[f2fs-dev,RFC,16/24] tests: add fsck testcase of fixing sit entry valid_map

Commit Message

Sheng Yong Oct. 29, 2024, 12:09 p.m. UTC

Signed-off-by: Sheng Yong <[e-mail]>
---
 tests/f_sit_bad_valid_map/README    |  5 +++
 tests/f_sit_bad_valid_map/expect.in | 35 ++++++++++++++++++++
 tests/f_sit_bad_valid_map/script    | 50 +++++++++++++++++++++++++++++
 3 files changed, 90 insertions(+)
 create mode 100644 tests/f_sit_bad_valid_map/README
 create mode 100644 tests/f_sit_bad_valid_map/expect.in
 create mode 100644 tests/f_sit_bad_valid_map/script

Patch

diff --git a/tests/f_sit_bad_valid_map/README b/tests/f_sit_bad_valid_map/README
new file mode 100644
index 000000000000..5306bdd31ae5
--- /dev/null
+++ b/tests/f_sit_bad_valid_map/README
@@ -0,0 +1,5 @@ 
+1. create f2fs image
+2. mount f2fs and create a regular file and write data
+3. get a block address by dumping the inode
+4. inject bitmap in the sit entry of the blkaddr by clearing its bit
+5. fsck fixes the bitmap
diff --git a/tests/f_sit_bad_valid_map/expect.in b/tests/f_sit_bad_valid_map/expect.in
new file mode 100644
index 000000000000..e1a287825d56
--- /dev/null
+++ b/tests/f_sit_bad_valid_map/expect.in
@@ -0,0 +1,35 @@ 
+Info: Force to fix corruption
+[ASSERT] (check_block_count:x)  --> Wrong SIT valid blocks: segno=_SEGNO_, 512 vs. 511
+Info: checkpoint state = x :  nat_bits crc compacted_summary unmount
+[ASSERT] (fsck_chk_data_blk:x)  --> SIT bitmap is 0x0. blk_addr[_BLKADDR_]
+
+[FSCK] Unreachable nat entries                        [Ok..] [x]
+[FSCK] SIT valid block bitmap checking                [Fail]
+[FSCK] Hard link checking for regular file            [Ok..] [x]
+[FSCK] valid_block_count matching with CP             [Ok..] [x]
+[FSCK] valid_node_count matching with CP (de lookup)  [Ok..] [x]
+[FSCK] valid_node_count matching with CP (nat lookup) [Ok..] [x]
+[FSCK] valid_inode_count matched with CP              [Ok..] [x]
+[FSCK] free segment_count matched with CP             [Ok..] [x]
+[FSCK] next block offset is free                      [Ok..]
+[FSCK] fixing SIT types
+[FSCK] other corrupted bugs                           [Fail]
+Info: Duplicate valid checkpoint to mirror position x -> x
+Info: Write valid nat_bits in checkpoint
+Info: fix_checkpoint() cur_cp:x
+
+Info: Force to fix corruption
+Info: checkpoint state = x :  allow_nocrc nat_bits unmount
+
+[FSCK] Unreachable nat entries                        [Ok..] [x]
+[FSCK] SIT valid block bitmap checking                [Ok..]
+[FSCK] Hard link checking for regular file            [Ok..] [x]
+[FSCK] valid_block_count matching with CP             [Ok..] [x]
+[FSCK] valid_node_count matching with CP (de lookup)  [Ok..] [x]
+[FSCK] valid_node_count matching with CP (nat lookup) [Ok..] [x]
+[FSCK] valid_inode_count matched with CP              [Ok..] [x]
+[FSCK] free segment_count matched with CP             [Ok..] [x]
+[FSCK] next block offset is free                      [Ok..]
+[FSCK] fixing SIT types
+[FSCK] other corrupted bugs                           [Ok..]
+
diff --git a/tests/f_sit_bad_valid_map/script b/tests/f_sit_bad_valid_map/script
new file mode 100644
index 000000000000..0064c26979d8
--- /dev/null
+++ b/tests/f_sit_bad_valid_map/script
@@ -0,0 +1,50 @@ 
+#!/bin/sh
+
+DESC="sit entry with invalid valid_map"
+
+. $TOPDIR/tests/helpers
+
+cleanup pre > $LOG 2>&1
+make_f2fs >> $LOG 2>&1
+
+mkdir $TESTDIR/mntdir
+safe_mount $MNT_OPTS $META $TESTDIR/mntdir >> $LOG 2>&1
+if [ $? -ne 0 ]; then
+	echo "cannot mount f2fs image"
+	exit
+fi
+dd if=/dev/zero of=$TESTDIR/mntdir/testfile bs=4K count=513 status=none
+ino=`stat -c "%i" $TESTDIR/mntdir/testfile`
+safe_umount $TESTDIR/mntdir >> $LOG 2>&1
+if [ $? -ne 0 ]; then
+	echo "cannot umount f2fs image"
+	exit
+fi
+rm -rf $TESTDIR/mntdir
+
+$DUMP $DUMP_OPTS -i $ino $META >> $LOG 2>&1
+blkaddr=`$DUMP $DUMP_OPTS -i $ino $META | grep "\[0x100\]" | sed 's/i_addr\[0x100\].*: \([0-9]*\)\]$/\1/g'`
+echo "ino:$ino blkaddr:$blkaddr" >> $LOG
+
+offs=`offset_in_seg $blkaddr`
+idx=$(($offs >> 3))
+mask=$((1 << (7 - ($offs & 0x7))))
+
+val=`$INJECT --dry-run --sit 0 --blk $blkaddr --mb valid_map --idx $idx $META | grep "inject sit entry valid_map" | awk '{print $(NF-2)}'`
+echo "valid_map:$val mask:$mask" >> $LOG
+val=$(($val & (~$mask & 0xff)))
+echo "corrupt_map:$val" >> $LOG
+
+$INJECT --sit 0 --blk $blkaddr --mb valid_map --idx $idx --val $val $META >> $LOG 2>&1
+$FSCK $FSCK_OPTS -f $META > $OUT 2>&1
+$FSCK $FSCK_OPTS -f $META >> $OUT 2>&1
+cat $OUT >> $LOG
+
+BLKADDR=`printf "0x%x" $blkaddr`
+segno=`get_segno $blkaddr`
+SEGNO=`printf "0x%x" $segno`
+sed "s/_BLKADDR_/$BLKADDR/g" $TESTDIR/expect.in > $TESTDIR/expect
+sed -i "s/_SEGNO_/$SEGNO/g" $TESTDIR/expect
+
+check_result
+cleanup post >> $LOG 2>&1