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Diffstat (limited to '')
| -rwxr-xr-x | tests/generators/generate-luks2-missing-trailing-null-byte-json0.img.sh | 60 |
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 |