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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
/*
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 struct tevent_req *smbd_smb2_setinfo_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct smbd_smb2_request *smb2req,
uint8_t in_info_type,
uint8_t in_file_info_class,
DATA_BLOB in_input_buffer,
uint32_t in_additional_information,
uint64_t in_file_id_volatile);
static NTSTATUS smbd_smb2_setinfo_recv(struct tevent_req *req);
static void smbd_smb2_request_setinfo_done(struct tevent_req *subreq);
NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req)
{
const uint8_t *inhdr;
const uint8_t *inbody;
int i = req->current_idx;
size_t expected_body_size = 0x21;
size_t body_size;
uint8_t in_info_type;
uint8_t in_file_info_class;
uint16_t in_input_buffer_offset;
uint32_t in_input_buffer_length;
DATA_BLOB in_input_buffer;
uint32_t in_additional_information;
uint64_t in_file_id_persistent;
uint64_t in_file_id_volatile;
struct tevent_req *subreq;
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_info_type = CVAL(inbody, 0x02);
in_file_info_class = CVAL(inbody, 0x03);
in_input_buffer_length = IVAL(inbody, 0x04);
in_input_buffer_offset = SVAL(inbody, 0x08);
/* 0x0A 2 bytes reserved */
in_additional_information = IVAL(inbody, 0x0C);
in_file_id_persistent = BVAL(inbody, 0x10);
in_file_id_volatile = BVAL(inbody, 0x18);
if (in_input_buffer_offset == 0 && in_input_buffer_length == 0) {
/* This is ok */
} else if (in_input_buffer_offset !=
(SMB2_HDR_BODY + (body_size & 0xFFFFFFFE))) {
return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
}
if (in_input_buffer_length > req->in.vector[i+2].iov_len) {
return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
}
in_input_buffer.data = (uint8_t *)req->in.vector[i+2].iov_base;
in_input_buffer.length = in_input_buffer_length;
if (req->compat_chain_fsp) {
/* skip check */
} else if (in_file_id_persistent != 0) {
return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
}
subreq = smbd_smb2_setinfo_send(req,
req->conn->smb2.event_ctx,
req,
in_info_type,
in_file_info_class,
in_input_buffer,
in_additional_information,
in_file_id_volatile);
if (subreq == NULL) {
return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
}
tevent_req_set_callback(subreq, smbd_smb2_request_setinfo_done, req);
if (tevent_req_is_in_progress(subreq)) {
return smbd_smb2_request_pending_queue(req);
}
return NT_STATUS_OK;
}
static void smbd_smb2_request_setinfo_done(struct tevent_req *subreq)
{
struct smbd_smb2_request *req = tevent_req_callback_data(subreq,
struct smbd_smb2_request);
int i = req->current_idx;
DATA_BLOB outbody;
NTSTATUS status;
NTSTATUS error; /* transport error */
status = smbd_smb2_setinfo_recv(subreq);
TALLOC_FREE(subreq);
if (!NT_STATUS_IS_OK(status)) {
error = smbd_smb2_request_error(req, status);
if (!NT_STATUS_IS_OK(error)) {
smbd_server_connection_terminate(req->conn,
nt_errstr(error));
return;
}
return;
}
outbody = data_blob_talloc(req->out.vector, NULL, 0x02);
if (outbody.data == NULL) {
error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
if (!NT_STATUS_IS_OK(error)) {
smbd_server_connection_terminate(req->conn,
nt_errstr(error));
return;
}
return;
}
SSVAL(outbody.data, 0x00, 0x02); /* struct size */
error = smbd_smb2_request_done(req, outbody, NULL);
if (!NT_STATUS_IS_OK(error)) {
smbd_server_connection_terminate(req->conn,
nt_errstr(error));
return;
}
}
struct smbd_smb2_setinfo_state {
struct smbd_smb2_request *smb2req;
};
static struct tevent_req *smbd_smb2_setinfo_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct smbd_smb2_request *smb2req,
uint8_t in_info_type,
uint8_t in_file_info_class,
DATA_BLOB in_input_buffer,
uint32_t in_additional_information,
uint64_t in_file_id_volatile)
{
struct tevent_req *req;
struct smbd_smb2_setinfo_state *state;
struct smb_request *smbreq;
connection_struct *conn = smb2req->tcon->compat_conn;
files_struct *fsp;
req = tevent_req_create(mem_ctx, &state,
struct smbd_smb2_setinfo_state);
if (req == NULL) {
return NULL;
}
state->smb2req = smb2req;
DEBUG(10,("smbd_smb2_setinfo_send: file_id[0x%016llX]\n",
(unsigned long long)in_file_id_volatile));
smbreq = smbd_smb2_fake_smb_request(smb2req);
if (tevent_req_nomem(smbreq, req)) {
return tevent_req_post(req, ev);
}
fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
if (fsp == NULL) {
tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
return tevent_req_post(req, ev);
}
if (conn != fsp->conn) {
tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
return tevent_req_post(req, ev);
}
if (smb2req->session->vuid != fsp->vuid) {
tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
return tevent_req_post(req, ev);
}
tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
return tevent_req_post(req, ev);
}
static NTSTATUS smbd_smb2_setinfo_recv(struct tevent_req *req)
{
NTSTATUS status;
if (tevent_req_is_nterror(req, &status)) {
tevent_req_received(req);
return status;
}
tevent_req_received(req);
return NT_STATUS_OK;
}
|
