8 # generate primary with predefined json_size. There's only limited
9 # set of values allowed as json size in config section of LUKS2
12 # secondary header is corrupted on purpose as well
16 # $2 full source luks2 image
21 TEST_MDA_SIZE=$LUKS2_HDR_SIZE_4M
23 TEST_MDA_SIZE_BYTES=$((TEST_MDA_SIZE*512))
24 TEST_JSN_SIZE=$((TEST_MDA_SIZE-LUKS2_BIN_HDR_SIZE))
25 KEYSLOTS_OFFSET=$((TEST_MDA_SIZE*1024))
26 JSON_DIFF=$(((TEST_MDA_SIZE-LUKS2_HDR_SIZE)*1024))
27 JSON_SIZE=$((TEST_JSN_SIZE*512))
30 json_str=$(jq -c --arg jdiff $JSON_DIFF --arg jsize $JSON_SIZE --arg off $DATA_OFFSET \
31 '.keyslots[].area.offset |= ( . | tonumber + ($jdiff | tonumber) | tostring) |
32 .config.json_size = $jsize |
33 .segments."0".offset = $off' $TMPDIR/json0)
34 test -n "$json_str" || exit 2
35 test ${#json_str} -lt $((LUKS2_JSON_SIZE*512)) || exit 2
37 write_luks2_json "$json_str" $TMPDIR/json0 $TEST_JSN_SIZE
38 write_luks2_json "$json_str" $TMPDIR/json1 $TEST_JSN_SIZE
40 write_bin_hdr_size $TMPDIR/hdr0 $TEST_MDA_SIZE_BYTES
41 write_bin_hdr_size $TMPDIR/hdr1 $TEST_MDA_SIZE_BYTES
43 write_bin_hdr_offset $TMPDIR/hdr1 $TEST_MDA_SIZE_BYTES
45 lib_mangle_json_hdr0 $TEST_MDA_SIZE $TEST_JSN_SIZE kill
46 lib_mangle_json_hdr1 $TEST_MDA_SIZE $TEST_JSN_SIZE
51 lib_hdr0_killed $TEST_MDA_SIZE || exit 2
53 read_luks2_json1 $TGT_IMG $TMPDIR/json_res1 $TEST_JSN_SIZE
54 jq -c --arg koff $KEYSLOTS_OFFSET --arg jsize $JSON_SIZE \
55 'if ([.keyslots[].area.offset] | map(tonumber) | min | tostring != $koff) or
56 (.config.json_size != $jsize)
57 then error("Unexpected value in result json") else empty end' $TMPDIR/json_res1 || exit 5