blob: 85798e5a9a16c9b8cdabe8d7cba42d0465ad04fb (
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
68
69
70
71
72
|
#!/bin/bash
. lib.sh
#
# *** Description ***
#
# generate primary header with missing keyslot object referenced
# in token object
#
# 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()
{
read -r json_str_orig < $TMPDIR/json0
# add missing keyslot reference in keyslots array of token '0'
json_str=$(jq -r -c -M 'def missks: getpath(["keyslots"]) | keys | max | tonumber + 1 | tostring;
.tokens += {"0":{"type":"dummy","keyslots":[ "0", missks ]}}' $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 $TMPDIR/json_res0
chks_res0=$(read_sha256_checksum $TGT_IMG)
test "$chks0" = "$chks_res0" || exit 2
new_arr_len=$(jq -c -M '.tokens."0".keyslots | length' $TMPDIR/json_res0)
test $new_arr_len -eq 2 || exit 2
}
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
|
