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/*
* 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 2019 Nexenta by DDN, Inc. All rights reserved.
* Copyright 2022 RackTop Systems, Inc.
*/
/*
* Support functions for smb2_ioctl/fsctl categories:
* FILE_DEVICE_FILE_SYSTEM (9)
* FILE_DEVICE_NETWORK_FILE_SYSTEM (20)
*/
#include <smbsrv/smb2_kproto.h>
#include <smbsrv/smb_fsops.h>
#include <smb/winioctl.h>
static uint32_t
smb2_fsctl_invalid(smb_request_t *sr, smb_fsctl_t *fsctl)
{
return (NT_STATUS_INVALID_DEVICE_REQUEST);
}
static uint32_t
smb2_fsctl_notsup(smb_request_t *sr, smb_fsctl_t *fsctl)
{
return (NT_STATUS_NOT_SUPPORTED);
}
/*
* Same as smb2_fsctl_invalid, but make some noise (if DEBUG)
* so we'll learn about new fsctl codes clients start using.
*/
/* ARGSUSED */
static uint32_t
smb2_fsctl_unknown(smb_request_t *sr, smb_fsctl_t *fsctl)
{
#ifdef DEBUG
cmn_err(CE_NOTE, "smb2_fsctl_unknown: code 0x%x", fsctl->CtlCode);
#endif
return (NT_STATUS_INVALID_DEVICE_REQUEST);
}
/*
* FSCTL_GET_COMPRESSION
*/
static uint32_t
smb2_fsctl_get_compression(smb_request_t *sr, smb_fsctl_t *fsctl)
{
_NOTE(ARGUNUSED(sr))
uint16_t compress_state = 0;
int rc;
rc = smb_mbc_encodef(fsctl->in_mbc, "w",
compress_state);
if (rc != 0)
return (NT_STATUS_BUFFER_OVERFLOW);
return (NT_STATUS_SUCCESS);
}
/*
* FSCTL_SET_COMPRESSION
*/
static uint32_t
smb2_fsctl_set_compression(smb_request_t *sr, smb_fsctl_t *fsctl)
{
_NOTE(ARGUNUSED(sr))
uint16_t compress_state;
(void) smb_mbc_decodef(fsctl->in_mbc, "w",
&compress_state);
if (compress_state > 0)
return (NT_STATUS_COMPRESSION_DISABLED);
return (NT_STATUS_SUCCESS);
}
/*
* FSCTL_SRV_REQUEST_RESUME_KEY
*
* The returned data is an (opaque to the client) 24-byte blob
* in which we stash the SMB2 "file ID" (both parts). Later,
* copychunk may lookup the ofile using that file ID.
* See: smb2_fsctl_copychunk()
*
* Note that Mac clients make this request on a directory
* (even though this only makes sense on a file) just to
* find out if the server supports server-side copy.
* There's no harm letting a client have a resume key
* for a directory. They'll never be able to DO anything
* with it because we check for a plain file later.
