[1/3] btrfs-progs: check: check symlinks with append/immutable flags
diff mbox

Message ID 20180514102922.8840-2-suy.fnst@cn.fujitsu.com
State New
Headers show

Commit Message

Su Yue May 14, 2018, 10:29 a.m. UTC
Define new macro I_ERR_ODD_INODE_FLAGS to represents odd inode flags.

Symlinks should never have append/immutable flags.
While processing inodes, if found a symlink with append/immutable
flags, mark the inode record with I_ERR_ODD_INODE_FLAGS.

This is for original mode.

Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com>
---
 check/main.c          | 7 +++++++
 check/mode-original.h | 1 +
 2 files changed, 8 insertions(+)

Comments

Nikolay Borisov May 14, 2018, 11:18 a.m. UTC | #1
On 14.05.2018 13:29, Su Yue wrote:
> Define new macro I_ERR_ODD_INODE_FLAGS to represents odd inode flags.
> 
> Symlinks should never have append/immutable flags.
> While processing inodes, if found a symlink with append/immutable
> flags, mark the inode record with I_ERR_ODD_INODE_FLAGS.
> 
> This is for original mode.
> 
> Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com>
> ---
>  check/main.c          | 7 +++++++
>  check/mode-original.h | 1 +
>  2 files changed, 8 insertions(+)
> 
> diff --git a/check/main.c b/check/main.c
> index 68da994f7ae0..f5f52c406046 100644
> --- a/check/main.c
> +++ b/check/main.c
> @@ -576,6 +576,8 @@ static void print_inode_error(struct btrfs_root *root, struct inode_record *rec)
>  		fprintf(stderr, ", link count wrong");
>  	if (errors & I_ERR_FILE_EXTENT_ORPHAN)
>  		fprintf(stderr, ", orphan file extent");
> +	if (errors & I_ERR_ODD_INODE_FLAGS)
> +		fprintf(stderr, ", odd inode flags");
>  	fprintf(stderr, "\n");
>  	/* Print the orphan extents if needed */
>  	if (errors & I_ERR_FILE_EXTENT_ORPHAN)
> @@ -805,6 +807,7 @@ static int process_inode_item(struct extent_buffer *eb,
>  {
>  	struct inode_record *rec;
>  	struct btrfs_inode_item *item;
> +	u64 flags;
>  
>  	rec = active_node->current;
>  	BUG_ON(rec->ino != key->objectid || rec->refs > 1);
> @@ -822,6 +825,10 @@ static int process_inode_item(struct extent_buffer *eb,
>  	rec->found_inode_item = 1;
>  	if (rec->nlink == 0)
>  		rec->errors |= I_ERR_NO_ORPHAN_ITEM;
> +	flags = btrfs_inode_flags(eb, item);
> +	if (rec->imode & BTRFS_FT_SYMLINK &&
> +	    flags & (BTRFS_INODE_IMMUTABLE | BTRFS_INODE_APPEND))
> +		rec->errors = I_ERR_ODD_INODE_FLAGS;
>  	maybe_free_inode_rec(&active_node->inode_cache, rec);
>  	return 0;
>  }
> diff --git a/check/mode-original.h b/check/mode-original.h
> index 368de692fdd1..13cfa5b9e1b3 100644
> --- a/check/mode-original.h
> +++ b/check/mode-original.h
> @@ -186,6 +186,7 @@ struct file_extent_hole {
>  #define I_ERR_LINK_COUNT_WRONG		(1 << 13)
>  #define I_ERR_FILE_EXTENT_ORPHAN	(1 << 14)
>  #define I_ERR_FILE_EXTENT_TOO_LARGE	(1 << 15)
> +#define I_ERR_ODD_INODE_FLAGS		(1 << 16)

I don't like the name of the flag. How about:

I_ERR_INVALID_SYMLINK_FLAGS

>  
>  struct inode_record {
>  	struct list_head backrefs;
> 
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Qu Wenruo May 14, 2018, 11:22 a.m. UTC | #2
On 2018年05月14日 18:29, Su Yue wrote:
> Define new macro I_ERR_ODD_INODE_FLAGS to represents odd inode flags.
> 
> Symlinks should never have append/immutable flags.
> While processing inodes, if found a symlink with append/immutable
> flags, mark the inode record with I_ERR_ODD_INODE_FLAGS.
> 
> This is for original mode.
> 
> Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com>
> ---
>  check/main.c          | 7 +++++++
>  check/mode-original.h | 1 +
>  2 files changed, 8 insertions(+)
> 
> diff --git a/check/main.c b/check/main.c
> index 68da994f7ae0..f5f52c406046 100644
> --- a/check/main.c
> +++ b/check/main.c
> @@ -576,6 +576,8 @@ static void print_inode_error(struct btrfs_root *root, struct inode_record *rec)
>  		fprintf(stderr, ", link count wrong");
>  	if (errors & I_ERR_FILE_EXTENT_ORPHAN)
>  		fprintf(stderr, ", orphan file extent");
> +	if (errors & I_ERR_ODD_INODE_FLAGS)
> +		fprintf(stderr, ", odd inode flags");
>  	fprintf(stderr, "\n");
>  	/* Print the orphan extents if needed */
>  	if (errors & I_ERR_FILE_EXTENT_ORPHAN)
> @@ -805,6 +807,7 @@ static int process_inode_item(struct extent_buffer *eb,
>  {
>  	struct inode_record *rec;
>  	struct btrfs_inode_item *item;
> +	u64 flags;
>  
>  	rec = active_node->current;
>  	BUG_ON(rec->ino != key->objectid || rec->refs > 1);
> @@ -822,6 +825,10 @@ static int process_inode_item(struct extent_buffer *eb,
>  	rec->found_inode_item = 1;
>  	if (rec->nlink == 0)
>  		rec->errors |= I_ERR_NO_ORPHAN_ITEM;
> +	flags = btrfs_inode_flags(eb, item);
> +	if (rec->imode & BTRFS_FT_SYMLINK &&
> +	    flags & (BTRFS_INODE_IMMUTABLE | BTRFS_INODE_APPEND))
> +		rec->errors = I_ERR_ODD_INODE_FLAGS;

Shouldn't it be "|=" instead of "=" ?

Thanks,
Qu

>  	maybe_free_inode_rec(&active_node->inode_cache, rec);
>  	return 0;
>  }
> diff --git a/check/mode-original.h b/check/mode-original.h
> index 368de692fdd1..13cfa5b9e1b3 100644
> --- a/check/mode-original.h
> +++ b/check/mode-original.h
> @@ -186,6 +186,7 @@ struct file_extent_hole {
>  #define I_ERR_LINK_COUNT_WRONG		(1 << 13)
>  #define I_ERR_FILE_EXTENT_ORPHAN	(1 << 14)
>  #define I_ERR_FILE_EXTENT_TOO_LARGE	(1 << 15)
> +#define I_ERR_ODD_INODE_FLAGS		(1 << 16)
>  
>  struct inode_record {
>  	struct list_head backrefs;
>
Damenly Su May 14, 2018, 11:52 a.m. UTC | #3
On 2018/5/14 7:22 PM, Qu Wenruo wrote:
> 
> 
> On 2018年05月14日 18:29, Su Yue wrote:
>> Define new macro I_ERR_ODD_INODE_FLAGS to represents odd inode flags.
>>
>> Symlinks should never have append/immutable flags.
>> While processing inodes, if found a symlink with append/immutable
>> flags, mark the inode record with I_ERR_ODD_INODE_FLAGS.
>>
>> This is for original mode.
>>
>> Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com>
>> ---
>>  check/main.c          | 7 +++++++
>>  check/mode-original.h | 1 +
>>  2 files changed, 8 insertions(+)
>>
>> diff --git a/check/main.c b/check/main.c
>> index 68da994f7ae0..f5f52c406046 100644
>> --- a/check/main.c
>> +++ b/check/main.c
>> @@ -576,6 +576,8 @@ static void print_inode_error(struct btrfs_root *root, struct inode_record *rec)
>>  		fprintf(stderr, ", link count wrong");
>>  	if (errors & I_ERR_FILE_EXTENT_ORPHAN)
>>  		fprintf(stderr, ", orphan file extent");
>> +	if (errors & I_ERR_ODD_INODE_FLAGS)
>> +		fprintf(stderr, ", odd inode flags");
>>  	fprintf(stderr, "\n");
>>  	/* Print the orphan extents if needed */
>>  	if (errors & I_ERR_FILE_EXTENT_ORPHAN)
>> @@ -805,6 +807,7 @@ static int process_inode_item(struct extent_buffer *eb,
>>  {
>>  	struct inode_record *rec;
>>  	struct btrfs_inode_item *item;
>> +	u64 flags;
>>  
>>  	rec = active_node->current;
>>  	BUG_ON(rec->ino != key->objectid || rec->refs > 1);
>> @@ -822,6 +825,10 @@ static int process_inode_item(struct extent_buffer *eb,
>>  	rec->found_inode_item = 1;
>>  	if (rec->nlink == 0)
>>  		rec->errors |= I_ERR_NO_ORPHAN_ITEM;
>> +	flags = btrfs_inode_flags(eb, item);
>> +	if (rec->imode & BTRFS_FT_SYMLINK &&
>> +	    flags & (BTRFS_INODE_IMMUTABLE | BTRFS_INODE_APPEND))
>> +		rec->errors = I_ERR_ODD_INODE_FLAGS;
> 
> Shouldn't it be "|=" instead of "=" ?
> 
> Thanks,
> Qu

