dc75d76087
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com> Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
128 lines
4.4 KiB
Bash
Executable File
128 lines
4.4 KiB
Bash
Executable File
#!/bin/bash
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#
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# Copyright(c) 2012-2021 Intel Corporation
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# DESCRIPTION Swap one random bit in each metadata section and try to load cache.
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# The line below says that this test should be included in BVT - it will be launched, when we use "./run_tests -b"
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# USE_IN_BVT
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# USE_IN_NIGHTLY
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# Standard beginning for every test - get the main tests directory and
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# link the cas_lib file for CAS API, then use "start_test $*" to pass params
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# and do other necessary checks and setup
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TESTS_DIR="$(dirname $0)/../"
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. $TESTS_DIR/cas_lib
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start_test $*
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# This is where the real test starts
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test_log_start
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# Corrupts random bit from byte on given by $1 address from ${CACHE_DEVICE}1
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corrupt_byte(){
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OFFSET=$1
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READ_VALUE=`od -N 1 -j $OFFSET -A n -t x1 ${CACHE_DEVICE}-part1`
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READ_VALUE="0x`echo $READ_VALUE`"
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RANDOM_UINT32=`od -An -tu4 -N4 /dev/urandom`
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MASK=$(( 1 << $(( $RANDOM_UINT32 % 8 )) ))
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echo -e "\x$(( ${READ_VALUE} ^ ${MASK} ))"| dd bs=1 count=1 seek=$OFFSET conv=notrunc of=${CACHE_DEVICE}-part1 1>&2 2>/dev/null
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}
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align(){
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VALUE=$1
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ALIGNMENT=$2
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echo $((($VALUE + $ALIGNMENT - 1) / $ALIGNMENT * $ALIGNMENT))
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}
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# Use CACHE_DEVICE and CORE_DEVICE provided by configuration file and remove partitions from those devices
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TARGET_DEVICE_OPTION="$CACHE_DEVICE" remove_partitions
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TARGET_DEVICE_OPTION="$CORE_DEVICE" remove_partitions
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# Create 1 primary partition on CACHE_DEVICE, 2000MB
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TARGET_DEVICE_OPTION="$CACHE_DEVICE" PARTITION_SIZE_OPTION="2000M" PARTITION_IDS_OPTION="1" make_primary_partitions
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# Create 1 primary partition on CORE_DEVICE, 4000M
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TARGET_DEVICE_OPTION="$CORE_DEVICE" PARTITION_SIZE_OPTION="4000M" PARTITION_IDS_OPTION="1" make_primary_partitions
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METADATA_SECTIONS_NAMES=("Super block config" "Super block runtime" "Reserved" "Part config" "Part runtime" "Core config" "Core runtime" "Core UUID" "Cleaning" "LRU list" "Collision" "List info" "Hash")
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for SECTION in "${METADATA_SECTIONS_NAMES[@]}"
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do
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if [ "$SECTION" == "Reserved" ]
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then
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continue
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fi
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if [ "$SECTION" == "Core config" ] || [ "$SECTION" == "Core UUID" ] || [ "$SECTION" == "Part config" ]
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then
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flapping=1
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else
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flapping=0
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fi
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# Start cache on CACHE_DEVICE to repair it and also to make log.
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CACHE_ID_OPTION="1" CACHE_FORCE_OPTION="1" CACHE_DEVICE_OPTION="${CACHE_DEVICE}-part1" start_cache
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# Stop cache.
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CACHE_ID_OPTION="1" stop_cache
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# Resolve size and offset of metadata section.
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METADATA_SECTION_OFFSET=`dmesg | grep "${SECTION} offset" | tac | sed '1!d' | sed -e 's/.*[^0-9]\([0-9]\+\)[^0-9]*$/\1/' `
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METADATA_SECTION_SIZE=`dmesg | grep "${SECTION} size" | tac | sed '1!d' | sed -e 's/.*[^0-9]\([0-9]\+\)[^0-9]*$/\1/' `
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if [ -z ${METADATA_SECTION_OFFSET} ]
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then
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test_log_trace "Couldn't read ${SECTION} offset"
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end_test 1
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fi
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if [ -z ${METADATA_SECTION_SIZE} ]
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then
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test_log_trace "Couldn't read ${SECTION} size"
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end_test 1
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fi
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# Choose random bit and corrupt it
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RANDOM_UINT32=`od -An -tu4 -N4 /dev/urandom`
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# Super block size is in bytes!
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if [ "$SECTION" == "Super block config" ] || [ "$SECTION" == "Super block runtime" ]
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then
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METADATA_SECTION_SIZE_B=$METADATA_SECTION_SIZE
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else
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METADATA_SECTION_SIZE_B=$(( $METADATA_SECTION_SIZE * 1024 ))
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fi
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METADATA_SECTION_START_B=$(( ${METADATA_SECTION_OFFSET} * 1024 ))
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CORRUPT_OFFSET=$(( $RANDOM_UINT32 % $METADATA_SECTION_SIZE_B ))
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if [ "$(( $CORRUPT_OFFSET % 4096 ))" -ge "2048" ]; then
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CORRUPT_OFFSET=$(( $CORRUPT_OFFSET - 2048 ))
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fi
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test_log_trace "Corrupting with offset ${CORRUPT_OFFSET} B from start of ${SECTION}"
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CORRUPT_ADDRESS=$(( $METADATA_SECTION_START_B + $CORRUPT_OFFSET ))
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corrupt_byte ${CORRUPT_ADDRESS}
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if [ "$flapping" -eq "1" ]; then
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ALIGNMENT=$(( 128 * 1024 ))
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METADATA_SECTION_SIZE_ALIGNED_B=$(align $METADATA_SECTION_SIZE_B $ALIGNMENT)
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METADATA_SECTION_START_B=$(( $METADATA_SECTION_START_B + $METADATA_SECTION_SIZE_ALIGNED_B ))
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CORRUPT_ADDRESS=$(( $METADATA_SECTION_START_B + $CORRUPT_OFFSET ))
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corrupt_byte ${CORRUPT_ADDRESS}
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fi
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# Start again with load option, this should fail, metadata is corrupted.
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NEGATIVE_TEST_OPTION="1" CACHE_ID_OPTION="1" CACHE_LOAD_METADATA_OPTION="1" CACHE_DEVICE_OPTION="${CACHE_DEVICE}-part1" start_cache
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done
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test_log_stop
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# Always return 0 at the end of the test - if at any point something has failed
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# in the API functions, test will end and return a proper result.
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# If you need to check other things during the test and end the test earlier, you
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# should end the test using "end_test $retval" function
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end_test 0
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