Re: [PATCH] cifs: fill TRANS2_QUERY_FILE_INFO ByteCount fields

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On Fri, 28 Jun 2013 11:47:33 +0200
David Disseldorp <ddiss@xxxxxxx> wrote:

> Currently the trans2 ByteCount field is incorrectly left zero in
> TRANS2_QUERY_FILE_INFO info_level=SMB_QUERY_FILE_ALL_INFO and
> info_level=SMB_QUERY_FILE_UNIX_BASIC requests. The field should properly
> reflect the FID, information_level and padding bytes carried in these
> requests.
> 
> Leaving this field zero causes such requests to fail against Novell CIFS
> servers. Other SMB servers (e.g. Samba) use the parameter count fields
> for data length calculations instead, so do not suffer the same fate.
> 
> Signed-off-by: David Disseldorp <ddiss@xxxxxxx>
> ---
>  fs/cifs/cifssmb.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
> index a58dc77..efe794d 100644
> --- a/fs/cifs/cifssmb.c
> +++ b/fs/cifs/cifssmb.c
> @@ -3940,6 +3940,7 @@ QFileInfoRetry:
>  	pSMB->Pad = 0;
>  	pSMB->Fid = netfid;
>  	inc_rfc1001_len(pSMB, byte_count);
> +	pSMB->t2.ByteCount = cpu_to_le16(byte_count);
>  
>  	rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
>  			 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
> @@ -4108,6 +4109,7 @@ UnixQFileInfoRetry:
>  	pSMB->Pad = 0;
>  	pSMB->Fid = netfid;
>  	inc_rfc1001_len(pSMB, byte_count);
> +	pSMB->t2.ByteCount = cpu_to_le16(byte_count);
>  
>  	rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
>  			 (struct smb_hdr *) pSMBr, &bytes_returned, 0);

Looks correct...

Acked-by: Jeff Layton <jlayton@xxxxxxxxxx>
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