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s3: Slightly simplify is_stat_open
[Samba/gebeck_regimport.git] / source4 / libcli / smb2 / create.c
blobdb9abbee6981db0121878d410ff97bfc3f8312d0
1 /*
2 Unix SMB/CIFS implementation.
3
4 SMB2 client tree handling
5
6 Copyright (C) Andrew Tridgell 2005
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #include "includes.h"
23 #include "libcli/raw/libcliraw.h"
24 #include "libcli/raw/raw_proto.h"
25 #include "libcli/smb2/smb2.h"
26 #include "libcli/smb2/smb2_calls.h"
27 #include "librpc/gen_ndr/ndr_security.h"
28
29 /*
30 send a create request
31 */
32 struct smb2_request *smb2_create_send(struct smb2_tree *tree, struct smb2_create *io)
33 {
34 struct smb2_request *req;
35 NTSTATUS status;
36 DATA_BLOB blob;
37 struct smb2_create_blobs blobs;
38 int i;
39
40 ZERO_STRUCT(blobs);
41
42 req = smb2_request_init_tree(tree, SMB2_OP_CREATE, 0x38, true, 0);
43 if (req == NULL) return NULL;
44
45 SCVAL(req->out.body, 0x02, io->in.security_flags);
46 SCVAL(req->out.body, 0x03, io->in.oplock_level);
47 SIVAL(req->out.body, 0x04, io->in.impersonation_level);
48 SBVAL(req->out.body, 0x08, io->in.create_flags);
49 SBVAL(req->out.body, 0x10, io->in.reserved);
50 SIVAL(req->out.body, 0x18, io->in.desired_access);
51 SIVAL(req->out.body, 0x1C, io->in.file_attributes);
52 SIVAL(req->out.body, 0x20, io->in.share_access);
53 SIVAL(req->out.body, 0x24, io->in.create_disposition);
54 SIVAL(req->out.body, 0x28, io->in.create_options);
55
56 status = smb2_push_o16s16_string(&req->out, 0x2C, io->in.fname);
57 if (!NT_STATUS_IS_OK(status)) {
58 talloc_free(req);
59 return NULL;
60 }
61
62 /* now add all the optional blobs */
63 if (io->in.eas.num_eas != 0) {
64 DATA_BLOB b = data_blob_talloc(req, NULL,
65 ea_list_size_chained(io->in.eas.num_eas, io->in.eas.eas, 4));
66 ea_put_list_chained(b.data, io->in.eas.num_eas, io->in.eas.eas, 4);
67 status = smb2_create_blob_add(req, &blobs,
68 SMB2_CREATE_TAG_EXTA, b);
69 if (!NT_STATUS_IS_OK(status)) {
70 talloc_free(req);
71 return NULL;
72 }
73 data_blob_free(&b);
74 }
75
76 /* an empty MxAc tag seems to be used to ask the server to
77 return the maximum access mask allowed on the file */
78 if (io->in.query_maximal_access) {
79 /* TODO: MS-SMB2 2.2.13.2.5 says this can contain a timestamp? What to do
80 with that if it doesn't match? */
81 status = smb2_create_blob_add(req, &blobs,
82 SMB2_CREATE_TAG_MXAC, data_blob(NULL, 0));
83 if (!NT_STATUS_IS_OK(status)) {
84 talloc_free(req);
85 return NULL;
86 }
87 }
88
89 if (io->in.alloc_size != 0) {
90 uint8_t data[8];
91 SBVAL(data, 0, io->in.alloc_size);
92 status = smb2_create_blob_add(req, &blobs,
93 SMB2_CREATE_TAG_ALSI, data_blob_const(data, 8));
94 if (!NT_STATUS_IS_OK(status)) {
95 talloc_free(req);
96 return NULL;
97 }
98 }
99
