xref: /illumos-gate/usr/src/uts/common/fs/smbsrv/smb2_flush.c (revision 13b136d3061155363c62c9f6568d25b8b27da8f6)
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  * Copyright 2016 Syneto S.R.L. All rights reserved.
15  */
16 
17 /*
18  * Dispatch function for SMB2_FLUSH
19  */
20 
21 #include <smbsrv/smb2_kproto.h>
22 #include <smbsrv/smb_fsops.h>
23 
24 smb_sdrc_t
25 smb2_flush(smb_request_t *sr)
26 {
27 	uint16_t StructSize;
28 	uint16_t reserved1;
29 	uint32_t reserved2;
30 	smb2fid_t smb2fid;
31 	uint32_t status;
32 	int rc = 0;
33 
34 	/*
35 	 * Decode SMB2 Flush request
36 	 */
37 	rc = smb_mbc_decodef(
38 	    &sr->smb_data, "wwlqq",
39 	    &StructSize,		/* w */
40 	    &reserved1,			/* w */
41 	    &reserved2,			/* l */
42 	    &smb2fid.persistent,	/* q */
43 	    &smb2fid.temporal);		/* q */
44 	if (rc || StructSize != 24)
45 		return (SDRC_ERROR);
46 
47 	/*
48 	 * Want FID lookup before the start probe.
49 	 */
50 	status = smb2sr_lookup_fid(sr, &smb2fid);
51 	DTRACE_SMB2_START(op__Flush, smb_request_t *, sr);
52 
53 	if (status == 0)
54 		smb_ofile_flush(sr, sr->fid_ofile);
55 
56 	sr->smb2_status = status;
57 	DTRACE_SMB2_DONE(op__Flush, smb_request_t *, sr);
58 
59 	if (status) {
60 		smb2sr_put_error(sr, status);
61 		return (SDRC_SUCCESS);
62 	}
63 
64 	/*
65 	 * SMB2 Flush reply
66 	 */
67 	(void) smb_mbc_encodef(
68 	    &sr->reply, "wwl",
69 	    4,	/* StructSize */	/* w */
70 	    0); /* reserved */		/* w */
71 
72 	return (SDRC_SUCCESS);
73 }
74