318 lines
9.0 KiB
Bash
Executable File
318 lines
9.0 KiB
Bash
Executable File
#!/bin/sh
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#
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# managing our work at the cryptobox
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#
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# usual workflow:
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# dfsbuild - create the image directory with dfsbuild and copy it to
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# the working directory
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# config - apply cryptobox specific changes to the working directory
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# harden - remove unnecessary packages and disable developer features
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# iso - create the iso image (out of the working directory)
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# burn - tries to burn the the image on a cd-rw (maybe it works)
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#
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# development actions:
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# chroot - run first tests in a chroot environment
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# qemu - run the qemu emulation
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# devel - enable developer features like sshd, writable templates and
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# the test-suite (can be undone by "revert")
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# revert - reset the working directory to the image created by dfsbuild
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# upload - copy local working copy to tmpfs on a running cryptobox
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# diff - compare tmpfs-files on a running cryptobox with the original
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# merge - apply the diff to the local copy
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#
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# final action:
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# release - the same as "dfsbuild config harden iso"
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#
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#
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# problems of this script:
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# - has to run as root, because dfsbuild, config, iso, chroot, devel,
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# revert and release need root privileges
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# - 'harden' is strangely integrated
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#
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# you may run this script with multiple arguments, e.g.:
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# cb-build.sh dfsbuild config iso qemu
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#
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# the action "release" does what it says :)
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# (all developer's features like sshd, writable templates and
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# the test-suite are deactivated, some packages get removed)
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#
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set -ue
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# get the path of a configuration file - local configuration files
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# supersede default files
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# parameter: base name of the configuration file
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function get_config_file()
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{
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[ -e "$LOCALCONF_DIR/$1" ] && echo "$LOCALCONF_DIR/$1" && return 0
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[ -e "$DEFAULTCONF_DIR/$1" ] && echo "$DEFAULTCONF_DIR/$1" && return 0
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echo "configuration file ($1) not found!" >&2
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exit 1
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}
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# the base directory of your local development files
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ROOT_DIR=$(dirname "$0")
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# the template (default) configuration directory
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DEFAULTCONF_DIR="$ROOT_DIR/etc-defaults.d"
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# your local configuration directory (existing files supersede the defaults)
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LOCALCONF_DIR="$ROOT_DIR/etc-local.d"
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# the build directory (will be ERASED without warning)
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BUILDDIR="$ROOT_DIR/_builddir/cd1"
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# image directory created by dfsbuild
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IMAGE_DIR_ORIG="$BUILDDIR/image"
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# a working copy of the image directory
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IMAGE_DIR="$BUILDDIR/image-working"
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# template directory for cryptobox specific configuration
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TEMPLATE_DIR="cbox-tree.d"
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# the iso image
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IMAGE_FILE="$BUILDDIR/cryptobox.iso"
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# dfsbuild config
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CONFIG=$(get_config_file dfs.cbox.conf)
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# temporary directory
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TMP_DIR="/tmp/`basename $0`-$$"
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# the virtual harddisk image used for qemu
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HD_IMAGE="/tmp/`basename $0`-testplatte.img"
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# mkisofs options (the option "-U" is not clean, but it prevents long
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# filenames from getting mapped)
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MKISOFS_OPTIONS="-allow-multidot -U -D -iso-level 3 -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 1 -boot-info-table -pad -R"
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# the chroot-wrapper within the cryptobox
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CHROOTSTART="/usr/lib/cryptobox/chroot-start.sh"
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# for burning a CD
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CDWRITER="0,0,0"
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# qemu network configuration file
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QEMU_IFUP_FILE=$(get_config_file qemu-ifup)
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# to connect to a development cryptobox with ssh
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SSH_CONFIG_FILE=$(get_config_file ssh_config)
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# extract the hostname of the cryptobox from the ssh_config file
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SSH_HOST=$(grep "^Host " $SSH_CONFIG_FILE | head -1 | sed 's/^Host *\(.*\)$/\1/')
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# the script within the box, that does the development 'diff'
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DEVEL_FEATURES_SCRIPT="/usr/lib/cryptobox/devel-features.sh"
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# local configuration directory - contains scripts to be executed after
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# 'configure'
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CUSTOM_CONFIGURE_DIR="$ROOT_DIR/configure-local.d"
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####################### functions ######################
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function run_dfsbuild()
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{
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[ ! -e "$BUILDDIR" ] && mkdir -p "$BUILDDIR" && echo "das BuildDir ($BUILDDIR) wurde angelegt ..."
