linux-ext4 - [PATCH 17/29] fuse2fs: make bad magic numbers report a corruption error too

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Message-ID: <174786677853.1383760.10493605429423115597.stgit@frogsfrogsfrogs>
Date: Wed, 21 May 2025 15:39:21 -0700
From: "Darrick J. Wong" <djwong@...nel.org>
To: tytso@....edu
Cc: linux-ext4@...r.kernel.org
Subject: [PATCH 17/29] fuse2fs: make bad magic numbers report a corruption
 error too

From: Darrick J. Wong <djwong@...nel.org>

Report bad magic numbers as corruption errors too.

Signed-off-by: "Darrick J. Wong" <djwong@...nel.org>
---
 misc/fuse2fs.c |   31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)


diff --git a/misc/fuse2fs.c b/misc/fuse2fs.c
index 6b5b19062b4ca1..e73730cfe27130 100644
--- a/misc/fuse2fs.c
+++ b/misc/fuse2fs.c
@@ -4275,6 +4275,37 @@ static int __translate_error(ext2_filsys fs, ext2_ino_t ino, errcode_t err,
 	case EXT2_ET_UNIMPLEMENTED:
 		ret = -EOPNOTSUPP;
 		break;
+	case EXT2_ET_MAGIC_EXT2FS_FILSYS:
+	case EXT2_ET_MAGIC_BADBLOCKS_LIST:
+	case EXT2_ET_MAGIC_BADBLOCKS_ITERATE:
+	case EXT2_ET_MAGIC_INODE_SCAN:
+	case EXT2_ET_MAGIC_IO_CHANNEL:
+	case EXT2_ET_MAGIC_UNIX_IO_CHANNEL:
+	case EXT2_ET_MAGIC_IO_MANAGER:
+	case EXT2_ET_MAGIC_BLOCK_BITMAP:
+	case EXT2_ET_MAGIC_INODE_BITMAP:
+	case EXT2_ET_MAGIC_GENERIC_BITMAP:
+	case EXT2_ET_MAGIC_TEST_IO_CHANNEL:
+	case EXT2_ET_MAGIC_DBLIST:
+	case EXT2_ET_MAGIC_ICOUNT:
+	case EXT2_ET_MAGIC_PQ_IO_CHANNEL:
+	case EXT2_ET_MAGIC_E2IMAGE:
+	case EXT2_ET_MAGIC_INODE_IO_CHANNEL:
+	case EXT2_ET_MAGIC_EXTENT_HANDLE:
+	case EXT2_ET_BAD_MAGIC:
+	case EXT2_ET_MAGIC_EXTENT_PATH:
+	case EXT2_ET_MAGIC_GENERIC_BITMAP64:
+	case EXT2_ET_MAGIC_BLOCK_BITMAP64:
+	case EXT2_ET_MAGIC_INODE_BITMAP64:
+	case EXT2_ET_MAGIC_RESERVED_13:
+	case EXT2_ET_MAGIC_RESERVED_14:
+	case EXT2_ET_MAGIC_RESERVED_15:
+	case EXT2_ET_MAGIC_RESERVED_16:
+	case EXT2_ET_MAGIC_RESERVED_17:
+	case EXT2_ET_MAGIC_RESERVED_18:
+	case EXT2_ET_MAGIC_RESERVED_19:
+	case EXT2_ET_MMP_MAGIC_INVALID:
+	case EXT2_ET_MAGIC_EA_HANDLE:
 	case EXT2_ET_DIR_CORRUPTED:
 	case EXT2_ET_CORRUPT_SUPERBLOCK:
 	case EXT2_ET_RESIZE_INODE_CORRUPT: