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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 2017 Nexenta Systems, Inc. All rights reserved.
*/
/*
* Copyright 2020 RackTop Systems, Inc.
*/
/*
* Dispatch function for SMB2_QUERY_INFO
*/
#include <smbsrv/smb2_kproto.h>
#include <smbsrv/smb_fsops.h>
#include <smbsrv/ntifs.h>
smb_sdrc_t
smb2_query_info(smb_request_t *sr)
{
smb_queryinfo_t *qi;
uint16_t StructSize;
uint32_t oBufLength;
uint16_t iBufOffset;
uint32_t iBufLength;
smb2fid_t smb2fid;
uint16_t DataOff;
uint32_t status;
int rc = 0;
qi = smb_srm_zalloc(sr, sizeof (*qi));
/*
* SMB2 Query Info request
*/
rc = smb_mbc_decodef(
&sr->smb_data, "wbblw..lllqq",
&StructSize, /* w */
&qi->qi_InfoType, /* b */
&qi->qi_InfoClass, /* b */
&oBufLength, /* l */
&iBufOffset, /* w */
/* reserved .. */
&iBufLength, /* l */
&qi->qi_AddlInfo, /* l */
&qi->qi_Flags, /* l */
&smb2fid.persistent, /* q */
&smb2fid.temporal); /* q */
if (rc || StructSize != 41)
return (SDRC_ERROR);
/*
* If there's an input buffer, setup a shadow.
*/
if (iBufLength) {
rc = MBC_SHADOW_CHAIN(&qi->in_data, &sr->smb_data,
sr->smb2_cmd_hdr + iBufOffset, iBufLength);
if (rc) {
return (SDRC_ERROR);
}
}
if (oBufLength > smb2_max_trans)
oBufLength = smb2_max_trans;
sr->raw_data.max_bytes = oBufLength;
status = smb2sr_lookup_fid(sr, &smb2fid);
DTRACE_SMB2_START(op__QueryInfo, smb_request_t *, sr);
if (status)
goto errout;
switch (qi->qi_InfoType) {
case SMB2_0_INFO_FILE:
status = smb2_qinfo_file(sr, qi);
break;
case SMB2_0_INFO_FILESYSTEM:
status = smb2_qinfo_fs(sr, qi);
break;
case SMB2_0_INFO_SECURITY:
status = smb2_qinfo_sec(sr, qi);
break;
case SMB2_0_INFO_QUOTA:
status = smb2_qinfo_quota(sr, qi);
break;
default:
status = NT_STATUS_INVALID_PARAMETER;
break;
}
errout:
sr->smb2_status = status;
DTRACE_SMB2_DONE(op__QueryInfo, smb_request_t *, sr);
switch (status) {
case 0: /* success */
break;
case NT_STATUS_BUFFER_OVERFLOW:
/* Not really an error, per se. Advisory. */
break;
case NT_STATUS_BUFFER_TOO_SMALL: /* only in smb2_qinfo_sec.c */
/*
* [MS-SMB2] 3.3.5.20.3
* Handling SMB2_0_INFO_SECURITY
* If dialect 3.1.1 must return 4-byte value
* containing required buffer size.
* ByteCount==12, ErrorContextCount==1,
* ErrorData: ErrorDataLength==4,ErrorId==0
* ErrorContextData==<buffer size>
* Otherwise ByteCount==4
*
* When returning with data, 3.1.1 encapsulate.
*/
if (sr->session->dialect < SMB_VERS_3_11) {
smb2sr_put_error_data(sr, status, &sr->raw_data);
} else {
smb2sr_put_error_ctx0(sr, status, &sr->raw_data);
}
return (SDRC_SUCCESS);
case NT_STATUS_INFO_LENGTH_MISMATCH: /* there is no in smb2_qinfo_*.c */
/*
* [MS-SMB2] 3.3.5.20.1
* SMB 3.1.1 Handling SMB2_0_INFO_FILE
* [MS-SMB2] 3.3.5.20.2
* SMB 3.1.1 Handling SMB2_0_INFO_FILESYSTEM
*
* ByteCount==8, ErrorContextCount==1,
* ErrorData: ErrorDataLength==0,ErrorId==0
* Otherwise ByteCount==0
*/
if (sr->session->dialect < SMB_VERS_3_11) {
smb2sr_put_error_data(sr, status, NULL);
} else {
smb2sr_put_error_ctx0(sr, status, NULL);
}
return (SDRC_SUCCESS);
default:
smb2sr_put_error(sr, status);
return (SDRC_SUCCESS);
}
/*
* SMB2 Query Info reply
*/
DataOff = SMB2_HDR_SIZE + 8;
oBufLength = MBC_LENGTH(&sr->raw_data);
rc = smb_mbc_encodef(
&sr->reply, "wwlC",
9, /* StructSize */ /* w */
DataOff, /* w */
oBufLength, /* l */
&sr->raw_data); /* C */
if (rc)
sr->smb2_status = NT_STATUS_INTERNAL_ERROR;
return (SDRC_SUCCESS);
}
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