Hi Steve,
On Mon, 24 Jun 2013 02:19:13 -0500
Steve French <[email protected]> wrote:
> + rc = SendReceive2(xid, ses, iov, num_iovecs, &resp_buftype, 0);
> + rsp = (struct smb2_ioctl_rsp *)iov[0].iov_base;
> +
> + if (rc != 0) {
> + if (tcon)
> + cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
> + goto ioctl_exit;
> + }
IIUC, this throws away any response data if the server reply status
is unsuccessful.
The caller may wish to obtain the response data under certain error
conditions, particularly in the case of FSCTL_SRV_COPYCHUNK, where the
server returns chunk request limits alongside STATUS_INVALID_PARAMETER
in some cases. See MS-SMB2 2.2.32.1 for details.
Cheers, David
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