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dfsbuild -c "$CONFIG" -w "$BUILDDIR"
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# remove iso image of dfsbuild - it is not necessary
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[ -e "$BUILDDIR/image.iso" ] && rm "$BUILDDIR/image.iso"
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}
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function create_iso()
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{
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echo "Creating the iso ..."
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mkisofs $MKISOFS_OPTIONS -o "$IMAGE_FILE" "$IMAGE_DIR"
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}
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function qemu_boot()
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{
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# create a virtual harddisk image file
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if [ ! -e "$HD_IMAGE" ]
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then echo "Creating temporary harddisk image ..."
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dd if=/dev/zero of="$HD_IMAGE" bs=1M count=20
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fi
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echo "Starting qemu ..."
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qemu -cdrom "$IMAGE_FILE" -m 96 -hda "$IMAGE_FILE" -boot d -n "$QEMU_IFUP_FILE" || true
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# remove iptables rules
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"$QEMU_IFUP_FILE" stop
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}
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function init_working_directory()
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{
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cat /proc/mounts | grep -q "`basename $IMAGE_DIR`/proc" && umount "$IMAGE_DIR/proc"
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[ -e "$IMAGE_DIR" ] && echo "Removing old image dir ..." && rm -r "$IMAGE_DIR"
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echo "Copying the dfsbuild-image ..."
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cp -a "$IMAGE_DIR_ORIG" "$IMAGE_DIR"
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}
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function configure_cb()
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{
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if [ ! -e "$IMAGE_DIR" ]; then
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echo -e "Directory \"$IMAGE_DIR\" not found!"
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echo -e "Did you run \"$0 dfsbuild\"?"
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echo -e "Otherwise try \"$0 revert\" to fix this."
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exit
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fi
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echo "Copying files to the box ..."
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[ -e "$TMP_DIR" ] && rm -rf "$TMP_DIR"
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cp -dr "$TEMPLATE_DIR/." "$TMP_DIR"
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rm -rf `find "$TMP_DIR" -type d -name ".svn"`
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cp -dr "$TMP_DIR/." "$IMAGE_DIR"
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rm -rf "$TMP_DIR"
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echo "Configuring the cryptobox ..."
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# "harden" removes /etc/issue ...
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if [ -e "$IMAGE_DIR/etc/issue" ]
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then sed -i "s/^Version:.*/Revision: $(fetch_revision)/" "$IMAGE_DIR/etc/issue"
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else echo "Version:.*/Revision: $(fetch_revision)" >"$IMAGE_DIR/etc/issue"
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fi
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fetch_revision >"$IMAGE_DIR/etc/cryptobox/revision"
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chroot "$IMAGE_DIR" "$CHROOTSTART" /usr/lib/cryptobox/configure-cryptobox.sh normal
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# source local configure scripts
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[ -d "$CUSTOM_CONFIGURE_DIR" ] && \
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find "$CUSTOM_CONFIGURE_DIR" -xtype f | sort | while read file
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do echo "Sourcing custom configure script $(basename $file):"
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# execute it in its own environment (to be safe)
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# 'source' implicitly imports all current settings
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# indent these lines to improve the output
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( source "$file" ) 2>&1 | sed 's/^/\t/'
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done
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}
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function fetch_revision()
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{
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svn -R info 2>&1 | grep ^Revision| cut -f2 -d " " | sort | tail -1 \
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|| echo "unknown release"
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}
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function upload2devel()
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# upload local files to a development cryptobox
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# this is necessary to use an "old" development cd with
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# new code - this affects only the web-interface and the
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# cbox-manage.sh-script (the boot behaviour stays the same)
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#
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# of course, only the directories that are mapped to tmpfs can
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# be updated this way
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{
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local DIRS="var/www usr/share/cryptobox usr/lib/cryptobox"
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[ -e "$TMP_DIR" ] || mkdir -p "$TMP_DIR"
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for a in $DIRS
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do mkdir -p "$TMP_DIR/$a"
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cp -r "$TEMPLATE_DIR/$a/." "$TMP_DIR/$a"
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done
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find "$TMP_DIR" -type d -name '\.svn' | while read a
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do rm -rf "$a"
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done
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echo "Copying local files to the cryptobox ... "
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if scp -F "$SSH_CONFIG_FILE" -rpq "$TMP_DIR/." cryptobox:/tmp/mirror
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then echo "Set the base for future diffs to current state ..."
