xref: /illumos-gate/usr/src/uts/common/fs/smbsrv/smb2_echo.c (revision 93bc28db)

/*
 * This file and its contents are supplied under the terms of the
 * Common Development and Distribution License ("CDDL"), version 1.0.
 * You may only use this file in accordance with the terms of version
 * 1.0 of the CDDL.
 *
 * A full copy of the text of the CDDL should have accompanied this
 * source.  A copy of the CDDL is also available via the Internet at
 * http://www.illumos.org/license/CDDL.
 */

/*
 * Copyright 2017 Nexenta Systems, Inc.  All rights reserved.
 */

/*
 * Dispatch function for SMB2_ECHO
 */

#include <smbsrv/smb2_kproto.h>

smb_sdrc_t
smb2_echo(smb_request_t *sr)
{
	uint16_t StructSize;
	uint16_t reserved;
	int rc;

	/*
	 * SMB2 Echo request
	 */
	rc = smb_mbc_decodef(
	    &sr->smb_data, "ww",
	    &StructSize,		/* w */
	    &reserved);			/* w */
	if (rc)
		return (SDRC_ERROR);
	if (StructSize != 4)
		return (SDRC_ERROR);

	DTRACE_SMB2_START(op__Echo, smb_request_t *, sr);
	DTRACE_SMB2_DONE(op__Echo, smb_request_t *, sr);

	/*
	 * SMB2 Echo reply
	 */
	(void) smb_mbc_encodef(
	    &sr->reply, "wwl",
	    4,	/* StructSize */	/* w */
	    0); /* reserved */		/* w */

	return (SDRC_SUCCESS);
}