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139 lines
3.8 KiB
139 lines
3.8 KiB
test_description="e2undo with the offset option (-o offset)"
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OUT="$test_name.log"
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TMPFILE2="${TMPFILE}_2"
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TDB_FILE="$TMPFILE.e2undo"
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E2UNDO_FEATURE_COMPAT_OFFSET=1
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trap "rm -f $TMPFILE2 $TDB_FILE" EXIT INT QUIT
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read_header_entry() {
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# $2 is just used as a dummy - it is never used by e2undo
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# when dumping the header
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$E2UNDO -h "$1" "$2" | grep "^$3:"
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}
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read_header_offset() {
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read_header_entry "$TDB_FILE" "$TMPFILE" "fs offset" | cut -f2
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}
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read_header_compat() {
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read_header_entry "$TDB_FILE" "$TMPFILE" "compat" | cut -f3
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}
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e2undo_offset_assert() {
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if [ "$crc_exp" != "$crc_act" -o \
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"$offset_exp" != "$offset_act" -o \
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$(($compat_act & $E2UNDO_FEATURE_COMPAT_OFFSET)) -ne $compat_exp ]
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then
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echo "$1" >> "$test_name.failed"
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echo "crc_exp: $crc_exp" >> "$test_name.failed"
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echo "crc_act: $crc_act" >> "$test_name.failed"
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echo "offset_exp: $offset_exp" >> "$test_name.failed"
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echo "offset_act: $offset_act" >> "$test_name.failed"
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echo "compat_exp: $compat_exp" >> "$test_name.failed"
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echo "compat_act: $compat_act" >> "$test_name.failed"
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fi
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}
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init_fs() {
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echo "#" >> "$OUT"
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echo "# init fs for $1" >> "$OUT"
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echo "#" >> "$OUT"
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rm -f "$TDB_FILE"
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dd if=/dev/zero of="$TMPFILE" bs=1k count=1024 > /dev/null 2>&1
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$MKE2FS -F -z "$TDB_FILE" -b 1024 -E offset=524288 "$TMPFILE" 512 \
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>> "$OUT" 2>&1
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}
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#
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# test absence of the "-o N" option
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#
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test_e2undo_offset_no_option() {
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init_fs "test_e2undo_offset_no_option"
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$E2UNDO "$TDB_FILE" "$TMPFILE" >> "$OUT" 2>&1
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crc_exp=`dd if=/dev/zero bs=1k count=1024 2>/dev/null | $CRCSUM`
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crc_act=`$CRCSUM "$TMPFILE"`
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offset_exp=524288
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offset_act=`read_header_offset`
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compat_exp=$E2UNDO_FEATURE_COMPAT_OFFSET
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compat_act=`read_header_compat`
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e2undo_offset_assert "test_e2undo_offset_no_option"
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}
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#
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# test removal of the offset feature in the undo header
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#
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test_e2undo_offset_no_option_remove_offset_header() {
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init_fs "test_e2undo_offset_no_option_remove_offset_header"
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dd if="$TMPFILE" of="$TMPFILE2" bs=1k count=512 skip=512 \
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> /dev/null 2>&1
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# offset feature will be removed from the undo header
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$TUNE2FS -z "$TDB_FILE" -C 42 "$TMPFILE2" >> "$OUT" 2>&1
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$E2UNDO "$TDB_FILE" "$TMPFILE2" >> "$OUT" 2>&1
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crc_exp=`dd if=/dev/zero bs=1k count=512 2>/dev/null | $CRCSUM`
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crc_act=`$CRCSUM "$TMPFILE2"`
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offset_exp=
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offset_act=`read_header_offset`
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compat_exp=0
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compat_act=`read_header_compat`
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e2undo_offset_assert "test_e2undo_offset_no_option_remove_offset_header"
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}
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#
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# test "-o 4096"
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#
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test_e2undo_offset_4096() {
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init_fs "test_e2undo_offset_4096"
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dd if=/dev/zero of="$TMPFILE2" bs=1k count=4 > /dev/null 2>&1
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dd if="$TMPFILE" of="$TMPFILE2" bs=1k count=512 skip=512 seek=4 \
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> /dev/null 2>&1
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$E2UNDO -o 4096 "$TDB_FILE" "$TMPFILE2" >> "$OUT" 2>&1
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crc_exp=`dd if=/dev/zero bs=1k count=516 2>/dev/null | $CRCSUM`
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crc_act=`$CRCSUM "$TMPFILE2"`
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# the same as in test_e2undo_offset_no_option
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offset_exp=524288
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offset_act=`read_header_offset`
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compat_exp=$E2UNDO_FEATURE_COMPAT_OFFSET
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compat_act=`read_header_compat`
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e2undo_offset_assert "test_e2undo_offset_4096"
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}
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#
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# test "-o 0"
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#
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test_e2undo_offset_0() {
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init_fs "test_e2undo_offset_0"
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dd if="$TMPFILE" of="$TMPFILE2" bs=1k count=512 skip=512 \
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> /dev/null 2>&1
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$E2UNDO -o 0 "$TDB_FILE" "$TMPFILE2" >> "$OUT" 2>&1
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crc_exp=`dd if=/dev/zero bs=1k count=512 2>/dev/null | $CRCSUM`
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crc_act=`$CRCSUM "$TMPFILE2"`
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# the same as in test_e2undo_offset_no_option
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offset_exp=524288
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offset_act=`read_header_offset`
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compat_exp=$E2UNDO_FEATURE_COMPAT_OFFSET
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compat_act=`read_header_compat`
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e2undo_offset_assert "test_e2undo_offset_0"
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}
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test_e2undo_offset_no_option
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test_e2undo_offset_no_option_remove_offset_header
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test_e2undo_offset_4096
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test_e2undo_offset_0
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if [ -e "$test_name.failed" ]; then
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echo "$test_name: $test_description: failed"
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else
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echo "$test_name: $test_description: ok"
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touch "$test_name.ok"
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fi
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