$1"
;;
set_device_name )
# Parameter: DEVICE NAME
test $# -ne 2 && error_msg 10 "invalid number of parameters for 'set_device_name'"
is_device_allowed "$1" || error_msg 12 "invalid device: $1"
set_device_name "$1" "$2"
;;
device_init )
# Parameter: DEVICE [KEYFILE]
test $# -lt 1 && error_msg 10 "invalid number of parameters for 'device_init' ($@)"
test $# -gt 2 && error_msg 10 "invalid number of parameters for 'device_init' ($@)"
if test $# -eq 2
then test -z "$2" -o ! -e "$2" && error_msg 11 "invalid keyfile ($2) given for 'device_init'"
fi
is_device_allowed "$1" || error_msg 12 "invalid device: $1"
if test $# -eq 2
then "$ROOT_PERM_SCRIPT" create_crypto "$1" "$2"
else "$ROOT_PERM_SCRIPT" create_plain "$1"
fi
true
;;
is_mounted )
test $# -ne 1 && error_msg 10 "invalid number of parameters for 'is_mounted'"
is_device_allowed "$1" || error_msg 12 "invalid device: $1"
is_mounted "$1"
;;
is_encrypted )
test $# -ne 1 && error_msg 10 "invalid number of parameters for 'is_encrypted'"
is_device_allowed "$1" || error_msg 12 "invalid device: $1"
is_encrypted "$1"
;;
is_plain )
test $# -ne 1 && error_msg 10 "invalid number of parameters for 'is_plain'"
is_device_allowed "$1" || error_msg 12 "invalid device: $1"
is_plain "$1"
;;
check_config)
is_config_active
;;
get_available_disks )
get_available_disks
;;
set_config )
test $# -ne 2 && error_msg 7 "'set_config' requires two parameters"
config_set_value "$1" "$2"
;;
get_config )
test $# -ne 1 && error_msg 6 "'get_config' requires exactly one parameter"
config_get_value "$1"
;;
get_capacity_info )
test $# -ne 1 && error_msg 6 "'get_capacity_info' requires exactly one parameter"
is_device_allowed "$1" || error_msg 12 "invalid device: $1"
is_mounted "$1" || error_msg 13 "the device is not mounted: $1"
name=$(get_device_mnt_name "$1")
df -h "$MNT_PARENT/$name" | tail -1
;;
diskinfo )
get_available_disks | while read a
do "$ROOT_PERM_SCRIPT" diskinfo "$a"
done 2>/dev/null
;;
box-purge )
log_msg "Cleaning the CryptoBox ..."
turn_off_all_containers
"$0" config-down
box_purge >>"$LOG_FILE" 2>&1
;;
poweroff )
log_msg "Shutting down the Cryptobox ..."
turn_off_all_containers
"$ROOT_PERM_SCRIPT" poweroff
;;
reboot )
log_msg "Rebooting the Cryptobox ..."
turn_off_all_containers
"$ROOT_PERM_SCRIPT" reboot
;;
umount_all )
log_msg "Unmounting all volumes ..."
turn_off_all_containers
;;
* )
echo "[$(basename $0)] - unknown action: $ACTION" >&2
echo "Syntax: $(basename $0) ACTION [PARAMS]"
echo " crypto-up - mount crypto partition"
echo " crypto-down - unmount crypto partition"
echo " crypto-create - a wrapper for 'crypto-create-bg'"
echo " crypto-create-bg - create encrypted blockdevice and run mkfs"
echo " is_mounted - check, if crypto partition is mounted"
echo " check_config - check, if the configuration is usable"
echo " get_available_disks - shows all accessible disks"
echo " get_current_ip - get the current IP of the network interface"
echo " set_config NAME VALUE - change a configuration setting"
echo " get_config NAME - retrieve a configuration setting"
echo " get_device_name DEVICE - retrieve the human readable name of a partition"
echo " set_device_name DEVICE - set the human readable name of a partition"
echo " device_init DEVICE KEYFILE - initialize the filesystem of a partition (the keyfile just contains the passphrase)"
echo " get_capacity_info - print the output of 'df' for the (mounted) partition"
echo " diskinfo - show the partition table of the harddisk"
echo " box-purge - destroy the partition tables of all harddisks (delete everything)"
echo " poweroff - turn off the computer"
echo " reboot - reboot the computer"
echo
;;
esac
exit 0

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#!/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
LIB_DIR=$(dirname "$0")
LIB_DIR=$(cd "$LIB_DIR"; pwd)
test "$(id -u)" -ne 0 && echo "$(basename $0) - only root may call this script" >&2 && exit 100
# read the default setting file, if it exists
test -e /etc/default/cryptobox && . /etc/default/cryptobox
# set CONF_FILE to default value, if not configured in /etc/default/cryptobox
CONF_FILE=${CONF_FILE:-/etc/cryptobox/cryptobox.conf}
# parse config file
. "$CONF_FILE"
# parse distribution specific file
. "$DISTRIBUTION_CONF"
CB_SCRIPT="$LIB_DIR/cbox-manage.sh"
CONFIG_MARKER=cryptobox.marker
############ some useful functions ###############
# check if the given device is part of the SCAN_DEVICE list
# every entry in SCAN_DEVICES is matched as "^/dev/${SCAN_DEVICE}[^/]*$" against
# the given device
# other devices may not be touched
function is_device_allowed()
# parameter: device
{
for a in $SCAN_DEVICES
do echo "$1" | grep -q "^/dev/${a}[^/]*$" && return 0
done
return 1
}
# return the uuid of the partition (if possible)
# this works at least for luks, ext2/3 and vfat partitions
function get_device_uuid() {
local UUID
# check for luksUUID or ext2/3-uuid
if is_luks_device "$1"
then UUID=$("$CRYPTSETUP" luksUUID "$1")
else test -x "$BLKID" && UUID=$("$BLKID" -s UUID -o value -c /dev/null -w /dev/null "$1" 2>/dev/null)
fi
if test -z "$UUID"
then get_device_flat_name "$1"
else echo "$UUID"
fi
return 0
}
# the device name is "flattened"
function get_device_flat_name() {
echo "$1" | sed 's#/#_#g'
}
# the basename of the mountpoint for this device - should be somehow human_readable
function get_device_mnt_name() {
"$CB_SCRIPT" get_device_name "$1"
}
# every devmapper name should look like a UUID
function is_uuid_valid() {
local hex=[0-9a-f]
echo "$1" | grep -q "^$hex\{8\}-$hex\{4\}-$hex\{4\}-$hex\{4\}-$hex\{12\}$"
}
# parameter ExitCode ErrorMessage
function error_msg() {
echo "CBOX-ERROR: [$(basename $0) - $ACTION] - $2" >&2
exit $1
}
# parameter: device sfdisk_layout_setup
# e.g.: /dev/hda "0,1,L \n,,L\n"
function partition_device() {
# TODO: allow different layouts
# TODO: skip config partition if a configuration is already active
# sfdisk -n doesn't actually write (for testing purpose)
if echo -e "$2" | "$SFDISK" -n "$1"
then echo -e "$2" | "$SFDISK" "$1" || return 1
else return 2
fi
true
}
function is_luks_device()
# parameter: device
{
"$CRYPTSETUP" isLuks "$1" 2>/dev/null
}
################ main ####################
ACTION=unknown
test $# -gt 0 && ACTION=$1 && shift
case "$ACTION" in
partition_disk )
test $# -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
test $# -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 $CONF_FILE)"
mnt_name=$(get_device_mnt_name "$1")
mountpoint -q "$MNT_PARENT/$mnt_name" && \
error_msg 5 "a device with the same name ($mnt_name) is already mounted"
mkdir -p "$MNT_PARENT/$mnt_name"
if is_luks_device "$1"
then "$CRYPTSETUP" luksOpen "$1" "$mnt_name" || \
error_msg 6 "could not open encrypted device $1"
if mount "$DEV_MAPPER_DIR/$mnt_name" "$MNT_PARENT/$mnt_name"
then true
else "$CRYPTSETUP" luksClose "$mnt_name" || true
error_msg 7 "wrong password for $1 supplied"
fi
else mount "$1" "$MNT_PARENT/$mnt_name" || \
error_msg 8 "invalid filesystem on device $1"
