tests/generators/generate-luks2-pbkdf2-leftover-params-1.img.sh

   1 #!/bin/bash
   2
   3 . lib.sh
   4
   5 #
   6 # *** Description ***
   7 #
   8 # generate primary header with luks2 keyslot kdf object
   9 # having left over params.
  10 #
  11 # secondary header is corrupted on purpose as well
  12 #
  13
  14 # $1 full target dir
  15 # $2 full source luks2 image
  16
  17 function prepare()
  18 {
  19         cp $SRC_IMG $TGT_IMG
  20         test -d $TMPDIR || mkdir $TMPDIR
  21         read_luks2_json0 $TGT_IMG $TMPDIR/json0
  22         read_luks2_bin_hdr0 $TGT_IMG $TMPDIR/hdr0
  23         read_luks2_bin_hdr1 $TGT_IMG $TMPDIR/hdr1
  24 }
  25
  26 function generate()
  27 {
  28         # add keyslot 1 to second digest
  29         obj_len=$(jq -c -M '.keyslots."2".kdf | length' $TMPDIR/json0)
  30         json_str=$(jq -r -c -M '.keyslots."2".kdf.type = "argon2id" | .keyslots."2".kdf.iterations = 1001 | .keyslots."2".kdf.hash = "sha256"' $TMPDIR/json0)
  31         test ${#json_str} -lt $((LUKS2_JSON_SIZE*512)) || exit 2
  32
  33         write_luks2_json "$json_str" $TMPDIR/json0
  34
  35         merge_bin_hdr_with_json $TMPDIR/hdr0 $TMPDIR/json0 $TMPDIR/area0
  36         erase_checksum $TMPDIR/area0
  37         chks0=$(calc_sha256_checksum_file $TMPDIR/area0)
  38         write_checksum $chks0 $TMPDIR/area0
  39         write_luks2_hdr0 $TMPDIR/area0 $TGT_IMG
  40         kill_bin_hdr $TMPDIR/hdr1
  41         write_luks2_hdr1 $TMPDIR/hdr1 $TGT_IMG
  42 }
  43
  44 function check()
  45 {
  46         read_luks2_bin_hdr1 $TGT_IMG $TMPDIR/hdr_res1
  47         local str_res1=$(head -c 6 $TMPDIR/hdr_res1)
  48         test "$str_res1" = "VACUUM" || exit 2
  49
  50         read_luks2_json0 $TGT_IMG $TMPDIR/json_res0
  51         chks_res0=$(read_sha256_checksum $TGT_IMG)
  52         test "$chks0" = "$chks_res0" || exit 2
  53         new_obj_len=$(jq -c -M '.keyslots."2".kdf | length' $TMPDIR/json_res0)
  54         test $((obj_len+2)) -eq $new_obj_len || exit 2
  55 }
  56
  57 function cleanup()
  58 {
  59         rm -f $TMPDIR/*
  60         rm -fd $TMPDIR
  61 }
  62
  63 test $# -eq 2 || exit 1
  64
  65 TGT_IMG=$1/$(test_img_name $0)
  66 SRC_IMG=$2
  67
  68 prepare
  69 generate
  70 check
  71 cleanup