fs/smbsrv/smb2_set_info.c

/*
 * 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 2014 Nexenta Systems, Inc.  All rights reserved.
 */

/*
 * Dispatch function for SMB2_SET_INFO
 */

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

smb_sdrc_t
smb2_set_info(smb_request_t *sr)
{
    smb_setinfo_t sinfo;
    uint16_t StructSize;
    uint16_t iBufOffset;
    uint32_t iBufLength;
    uint32_t AddlInfo;
    smb2fid_t smb2fid;
    uint32_t status;
    uint8_t InfoType, InfoClass;
    smb_sdrc_t sdrc = SDRC_SUCCESS;
    int rc = 0;

    bzero(&sinfo, sizeof (sinfo));

    /*
     * SMB2 Set Info request
     */
    rc = smb_mbc_decodef(
        &sr->smb_data, "wbblw..lqq",
        &StructSize,        /* w */
        &InfoType,          /* b */
        &InfoClass,         /* b */
        &iBufLength,        /* l */
        &iBufOffset,        /* w */
        /* reserved           .. */
        &AddlInfo,          /* l */
        &smb2fid.persistent,    /* q */
        &smb2fid.temporal);     /* q */
    if (rc || StructSize != 33) {
        sdrc = SDRC_ERROR;
        return (sdrc);
    }

    if (iBufLength > smb2_max_trans) {
        status = NT_STATUS_INVALID_PARAMETER;
        goto errout;
    }

    status = smb2sr_lookup_fid(sr, &smb2fid);
    if (status)
        goto errout;

    sinfo.si_node = sr->fid_ofile->f_node;
    sr->user_cr = sr->fid_ofile->f_cr;

    /*
     * If there's an input buffer, setup a shadow.
     */
    if (iBufLength) {
        rc = MBC_SHADOW_CHAIN(&sinfo.si_data, &sr->smb_data,
            sr->smb2_cmd_hdr + iBufOffset, iBufLength);
        if (rc) {
            status = NT_STATUS_INVALID_PARAMETER;
            goto errout;
        }
    }

    /* No output data. */
    sr->raw_data.max_bytes = 0;

    switch (InfoType) {
    case SMB2_0_INFO_FILE:
        status = smb2_setinfo_file(sr, &sinfo, InfoClass);
        break;
    case SMB2_0_INFO_FILESYSTEM:
        status = smb2_setinfo_fs(sr, &sinfo, InfoClass);
        break;
    case SMB2_0_INFO_SECURITY:
        status = smb2_setinfo_sec(sr, &sinfo, AddlInfo);
        break;
    case SMB2_0_INFO_QUOTA:
        status = smb2_setinfo_quota(sr, &sinfo);
        break;
    default:
        status = NT_STATUS_INVALID_PARAMETER;
        break;
    }

    if (status) {
    errout:
        smb2sr_put_error(sr, status);
        return (sdrc);
    }

    /*
     * SMB2 Query Info reply
     */
    rc = smb_mbc_encodef(
        &sr->reply, "w..",
        2); /* StructSize */    /* w */
    if (rc)
        sdrc = SDRC_ERROR;

    return (sdrc);
}