[f2fs-dev,RFC,13/24] tests: add fsck testcase of fixing nat entry with invalid blkaddr

Commit Message

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

Signed-off-by: Sheng Yong <[e-mail]>
---
 tests/f_nat_bad_blkaddr/README    |  4 ++++
 tests/f_nat_bad_blkaddr/expect.in | 39 +++++++++++++++++++++++++++++++
 tests/f_nat_bad_blkaddr/script    | 35 +++++++++++++++++++++++++++
 3 files changed, 78 insertions(+)
 create mode 100644 tests/f_nat_bad_blkaddr/README
 create mode 100644 tests/f_nat_bad_blkaddr/expect.in
 create mode 100644 tests/f_nat_bad_blkaddr/script

Patch

diff --git a/tests/f_nat_bad_blkaddr/README b/tests/f_nat_bad_blkaddr/README
new file mode 100644
index 000000000000..1545fb0fb342
--- /dev/null
+++ b/tests/f_nat_bad_blkaddr/README
@@ -0,0 +1,4 @@ 
+1. create f2fs image
+2. mount f2fs and create a regular file
+3. inject block_addr in nat entry with value 0x12345 of the regular file
+4. fsck fixes the nat entry by nullifying it
diff --git a/tests/f_nat_bad_blkaddr/expect.in b/tests/f_nat_bad_blkaddr/expect.in
new file mode 100644
index 000000000000..32a3aa4bc77d
--- /dev/null
+++ b/tests/f_nat_bad_blkaddr/expect.in
@@ -0,0 +1,39 @@ 
+Info: Force to fix corruption
+Info: checkpoint state = x :  nat_bits crc compacted_summary unmount
+[ASSERT] (sanity_check_nat: x)  --> blkaddress is not valid. [_BLK_]
+[FIX] (__chk_dentries:x)  --> Unlink [_INO_] - testfile len[0x8], type[0x1]
+
+NID[_INO_] is unreachable, blkaddr:_BLK_
+[FSCK] Unreachable nat entries                        [Fail] [x]
+[FSCK] SIT valid block bitmap checking                [Fail]
+[FSCK] Hard link checking for regular file            [Ok..] [x]
+[FSCK] valid_block_count matching with CP             [Fail] [x]
+[FSCK] valid_node_count matching with CP (de lookup)  [Fail] [x]
+[FSCK] valid_node_count matching with CP (nat lookup) [Ok..] [x]
+[FSCK] valid_inode_count matched with CP              [Fail] [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: write_checkpoint() cur_cp:x
+[FIX] (nullify_nat_entry:x)  --> Remove nid [_INO_] in NAT
+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_nat_bad_blkaddr/script b/tests/f_nat_bad_blkaddr/script
new file mode 100644
index 000000000000..7adb48bf9f0a
--- /dev/null
+++ b/tests/f_nat_bad_blkaddr/script
@@ -0,0 +1,35 @@ 
+#!/bin/bash
+
+DESC="nat entry with invalid block_addr"
+
+. $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
+touch $TESTDIR/mntdir/testfile
+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 $TESTDIR/mntdir
+
+$INJECT --nat 0 --nid $ino --mb block_addr --val 0x12345 $META >> $LOG 2>&1
+$FSCK $FSCK_OPTS -f $META > $OUT 2>&1
+$FSCK $FSCK_OPTS -f $META >> $OUT 2>&1
+cat $OUT >> $LOG
+
+INO=`printf "0x%x" $ino`
+sed "s/_INO_/$INO/g" $TESTDIR/expect.in > $TESTDIR/expect
+sed -i "s/_BLK_/0x12345/g" $TESTDIR/expect
+
+check_result
+cleanup post >> $LOG 2>&1