[Ocfs2-tools-devel] [PATCH 5/8] Mess up inode ECC

[Goldwyn Rodrigues]

Signed-off-by: Goldwyn Rodrigues <rgoldwyn at suse.de>
---
 fswreck/corrupt.c           |    3 +++
 fswreck/include/fsck_type.h |    1 +
 fswreck/inode.c             |   14 ++++++++++++--
 fswreck/main.c              |    2 ++
 4 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/fswreck/corrupt.c b/fswreck/corrupt.c
index 03e1acd..86c2b47 100644
--- a/fswreck/corrupt.c
+++ b/fswreck/corrupt.c
@@ -124,6 +124,9 @@ void corrupt_file(ocfs2_filesys *fs, enum
fsck_type type, uint16_t slotnum)
 	case INODE_COUNT:
 		func = mess_up_inode_field;
 		break;
+	case INODE_INVALID_ECC:
+		func = mess_up_inode_field;
+		break;
 	case INODE_NOT_CONNECTED:
 		func = mess_up_inode_not_connected;
 		break;
diff --git a/fswreck/include/fsck_type.h b/fswreck/include/fsck_type.h
index e15940b..a5c3989 100644
--- a/fswreck/include/fsck_type.h
+++ b/fswreck/include/fsck_type.h
@@ -163,6 +163,7 @@ enum fsck_type
 	REFCOUNT_COUNT_INVALID,
 	DUP_CLUSTERS_ADD_REFCOUNT,
 	SUPERBLOCK_INVALID_ECC,
+	INODE_INVALID_ECC,
 	NUM_FSCK_TYPE
 };

diff --git a/fswreck/inode.c b/fswreck/inode.c
index 56d9e1b..0fccc65 100644
--- a/fswreck/inode.c
+++ b/fswreck/inode.c
@@ -125,7 +125,7 @@ static void damage_inode(ocfs2_filesys *fs, uint64_t blkno,
 	case INODE_COUNT:
 		di->i_links_count = 0;
 		fprintf(stdout, "INODE_COUNT: "
-			"Corrupte inode#%"PRIu64", set link count to 0\n",
+			"Corrupt inode#%"PRIu64", set link count to 0\n",
 			blkno);
 		break;
 	case REFCOUNT_FLAG_INVALID:
@@ -141,13 +141,23 @@ static void damage_inode(ocfs2_filesys *fs,
uint64_t blkno,
 			"whose i_refcount_loc has been messed up.\n",
 			blkno);
 		break;
+	case INODE_INVALID_ECC:
+		di->i_check.bc_ecc ^= 7;
+		di->i_check.bc_crc32e ^= 15;
+		fprintf(stdout, "INODE_INVALID_ECC: "
+			"Created an inode#%"PRIu64","
+			"with i_check messed up.\n",
+			blkno);
+		break;
 	default:
 		FSWRK_FATAL("Invalid type[%d]\n", type);
 	}

-	ret = ocfs2_write_inode(fs, blkno, buf);
+	ocfs2_swap_inode_from_cpu(fs, di);
+	ret = io_write_block(fs->fs_io, blkno, 1, (char *)di);
 	if (ret)
 		FSWRK_COM_FATAL(progname, ret);
+	fs->fs_flags |= OCFS2_FLAG_CHANGED;

 	if (buf)
 		ocfs2_free(&buf);
diff --git a/fswreck/main.c b/fswreck/main.c
index 1fffd37..5584459 100644
--- a/fswreck/main.c
+++ b/fswreck/main.c
@@ -264,6 +264,8 @@ static struct prompt_code prompt_codes[NUM_FSCK_TYPE] = {
 			   "Create a refcounted inode on a unsupported volume"),
 	define_prompt_code(REFCOUNT_LOC_INVALID, corrupt_file,
 			   "Corrupt a refcounted file's refcount location"),
+	define_prompt_code(INODE_INVALID_ECC, corrupt_file,
+			   "Corrupt an inode's ECC"),
 	define_prompt_code(RB_BLKNO, corrupt_refcount,
 			   "Corrupt a refcount block's rf_blkno"),
 	define_prompt_code(RB_GEN, corrupt_refcount,
-- 
1.7.6