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ssh -F "$SSH_CONFIG_FILE" "$SSH_HOST" "$DEVEL_FEATURES_SCRIPT" set_diff_base
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else echo 'ERROR: copying failed!'
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fi
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rm -rf "$TMP_DIR"
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}
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function merge_from_devel()
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# merge a diff from a running development cryptobox into
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# this working directory
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{
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echo "Check for collisions ... (dry-run)"
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if devel_diff | patch --dry-run -p1 -d "$TEMPLATE_DIR"
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then echo
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echo "Applying diff ..."
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devel_diff | patch -p1 -d "$TEMPLATE_DIR"
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echo
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echo "Set the base for future diffs to current state ..."
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ssh -F "$SSH_CONFIG_FILE" "$SSH_HOST" "$DEVEL_FEATURES_SCRIPT" set_diff_base
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else echo "Merging will fail - do it manually!"
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fi
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}
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# get the diff of a running cryptobox system between its current state
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# and its original content
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function devel_diff()
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{
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ssh -F "$SSH_CONFIG_FILE" "$SSH_HOST" "$DEVEL_FEATURES_SCRIPT" diff
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}
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function blanknburn_cdrw()
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{
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cdrecord -v dev=$CDWRITER blank=fast
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cdrecord -v dev=$CDWRITER $IMAGE_FILE
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}
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################ do it! ######################
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[ $# -eq 0 ] && echo "[`basename $0`] - no arguments supplied - maybe you want to use '--help'"
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while [ $# -gt 0 ]
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do case "$1" in
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dfsbuild )
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run_dfsbuild
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init_working_directory
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;;
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config )
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configure_cb normal
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;;
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iso )
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create_iso
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;;
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qemu )
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qemu_boot
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;;
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revert )
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init_working_directory
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;;
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diff )
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# get a diff from a running development cryptobox
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devel_diff
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;;
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merge )
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merge_from_devel
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;;
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harden )
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chroot "$IMAGE_DIR" "$CHROOTSTART" /usr/lib/cryptobox/configure-cryptobox.sh secure
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;;
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upload )
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upload2devel
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;;
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chroot )
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if [ ! -x "$IMAGE_DIR/$CHROOTSTART" ]
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then echo "the chroot init script ("$IMAGE_DIR/$CHROOTSTART") is not executable"
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echo "maybe you should run '`basename $0` cb-config' first"
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else chroot "$IMAGE_DIR" "$CHROOTSTART"
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fi
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;;
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burn )
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blanknburn_cdrw
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;;
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release )
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$0 dfsbuild config harden iso
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;;
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help|--help )
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echo "Syntax: `basename $0` ( release | dfsbuild | config | harden | iso | qemu | revert | chroot | burn | upload | diff | merge | help )"
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echo " (you may specify more than one action)"
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echo
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;;
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* )
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echo -e "unknown action: $1"
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echo
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$0 help
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exit 1
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;;
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esac
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shift
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done
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