fi
# just in case, that there is no ext2/3 filesystem:
# set uid option (will fail silently for ext2/3)
# TODO: there is no FILE_USER setting anymore - do we still need it?
#mount -o remount,uid="$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: device
test $# -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 $CONF_FILE)"
mnt_name=$(get_device_mnt_name "$1")
mountpoint -q "$MNT_PARENT/$mnt_name" || \
error_msg 9 "the device ($1) is not mounted as '$mnt_name'"
# try to unmount - do it in lazy mode
umount -l "$MNT_PARENT/$mnt_name"
# TODO: check, what happens, if there are open files - does the device gets mapping removed?
# remove (if necessary) the device mapping
if test -e "$DEV_MAPPER_DIR/$mnt_name"
then "$CRYPTSETUP" luksClose "$mnt_name" || \
error_msg 11 "could not remove the device mapper ($mnt_name) for device $1"
fi
# try to remove the mountpoint - a failure is not important
rmdir "$MNT_PARENT/$mnt_name" || true
# set exitcode
mountpoint -q "$MNT_PARENT/$mnt_name" && exit 1
true
;;
create_crypto )
# parameter: device keyfile
test $# -ne 2 && error_msg 1 "wrong number of parameters"
keyfile=$2
test -e "$keyfile" || error_msg 2 "keyfile ($keyfile) not found"
is_device_allowed "$1" || \
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
# read the passphrase from stdin
# the iter-time is in milliseconds - keep it low for fast mounting
cat "$keyfile" | \
"$CRYPTSETUP" --cipher "$DEFAULT_CIPHER" --iter-time 2000 --batch-mode luksFormat "$1" || \
error_msg 11 "failed to create the encrypted partition"
name=$(get_device_mnt_name "$1")
cat "$keyfile" | "$CRYPTSETUP" --batch-mode luksOpen "$1" "$name" || \
error_msg 12 "failed to open the encrypted partition"
# trash the passphrase in keyfile
echo "0123456789abcdefghijklmnopqrstuvwxyz" > "$keyfile"
# the disk cache surely prevents the previous line from being written, but we do it anyway ...
echo "zyxwvutsrqponmlkjihgfedcba9876543210" > "$keyfile"
rm "$keyfile"
# complete in background
(
"$MKFS_DATA" "$DEV_MAPPER_DIR/$name" || \
error_msg 13 "failed to create the encrypted filesystem"
"$CRYPTSETUP" --batch-mode luksClose "$name" || \
error_msg 14 "failed to close the encrypted mapped device"
) </dev/null >/dev/null 2>/dev/null &
true
;;
create_plain )
# parameter: device
test $# -ne 1 && error_msg 1 "wrong number of parameters for 'create_plain'"
is_device_allowed "$1" || \
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
# complete in background
(
"$MKFS_DATA" "$1" || \
error_msg 15 "failed to create the plaintext filesystem"
) </dev/null >/dev/null 2>/dev/null &
true
;;
get_device_mnt_name )
# parameter: device
test $# -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_mnt_name "$1"
;;
get_device_uuid )
# parameter: device
test $# -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_uuid "$1"
;;
is_config_partition )
# parameter: device
# returns exitcode 0 if the device contains a configuration
test $# -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 $CONF_FILE)"
is_config=0
tmp_dir=/tmp/$(basename $0)-$$-mnt
mkdir -p "$tmp_dir"
# error means "no config partition"
if mount "$1" "$CONFIG_DIR"
then test -e "$CONFIG_DIR/$CONFIG_MARKER" && is_config=1
umount "$CONFIG_DIR" || \
error_msg 14 "unable to unmount configation partition after probing"
fi
rmdir "$tmp_dir" || true
# return 0 if $device is a config partition
test "$is_config" -eq 1 && exit 0
exit 1
;;
is_crypto_partition )
# parameter: device
# returns exitcode 0 if the device contains a luks header
test $# -ne 1 && error_msg 1 "wrong number of parameters"
is_device_allowed "$1" || \
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
is_luks_device "$1"
;;
is_plain_partition )
# parameter: device
# returns exitcode 0 if the device contains a readable filesystem
test $# -ne 1 && error_msg 1 "wrong number of parameters"
is_device_allowed "$1" || \
error_msg 3 "this device ($1) is not listed in SCAN_DEVICES (see $CONF_FILE)"
status=0
tmp_dir=/tmp/$(basename $0)-$$-mnt
mkdir -p "$tmp_dir"
if mount "$1" "$tmp_dir" >/dev/null 2>/dev/null
then test ! -e "$tmp_dir/$CONFIG_MARKER" && status=1
umount "$tmp_dir"
fi
rmdir "$tmp_dir" || true
test "$status" -eq 1 && exit 0
exit 1
;;
trash_device )
# parameter: device
test $# -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
test $# -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?
test -e "$CONFIG_DIR/ip" && ip=$(<"$CONFIG_DIR/ip")
test -n "$z" && ifconfig "$NET_IFACE" "$ip"
;;
poweroff )
# TODO: check configuration setting before
"$POWEROFF"
;;
reboot )
# TODO: check configuration setting before
"$REBOOT"
;;
* )
echo "[$(basename $0)] - unknown action: $ACTION" >&2
echo "Syntax: $(basename $0) ACTION PARAMETERS"
echo ' partition_disk $device $disk_layout'
echo ' get_device_name $device'
echo ' get_device_uuid $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_plain_partition $device'
echo ' is_crypto_partition $device'
echo ' trash_device $device'
echo ' diskinfo $device'
echo ' update_network'
echo ' poweroff'
echo ' reboot'
echo ' help'
echo
test "$ACTION" = "help" && exit 0
# return error for any unknown/unspecified action
exit 1
;;
esac

View file

