1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*
Unix SMB/CIFS implementation.
Core SMB2 server
Copyright (C) Stefan Metzmacher 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "smbd/globals.h"
#include "../source4/libcli/smb2/smb2_constants.h"
static NTSTATUS smbd_smb2_close(struct smbd_smb2_request *req,
uint16_t in_flags,
uint64_t in_file_id_volatile);
NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req)
{
const uint8_t *inhdr;
const uint8_t *inbody;
int i = req->current_idx;
uint8_t *outhdr;
DATA_BLOB outbody;
size_t expected_body_size = 0x18;
size_t body_size;
uint16_t in_flags;
uint64_t in_file_id_persistent;
uint64_t in_file_id_volatile;
NTSTATUS status;
inhdr = (const uint8_t *)req->in.vector[i+0].iov_base;
if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) {
return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
}
inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
body_size = SVAL(inbody, 0x00);
if (body_size != expected_body_size) {
return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
}
in_flags = SVAL(inbody, 0x02);
in_file_id_persistent = BVAL(inbody, 0x08);
in_file_id_volatile = BVAL(inbody, 0x10);
if (req->compat_chain_fsp) {
/* skip check */
} else if (in_file_id_persistent != 0) {
return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
}
status = smbd_smb2_close(req,
in_flags,
in_file_id_volatile);
if (!NT_STATUS_IS_OK(status)) {
return smbd_smb2_request_error(req, status);
}
outhdr = (uint8_t *)req->out.vector[i].iov_base;
outbody = data_blob_talloc(req->out.vector, NULL, 0x3C);
if (outbody.data == NULL) {
return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
}
SSVAL(outbody.data, 0x00, 0x3C); /* struct size */
SSVAL(outbody.data, 0x02, 0); /* flags */
SIVAL(outbody.data, 0x04, 0); /* reserved */
SBVAL(outbody.data, 0x08, 0); /* creation time */
SBVAL(outbody.data, 0x10, 0); /* last access time */
SBVAL(outbody.data, 0x18, 0); /* last write time */
SBVAL(outbody.data, 0x20, 0); /* change time */
SBVAL(outbody.data, 0x28, 0); /* allocation size */
SBVAL(outbody.data, 0x30, 0); /* end of size */
SIVAL(outbody.data, 0x38, 0); /* file attributes */
return smbd_smb2_request_done(req, outbody, NULL);
}
static NTSTATUS smbd_smb2_close(struct smbd_smb2_request *req,
uint16_t in_flags,
uint64_t in_file_id_volatile)
{
NTSTATUS status;
struct smb_request *smbreq;
connection_struct *conn = req->tcon->compat_conn;
files_struct *fsp;
DEBUG(10,("smbd_smb2_close: file_id[0x%016llX]\n",
(unsigned long long)in_file_id_volatile));
smbreq = smbd_smb2_fake_smb_request(req);
if (smbreq == NULL) {
return NT_STATUS_NO_MEMORY;
}
fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
if (fsp == NULL) {
return NT_STATUS_FILE_CLOSED;
}
if (conn != fsp->conn) {
return NT_STATUS_FILE_CLOSED;
}
if (req->session->vuid != fsp->vuid) {
return NT_STATUS_FILE_CLOSED;
}
status = close_file(smbreq, fsp, NORMAL_CLOSE);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(5,("smbd_smb2_close: close_file[%s]: %s\n",
fsp_str_dbg(fsp), nt_errstr(status)));
return status;
}
return NT_STATUS_OK;
}
|