100 if (io->in.durable_open) {
101 status = smb2_create_blob_add(req, &blobs,
102 SMB2_CREATE_TAG_DHNQ, data_blob_talloc_zero(req, 16));
103 if (!NT_STATUS_IS_OK(status)) {
104 talloc_free(req);
105 return NULL;
106 }
107 }
108
109 if (io->in.durable_open_v2) {
110 uint8_t data[32];
111 uint32_t flags = 0;
112 DATA_BLOB guid_blob;
113
114 SIVAL(data, 0, io->in.timeout);
115 if (io->in.persistent_open) {
116 flags = SMB2_DHANDLE_FLAG_PERSISTENT;
117 }
118 SIVAL(data, 4, flags);
119 SBVAL(data, 8, 0x0); /* reserved */
120 status = GUID_to_ndr_blob(&io->in.create_guid, req, /* TALLOC_CTX */
121 &guid_blob);
122 if (!NT_STATUS_IS_OK(status)) {
123 talloc_free(req);
124 return NULL;
125 }
126 memcpy(data+16, guid_blob.data, 16);
127
128 status = smb2_create_blob_add(req, &blobs,
129 SMB2_CREATE_TAG_DH2Q,
130 data_blob_const(data, 32));
131 if (!NT_STATUS_IS_OK(status)) {
132 talloc_free(req);
133 return NULL;
134 }
135 }
136
137 if (io->in.durable_handle) {
138 uint8_t data[16];
139 smb2_push_handle(data, io->in.durable_handle);
140 status = smb2_create_blob_add(req, &blobs,
141 SMB2_CREATE_TAG_DHNC, data_blob_const(data, 16));
142 if (!NT_STATUS_IS_OK(status)) {
143 talloc_free(req);
144 return NULL;
145 }
146 }
147
148 if (io->in.durable_handle_v2) {
149 uint8_t data[36];
150 DATA_BLOB guid_blob;
151 uint32_t flags = 0;
152
153 smb2_push_handle(data, io->in.durable_handle_v2);
154 status = GUID_to_ndr_blob(&io->in.create_guid, req, /* TALLOC_CTX */
155 &guid_blob);
156 if (!NT_STATUS_IS_OK(status)) {
157 talloc_free(req);
158 return NULL;
159 }
160 memcpy(data+16, guid_blob.data, 16);
161 if (io->in.persistent_open) {
162 flags = SMB2_DHANDLE_FLAG_PERSISTENT;
163 }
164 SIVAL(data, 32, flags);
165
166 status = smb2_create_blob_add(req, &blobs,
167 SMB2_CREATE_TAG_DH2C,
168 data_blob_const(data, 36));
169 if (!NT_STATUS_IS_OK(status)) {
170 talloc_free(req);
171 return NULL;
172 }
173 }
174
175 if (io->in.timewarp) {
176 uint8_t data[8];
177 SBVAL(data, 0, io->in.timewarp);
178 status = smb2_create_blob_add(req, &blobs,
179 SMB2_CREATE_TAG_TWRP, data_blob_const(data, 8));
180 if (!NT_STATUS_IS_OK(status)) {
181 talloc_free(req);
182 return NULL;
183 }
184 }
185
186 if (io->in.sec_desc) {
187 enum ndr_err_code ndr_err;
188 DATA_BLOB sd_blob;
189 ndr_err = ndr_push_struct_blob(&sd_blob, req, io->in.sec_desc,
190 (ndr_push_flags_fn_t)ndr_push_security_descriptor);
191 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
192 talloc_free(req);
193 return NULL;
194 }
195 status = smb2_create_blob_add(req, &blobs,
196 SMB2_CREATE_TAG_SECD, sd_blob);
197 if (!NT_STATUS_IS_OK(status)) {
198 talloc_free(req);
199 return NULL;
200 }
201 }
202
203 if (io->in.query_on_disk_id) {
204 status = smb2_create_blob_add(req, &blobs,
205 SMB2_CREATE_TAG_QFID, data_blob(NULL, 0));