@ -1,946 +0,0 @@
#!/usr/bin/perl
#
# 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.
#
# $Id$
#
# the web interface of the CryptoBox
#
###############################################
use strict;
use CGI;
use ClearSilver;
use ConfigFile;
use English;
use CGI::Carp;
use IO::File;
use POSIX;
use constant CRYPTOBOX_VERSION => 0.3;
# debug levels
use constant DEBUG_NONE => 0;
use constant DEBUG_ERROR => 1;
use constant DEBUG_WARN => 2;
use constant DEBUG_INFO => 3;
# drop privileges
$UID = $EUID;
$GID = $EGID;
# necessary for suid perl scripts (see 'man perlsec' for details)
$ENV{'PATH'} = '/bin:/usr/bin';
delete @ENV{qw(IFS CDPATH ENV BASH_ENV)}; # Make %ENV safer
my $CONFIG_FILE = '/etc/cryptobox/cryptobox.conf';
my $pagedata;
my ($LANGUAGE_DIR, $DEFAULT_LANGUAGE, $HTML_TEMPLATE_DIR, $DOC_DIR);
my ($CB_SCRIPT, $LOG_FILE, $IS_DEVEL, $STYLESHEET_URL, $DEBUG_LEVEL);
# get the directory of the cryptobox scripts/binaries and untaint it
$CB_SCRIPT = $0;
$CB_SCRIPT =~ m/^(.*)\/[^\/]*$/;
$CB_SCRIPT = ($1)? "$1/cbox-manage.sh" : './cbox-manage.sh';
&fatal_error ("could not find configuration file ($CONFIG_FILE)") unless (-e $CONFIG_FILE);
my $config = ConfigFile::read_config_file($CONFIG_FILE);
$LOG_FILE = $config->{LOG_FILE};
$LANGUAGE_DIR = $config->{LANGUAGE_DIR};
$DEFAULT_LANGUAGE = $config->{LANGUAGE};
$HTML_TEMPLATE_DIR = $config->{HTML_TEMPLATE_DIR};
$DOC_DIR = $config->{DOC_DIR};
$IS_DEVEL = ( -e $config->{DEV_FEATURES_SCRIPT});
$STYLESHEET_URL = $config->{STYLESHEET_URL};
if (defined($config->{DEBUG_LEVEL})) {
$DEBUG_LEVEL = $config->{DEBUG_LEVEL};
} else {
$DEBUG_LEVEL = DEBUG_ERROR; # default debug level
}
my $query = new CGI;
#################### subs ######################
# for fatal errors without the chance of clearsilver-rendering
sub fatal_error() {
my $message = shift;
print "Content-Type: text/html\n\n";
print "<html><head><title>CryptoBox</title></head>\n";
print "<body>\n";
print '<h1 align="center">' . $message . "</h1>\n";
print "</body></html>\n";
die "[CryptoBox]: $message";
}
sub debug_msg() {
my ($level, $message) = @_;
return 0 unless ($level >= $DEBUG_LEVEL);
warn "[cryptobox]: $message";
}
sub load_hdf {
my $hdf = ClearSilver::HDF->new();
my $fname = "$HTML_TEMPLATE_DIR/main.cs";
&fatal_error ("Template directory is invalid ($fname not found)!") unless (-e "$fname");
$hdf->setValue("Settings.TemplateDir","$HTML_TEMPLATE_DIR");
&fatal_error ("Documentation directory ($DOC_DIR) not found!") unless (-d "$DOC_DIR");
$hdf->setValue("Settings.DocDir","$DOC_DIR");
# if it was requested as directory index (link from index.html), we should
# set a real script name - otherwise links with a query string will break
# ignore POST part of the SCRIPT_NAME (after "&")
(my $script_url = $ENV{'SCRIPT_NAME'}) =~ m/^[^&]*/;
$hdf->setValue("ScriptName", ($ENV{'SCRIPT_NAME'} eq '/')? '/cryptobox' : $script_url );
# set stylesheet url
$hdf->setValue("Settings.Stylesheet",$STYLESHEET_URL);
&load_selected_language($hdf);
&get_available_languages($hdf);
return $hdf;
}
sub load_selected_language {
my $data = shift;
my $config_language;
# load $DEFAULT_LANGUAGE - this is necessary, if a translation is incomplete
$data->readFile("$LANGUAGE_DIR/$DEFAULT_LANGUAGE" . ".hdf");
# load configured language, if it is valid
$config_language = &get_cbox_config("language");
$config_language = $DEFAULT_LANGUAGE unless (&validate_language("$config_language"));
# check for preferred browser language, if the box was not initialized yet
if ( ! &check_config())
{
my $prefLang = &get_browser_language();
# take it, if a supported browser language was found
$config_language = $prefLang unless ($prefLang eq '');
}
######### temporary language setting? ############
# the default language can be overriden by the language links in the
# upper right of the page
if ($query->param('weblang')) {
my $weblang = $query->param('weblang');
if (&validate_language($weblang)) {
# load the data
$config_language = "$weblang";
# add the setting to every link
# how it should be done now ...
$data->setValue('Settings.LinkAttrs.weblang', "$weblang");
# old way of doing this ... (TODO: to be removed)
$data->setValue('Data.PostData.weblang', "$weblang");
} else {
# no valid language was selected - so you may ignore it
$data->setValue('Data.Warning', 'InvalidLanguage');
}
}
# import the configured resp. the temporarily selected language
$data->readFile("$LANGUAGE_DIR/$config_language" . ".hdf");
########## select documentation language ##########
if (&validate_doc_language($config_language)) {
# selected web interface language
$data->setValue('Settings.DocLang', "$config_language");
} elsif (&validate_doc_language($DEFAULT_LANGUAGE)) {
# configured CryptoBox language
$data->setValue('Settings.DocLang', "$DEFAULT_LANGUAGE");
} else {
# default hardcoded language (english)
$data->setValue('Settings.DocLang', "en");
}
}
# import the names of all available languages
sub get_available_languages {
my $data = shift;
my ($file, @files, $hdf, $lang_name);
opendir(DIR, $LANGUAGE_DIR) or &fatal_error ("Language directory ($LANGUAGE_DIR) not accessible!");
@files = sort grep { /.*\.hdf$/ } readdir(DIR);
close(DIR);
foreach $file (@files) {
$hdf = ClearSilver::HDF->new();
$hdf->readFile("$LANGUAGE_DIR/$file");
substr($file, -4) = "";
$lang_name = $hdf->getValue("Lang.Name", "$file");
$data->setValue("Data.Languages." . "$file", "$lang_name");
}
}
# look for preferred browser language setting
# this code was adapted from Per Cederberg - http://www.percederberg.net/home/perl/select.perl
# it returns an empty string, if no supported language was found
sub get_browser_language {
my ($str, @langs, @res);
# Use language preference settings
if ($ENV{'HTTP_ACCEPT_LANGUAGE'} ne '')
{
@langs = split(/,/, $ENV{'HTTP_ACCEPT_LANGUAGE'});
foreach (@langs)
{
# get the first part of the language setting
($str) = ($_ =~ m/([a-z]+)/);
# check, if it supported by the cryptobox
$res[$#res+1] = $str if validate_language($str);
}
}
# if everything fails - return empty string
$res[0] = "" if ($#res lt 0);
return $res[0];
}
sub log_msg {
my $text = shift;
open(LOGFILE,">> $LOG_FILE");
print LOGFILE "$text";
close(LOGFILE);
}
sub check_ssl {
# check, if we are behind a proxy with ssl (e.g. pound)
return (0==0) if ($ENV{'HTTP_FRONT_END_HTTPS'} =~ m/^on$/i);
# environment variable set (e.g. via apache directive "SetEnv HTTPS On")
return (0==0) if ($ENV{'HTTPS'} =~ m/^on$/i);
# port 80 -> not encrypted
return (0==1) if ($ENV{'SERVER_PORT'} == 80);
# other ports -> maybe ok - we accept it
return (0==0);
}
# check, if the given device is mounted/used somehow
# Paramter: device
sub check_mounted {
my ($dev) = @_;
return (system($CB_SCRIPT,"is_mounted",$dev) == 0);
}
sub check_config {
return (system($CB_SCRIPT,"check_config") == 0);
}
sub exec_cb_script {
my (@params) = @_;
my ($pid, @result);
&fatal_error("unable to fork process") unless defined($pid = open(PROG_OUT, "-|"));
if (!$pid) {
# child
exec($CB_SCRIPT, @params) or &fatal_error("failed to execute $CB_SCRIPT!");
exit 0;
} else {
# parent
# only read lines containing at least one non-whitespace character
@result = grep /\S/, <PROG_OUT>;
foreach (@result) { chomp; }
unless (close PROG_OUT) {
&debug_msg(DEBUG_WARN, "error while running $CB_SCRIPT (params:" . join(" ",@params) . "): $?");
return undef;
}
}
if (wantarray) {
return @result;
} elsif (@result > 0) {
return join('',@result);
} else {
return "";
}
}
sub check_init_running {
# TODO: improve this
return (0==1);
}
# Parameter: device
sub check_device_plaintext {
return (system("$CB_SCRIPT","is_plain",$1) == 0);
}
# Parameter: device
sub check_device_encryption {
return (system("$CB_SCRIPT","is_encrypted",$1) == 0);
}
sub is_harddisk_available {
my @all_disks = &exec_cb_script("get_available_disks");
return @all_disks > 0;
}
sub get_available_disks {
my @all_disks = &exec_cb_script("get_available_disks");
my ($disk, @return_disks);
foreach $disk (@all_disks) {
$disk =~ m#^([/\._\-\w]*)$#;
push @return_disks, $1 if ($1);
}
return @return_disks;
}
sub get_disk_name {
my ($dev) = @_;
my $disk_name = &exec_cb_script("get_device_name", $dev);
return $disk_name;
