xref: /illumos-gate/usr/src/uts/common/fs/smbsrv/smb2_echo.c (revision 93bc28dbaee6387120d48b12b3dc1ba5f7418e6e)
1 /*
2  * This file and its contents are supplied under the terms of the
3  * Common Development and Distribution License ("CDDL"), version 1.0.
4  * You may only use this file in accordance with the terms of version
5  * 1.0 of the CDDL.
6  *
7  * A full copy of the text of the CDDL should have accompanied this
8  * source.  A copy of the CDDL is also available via the Internet at
9  * http://www.illumos.org/license/CDDL.
10  */
11 
12 /*
13  * Copyright 2017 Nexenta Systems, Inc.  All rights reserved.
14  */
15 
16 /*
17  * Dispatch function for SMB2_ECHO
18  */
19 
20 #include <smbsrv/smb2_kproto.h>
21 
22 smb_sdrc_t
smb2_echo(smb_request_t * sr)23 smb2_echo(smb_request_t *sr)
24 {
25 	uint16_t StructSize;
26 	uint16_t reserved;
27 	int rc;
28 
29 	/*
30 	 * SMB2 Echo request
31 	 */
32 	rc = smb_mbc_decodef(
33 	    &sr->smb_data, "ww",
34 	    &StructSize,		/* w */
35 	    &reserved);			/* w */
36 	if (rc)
37 		return (SDRC_ERROR);
38 	if (StructSize != 4)
39 		return (SDRC_ERROR);
40 
41 	DTRACE_SMB2_START(op__Echo, smb_request_t *, sr);
42 	DTRACE_SMB2_DONE(op__Echo, smb_request_t *, sr);
43 
44 	/*
45 	 * SMB2 Echo reply
46 	 */
47 	(void) smb_mbc_encodef(
48 	    &sr->reply, "wwl",
49 	    4,	/* StructSize */	/* w */
50 	    0); /* reserved */		/* w */
51 
52 	return (SDRC_SUCCESS);
53 }
54