*/
static uint32_t
smb2_fsctl_get_resume_key(smb_request_t *sr, smb_fsctl_t *fsctl)
{
smb_ofile_t *of = sr->fid_ofile;
smb2fid_t smb2fid;
int rc;
/* Caller makes sure we have of = sr->fid_ofile */
/* Don't insist on a plain file (see above). */
smb2fid.persistent = of->f_persistid;
smb2fid.temporal = of->f_fid;
rc = smb_mbc_encodef(
fsctl->out_mbc, "qq16.",
smb2fid.persistent,
smb2fid.temporal);
if (rc != 0)
return (NT_STATUS_BUFFER_OVERFLOW);
return (NT_STATUS_SUCCESS);
}
/*
* FILE_DEVICE_FILE_SYSTEM (9)
*/
uint32_t
smb2_fsctl_fs(smb_request_t *sr, smb_fsctl_t *fsctl)
{
uint32_t (*func)(smb_request_t *, smb_fsctl_t *);
uint32_t status;
switch (fsctl->CtlCode) {
case FSCTL_GET_COMPRESSION: /* 15 */
func = smb2_fsctl_get_compression;
break;
case FSCTL_SET_COMPRESSION: /* 16 */
func = smb2_fsctl_set_compression;
break;
case FSCTL_SET_REPARSE_POINT: /* 41 */
case FSCTL_GET_REPARSE_POINT: /* 42 */
func = smb2_fsctl_invalid;
break;
case FSCTL_CREATE_OR_GET_OBJECT_ID: /* 48 */
func = smb2_fsctl_invalid;
break;
case FSCTL_SET_SPARSE: /* 49 */
func = smb2_fsctl_set_sparse;
break;
case FSCTL_SET_ZERO_DATA: /* 50 */
func = smb2_fsctl_set_zero_data;
break;
case FSCTL_QUERY_ALLOCATED_RANGES: /* 51 */
func = smb2_fsctl_query_alloc_ranges;
break;
case FSCTL_FILE_LEVEL_TRIM: /* 130 */
func = smb2_fsctl_invalid;
break;
case FSCTL_OFFLOAD_READ: /* 153 */
func = smb2_fsctl_odx_read;
break;
case FSCTL_OFFLOAD_WRITE: /* 154 */
func = smb2_fsctl_odx_write;
break;
case FSCTL_GET_INTEGRITY_INFORMATION: /* 159 */
case FSCTL_SET_INTEGRITY_INFORMATION: /* 160 */
func = smb2_fsctl_invalid;
break;
case FSCTL_QUERY_FILE_REGIONS: /* 161 */
func = smb2_fsctl_query_file_regions;
break;
case FSCTL_REFS_STREAM_SNAPSHOT_MANAGEMENT:
/* WPTS wants NOT_SUPPORTED here. */
func = smb2_fsctl_notsup;
break;
default:
func = smb2_fsctl_unknown;
break;
}
/*
* All "fs" sub-codes require a disk file.
*/
if (sr->fid_ofile == NULL ||
!SMB_FTYPE_IS_DISK(sr->fid_ofile->f_ftype))
return (NT_STATUS_INVALID_PARAMETER);
status = (*func)(sr, fsctl);
return (status);
}
/*
* FILE_DEVICE_NETWORK_FILE_SYSTEM (20)
*/
uint32_t
smb2_fsctl_netfs(smb_request_t *sr, smb_fsctl_t *fsctl)
{
uint32_t (*func)(smb_request_t *, smb_fsctl_t *);
uint32_t status;
boolean_t need_disk_file = B_TRUE;
switch (fsctl->CtlCode) {
case FSCTL_SRV_ENUMERATE_SNAPSHOTS: /* 0x19 */
func = smb_vss_enum_snapshots;
break;
case FSCTL_SRV_REQUEST_RESUME_KEY: /* 0x1e */
func = smb2_fsctl_get_resume_key;
break;
case FSCTL_SRV_COPYCHUNK: /* 0x3c(r) */
case FSCTL_SRV_COPYCHUNK_WRITE: /* 0x3c(w) */
func = smb2_fsctl_copychunk;
break;
case FSCTL_SRV_READ_HASH: /* 0x6e */
func = smb2_fsctl_invalid;
break;
case FSCTL_LMR_REQUEST_RESILIENCY: /* 0x75 */
func = smb2_fsctl_set_resilient;
break;
case FSCTL_QUERY_NETWORK_INTERFACE_INFO: /* 0x7f */
need_disk_file = B_FALSE;
func = smb2_fsctl_invalid;
break;
case FSCTL_VALIDATE_NEGOTIATE_INFO: /* 0x81 */
need_disk_file = B_FALSE;
func = smb2_nego_validate;
break;
default:
func = smb2_fsctl_unknown;
break;
}
/*
* Most "net fs" sub-codes require a disk file,
* except a couple that clear need_disk_file.
*/
if (need_disk_file && (sr->fid_ofile == NULL ||
!SMB_FTYPE_IS_DISK(sr->fid_ofile->f_ftype)))
return (NT_STATUS_INVALID_PARAMETER);
status = (*func)(sr, fsctl);
return (status);
}
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