}
# return the value of a configuration setting (timeout, language, ip, ...)
# Parameter: setting_name
sub get_cbox_config {
my ($setting) = @_;
# tell the exec function, that we want a scalar instead of an array
my $scalar = &exec_cb_script("get_config",$setting);
return $scalar;
}
sub render {
my $pagefile = "$HTML_TEMPLATE_DIR/main.cs";
print "Content-Type: text/html\n\n";
my $cs = ClearSilver::CS->new($pagedata);
$cs->parseFile($pagefile);
print $cs->render();
}
# mount an encrypted volume
# Parameter: device password
sub mount_vol {
my ($device, $pw) = @_;
if (&check_mounted($device)) {
$pagedata->setValue('Data.Warning', 'IsMounted');
} else {
if ($pw eq '') {
&exec_cb_script("crypto-up", $device);
} else {
open(PW_INPUT, "| $CB_SCRIPT crypto-up $device");
print PW_INPUT $pw;
close(PW_INPUT);
}
}
}
# unmount a volume
# Parameter: device
sub umount_vol {
my ($device) = @_;
if (&check_mounted($device)) {
system($CB_SCRIPT, "crypto-down",$device);
} else {
$pagedata->setValue('Data.Warning', 'NotMounted');
}
}
# Parameter: device passphrase
# ignore passphrase (or leave it empty) to create a plaintext volume
sub volume_init {
my ($device, $crypto_pw) = @_;
my $result;
# only for encrypted volumes:
# write passphrase to a file - necessary as perl in secured mode does not allow
# the 'open(FH, "|/bin/prog ....")' call because of possible shell expansion - stupid 'open' :(
if ($crypto_pw) {
my ($fh, $temp_file);
# generate a temporary filename (as suggested by the Perl Cookbook)
do { $temp_file = POSIX::tmpnam() }
# TODO: reduce the file mask to the minimum - maybe 0600 would be a good choice
until $fh = IO::File->new($temp_file, O_RDWR|O_CREAT|O_EXCL);
close $fh;
unless (open(TMP, ">$temp_file")) {
&debug_msg(DEBUG_ERROR, "could not open a temporary file");
return (1==0);
}
print TMP $crypto_pw;
close TMP;
$result = &exec_cb_script("device_init", $device, $temp_file);
unlink ($temp_file) if (-e $temp_file);
} else {
$result = &exec_cb_script("device_init", $device);
}
# just to be sure, that the file does not get left behind
# usually the script should overwrite and remove it
return defined($result);
}
sub box_purge {
&exec_cb_script("box-purge");
}
sub system_poweroff {
&exec_cb_script("poweroff");
}
sub system_reboot {
&exec_cb_script("reboot");
}
sub validate_ip {
my $ip = shift;
my @octets = split /\./, $ip;
return 0 if ($#octets == 4);
# check for values and non-digits
return 0 if (($octets[0] <= 0) || ($octets[0] >= 255) || ($octets[0] =~ /\D/));
return 0 if (($octets[1] < 0) || ($octets[1] >= 255) || ($octets[1] =~ /\D/));
return 0 if (($octets[2] < 0) || ($octets[2] >= 255) || ($octets[2] =~ /\D/));
return 0 if (($octets[3] <= 0) || ($octets[3] >= 255) || ($octets[3] =~ /\D/));
return 1;
}
sub validate_timeout {
my $timeout = shift;
return 0 if ($timeout =~ /\D/);
return 1;
}
# check for a valid interface language
sub validate_language {
my $language = shift;
# check for non-alphanumeric character
return 0 if ($language =~ /\W/);
return 0 if ($language eq "");
return 0 if ( ! -e "$LANGUAGE_DIR/$language" . '.hdf');
return 1;
}
# check for a valid documentation language
sub validate_doc_language {
my $language = shift;
# check for non-alphanumeric character
return 0 if ($language =~ /\W/);
return 0 if ($language eq "");
return 0 if ( ! -e "$DOC_DIR/$language");
return 1;
}
################### main #########################
$pagedata = load_hdf();
my $current_admin_pw;
my $action = $query->param('action');
$action =~ m#^([\w\._\-]*)$#;
$action = ($1)? $1 : '';
my $device = $query->param('device');
$device =~ m#^([/_\-\w\.]*)$#;
$device = ($1)? $1 : '';
