/*
 * 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.
 * Copyright 2016 Syneto S.R.L. All rights reserved.
 * Copyright 2023 RackTop Systems, Inc.
 */

/*
 * Dispatch function for SMB2_FLUSH
 */

#include <smbsrv/smb2_kproto.h>
#include <smbsrv/smb_fsops.h>

smb_sdrc_t
smb2_flush(smb_request_t *sr)
{
        uint16_t StructSize;
        uint16_t reserved1;
        uint32_t reserved2;
        smb2fid_t smb2fid;
        uint32_t status;
        int rc = 0;

        /*
         * Decode SMB2 Flush request
         */
        rc = smb_mbc_decodef(
            &sr->smb_data, "wwlqq",
            &StructSize,                /* w */
            &reserved1,                 /* w */
            &reserved2,                 /* l */
            &smb2fid.persistent,        /* q */
            &smb2fid.temporal);         /* q */
        if (rc || StructSize != 24)
                return (SDRC_ERROR);

        /*
         * Want FID lookup before the start probe.
         */
        status = smb2sr_lookup_fid(sr, &smb2fid);
        DTRACE_SMB2_START(op__Flush, smb_request_t *, sr);

        if (status == 0)
                smb_ofile_flush(sr, sr->fid_ofile);

        sr->smb2_status = status;
        DTRACE_SMB2_DONE(op__Flush, smb_request_t *, sr);

        if (status) {
                smb2sr_put_error(sr, status);
                return (SDRC_SUCCESS);
        }

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

        return (SDRC_SUCCESS);
}