2 Unix SMB/CIFS implementation.
4 Copyright (C) Volker Lendecke 2011
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "system/network.h"
22 #include "lib/util/tevent_ntstatus.h"
23 #include "smb_common.h"
24 #include "smbXcli_base.h"
25 #include "smb2_create_blob.h"
27 struct smb2cli_create_state
{
30 uint64_t fid_persistent
;
31 uint64_t fid_volatile
;
32 struct smb_create_returns cr
;
33 struct smb2_create_blobs blobs
;
34 struct tevent_req
*subreq
;
37 static void smb2cli_create_done(struct tevent_req
*subreq
);
38 static bool smb2cli_create_cancel(struct tevent_req
*req
);
40 struct tevent_req
*smb2cli_create_send(
42 struct tevent_context
*ev
,
43 struct smbXcli_conn
*conn
,
44 uint32_t timeout_msec
,
45 struct smbXcli_session
*session
,
46 struct smbXcli_tcon
*tcon
,
48 uint8_t oplock_level
, /* SMB2_OPLOCK_LEVEL_* */
49 uint32_t impersonation_level
, /* SMB2_IMPERSONATION_* */
50 uint32_t desired_access
,
51 uint32_t file_attributes
,
52 uint32_t share_access
,
53 uint32_t create_disposition
,
54 uint32_t create_options
,
55 struct smb2_create_blobs
*blobs
)
57 struct tevent_req
*req
, *subreq
;
58 struct smb2cli_create_state
*state
;
61 size_t name_utf16_len
;
68 uint32_t additional_flags
= 0;
69 uint32_t clear_flags
= 0;
71 req
= tevent_req_create(mem_ctx
, &state
,
72 struct smb2cli_create_state
);
77 if (!convert_string_talloc(state
, CH_UNIX
, CH_UTF16
,
78 filename
, strlen(filename
),
79 &name_utf16
, &name_utf16_len
)) {
81 return tevent_req_post(req
, ev
);
84 if (strlen(filename
) == 0) {
85 TALLOC_FREE(name_utf16
);
92 SCVAL(fixed
, 3, oplock_level
);
93 SIVAL(fixed
, 4, impersonation_level
);
94 SIVAL(fixed
, 24, desired_access
);
95 SIVAL(fixed
, 28, file_attributes
);
96 SIVAL(fixed
, 32, share_access
);
97 SIVAL(fixed
, 36, create_disposition
);
98 SIVAL(fixed
, 40, create_options
);
100 SSVAL(fixed
, 44, SMB2_HDR_BODY
+ 56);
101 SSVAL(fixed
, 46, name_utf16_len
);
103 blob
= data_blob_null
;
106 status
= smb2_create_blob_push(state
, &blob
, *blobs
);
107 if (tevent_req_nterror(req
, status
)) {
108 return tevent_req_post(req
, ev
);
112 blobs_offset
= name_utf16_len
;
113 blobs_offset
= ((blobs_offset
+ 3) & ~3);
115 if (blob
.length
> 0) {
116 blobs_offset
= ((blobs_offset
+ 7) & ~7);
117 SIVAL(fixed
, 48, blobs_offset
+ SMB2_HDR_BODY
+ 56);
118 SIVAL(fixed
, 52, blob
.length
);
121 dyn_len
= MAX(1, blobs_offset
+ blob
.length
);
122 dyn
= talloc_zero_array(state
, uint8_t, dyn_len
);
123 if (tevent_req_nomem(dyn
, req
)) {
124 return tevent_req_post(req
, ev
);
128 memcpy(dyn
, name_utf16
, name_utf16_len
);
129 TALLOC_FREE(name_utf16
);
132 if (blob
.data
!= NULL
) {
133 memcpy(dyn
+ blobs_offset
,
134 blob
.data
, blob
.length
);
135 data_blob_free(&blob
);
138 if (smbXcli_conn_dfs_supported(conn
) &&
139 smbXcli_tcon_is_dfs_share(tcon
))
141 additional_flags
|= SMB2_HDR_FLAG_DFS
;
145 * We use max_dyn_len = 0
146 * as we don't explicitly ask for any output length.
148 * But it's still possible for the server to return
149 * large create blobs.
