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 smb2_create_returns cr;
33 struct smb2_create_blobs blobs;
36 static void smb2cli_create_done(struct tevent_req *subreq);
38 struct tevent_req *smb2cli_create_send(
40 struct tevent_context *ev,
41 struct smbXcli_conn *conn,
42 uint32_t timeout_msec,
43 struct smbXcli_session *session,
44 struct smbXcli_tcon *tcon,
46 uint8_t oplock_level, /* SMB2_OPLOCK_LEVEL_* */
47 uint32_t impersonation_level, /* SMB2_IMPERSONATION_* */
48 uint32_t desired_access,
49 uint32_t file_attributes,
50 uint32_t share_access,
51 uint32_t create_disposition,
52 uint32_t create_options,
53 struct smb2_create_blobs *blobs)
55 struct tevent_req *req, *subreq;
56 struct smb2cli_create_state *state;
59 size_t name_utf16_len;
67 req = tevent_req_create(mem_ctx, &state,
68 struct smb2cli_create_state);
73 if (!convert_string_talloc(state, CH_UNIX, CH_UTF16,
74 filename, strlen(filename),
75 &name_utf16, &name_utf16_len)) {
77 return tevent_req_post(req, ev);
80 if (strlen(filename) == 0) {
81 TALLOC_FREE(name_utf16);
88 SCVAL(fixed, 3, oplock_level);
89 SIVAL(fixed, 4, impersonation_level);
90 SIVAL(fixed, 24, desired_access);
91 SIVAL(fixed, 28, file_attributes);
92 SIVAL(fixed, 32, share_access);
93 SIVAL(fixed, 36, create_disposition);
94 SIVAL(fixed, 40, create_options);
96 SSVAL(fixed, 44, SMB2_HDR_BODY + 56);
97 SSVAL(fixed, 46, name_utf16_len);
99 blob = data_blob_null;
102 status = smb2_create_blob_push(state, &blob, *blobs);
103 if (tevent_req_nterror(req, status)) {
104 return tevent_req_post(req, ev);
108 blobs_offset = name_utf16_len;
109 blobs_offset = ((blobs_offset + 3) & ~3);
111 if (blob.length > 0) {
112 SIVAL(fixed, 48, blobs_offset + SMB2_HDR_BODY + 56);
113 SIVAL(fixed, 52, blob.length);
116 dyn_len = MAX(1, blobs_offset + blob.length);
117 dyn = talloc_zero_array(state, uint8_t, dyn_len);
118 if (tevent_req_nomem(dyn, req)) {
119 return tevent_req_post(req, ev);
123 memcpy(dyn, name_utf16, name_utf16_len);
124 TALLOC_FREE(name_utf16);
127 if (blob.data != NULL) {
128 memcpy(dyn + blobs_offset,
129 blob.data, blob.length);
130 data_blob_free(&blob);
134 * We use max_dyn_len = 0
135 * as we don't explicitly ask for any output length.
137 * But it's still possible for the server to return
138 * large create blobs.
142 subreq = smb2cli_req_send(state, ev, conn, SMB2_OP_CREATE,
147 state->fixed, sizeof(state->fixed),
150 if (tevent_req_nomem(subreq, req)) {
151 return tevent_req_post(req, ev);
153 tevent_req_set_callback(subreq, smb2cli_create_done, req);
157 static void smb2cli_create_done(struct tevent_req *subreq)
159 struct tevent_req *req =
160 tevent_req_callback_data(subreq,
162 struct smb2cli_create_state *state =
164 struct smb2cli_create_state);
168 uint32_t offset, length;
169 static const struct smb2cli_req_expected_response expected[] = {
171 .status = NT_STATUS_OK,
176 status = smb2cli_req_recv(subreq, state, &iov,
177 expected, ARRAY_SIZE(expected));
179 if (tevent_req_nterror(req, status)) {
183 body = (uint8_t *)iov[1].iov_base;
185 state->cr.oplock_level = CVAL(body, 2);
186 state->cr.create_action = IVAL(body, 4);
187 state->cr.creation_time = BVAL(body, 8);
188 state->cr.last_access_time = BVAL(body, 16);
189 state->cr.last_write_time = BVAL(body, 24);
190 state->cr.change_time = BVAL(body, 32);
191 state->cr.allocation_size = BVAL(body, 40);
192 state->cr.end_of_file = BVAL(body, 48);
193 state->cr.file_attributes = IVAL(body, 56);
194 state->fid_persistent = BVAL(body, 64);
195 state->fid_volatile = BVAL(body, 72);
197 offset = IVAL(body, 80);
198 length = IVAL(body, 84);
200 if ((offset != 0) && (length != 0)) {
201 if ((offset != SMB2_HDR_BODY + 88) ||
202 (length > iov[2].iov_len)) {
204 req, NT_STATUS_INVALID_NETWORK_RESPONSE);
207 status = smb2_create_blob_parse(
208 state, data_blob_const(iov[2].iov_base, length),
210 if (tevent_req_nterror(req, status)) {
214 tevent_req_done(req);
217 NTSTATUS smb2cli_create_recv(struct tevent_req *req,
218 uint64_t *fid_persistent,
219 uint64_t *fid_volatile,
220 struct smb2_create_returns *cr)
222 struct smb2cli_create_state *state =
224 struct smb2cli_create_state);
227 if (tevent_req_is_nterror(req, &status)) {
230 *fid_persistent = state->fid_persistent;
231 *fid_volatile = state->fid_volatile;
238 NTSTATUS smb2cli_create(struct smbXcli_conn *conn,
239 uint32_t timeout_msec,
240 struct smbXcli_session *session,
241 struct smbXcli_tcon *tcon,
242 const char *filename,
243 uint8_t oplock_level, /* SMB2_OPLOCK_LEVEL_* */
244 uint32_t impersonation_level, /* SMB2_IMPERSONATION_* */
245 uint32_t desired_access,
246 uint32_t file_attributes,
247 uint32_t share_access,
248 uint32_t create_disposition,
249 uint32_t create_options,
250 struct smb2_create_blobs *blobs,
251 uint64_t *fid_persistent,
252 uint64_t *fid_volatile,
253 struct smb2_create_returns *cr)
255 TALLOC_CTX *frame = talloc_stackframe();
256 struct tevent_context *ev;
257 struct tevent_req *req;
258 NTSTATUS status = NT_STATUS_NO_MEMORY;
260 if (smbXcli_conn_has_async_calls(conn)) {
262 * Can't use sync call while an async call is in flight
264 status = NT_STATUS_INVALID_PARAMETER;
267 ev = samba_tevent_context_init(frame);
271 req = smb2cli_create_send(frame, ev, conn, timeout_msec,
273 filename, oplock_level,
274 impersonation_level, desired_access,
275 file_attributes, share_access,
276 create_disposition, create_options,
281 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
284 status = smb2cli_create_recv(req, fid_persistent, fid_volatile, cr);