On 10/28/2010 09:12 PM, Steve French wrote:
> What is the code flow then on Windows9x, OS/2 or in the EOPNOSUPP
> case? Seems strange that we don't retry with legacy or in the case
> where the dialect (or previous call) shows that we don't support the
> infolevel.
>
If CIFSSMBOpen fails, the callers seem to be fall back to legacy open using
SMBLegacyOpen().
cifs_open()
...
if (tcon->ses->capabilities & CAP_NT_SMBS)
rc = CIFSSMBOpen(xid, tcon, full_path, disposition,
desiredAccess, CREATE_NOT_DIR, &netfid, &oplock, buf,
cifs_sb->local_nls, cifs_sb->mnt_cifs_flags
& CIFS_MOUNT_MAP_SPECIAL_CHR);
else
rc = -EIO; /* no NT SMB support fall into legacy open below */
if (rc == -EIO) {
/* Old server, try legacy style OpenX */
rc = SMBLegacyOpen(xid, tcon, full_path, disposition,
desiredAccess, CREATE_NOT_DIR, &netfid, &oplock, buf,
cifs_sb->local_nls, cifs_sb->mnt_cifs_flags
& CIFS_MOUNT_MAP_SPECIAL_CHR);
}
--
Suresh Jayaraman
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