8 # generate primary header with json area containing illegal bytes
9 # beyond well-formed json format.
11 # secondary header is corrupted on purpose as well
15 # $2 full source luks2 image
17 QUOTE="[Homer J. Simpson]: Keep looking shocked and move slowly towards the cake."
22 read -r json_str < $TMPDIR/json0
23 json_len_orig=${#json_str}
24 json_len=$((json_len_orig+${#QUOTE}+SPACE))
25 test ${#json_str} -lt $((LUKS2_JSON_SIZE*512)) || exit 2
27 printf '%s' "$QUOTE" | _dd of=$TMPDIR/json0 seek=$((json_len_orig+SPACE)) bs=1 conv=notrunc
29 lib_mangle_json_hdr0_kill_hdr1
34 lib_hdr1_killed || exit 2
35 lib_hdr0_checksum || exit 2
37 read_luks2_json0 $TGT_IMG $TMPDIR/json_res0
39 _dd if=$TMPDIR/json_res0 of=$TMPDIR/quote skip=$((json_len_orig+SPACE)) count=${#QUOTE} bs=1
40 json_str_res0=$(head -c ${#QUOTE} $TMPDIR/quote)
41 test "$json_str_res0" = "$QUOTE" || exit 2