1 files changed, 60 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..9c5ed0b
--- /dev/null
+++ b/tests/generators/generate-luks2-missing-trailing-null-byte-json0.img.sh
@@ -0,0 +1,60 @@
+#!/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 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
+
+	lib_mangle_json_hdr0_kill_hdr1
+}
+
+function check()
+{
+	lib_hdr1_killed || exit 2
+	lib_hdr0_checksum || exit 2
+
+	read_luks2_json0 $TGT_IMG $TMPDIR/json_res0
+	read -r json_str_res0 < $TMPDIR/json_res0
+	test ${#json_str_res0} -eq $((LUKS2_JSON_SIZE*512)) || exit 2
+}
+
+lib_prepare $@
+generate
+check
+lib_cleanup