blob: 9efc7566cbf62f5a41e22bf033179ee910da62f1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
#!/bin/bash
. lib.sh
#
# *** Description ***
#
# generate primary header with wrong segment offset field
#
# secondary header is corrupted on purpose as well
#
# $1 full target dir
# $2 full source luks2 image
function prepare()
{
cp $SRC_IMG $TGT_IMG
test -d $TMPDIR || mkdir $TMPDIR
read_luks2_json0 $TGT_IMG $TMPDIR/json0
read_luks2_bin_hdr0 $TGT_IMG $TMPDIR/hdr0
read_luks2_bin_hdr1 $TGT_IMG $TMPDIR/hdr1
}
function generate()
{
# remove mandatory encryption field
json_str=$(jq -c '.segments."0".offset = "-42"' $TMPDIR/json0)
test ${#json_str} -lt $((LUKS2_JSON_SIZE*512)) || exit 2
write_luks2_json "$json_str" $TMPDIR/json0
merge_bin_hdr_with_json $TMPDIR/hdr0 $TMPDIR/json0 $TMPDIR/area0
erase_checksum $TMPDIR/area0
chks0=$(calc_sha256_checksum_file $TMPDIR/area0)
write_checksum $chks0 $TMPDIR/area0
write_luks2_hdr0 $TMPDIR/area0 $TGT_IMG
kill_bin_hdr $TMPDIR/hdr1
write_luks2_hdr1 $TMPDIR/hdr1 $TGT_IMG
}
function check()
{
read_luks2_bin_hdr1 $TGT_IMG $TMPDIR/hdr_res1
local str_res1=$(head -c 6 $TMPDIR/hdr_res1)
test "$str_res1" = "VACUUM" || exit 2
read_luks2_json0 $TGT_IMG $TMPDIR/json_res0
jq -c 'if .segments."0".offset != "-42"
then error("Unexpected value in result json") else empty end' $TMPDIR/json_res0 || exit 5
}
function cleanup()
{
rm -f $TMPDIR/*
rm -fd $TMPDIR
}
test $# -eq 2 || exit 1
TGT_IMG=$1/$(test_img_name $0)
SRC_IMG=$2
prepare
generate
check
cleanup
|
