summaryrefslogtreecommitdiffstats
path: root/tests/generators/generate-luks2-missing-trailing-null-byte-json0.img.sh
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 17:44:12 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 17:44:12 +0000
commit1be69c2c660b70ac2f4de2a5326e27e3e60eb82d (patch)
treebb299ab6f411f4fccd735907035de710e4ec6abc /tests/generators/generate-luks2-missing-trailing-null-byte-json0.img.sh
parentInitial commit. (diff)
downloadcryptsetup-1be69c2c660b70ac2f4de2a5326e27e3e60eb82d.tar.xz
cryptsetup-1be69c2c660b70ac2f4de2a5326e27e3e60eb82d.zip
Adding upstream version 2:2.3.7.upstream/2%2.3.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/generators/generate-luks2-missing-trailing-null-byte-json0.img.sh')
-rwxr-xr-xtests/generators/generate-luks2-missing-trailing-null-byte-json0.img.sh89
1 files changed, 89 insertions, 0 deletions
diff --git a/tests/generators/generate-luks2-missing-trailing-null-byte-json0.img.sh b/tests/generators/generate-luks2-missing-trailing-null-byte-json0.img.sh
new file mode 100755
index 0000000..916cff7
--- /dev/null
+++ b/tests/generators/generate-luks2-missing-trailing-null-byte-json0.img.sh
@@ -0,0 +1,89 @@
+#!/bin/bash
+
+. lib.sh
+
+#
+# *** Description ***
+#
+# generate primary header with well-formed json but missing
+# trailing null byte.
+#
+# secondary header is corrupted on purpose as well
+#
+
+# $1 full target dir
+# $2 full source luks2 image
+
+PATTERN="\"config\":{"
+KEY="\"config_key\":\""
+
+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 < $TMPDIR/json0
+ json_len=${#json_str}
+ pindex=$(strindex $json_str $PATTERN)
+ test $pindex -gt 0 || exit 2
+
+ offset=${#PATTERN}
+ offset=$((offset+pindex))
+ key_len=${#KEY}
+ remain=$((LUKS2_JSON_SIZE*512-key_len-json_len-1)) # -1: closing '"'
+ if [ ${json_str:offset:1} = "}" ]; then
+ format_str="%s%s%s"
+ else
+ format_str="%s%s,%s"
+ remain=$((remain-1)) # also count with separating ','
+ fi
+ test $remain -gt 0 || exit 2
+
+ fill=$(repeat_str "X" $remain)
+ fill=$(repeat_str "X" $remain)"\""
+
+ printf $format_str $KEY $fill ${json_str:$offset} | _dd of=$TMPDIR/json0 bs=1 seek=$offset conv=notrunc
+
+ 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
+ read -r json_str_res0 < $TMPDIR/json_res0
+ test ${#json_str_res0} -eq $((LUKS2_JSON_SIZE*512)) || 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