# BEWARE: there are two kinds of actions:
# * some require a harddisk
# * some do not require a harddisk
# take care, that you put a new action into the appropriate block below
# first: check for ssl!
if ( ! &check_ssl()) {
$pagedata->setValue('Data.Error', 'NoSSL');
# remove port number from HTTP_HOST
my $hostname = $ENV{'HTTP_HOST'};
$hostname =~ s/:[0-9]*//;
$pagedata->setValue('Data.Redirect.URL', "https://" . $hostname . $ENV{'SCRIPT_NAME'});
$pagedata->setValue('Data.Redirect.Delay', "3");
} elsif ($query->param('action')) {
#--------------------------------------------------------------#
# here you may define all cases that do not require a harddisk #
# put all other cases below the harddisk check #
#--------------------------------------------------------------#
#################### show_log #######################
if ($action eq 'show_log') {
$pagedata->setValue('Data.Action', 'show_log');
##################### doc ############################
} elsif ($action eq 'doc') {
if ($query->param('page')) {
$pagedata->setValue('Data.Doc.Page', $query->param('page'));
$pagedata->setValue('Data.Action', 'show_doc');
} else {
$pagedata->setValue('Data.Doc.Page', 'CryptoBoxUser');
$pagedata->setValue('Data.Action', 'show_doc');
}
##################### poweroff ######################
} elsif ($action eq 'system_ask') {
$pagedata->setValue('Data.Action', 'form_system');
##################### reboot ########################
} elsif ($action eq 'shutdown_do') {
if ($query->param('type') eq 'reboot') {
&system_reboot();
$pagedata->setValue('Data.Success', 'ReBoot');
$pagedata->setValue('Data.Redirect.Action', 'show_status');
$pagedata->setValue('Data.Redirect.Delay', "180");
} else {
&system_poweroff();
$pagedata->setValue('Data.Success', 'PowerOff');
}
$pagedata->setValue('Data.Action', 'empty');
##################### check for a harddisk ##########################
# catch this error, to prevent all following actions from execution #
#####################################################################
} elsif ( ! &is_harddisk_available()) {
$pagedata->setValue('Data.Error', 'NoHardDisk');
#-------------------------------------------------------#
# here you may define all cases that require a harddisk #
#-------------------------------------------------------#
################ umount_do #######################
} elsif ($action eq 'umount_do') {
if ($device eq '') {
&debug_msg(DEBUG_INFO, "invalid device: " . $query->param('device'));
$pagedata->setValue('Data.Warning', 'InvalidDevice');
$pagedata->setValue('Data.Action', 'emptu');
} elsif ( ! &check_config()) {
$pagedata->setValue('Data.Warning', 'NotInitialized');
$pagedata->setValue('Data.Action', 'form_init');
} elsif (&check_init_running()) {
$pagedata->setValue('Data.Warning', 'InitNotFinished');
$pagedata->setValue('Data.Action', 'empty');
$pagedata->setValue('Data.Redirect.Action', 'form_config');
$pagedata->setValue('Data.Redirect.Delay', "30");
} elsif ( ! &check_mounted($device)) {
$pagedata->setValue('Data.Warning', 'NotMounted');
$pagedata->setValue('Data.Action', 'show_volume');
} else {
# unmounten
&umount_vol($device);
if (&check_mounted($device)) {
$pagedata->setValue('Data.Warning', 'UmountFailed');
$pagedata->setValue('Data.Action', 'show_volume');
} else {
#$pagedata->setValue('Data.Success', 'UmountDone');
$pagedata->setValue('Data.Action', 'show_volume');
}
}
################ mount_do ########################
} elsif ($action eq 'mount_do') {
my $is_encrypted = &check_device_encryption($device) if ($device ne '');
if ($device eq '') {
&debug_msg(DEBUG_INFO, "invalid device: " . $query->param('device'));
$pagedata->setValue('Data.Warning', 'InvalidDevice');
$pagedata->setValue('Data.Action', 'empty');
} elsif ( ! &check_config()) {
$pagedata->setValue('Data.Warning', 'NotInitialized');
$pagedata->setValue('Data.Action', 'form_init');
} elsif (&check_init_running()) {
$pagedata->setValue('Data.Warning', 'InitNotFinished');
$pagedata->setValue('Data.Action', 'empty');
$pagedata->setValue('Data.Redirect.Action', 'form_config');
$pagedata->setValue('Data.Redirect.Delay', "30");
} elsif (&check_mounted($device)) {
$pagedata->setValue('Data.Warning', 'IsMounted');
$pagedata->setValue('Data.Action', 'show_volume');
} elsif ($is_encrypted && ($query->param('crypto_password') eq '')) {
# leeres Passwort
$pagedata->setValue('Data.Warning', 'EmptyCryptoPassword');
$pagedata->setValue('Data.Action', 'show_volume');
} else {
# mounten
if ($is_encrypted) {
&mount_vol($device, $query->param('crypto_password'));
} else {
&mount_vol($device);
}
if (!&check_mounted($device)) {
$pagedata->setValue('Data.Warning', 'MountFailed');
$pagedata->setValue('Data.Action', 'show_volume');
} else {
#$pagedata->setValue('Data.Success', 'MountDone');
$pagedata->setValue('Data.Action', 'show_volume');
}
}
################## mount_ask #######################
} elsif ($action eq 'mount_ask') {
if ( ! &check_config()) {
$pagedata->setValue('Data.Warning', 'NotInitialized');
$pagedata->setValue('Data.Action', 'form_init');
} elsif (&check_init_running()) {
$pagedata->setValue('Data.Warning', 'InitNotFinished');
$pagedata->setValue('Data.Action', 'empty');
$pagedata->setValue('Data.Redirect.Action', 'form_config');
$pagedata->setValue('Data.Redirect.Delay', "30");
} else {
$pagedata->setValue('Data.Action', 'form_mount');
}
################# umount_ask ########################
} elsif ($action eq 'umount_ask') {
if ( ! &check_config()) {
$pagedata->setValue('Data.Warning', 'NotInitialized');
$pagedata->setValue('Data.Action', 'form_init');
} else {
$pagedata->setValue('Data.Action', 'form_umount');
}
################## init_ask #########################
} elsif ($action eq 'init_ask') {
if (&check_init_running()) {
$pagedata->setValue('Data.Warning', 'InitNotFinished');
$pagedata->setValue('Data.Action', 'form_config');
} elsif (&check_config()) {
$pagedata->setValue('Data.Warning', 'AlreadyConfigured');
$pagedata->setValue('Data.Action', 'form_init');
} else {
$pagedata->setValue('Data.Action', 'form_init');
}
#################### init_do ########################
} elsif ($action eq 'init_do') {
$current_admin_pw = &get_cbox_config("admin_pw");
if ($current_admin_pw ne '' && $current_admin_pw ne $query->param('current_admin_password')) {
$pagedata->setValue('Data.Warning', 'WrongAdminPassword');
$pagedata->setValue('Data.Action', 'form_init');
} elsif ($query->param('admin_password') ne $query->param('admin_password2')) {
# different admin-passwords
$pagedata->setValue('Data.Warning', 'DifferentAdminPasswords');
$pagedata->setValue('Data.Action', 'form_init');
} elsif ($query->param('crypto_password') ne $query->param('crypto_password2')) {
# different crypto-passwords
$pagedata->setValue('Data.Warning', 'DifferentCryptoPasswords');
$pagedata->setValue('Data.Action', 'form_init');
} elsif ($query->param('crypto_password') eq '') {
# empty password
$pagedata->setValue('Data.Warning', 'EmptyCryptoPassword');
$pagedata->setValue('Data.Action', 'form_init');
