[f2fs-dev,RFC,09/24] tests: add fsck testcase of fixing bad super magic

Commit Message

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

Signed-off-by: Sheng Yong <[e-mail]>
---
 tests/f_sb_bad_magic/README    |  3 +++
 tests/f_sb_bad_magic/expect.in | 40 ++++++++++++++++++++++++++++++++++
 tests/f_sb_bad_magic/script    | 16 ++++++++++++++
 3 files changed, 59 insertions(+)
 create mode 100644 tests/f_sb_bad_magic/README
 create mode 100644 tests/f_sb_bad_magic/expect.in
 create mode 100644 tests/f_sb_bad_magic/script

Patch

diff --git a/tests/f_sb_bad_magic/README b/tests/f_sb_bad_magic/README
new file mode 100644
index 000000000000..a8887ebd2dfb
--- /dev/null
+++ b/tests/f_sb_bad_magic/README
@@ -0,0 +1,3 @@ 
+1. create f2fs image
+2. inject magic in sb 1 with value 0x12345
+3. fsck fixes bad magic by copying sb 2
diff --git a/tests/f_sb_bad_magic/expect.in b/tests/f_sb_bad_magic/expect.in
new file mode 100644
index 000000000000..7e2d55b10d5c
--- /dev/null
+++ b/tests/f_sb_bad_magic/expect.in
@@ -0,0 +1,40 @@ 
+Info: Force to fix corruption
+Magic Mismatch, valid(0xf2f52010) - read(0x12345)
+	Can't find a valid F2FS superblock at 0x0
+Looking for secondary superblock assuming 4K Block Size
+Info: Write valid nat_bits in checkpoint
+Info: checkpoint state = x :  nat_bits compacted_summary 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..]
+Info: Duplicate valid checkpoint to mirror position x -> x
+Info: Write valid nat_bits in checkpoint
+Info: write_checkpoint() cur_cp:x
+Info: Write valid nat_bits in checkpoint
+Info: fix_checkpoint() cur_cp:x
+[update_superblock: x] Info: Done to update superblock
+
+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_sb_bad_magic/script b/tests/f_sb_bad_magic/script
new file mode 100644
index 000000000000..3fca2b66b383
--- /dev/null
+++ b/tests/f_sb_bad_magic/script
@@ -0,0 +1,16 @@ 
+#!/bin/bash
+
+DESC="superblock[1] with invalid magic number"
+
+. $TOPDIR/tests/helpers
+
+cleanup pre > $LOG 2>&1
+make_f2fs >> $LOG 2>&1
+
+$INJECT --sb 1 --mb magic --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
+
+check_result
+cleanup post >> $LOG 2>&1