153 subreq
= smb2cli_req_send(state
, ev
, conn
, SMB2_OP_CREATE
,
154 additional_flags
, clear_flags
,
158 state
->fixed
, sizeof(state
->fixed
),
161 if (tevent_req_nomem(subreq
, req
)) {
162 return tevent_req_post(req
, ev
);
164 tevent_req_set_callback(subreq
, smb2cli_create_done
, req
);
166 state
->subreq
= subreq
;
167 tevent_req_set_cancel_fn(req
, smb2cli_create_cancel
);
172 static bool smb2cli_create_cancel(struct tevent_req
*req
)
174 struct smb2cli_create_state
*state
= tevent_req_data(req
,
175 struct smb2cli_create_state
);
176 return tevent_req_cancel(state
->subreq
);
179 static void smb2cli_create_done(struct tevent_req
*subreq
)
181 struct tevent_req
*req
=
182 tevent_req_callback_data(subreq
,
184 struct smb2cli_create_state
*state
=
186 struct smb2cli_create_state
);
190 uint32_t offset
, length
;
191 static const struct smb2cli_req_expected_response expected
[] = {
193 .status
= NT_STATUS_OK
,
198 status
= smb2cli_req_recv(subreq
, state
, &iov
,
199 expected
, ARRAY_SIZE(expected
));
201 if (tevent_req_nterror(req
, status
)) {
205 body
= (uint8_t *)iov
[1].iov_base
;
207 state
->cr
.oplock_level
= CVAL(body
, 2);
208 state
->cr
.create_action
= IVAL(body
, 4);
209 state
->cr
.creation_time
= BVAL(body
, 8);
210 state
->cr
.last_access_time
= BVAL(body
, 16);
211 state
->cr
.last_write_time
= BVAL(body
, 24);
212 state
->cr
.change_time
= BVAL(body
, 32);
213 state
->cr
.allocation_size
= BVAL(body
, 40);
214 state
->cr
.end_of_file
= BVAL(body
, 48);
215 state
->cr
.file_attributes
= IVAL(body
, 56);
216 state
->fid_persistent
= BVAL(body
, 64);
217 state
->fid_volatile
= BVAL(body
, 72);
219 offset
= IVAL(body
, 80);
220 length
= IVAL(body
, 84);
222 if ((offset
!= 0) && (length
!= 0)) {
223 if ((offset
!= SMB2_HDR_BODY
+ 88) ||
224 (length
> iov
[2].iov_len
)) {
226 req
, NT_STATUS_INVALID_NETWORK_RESPONSE
);
229 status
= smb2_create_blob_parse(
230 state
, data_blob_const(iov
[2].iov_base
, length
),
232 if (tevent_req_nterror(req
, status
)) {
236 tevent_req_done(req
);
239 NTSTATUS
smb2cli_create_recv(struct tevent_req
*req
,
240 uint64_t *fid_persistent
,
241 uint64_t *fid_volatile
,
242 struct smb_create_returns
*cr
,
244 struct smb2_create_blobs
*blobs
)
246 struct smb2cli_create_state
*state
=
248 struct smb2cli_create_state
);
251 if (tevent_req_is_nterror(req
, &status
)) {
252 tevent_req_received(req
);
255 *fid_persistent
= state
->fid_persistent
;
256 *fid_volatile
= state
->fid_volatile
;
261 blobs
->num_blobs
= state
->blobs
.num_blobs
;
262 blobs
->blobs
= talloc_move(mem_ctx
, &state
->blobs
.blobs
);
264 tevent_req_received(req
);
268 NTSTATUS
smb2cli_create(struct smbXcli_conn
*conn
,
269 uint32_t timeout_msec
,
270 struct smbXcli_session
*session
,
271 struct smbXcli_tcon
*tcon
,
272 const char *filename
,
273 uint8_t oplock_level
, /* SMB2_OPLOCK_LEVEL_* */
274 uint32_t impersonation_level
, /* SMB2_IMPERSONATION_* */
275 uint32_t desired_access
,
276 uint32_t file_attributes
,
277 uint32_t share_access
,
278 uint32_t create_disposition
,
279 uint32_t create_options
,
280 struct smb2_create_blobs
*blobs
,
281 uint64_t *fid_persistent
,
282 uint64_t *fid_volatile
,
283 struct smb_create_returns
*cr
,
285 struct smb2_create_blobs
*ret_blobs
)
287 TALLOC_CTX
*frame
= talloc_stackframe();
288 struct tevent_context
*ev
;
289 struct tevent_req
*req
;
290 NTSTATUS status
= NT_STATUS_NO_MEMORY
;
292 if (smbXcli_conn_has_async_calls(conn
)) {
294 * Can't use sync call while an async call is in flight
296 status
= NT_STATUS_INVALID_PARAMETER
;
299 ev
= samba_tevent_context_init(frame
);
303 req
= smb2cli_create_send(frame
, ev
, conn
, timeout_msec
,
305 filename
, oplock_level
,
306 impersonation_level
, desired_access
,
307 file_attributes
, share_access
,
308 create_disposition
, create_options
,
313 if (!tevent_req_poll_ntstatus(req
, ev
, &status
)) {
316 status
= smb2cli_create_recv(req
, fid_persistent
, fid_volatile
, cr
,