} elsif ($query->param('confirm') ne $pagedata->getValue('Lang.Text.ConfirmInit','')) {
# wrong confirm string
$pagedata->setValue('Data.Warning', 'InitNotConfirmed');
$pagedata->setValue('Data.Action', 'form_init');
} else {
if (&volume_init($query->param('crypto_password'),$query->param('admin_password'))) {
#$pagedata->setValue('Data.Success', 'InitRunning');
$pagedata->setValue('Data.Action', 'form_config');
} else {
$pagedata->setValue('Data.Error', 'InitFailed');
}
}
#################### config_ask ######################
} elsif ($action eq 'config_ask') {
if ( ! &check_config()) {
$pagedata->setValue('Data.Warning', 'NotInitialized');
$pagedata->setValue('Data.Action', 'form_init');
} else {
$pagedata->setValue('Data.Action', 'form_config');
}
#################### config_do #######################
} elsif ($action eq 'config_do') {
my $query_language = $query->param('language');
$query_language =~ m/^(\w+)$/; $query_language = $1;
my $query_timeout = $query->param('timeout');
$query_timeout =~ m/^(\d+)$/; $query_timeout = $1;
if ( ! &check_config()) {
$pagedata->setValue('Data.Warning', 'NotInitialized');
$pagedata->setValue('Data.Action', 'form_init');
} else {
$current_admin_pw = &get_cbox_config("admin_pw");
if ($current_admin_pw ne '' && $current_admin_pw ne $query->param('current_admin_password')) {
$pagedata->setValue('Data.Warning', 'WrongAdminPassword');
$pagedata->setValue('Data.Action', 'form_config');
} elsif ( ! &validate_language($query_language)) {
$pagedata->setValue('Data.Warning', 'InvalidLanguage');
$pagedata->setValue('Data.Action', 'form_config');
} elsif ( ! &validate_timeout($query_timeout)) {
$pagedata->setValue('Data.Warning', 'InvalidTimeOut');
$pagedata->setValue('Data.Action', 'form_config');
} else {
system($CB_SCRIPT, "set_config", "language", $query_language);
&load_selected_language($pagedata);
system($CB_SCRIPT, "set_config", "timeout", $query_timeout);
# check, if the ip was reconfigured
# TODO: IP stuff should be moved to the live-cd stuff
if (defined($query->param('ip')) && ($query->param('ip') ne &get_cbox_config("ip"))) {
# set the new value
system($CB_SCRIPT, "set_config", "ip", $query->param('ip'));
# redirect to the new address
$pagedata->setValue('Data.Redirect.URL', "https://" . $query->param('ip') . $ENV{'SCRIPT_NAME'});
$pagedata->setValue('Data.Redirect.Delay', "5");
# display a warning for the redirection
$pagedata->setValue('Data.Warning', 'IPAddressChanged');
}
# check for success
if (defined($query->param('timeout'))
&& (&get_cbox_config("timeout") ne $query->param('timeout'))) {
$pagedata->setValue('Data.Warning', 'ConfigTimeOutFailed');
} elsif (defined($query->param('ip')) &&
(&get_cbox_config("ip") ne $query->param('ip'))) {
$pagedata->setValue('Data.Warning', 'ConfigIPFailed');
} elsif (defined($query->param('language'))
&& (&get_cbox_config("language") ne $query->param('language'))) {
$pagedata->setValue('Data.Warning', 'ConfigLanguageFailed');
} else {
#$pagedata->setValue('Data.Success', 'ConfigSaved');
}
$pagedata->setValue('Data.Action', 'show_status');
$pagedata->setValue('Data.Redirect.Action', 'show_status');
$pagedata->setValue('Data.Redirect.Delay', "30");
}
}
############## change volume name ###################
} elsif ($action eq 'volume_name_set') {
my $volume_name = $query->param('volume_name');
# remove all special characters which are not white-listed
$volume_name =~ s#[^\w \-_\#/\(\)\[\]]##g;
# untaint variable
$volume_name =~ m#^(.*)$#; $volume_name = $1;
if ($device eq '') {
&debug_msg(DEBUG_INFO, "invalid device: " . $query->param('device'));
$pagedata->setValue('Data.Warning', 'InvalidDevice');
$pagedata->setValue('Data.Action', 'show_status');
} elsif (&check_mounted($device)) {
$pagedata->setValue('Data.Warning','VolumeMayNotBeMounted');
$pagedata->setValue('Data.Action', 'show_volume');
} elsif ($volume_name eq '') {
$pagedata->setValue('Data.Warning','InvalidVolumeName');
$pagedata->setValue('Data.Action', 'show_volume');
} else {
&exec_cb_script('set_device_name',$device,$volume_name);
my $new_volume_name = &exec_cb_script('get_device_name',$device);
$pagedata->setValue('Data.Warning','SetVolumeNameFailed') unless ($new_volume_name eq $volume_name);
$pagedata->setValue('Data.Action', 'show_volume');
}
############ initialize volume (form) ###############
} elsif ($action eq 'volume_init_ask') {
if ($device eq '') {
&debug_msg(DEBUG_INFO, "invalid device: " . $query->param('device'));
$pagedata->setValue('Data.Warning', 'InvalidDevice');
$pagedata->setValue('Data.Action', 'show_status');
} elsif (&check_mounted($device)) {
$pagedata->setValue('Data.Warning','VolumeMayNotBeMounted');
$pagedata->setValue('Data.Action', 'show_volume');
} else {
$pagedata->setValue('Data.CurrentDisk.InitParams.encrypted',defined($query->param('encryption'))? 1 : 0);
$pagedata->setValue('Data.Action', 'form_init_partition');
}
############### initialize volume ###################
} elsif ($action eq 'volume_init_do') {
$current_admin_pw = &get_cbox_config("admin_pw");
# remember the current "encryption" setting - just in case, we want to emit a warning and
# return to the same screen
$pagedata->setValue('Data.CurrentDisk.InitParams.encrypted',defined($query->param('encryption'))? 1 : 0);
if ($device eq '') {
&debug_msg(DEBUG_INFO, "invalid device: " . $query->param('device'));
$pagedata->setValue('Data.Warning', 'InvalidDevice');
$pagedata->setValue('Data.Action', 'show_status');
} elsif (&check_mounted($device)) {
$pagedata->setValue('Data.Warning','VolumeMayNotBeMounted');
$pagedata->setValue('Data.Action', 'show_volume');
} elsif ($current_admin_pw ne ''
&& $current_admin_pw ne $query->param('current_admin_password')) {
$pagedata->setValue('Data.Warning', 'WrongAdminPassword');
$pagedata->setValue('Data.Action', 'form_init_partition');
} elsif (defined($query->param('encryption')) && ($query->param('crypto_password') ne $query->param('crypto_password2'))) {
# different crypto-passwords
$pagedata->setValue('Data.Warning', 'DifferentCryptoPasswords');
$pagedata->setValue('Data.Action', 'form_init_partition');
} elsif (defined($query->param('encryption')) && ($query->param('crypto_password') eq '')) {
# empty password
$pagedata->setValue('Data.Warning', 'EmptyCryptoPassword');
$pagedata->setValue('Data.Action', 'form_init_partition');
} elsif ($query->param('confirm') ne $pagedata->getValue('Lang.Text.ConfirmInit','')) {
# wrong confirm string
$pagedata->setValue('Data.Warning', 'InitNotConfirmed');
$pagedata->setValue('Data.Action', 'form_init_partition');
} else {
my $init_result;
if (defined($query->param('encryption'))) {
$init_result = &volume_init($device,$query->param('crypto_password'));
} else {
$init_result = &volume_init($device);
}
if ($init_result) {
#$pagedata->setValue('Data.Success', 'InitRunning');
$pagedata->setValue('Data.Action', 'show_volume');
} else {
$pagedata->setValue('Data.Error', 'InitFailed');
$pagedata->setValue('Data.Action', 'show_volume');
}
}
################## volume info ######################