206 if (!NT_STATUS_IS_OK(status)) {
207 talloc_free(req);
208 return NULL;
209 }
210 }
211
212 if (io->in.lease_request) {
213 uint8_t data[32];
214
215 memcpy(&data[0], &io->in.lease_request->lease_key, 16);
216 SIVAL(data, 16, io->in.lease_request->lease_state);
217 SIVAL(data, 20, io->in.lease_request->lease_flags);
218 SBVAL(data, 24, io->in.lease_request->lease_duration);
219
220 status = smb2_create_blob_add(req, &blobs,
221 SMB2_CREATE_TAG_RQLS,
222 data_blob_const(data, 32));
223 if (!NT_STATUS_IS_OK(status)) {
224 talloc_free(req);
225 return NULL;
226 }
227 }
228
229 if (io->in.app_instance_id) {
230 uint8_t data[20];
231 DATA_BLOB guid_blob;
232
233 SSVAL(data, 0, 20); /* structure size */
234 SSVAL(data, 2, 0); /* reserved */
235
236 status = GUID_to_ndr_blob(io->in.app_instance_id,
237 req, /* TALLOC_CTX */
238 &guid_blob);
239 if (!NT_STATUS_IS_OK(status)) {
240 talloc_free(req);
241 return NULL;
242 }
243 memcpy(data+4, guid_blob.data, 16);
244
245 status = smb2_create_blob_add(req, &blobs,
246 SMB2_CREATE_TAG_APP_INSTANCE_ID,
247 data_blob_const(data, 20));
248 if (!NT_STATUS_IS_OK(status)) {
249 talloc_free(req);
250 return NULL;
251 }
252 }
253
254 /* and any custom blobs */
255 for (i=0;i<io->in.blobs.num_blobs;i++) {
256 status = smb2_create_blob_add(req, &blobs,
257 io->in.blobs.blobs[i].tag,
258 io->in.blobs.blobs[i].data);
259 if (!NT_STATUS_IS_OK(status)) {
260 talloc_free(req);
261 return NULL;
262 }
263 }
264
265
266 status = smb2_create_blob_push(req, &blob, blobs);
267 if (!NT_STATUS_IS_OK(status)) {
268 talloc_free(req);
269 return NULL;
270 }
271
272 status = smb2_push_o32s32_blob(&req->out, 0x30, blob);
273 if (!NT_STATUS_IS_OK(status)) {
274 talloc_free(req);
275 return NULL;
276 }
277
278 data_blob_free(&blob);
279
280 smb2_transport_send(req);
281
282 return req;
283 }
284
285
286 /*
287 recv a create reply
288 */
289 NTSTATUS smb2_create_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx, struct smb2_create *io)
290 {
291 NTSTATUS status;
292 DATA_BLOB blob;
293 int i;
294
295 if (!smb2_request_receive(req) ||
296 !smb2_request_is_ok(req)) {
297 return smb2_request_destroy(req);
298 }
299
300 SMB2_CHECK_PACKET_RECV(req, 0x58, true);
301 ZERO_STRUCT(io->out);
302 io->out.oplock_level = CVAL(req->in.body, 0x02);
303 io->out.reserved = CVAL(req->in.body, 0x03);
304 io->out.create_action = IVAL(req->in.body, 0x04);
305 io->out.create_time = smbcli_pull_nttime(req->in.body, 0x08);
306 io->out.access_time = smbcli_pull_nttime(req->in.body, 0x10);
307 io->out.write_time = smbcli_pull_nttime(req->in.body, 0x18);
308 io->out.change_time = smbcli_pull_nttime(req->in.body, 0x20);
309 io->out.alloc_size = BVAL(req->in.body, 0x28);
310 io->out.size = BVAL(req->in.body, 0x30);
311 io->out.file_attr = IVAL(req->in.body, 0x38);