Oh... Should be "|=".

Thanks,
Su

> 
>>  	maybe_free_inode_rec(&active_node->inode_cache, rec);
>>  	return 0;
>>  }
>> diff --git a/check/mode-original.h b/check/mode-original.h
>> index 368de692fdd1..13cfa5b9e1b3 100644
>> --- a/check/mode-original.h
>> +++ b/check/mode-original.h
>> @@ -186,6 +186,7 @@ struct file_extent_hole {
>>  #define I_ERR_LINK_COUNT_WRONG		(1 << 13)
>>  #define I_ERR_FILE_EXTENT_ORPHAN	(1 << 14)
>>  #define I_ERR_FILE_EXTENT_TOO_LARGE	(1 << 15)
>> +#define I_ERR_ODD_INODE_FLAGS		(1 << 16)
>>  
>>  struct inode_record {
>>  	struct list_head backrefs;
>>
>
Damenly Su May 14, 2018, 12:12 p.m. UTC | #4
On 2018/5/14 7:18 PM, Nikolay Borisov wrote:
> 
> 
> On 14.05.2018 13:29, Su Yue wrote:
>> Define new macro I_ERR_ODD_INODE_FLAGS to represents odd inode flags.
>>
>> Symlinks should never have append/immutable flags.
>> While processing inodes, if found a symlink with append/immutable
>> flags, mark the inode record with I_ERR_ODD_INODE_FLAGS.
>>
>> This is for original mode.
>>
>> Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com>
>> ---
>>  check/main.c          | 7 +++++++
>>  check/mode-original.h | 1 +
>>  2 files changed, 8 insertions(+)
>>
>> diff --git a/check/main.c b/check/main.c
>> index 68da994f7ae0..f5f52c406046 100644
>> --- a/check/main.c
>> +++ b/check/main.c
>> @@ -576,6 +576,8 @@ static void print_inode_error(struct btrfs_root *root, struct inode_record *rec)
>>  		fprintf(stderr, ", link count wrong");
>>  	if (errors & I_ERR_FILE_EXTENT_ORPHAN)
>>  		fprintf(stderr, ", orphan file extent");
>> +	if (errors & I_ERR_ODD_INODE_FLAGS)
>> +		fprintf(stderr, ", odd inode flags");
>>  	fprintf(stderr, "\n");
>>  	/* Print the orphan extents if needed */
>>  	if (errors & I_ERR_FILE_EXTENT_ORPHAN)
>> @@ -805,6 +807,7 @@ static int process_inode_item(struct extent_buffer *eb,
>>  {
>>  	struct inode_record *rec;
>>  	struct btrfs_inode_item *item;
>> +	u64 flags;
>>  
>>  	rec = active_node->current;
>>  	BUG_ON(rec->ino != key->objectid || rec->refs > 1);
>> @@ -822,6 +825,10 @@ static int process_inode_item(struct extent_buffer *eb,
>>  	rec->found_inode_item = 1;
>>  	if (rec->nlink == 0)
>>  		rec->errors |= I_ERR_NO_ORPHAN_ITEM;
>> +	flags = btrfs_inode_flags(eb, item);
>> +	if (rec->imode & BTRFS_FT_SYMLINK &&
>> +	    flags & (BTRFS_INODE_IMMUTABLE | BTRFS_INODE_APPEND))
>> +		rec->errors = I_ERR_ODD_INODE_FLAGS;
>>  	maybe_free_inode_rec(&active_node->inode_cache, rec);
>>  	return 0;
>>  }
>> diff --git a/check/mode-original.h b/check/mode-original.h
>> index 368de692fdd1..13cfa5b9e1b3 100644
>> --- a/check/mode-original.h
>> +++ b/check/mode-original.h
>> @@ -186,6 +186,7 @@ struct file_extent_hole {
>>  #define I_ERR_LINK_COUNT_WRONG		(1 << 13)
>>  #define I_ERR_FILE_EXTENT_ORPHAN	(1 << 14)
>>  #define I_ERR_FILE_EXTENT_TOO_LARGE	(1 << 15)
>> +#define I_ERR_ODD_INODE_FLAGS		(1 << 16)
> 
> I don't like the name of the flag. How about:
> 
> I_ERR_INVALID_SYMLINK_FLAGS
> 
Before, original mode doesn't check inode flags.
So I'd rather to keep INODE_FLAGS for further use.

