72 lines
1.5 KiB
Plaintext
72 lines
1.5 KiB
Plaintext
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#!/bin/bash
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typeset -i I ITERATIONS PHASE LOC COUNT MAXCOUNT
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ME=`basename $0`
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if [ "$#" -ne 3 ]
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then
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echo "$ME: Usage: $ME <iterations> <maxcount> <filesystem_image>" >&2
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exit 1;
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fi
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ITERATIONS="$1"
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MAXCOUNT="$2"
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ORIG_FS_IMAGE="$3"
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FIXED_FS_IMAGE="/tmp/fixedfsimage.$$"
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NEW_FS_IMAGE="/tmp/newfsimage.$$"
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if [ ! -f "$ORIG_FS_IMAGE" ]
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then
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echo "$ME: Filesystem image $NEW_FS_IMAGE does not exist" >&2
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exit 1
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fi
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trap "rm -f $NEW_FS_IMAGE $FIXED_FS_IMAGE" 0 1 2 3 15
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rm -f "$NEW_FS_IMAGE" "$FIXED_FS_IMAGE"
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# Create the fixed image to compare against
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cp "$ORIG_FS_IMAGE" "$FIXED_FS_IMAGE"
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ext4fixup "$FIXED_FS_IMAGE"
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if [ "$?" -ne 0 ]
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then
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echo "$ME: ext4fixup failed!\n"
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exit 1
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fi
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I=0
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while [ "$I" -lt "$ITERATIONS" ]
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do
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# There is also a phase 4, which is writing out the updated superblocks and
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# block group descriptors. Test the with a separate script.
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let PHASE="$RANDOM"%3 # 0 to 2
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let PHASE++ # 1 to 3
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let LOC="$RANDOM"%2 # 0 to 1
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let LOC++ # 1 to 2
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let COUNT="$RANDOM"%"$MAXCOUNT"
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# Make a copy of the original image to fixup
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cp "$ORIG_FS_IMAGE" "$NEW_FS_IMAGE"
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# Run the fixup tool, but die partway through to see if we can recover
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ext4fixup -d "$PHASE,$LOC,$COUNT" "$NEW_FS_IMAGE" 2>/dev/null
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# run it again without -d to have it finish the job
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ext4fixup "$NEW_FS_IMAGE"
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if cmp "$FIXED_FS_IMAGE" "$NEW_FS_IMAGE"
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then
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:
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else
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echo "$ME: test failed with parameters $PHASE, $LOC, $COUNT"
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exit 1
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fi
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rm -f "$NEW_FS_IMAGE"
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let I++
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done
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