} elsif ($action eq 'show_volume') {
if ($device eq '') {
&debug_msg(DEBUG_INFO, "invalid device: " . $query->param('device'));
$pagedata->setValue('Data.Warning', 'InvalidDevice');
$pagedata->setValue('Data.Action', 'show_status');
} else {
$pagedata->setValue('Data.Action', 'show_volume');
}
#################### status #########################
} elsif ($action eq 'show_status') {
if ( ! &check_config()) {
$pagedata->setValue('Data.Warning', 'NotInitialized');
$pagedata->setValue('Data.Action', 'form_init');
} elsif (&check_init_running()) {
$pagedata->setValue('Data.Warning', 'InitNotFinished');
$pagedata->setValue('Data.Action', 'empty');
$pagedata->setValue('Data.Redirect.Action', 'form_config');
$pagedata->setValue('Data.Redirect.Delay', "30");
} else {
$pagedata->setValue('Data.Action', 'show_status');
$pagedata->setValue('Data.Redirect.Action', 'show_status');
$pagedata->setValue('Data.Redirect.Delay', "60");
}
################### box_purge #######################
# if we find an existing config partition, then check the adminpw
} elsif ($action eq 'do_purge') {
if ( &check_config()) {
$current_admin_pw = &get_cbox_config("admin_pw");
if ($current_admin_pw ne '' && $current_admin_pw ne $query->param('current_admin_password')) {
$pagedata->setValue('Data.Warning', 'WrongAdminPassword');
$pagedata->setValue('Data.Action', 'form_config');
} else {
&box_purge;
$pagedata->setValue('Data.Action', 'form_init');
}
}
################### unknown #########################
} else {
$pagedata->setValue('Data.Error', 'UnknownAction');
}
#################### default action ##########################
# check for a harddisk again, as this check was skipped
# because there was no action defined
} elsif ( ! &is_harddisk_available()) {
$pagedata->setValue('Data.Error', 'NoHardDisk');
} else {
if (&check_init_running()) {
$pagedata->setValue('Data.Warning', 'InitNotFinished');
$pagedata->setValue('Data.Action', 'empty');
$pagedata->setValue('Data.Redirect.Action', 'form_config');
$pagedata->setValue('Data.Redirect.Delay', "60");
} elsif (&check_config()) {
$pagedata->setValue('Data.Action', 'show_status');
$pagedata->setValue('Data.Redirect.Action', 'show_status');
$pagedata->setValue('Data.Redirect.Delay', "60");
} else {
$pagedata->setValue('Data.Action', 'form_init');
}
}
# check state of the cryptobox
$pagedata->setValue('Data.Status.Config', &check_config() ? 1 : 0);
$pagedata->setValue('Data.Status.InitRunning', &check_init_running() ? 1 : 0);
my $output = &get_cbox_config("admin_pw");
$pagedata->setValue('Data.Config.AdminPasswordIsSet', 1) if ($output ne '');
$output = join ("<br/>", &exec_cb_script("diskinfo"));
$pagedata->setValue('Data.PartitionInfo',"$output");
# preset config settings for clearsilver
$pagedata->setValue('Data.Config.IP', &get_cbox_config("ip"));
$pagedata->setValue('Data.Config.TimeOut', &get_cbox_config("timeout"));
$pagedata->setValue('Data.Config.Language', &get_cbox_config("language"));
# read log and add html linebreaks
$output = '';
if (-e "$LOG_FILE") {
open(LOGFILE, "< $LOG_FILE");
while (<LOGFILE>) { $output .= "$_<br/>" }
close(LOGFILE);
}
$pagedata->setValue('Data.Log',"$output");
$pagedata->setValue('Data.Status.DevelopmentMode', 1) if ($IS_DEVEL);
# save QUERY_STRING (e.g. for weblang-links)
my $querystring = $ENV{'QUERY_STRING'};
# remove weblang setting
$querystring =~ s/weblang=\w\w&?//;
$pagedata->setValue('Data.QueryString', "$querystring") if ($querystring ne '');
$pagedata->setValue('Data.Version', CRYPTOBOX_VERSION);
my ($one_disk, $one_name, $isActive, $isEncrypted, $isPlaintext);
my $avail_counter = 0; my $active_counter = 0; my $passive_counter = 0;
for $one_disk (&get_available_disks()) {
$one_name = &get_disk_name($one_disk);
$isEncrypted = &check_device_encryption($one_disk);
$isPlaintext = &check_device_plaintext($one_disk);
$pagedata->setValue("Data.Disks.available.${avail_counter}.device",$one_disk);
$pagedata->setValue("Data.Disks.available.${avail_counter}.name",$one_name);
$pagedata->setValue("Data.Disks.available.${avail_counter}.encryption", $isEncrypted? 1 : 0);
$pagedata->setValue("Data.Disks.available.${avail_counter}.plaintext", $isPlaintext? 1 : 0);
$isActive = &check_mounted($one_disk);
if ($isActive) {
$pagedata->setValue("Data.Disks.available.${avail_counter}.isActive",1);
$pagedata->setValue("Data.Disks.active.${active_counter}.device",$one_disk);
$pagedata->setValue("Data.Disks.active.${active_counter}.name",$one_name);
$pagedata->setValue("Data.Disks.active.${active_counter}.encryption", $isEncrypted? 1 : 0);
$pagedata->setValue("Data.Disks.active.${active_counter}.plaintext", $isPlaintext? 1 : 0);
$active_counter++;
} else {
$pagedata->setValue("Data.Disks.available.${avail_counter}.isActive",0);
$pagedata->setValue("Data.Disks.passive.${passive_counter}.device",$one_disk);
$pagedata->setValue("Data.Disks.passive.${passive_counter}.name",$one_name);
$pagedata->setValue("Data.Disks.passive.${passive_counter}.encryption", $isEncrypted? 1 : 0);
$pagedata->setValue("Data.Disks.passive.${passive_counter}.plaintext", $isPlaintext? 1 : 0);
$passive_counter++;
}
if ($device eq $one_disk) {
$pagedata->setValue('Data.CurrentDisk.device', $one_disk);
$pagedata->setValue('Data.CurrentDisk.name', $one_name);
$pagedata->setValue('Data.CurrentDisk.active', $isActive? 1 : 0);
$pagedata->setValue("Data.CurrentDisk.encryption", $isEncrypted? 1 : 0);
$pagedata->setValue("Data.CurrentDisk.plaintext", $isPlaintext? 1 : 0);
# retrieve capacity information if the device is mounted
if (&check_mounted($device)) {
my $cap_info = &exec_cb_script("get_capacity_info",$device);
# filter the relevant values (a simple split is not working, as the device name may
# contain spaces
$cap_info =~ m#^.*\s+([0-9\.,]+\w)\s+([0-9\.,]+\w)\s+([0-9\.,]+\w)\s+([0-9\.,]+\%)\s+#;
my ($cap_size, $cap_used, $cap_free, $cap_percent) = ($1, $2, $3, $4);
$pagedata->setValue('Data.CurrentDisk.capacity.used', $cap_used);
$pagedata->setValue('Data.CurrentDisk.capacity.free', $cap_free);
$pagedata->setValue('Data.CurrentDisk.capacity.size', $cap_size);
$pagedata->setValue('Data.CurrentDisk.capacity.percent', $cap_percent);
}
}
$avail_counter++;
}
&render();
close STDOUT;
exit 0;

View file

@ -1,21 +0,0 @@
/* $Id$ */
// define the location of your cryptobox.pl file in this header file
#include "cryptobox_wrapper.h"
#include <stdio.h>
#include <unistd.h>
/* C wrapper to allow cryptobox to run under a different uid */
/* Copyright (C) 02006, senselab, All Rights Reserved */
/* See the LICENSE file in this distribution for copyright information */
int main(int argc, char *argv[]) {
// necessary for mount action of the root-script
setreuid(geteuid(), -1);
argv[0] = EXEC_PATH;
execv(EXEC_PATH, argv);
}

View file

@ -1,191 +0,0 @@
function create_config()
# Parameter: device
{
local device=$1
unload_config
# create the new configuration filesystem if it is not static
if [ "$USE_SEPERATE_CONFIG_PARTITION" != "1" ]
then log_msg "Using static configuration ..."
