[PATCHSET] honour output buffer length for SMB2 GetInfo

[Ralph Wuerthner]

Hi,

please see attached patchset to honour output buffer length set by the 
client for SMB2 GetInfo requests. The patchset also enhances GetInfo for 
file system information classes SMB_QUERY_FS_VOLUME_INFO and 
SMB_QUERY_FS_ATTRIBUTE_INFO to return partial, but valid data in case 
output buffer length is too small. This behaviour is documented in MS-FSCC.

We had a customer defect where a client submitted a GetInfo 
SMB_QUERY_FS_VOLUME_INFO request with a output buffer length of 24 
bytes. Samba responded with a full length response of 40 bytes which 
resulted in a client error.

Regards

     Ralph
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