tfix to tomb resize - tomb - the crypto undertaker
HTML git clone git://parazyd.org/tomb.git
DIR Log
DIR Files
DIR Refs
DIR README
DIR LICENSE
---
DIR commit bc3177141d93e0d87ebd3a144f32b5c64acd7407
DIR parent 8f9e9f9d2afcec6a81f1efd5fba765aa4d04c44c
HTML Author: Jaromil <jaromil@dyne.org>
Date: Wed, 12 Jun 2013 03:01:28 +0200
fix to tomb resize
also included into test script
Diffstat:
M extras/test/dig_forge_lock_open_cl… | 56 +++++++++++++++----------------
M tomb | 27 ++++++++++++---------------
2 files changed, 39 insertions(+), 44 deletions(-)
---
DIR diff --git a/extras/test/dig_forge_lock_open_close.sh b/extras/test/dig_forge_lock_open_close.sh
t@@ -1,48 +1,46 @@
-#/usr/bin/env zsh
+#!/usr/bin/zsh
T="../../tomb"
source utils.sh
+source ${T} source
-rm /tmp/test.tomb{,.key} -f || exit 1
-
-sudo -k
+notice() { print; yes "${@}"; print; }
+error() { _warning " ${@}"; }
+tt() {
+ start_loops=(`sudo losetup -a |cut -d: -f1`)
+ ${T} ${=@}
+ res=$?
+ loops=(`sudo losetup -a |cut -d: -f1`)
+ { test "${#start_loops}" = "${#loops}" } || { error "loop device limit change to ${#loops}" }
+ print " Tomb command returns $res"
+ return $res
+}
-${T} dig -s 10 /tmp/test.tomb
-sudo losetup -a
-${T} --ignore-swap --unsecure-dev-mode --tomb-pwd f00za --use-urandom \
- forge /tmp/test.tomb.key
+rm /tmp/test.tomb{,.key} -f || exit 1
-sudo losetup -a
+notice "Testing creation"
-${T} --ignore-swap --unsecure-dev-mode --tomb-pwd f00za \
- lock /tmp/test.tomb -k /tmp/test.tomb.key
+tt dig -s 10 /tmp/test.tomb
-sudo losetup -a
+tt --ignore-swap --unsecure-dev-mode --tomb-pwd f00za --use-urandom forge /tmp/test.tomb.key
-# sanity_tomb /tmp/asd.tomb
-echo
-echo trying to open with wrong password
-echo
-${T} --unsecure-dev-mode --tomb-pwd wrongpassword \
- open /tmp/test.tomb
+tt --ignore-swap --unsecure-dev-mode --tomb-pwd f00za lock /tmp/test.tomb -k /tmp/test.tomb.key
-sudo losetup -a
-
-echo
-echo trying to open with good password
-echo
+# sanity_tomb /tmp/asd.tomb
+notice "Testing open with wrong password"
-${T} --unsecure-dev-mode --tomb-pwd f00za \
- open /tmp/test.tomb
+tt --unsecure-dev-mode --tomb-pwd wrongpassword open /tmp/test.tomb
-sudo losetup -a
+notice "Testing open with good password"
-${T} --unsecure-dev-mode close test
+tt --unsecure-dev-mode --tomb-pwd f00za open /tmp/test.tomb
-sudo losetup -a
+tt --unsecure-dev-mode close test
-rm /tmp/test.tomb{,.key} -f || exit 1
+notice "Testing resize to 20MiB"
+tt --unsecure-dev-mode --tomb-pwd f00za -k /tmp/test.tomb.key resize /tmp/test.tomb -s 20
+# rm /tmp/test.tomb{,.key} -f || exit 1
DIR diff --git a/tomb b/tomb
t@@ -214,7 +214,7 @@ EOF
fi # are we root already
# make sure necessary kernel modules are loaded
- modprobe dm_mod 2>/dev/null
+ modprobe dm_mod 2>/dev/null
modprobe dm_crypt 2>/dev/null
return 0
t@@ -495,7 +495,7 @@ ask_key_password() {
local tombpass=""
if option_is_set --tomb-pwd; then
tombpass=`option_value --tomb-pwd`