else log_msg "Creating config filesystem ..."
"$ROOT_PERM_SCRIPT" create_config "$device"
log_msg "Mounting config partition ..."
"$ROOT_PERM_SCRIPT" mount_config "$device"
"$ROOT_PERM_SCRIPT" remount_config rw
fi
log_msg "Copying configuration defaults ..."
cp -a "$CONFIG_DEFAULTS_DIR/." "$CONFIG_DIR"
log_msg "Copying temporary certificate file to config filesystem ..."
log_msg "Setting inital values ..."
# beware: config_set_value remounts the config partition read-only
config_set_value "ip" "$(get_current_ip)"
# create database of readable names
config_set_value "names.db" ""
# create a marker to recognize a cryptobox partition
# this should be the last step, to prevent a half-initialized state
config_set_value "$CONFIG_MARKER" "$(date -I)"
}
function find_harddisk()
# look for the harddisk to be partitioned
{
local device=$(get_available_disks | head -1)
if [ -z "$device" ] ; then
log_msg "no valid harddisk for initialisation found!"
cat /proc/partitions >>"$LOG_FILE"
# do not return with an error, to avoid a failing of the script ('break on error')
# the caller of this function should handle an empty return string
fi
echo -n "$device"
}
function load_config()
{
unload_config
local status=0
# look for a configuration partition
[ "$USE_SEPERATE_CONFIG_PARTITION" = "1" ] && \
list_partitions_of_type config | while read part && [ "$status" = 0 ]
do log_msg "configuraton found on $part"
# error check?
"$ROOT_PERM_SCRIPT" mount_config "/dev/$part"
status=1
done
if is_config_active
then return 0
else log_msg "failed to locate config partition"
return 1
fi
}
function unload_config()
{
is_config_active || return
# only try to unmount, if it is not static (the config of a live-cd is always dynamic)
if [ "$USE_SEPERATE_CONFIG_PARTITION" = "1" ]
then "$ROOT_PERM_SCRIPT" umount_config
else return 0
fi
}
# rename to "prepare_cryptobox"
function init_cryptobox()
# this is only the first part of initialisation that takes no time - good for a smooth web interface
{
local device=$(find_harddisk)
[ -z "$device" ] && log_msg 'No valid harddisk found!' && return 1
turn_off_all_crypto
unload_config || true
log_msg "Partitioning the device ($device) ..."
"$ROOT_PERM_SCRIPT" partition_disk "$device" "0,1,L \n,,L\n"
log_msg "Initializing config partition on ${device}1 ..."
# TODO: this should not be hard-coded
create_config "${device}1"
}
case "$ACTION" of
network-up )
if [ "$SKIP_NETWORK_CONFIG" != 1 ]
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"
fi
if [ "$EXEC_FIREWALL_RULES" = 1 ]
then log_msg "Starting the firewall ..."
"$FIREWALL_SCRIPT" start
fi
if [ "$USE_STUNNEL" = 1 ]
then # start stunnel
if [ -f "$CERT_FILE" ]
then USE_CERT=$CERT_FILE
else USE_CERT=$CERT_TEMP
$MAKE_CERT_SCRIPT "$CERT_TEMP" >>"$LOG_FILE" 2>&1
# TODO: this could be dangerous - right?
# this is necessary, to allow www-data to copy the certificate
chown "$WEB_USER" "$CERT_TEMP"
fi
log_msg "Starting stunnel ..."
stunnel -p "$USE_CERT" -r localhost:80 -d 443 \
|| echo "$USE_CERT not found - not starting stunnel"
fi
;;
network-down )
if [ "$EXEC_FIREWALL_RULES" = 1 ]
then log_msg "Stopping the firewall ..."
"$FIREWALL_SCRIPT" stop
fi
if [ "$USE_STUNNEL" = 1 ]
then log_msg "Stopping stunnel ..."
# TODO: what about a pid?
killall stunnel 2>/dev/null || true
fi
if [ "$SKIP_NETWORK_CONFIG" != 1 ]
then log_msg "Shutting the network interface down ..."
"$IFCONFIG" "$NET_IFACE" down
fi
;;
services-up )
# the mount point has to be writeable
# this action is called as root - so we are allowed to umount
# TODO: do this only for ro-filesystem
# TODO: this way of mounting is evil
if mountpoint -q "$MNT_PARENT"
then true
else mount -t tmpfs tmpfs "$MNT_PARENT"
fi
true
;;
services-down )
# this action is called as root - so we are allowed to umount
mountpoint -q "$MNT_PARENT" && umount "$MNT_PARENT"
# TODO: we should not depend on samba and thttpd
# /etc/init.d/samba stop || true
# /etc/init.d/thttpd stop || true
true
;;
is_harddisk_available )
[ -z "$(find_harddisk)" ] && exit 1
exit 0
;;
update_ip_address )
# reconfigure the network interface to a new IP address
# wait for 5 seconds to finish present http requests
if [ "$SKIP_NETWORK_CONFIG" != 1 ]
then echo -n "sleep 5; \"$ROOT_PERM_SCRIPT\" update_network" | at now
fi
;;
poweroff )
log_msg "Turning off the CryptoBox ..."
turn_off_all_crypto
echo "poweroff" | at now
;;
reboot )
log_msg "Rebooting the CryptoBox ..."
turn_off_all_crypto
echo "reboot" | at now
;;
* )
echo "Syntax: $(basename $0) ACTION"
echo " config-up - scan for configuration partition and mount it"
echo " config-down - unmount configuration partition"
echo " network-up - enable network interface"
echo " network-down - disable network interface"
echo " services-up - run some cryptobox specific daemons"
echo " services-down - stop some cryptobox specific daemons"
echo " update_ip_address - update the network interface after reconfiguration"
echo " is_config_mounted - check, if configuration partition is mounted"
echo " box-init - initialize cryptobox (ALL data is LOST)"
echo " box-init-fg - the first part of initialization"
echo " box-init-bg - the last part of initialization (background)"
echo " is_harddisk_available - check, if there is a usable harddisk"
echo " poweroff - shutdown the cryptobox"
echo " reboot - reboot the cryptobox"
echo
;;
esac