As for "ODD" part, it is just inherited from name style of above lines.
I don't like "ODD" too much either.
Anyway, thanks.

Su
>>  
>>  struct inode_record {
>>  	struct list_head backrefs;
>>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

Patch
diff mbox

diff --git a/check/main.c b/check/main.c
index 68da994f7ae0..f5f52c406046 100644
--- a/check/main.c
+++ b/check/main.c
@@ -576,6 +576,8 @@  static void print_inode_error(struct btrfs_root *root, struct inode_record *rec)
 		fprintf(stderr, ", link count wrong");
 	if (errors & I_ERR_FILE_EXTENT_ORPHAN)
 		fprintf(stderr, ", orphan file extent");
+	if (errors & I_ERR_ODD_INODE_FLAGS)
+		fprintf(stderr, ", odd inode flags");
 	fprintf(stderr, "\n");
 	/* Print the orphan extents if needed */
 	if (errors & I_ERR_FILE_EXTENT_ORPHAN)
@@ -805,6 +807,7 @@  static int process_inode_item(struct extent_buffer *eb,
 {
 	struct inode_record *rec;
 	struct btrfs_inode_item *item;
+	u64 flags;
 
 	rec = active_node->current;
 	BUG_ON(rec->ino != key->objectid || rec->refs > 1);
@@ -822,6 +825,10 @@  static int process_inode_item(struct extent_buffer *eb,
 	rec->found_inode_item = 1;
 	if (rec->nlink == 0)
 		rec->errors |= I_ERR_NO_ORPHAN_ITEM;
+	flags = btrfs_inode_flags(eb, item);
+	if (rec->imode & BTRFS_FT_SYMLINK &&
+	    flags & (BTRFS_INODE_IMMUTABLE | BTRFS_INODE_APPEND))
+		rec->errors = I_ERR_ODD_INODE_FLAGS;
 	maybe_free_inode_rec(&active_node->inode_cache, rec);
 	return 0;
 }
diff --git a/check/mode-original.h b/check/mode-original.h
index 368de692fdd1..13cfa5b9e1b3 100644
--- a/check/mode-original.h
+++ b/check/mode-original.h
@@ -186,6 +186,7 @@  struct file_extent_hole {
 #define I_ERR_LINK_COUNT_WRONG		(1 << 13)
 #define I_ERR_FILE_EXTENT_ORPHAN	(1 << 14)
 #define I_ERR_FILE_EXTENT_TOO_LARGE	(1 << 15)
+#define I_ERR_ODD_INODE_FLAGS		(1 << 16)
 
 struct inode_record {
 	struct list_head backrefs;