Blame tests/generators/generate-luks2-segment-wrong-size-1.img.sh
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#!/bin/bash
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. lib.sh
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#
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# *** Description ***
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#
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# generate primary header with wrong segment size field
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#
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# secondary header is corrupted on purpose as well
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#
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# $1 full target dir
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# $2 full source luks2 image
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function prepare()
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{
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cp $SRC_IMG $TGT_IMG
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test -d $TMPDIR || mkdir $TMPDIR
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read_luks2_json0 $TGT_IMG $TMPDIR/json0
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read_luks2_bin_hdr0 $TGT_IMG $TMPDIR/hdr0
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read_luks2_bin_hdr1 $TGT_IMG $TMPDIR/hdr1
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}
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function generate()
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{
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# remove mandatory encryption field
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json_str=$(jq -c '.segments."0".size = "automatic"' $TMPDIR/json0)
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test ${#json_str} -lt $((LUKS2_JSON_SIZE*512)) || exit 2
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write_luks2_json "$json_str" $TMPDIR/json0
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merge_bin_hdr_with_json $TMPDIR/hdr0 $TMPDIR/json0 $TMPDIR/area0
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erase_checksum $TMPDIR/area0
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chks0=$(calc_sha256_checksum_file $TMPDIR/area0)
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write_checksum $chks0 $TMPDIR/area0
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write_luks2_hdr0 $TMPDIR/area0 $TGT_IMG
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kill_bin_hdr $TMPDIR/hdr1
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write_luks2_hdr1 $TMPDIR/hdr1 $TGT_IMG
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}
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function check()
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{
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read_luks2_bin_hdr1 $TGT_IMG $TMPDIR/hdr_res1
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local str_res1=$(head -c 6 $TMPDIR/hdr_res1)
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test "$str_res1" = "VACUUM" || exit 2
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read_luks2_json0 $TGT_IMG $TMPDIR/json_res0
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jq -c 'if .segments."0".size != "automatic"
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then error("Unexpected value in result json") else empty end' $TMPDIR/json_res0 || exit 5
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}
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function cleanup()
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{
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rm -f $TMPDIR/*
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rm -fd $TMPDIR
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}
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test $# -eq 2 || exit 1
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TGT_IMG=$1/$(test_img_name $0)
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SRC_IMG=$2
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prepare
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generate
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check
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cleanup
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