- xxx "ask_key_password takes tombpass from CLI argument: $tombpass"
+ xxx "ask_key_password takes tombpass from CLI argument: $tombpass"
get_lukskey "$tombpass" ${tombkey} >/dev/null
t@@ -686,7 +686,7 @@ gen_key() {
done
else
tombpass="`option_value --tomb-pwd`"
- xxx "gen_key takes tombpass from CLI argument: $tombpass"
+ xxx "gen_key takes tombpass from CLI argument: $tombpass"
fi
t@@ -1221,7 +1221,7 @@ mount_tomb() {
if [ $? != 0 ]; then
# is it a LUKS encrypted nest? see cryptsetup(1)
_warning "$tombfile is not a valid Luks encrypted storage file"
- losetup -d ${nstloop}
+ losetup -d ${nstloop}
return 1
fi
say "this tomb is a valid LUKS encrypted device"
t@@ -1248,7 +1248,7 @@ mount_tomb() {
tombpass=`ask_key_password $tombkey`
{ test $? = 0 } || {
- losetup -d ${nstloop}
+ losetup -d ${nstloop}
die "No valid password supplied" }
get_lukskey "${tombpass}" ${tombkey} | \
t@@ -1648,7 +1648,7 @@ resize_tomb() {
local tmp_resize=`safe_filename tmbrsz`
local newtombsize=$opts[-s]
- local oldtombsize=`stat -c %s "$1" 2>/dev/null`
+ local oldtombsize=$(( `stat -c %s "$1" 2>/dev/null` / 1048576 ))
local mounted_tomb=`mount -l |
awk -vtomb="[$tombname]" '/^\/dev\/mapper\/tomb/ { if($7==tomb) print $1 }'`
t@@ -1656,9 +1656,6 @@ resize_tomb() {
_failure "the tomb $tombname is open, to resize it it needs to be close."
fi
- # MB to bytes conversion
- newtombsize=`expr \( $newtombsize \* 1024 \) \* 1024 2> /dev/null`
-
if ! [ "$newtombsize" ] ; then
_failure "You must specify the new size of $tombname"
elif [[ $newtombsize != <-> ]]; then
t@@ -1667,12 +1664,12 @@ resize_tomb() {
_failure "the new size must be greater then old tomb size."
fi
- local delta=`expr $newtombsize \- $oldtombsize`
+ delta="$(( $newtombsize - $oldtombsize ))"
act "Generating ${tombfile} of ${newtombsize}MiB"
xxx "Data dump using ${DD[1]} from /dev/urandom"
- ${=DD} if=/dev/urandom bs=1048576 count=${tombsize} of="${tmp_resize}"
+ ${=DD} if=/dev/urandom bs=1048576 count=${delta} of="${tmp_resize}"
if [ $? = 0 -a -e "${tmp_resize}" ]; then
xxx "OK: `ls -lh ${tmp_resize}`"
t@@ -1680,8 +1677,8 @@ resize_tomb() {
_failure "Error creating the extra resize $tmp_resize, operation aborted."
fi
- cat "${tmp_resize}" >> "$1"
- ${=WIPE} "${tmp_resize}"
+ cat "${tmp_resize}" >> ${tombdir}/${tombfile}
+ rm "${tmp_resize}"
tombpass=`ask_key_password $tombkey`
t@@ -1693,7 +1690,7 @@ resize_tomb() {
_failure "too many tomb opened. Please close any of them to open another tomb"
fi
- losetup -f "$1"
+ losetup -f ${tombdir}/${tombfile}
local mapdate=`date +%s`
local mapper="tomb.${tombname}.${mapdate}.`basename $nstloop`"
t@@ -1919,7 +1916,7 @@ main() {
subcommands_opts[askpass]=""
subcommands_opts[mktemp]=""
subcommands_opts[source]=""
- subcommands_opts[resize]="s: -size=s k: -key=k"
+ subcommands_opts[resize]="f -force -ignore-swap s: -size=s k: -key=k -tomb-pwd:"
subcommands_opts[check]="-ignore-swap"
# subcommands_opts[translate]=""