smbtorture tests for SMB3 OFFLOAD_READ / OFFLOAD_WRITE?

[David Disseldorp]

Thanks a lot for sending these through, Gordon. I'll take a closer look
in the coming days, but still have a few initial questions:
- Is there a way of testing for server support, aside from issuing one
  of the READ/WRITE ioctls? We'll need to skip these tests for Samba
  selftest invocations.

On Mon, 26 Sep 2016 17:59:45 -0400, Gordon Ross wrote:

> +static bool test_ioctl_odx_write_simple(struct torture_context *torture,
> +					 struct smb2_tree *tree)
> +{
> +	struct smb2_handle src_h;
> +	struct smb2_handle dest_h;
> +	NTSTATUS status;
> +	uint32_t fsize = 0x4000;
...
> +	ok = test_setup_create_fill(torture, tree, tmp_ctx, FNAME,
> +				    &src_h, fsize-64, SEC_RIGHTS_FILE_ALL,
> +				    FILE_ATTRIBUTE_NORMAL);
> +	torture_assert(torture, ok, "src file create fill");

IIUC, this test is filling the source to 16320 bytes, then attempting to
copy 16384 bytes into the 16384 dest file. Is the short-read ignored?
Also, I would expect the pattern check to choke on the last (zeroed) 64
bytes of the dest file:

...
> +	ok = check_pattern(torture, tree, tmp_ctx, dest_h, 0, fsize, 0);
> +	if (!ok) {
> +		torture_fail(torture, "inconsistent file data");
> +	}

Does the test pass against Windows Server?

Cheers, David