312 io->out.reserved2 = IVAL(req->in.body, 0x3C);
313 smb2_pull_handle(req->in.body+0x40, &io->out.file.handle);
314 status = smb2_pull_o32s32_blob(&req->in, mem_ctx, req->in.body+0x50, &blob);
315 if (!NT_STATUS_IS_OK(status)) {
316 smb2_request_destroy(req);
317 return status;
318 }
319
320 status = smb2_create_blob_parse(mem_ctx, blob, &io->out.blobs);
321 if (!NT_STATUS_IS_OK(status)) {
322 smb2_request_destroy(req);
323 return status;
324 }
325
326 /* pull out the parsed blobs */
327 for (i=0;i<io->out.blobs.num_blobs;i++) {
328 if (strcmp(io->out.blobs.blobs[i].tag, SMB2_CREATE_TAG_MXAC) == 0) {
329 /* TODO: this also contains a status field in
330 first 4 bytes */
331 if (io->out.blobs.blobs[i].data.length != 8) {
332 smb2_request_destroy(req);
333 return NT_STATUS_INVALID_NETWORK_RESPONSE;
334 }
335 io->out.maximal_access = IVAL(io->out.blobs.blobs[i].data.data, 4);
336 }
337 if (strcmp(io->out.blobs.blobs[i].tag, SMB2_CREATE_TAG_QFID) == 0) {
338 if (io->out.blobs.blobs[i].data.length != 32) {
339 smb2_request_destroy(req);
340 return NT_STATUS_INVALID_NETWORK_RESPONSE;
341 }
342 memcpy(io->out.on_disk_id, io->out.blobs.blobs[i].data.data, 32);
343 }
344 if (strcmp(io->out.blobs.blobs[i].tag, SMB2_CREATE_TAG_RQLS) == 0) {
345 uint8_t *data;
346 if (io->out.blobs.blobs[i].data.length != 32) {
347 smb2_request_destroy(req);
348 return NT_STATUS_INVALID_NETWORK_RESPONSE;
349 }
350
351 data = io->out.blobs.blobs[i].data.data;
352 memcpy(&io->out.lease_response.lease_key, data, 16);
353 io->out.lease_response.lease_state = IVAL(data, 16);
354 io->out.lease_response.lease_flags = IVAL(data, 20);
355 io->out.lease_response.lease_duration = BVAL(data, 24);
356 }
357 if (strcmp(io->out.blobs.blobs[i].tag, SMB2_CREATE_TAG_DHNQ) == 0) {
358 if (io->out.blobs.blobs[i].data.length != 8) {
359 smb2_request_destroy(req);
360 return NT_STATUS_INVALID_NETWORK_RESPONSE;
361 }
362 io->out.durable_open = true;
363 }
364 if (strcmp(io->out.blobs.blobs[i].tag, SMB2_CREATE_TAG_DH2Q) == 0) {
365 uint32_t flags;
366 uint8_t *data;
367
368 if (io->out.blobs.blobs[i].data.length != 8) {
369 smb2_request_destroy(req);
370 return NT_STATUS_INVALID_NETWORK_RESPONSE;
371 }
372
373 io->out.durable_open = false;
374 io->out.durable_open_v2 = true;
375
376 data = io->out.blobs.blobs[i].data.data;
377 io->out.timeout = IVAL(data, 0);
378 flags = IVAL(data, 4);
379 if ((flags & SMB2_DHANDLE_FLAG_PERSISTENT) != 0) {
380 io->out.persistent_open = true;
381 }
382 }
383 }
384
385 data_blob_free(&blob);
386
387 return smb2_request_destroy(req);
388 }
389
390 /*
391 sync create request
392 */
393 NTSTATUS smb2_create(struct smb2_tree *tree, TALLOC_CTX *mem_ctx, struct smb2_create *io)
394 {
395 struct smb2_request *req = smb2_create_send(tree, io);
396 return smb2_create_recv(req, mem_ctx, io);
397 }
reg import