fs/smbsrv/smb_set_information2.c

	smb_set_information2.c revision 2c2961f8403049d948b9f3e6c35d6488b6b7e1aa
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 * SMB: set_information2
 *
 *  Client Request                     Description
 *  ================================== =================================
 *
 *  UCHAR WordCount;                   Count of parameter words = 7
 *  USHORT Fid;                        File handle
 *  SMB_DATE CreationDate;
 *  SMB_TIME CreationTime;
 *  SMB_DATE LastAccessDate;
 *  SMB_TIME LastAccessTime;
 *  SMB_DATE LastWriteDate;
 *  SMB_TIME LastWriteTime;
 *  USHORT ByteCount;                  Count of data bytes = 0
 *
 * SMB_COM_SET_INFORMATION2 sets information about the file represented by
 * Fid.  The target file is updated from the values specified.  A date or
 * time value or zero indicates to leave that specific date and time
 * unchanged.
 *
 *  Server Response                    Description
 *  ================================== =================================
 *
 *  UCHAR WordCount;                   Count of parameter words = 0
 *  USHORT ByteCount;                  Count of data bytes = 0
 *
 * Fid must be open with (at least) write permission.
 */

#include <smbsrv/smb_incl.h>

smb_sdrc_t
smb_pre_set_information2(smb_request_t *sr)
{
	DTRACE_SMB_1(op__SetInformation2__start, smb_request_t *, sr);
	return (SDRC_SUCCESS);
}

void
smb_post_set_information2(smb_request_t *sr)
{
	DTRACE_SMB_1(op__SetInformation2__done, smb_request_t *, sr);
}

smb_sdrc_t
smb_com_set_information2(smb_request_t *sr)
{
	uint32_t creation, last_access, last_write;  /* times */
	timestruc_t		crtime, mtime, atime;
	unsigned int 		what = 0;
	struct smb_node		*node;
	int			rc;

	rc = smbsr_decode_vwv(sr, "wyyy", &sr->smb_fid,
	    &creation, &last_access, &last_write);
	if (rc != 0)
		return (SDRC_ERROR);

	smbsr_lookup_file(sr);
	if (sr->fid_ofile == NULL) {
		smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid);
		return (SDRC_ERROR);
	}

	sr->user_cr = smb_ofile_getcred(sr->fid_ofile);

	node = sr->fid_ofile->f_node;

	if (node == 0 || sr->fid_ofile->f_ftype != SMB_FTYPE_DISK) {
		smbsr_error(sr, NT_STATUS_ACCESS_DENIED, ERRDOS, ERRnoaccess);
		return (SDRC_ERROR);
	}

	/*
	 * The behaviour when the time field is set to -1
	 * is not documented but is generally treated like 0,
	 * meaning that that server file system assigned value
	 * need not be changed.
	 */
	crtime.tv_nsec = mtime.tv_nsec = atime.tv_nsec = 0;
	if (last_write != 0 && last_write != UINT_MAX) {
		mtime.tv_sec = smb_local2gmt(sr, last_write);
		what |= SMB_AT_MTIME;
	}

	if (creation != 0 && creation != UINT_MAX) {
		crtime.tv_sec = smb_local2gmt(sr, creation);
		what |= SMB_AT_CRTIME;
	}

	if (last_access != 0 && last_access != UINT_MAX) {
		atime.tv_sec = smb_local2gmt(sr, last_access);
		what |= SMB_AT_ATIME;
	}

	smb_node_set_time(node, &crtime, &mtime, &atime, 0, what);
	rc = smb_sync_fsattr(sr, sr->user_cr, node);
	if (rc) {
		smbsr_errno(sr, rc);
		return (SDRC_ERROR);
	}

	rc = smbsr_encode_empty_result(sr);
	return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
}