CVS commit: src/sys/netsmb

[Matthias Scheler <tron%netbsd.org@localhost>]

Module Name:    src
Committed By:   tron
Date:           Sun Oct 18 22:53:36 UTC 2009

Modified Files:
        src/sys/netsmb: smb_smb.c

Log Message:
Fix detection of SMB capabilities according to the CIFS spec:
1.) SMB_CAP_LARGE_FILES advertises support for 64-bit file offsets.
2.) SMB_CAP_LARGE_READX and SMB_CAP_LARGE_WRITEX advertise support for
    large reads and writes (larger than 64KB).
The code previously only used SMB_CAP_LARGE_READX and SMB_CAP_LARGE_WRITEX
which is not correct and doesn't work for the Apple Time Capsule which
only supports SMB_CAP_LARGE_FILES. With these changes SMBFS can copy a
5GB to a Time Capsule and read it back without problems.

Thanks a lot to Allen Briggs for pointing out the broke assumptions
and explaining the CIFS spec to me. This fixes PR kern/42175.


To generate a diff of this commit:
cvs rdiff -u -r1.30 -r1.31 src/sys/netsmb/smb_smb.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.