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
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
|
/*
Unix SMB2 implementation.
Copyright (C) Stefan Metzmacher 2005
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 "libcli/smb2/smb2.h"
#include "libcli/smb2/smb2_calls.h"
#include "smb_server/smb_server.h"
#include "smb_server/service_smb_proto.h"
#include "smb_server/smb2/smb2_server.h"
#include "ntvfs/ntvfs.h"
#include "param/param.h"
static void smb2srv_create_send(struct ntvfs_request *ntvfs)
{
struct smb2srv_request *req;
union smb_open *io;
SMB2SRV_CHECK_ASYNC_STATUS(io, union smb_open);
SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x58, true, io->smb2.out.blob.length));
SSVAL(req->out.body, 0x02, io->smb2.out.oplock_flags);
SIVAL(req->out.body, 0x04, io->smb2.out.create_action);
SBVAL(req->out.body, 0x08, io->smb2.out.create_time);
SBVAL(req->out.body, 0x10, io->smb2.out.access_time);
SBVAL(req->out.body, 0x18, io->smb2.out.write_time);
SBVAL(req->out.body, 0x20, io->smb2.out.change_time);
SBVAL(req->out.body, 0x28, io->smb2.out.alloc_size);
SBVAL(req->out.body, 0x30, io->smb2.out.size);
SIVAL(req->out.body, 0x38, io->smb2.out.file_attr);
SIVAL(req->out.body, 0x3C, io->smb2.out._pad);
smb2srv_push_handle(req->out.body, 0x40, io->smb2.out.file.ntvfs);
SMB2SRV_CHECK(smb2_push_o32s32_blob(&req->out, 0x50, io->smb2.out.blob));
/* also setup the chained file handle */
req->chained_file_handle = req->_chained_file_handle;
smb2srv_push_handle(req->chained_file_handle, 0, io->smb2.out.file.ntvfs);
smb2srv_send_reply(req);
}
void smb2srv_create_recv(struct smb2srv_request *req)
{
union smb_open *io;
DATA_BLOB blob;
SMB2SRV_CHECK_BODY_SIZE(req, 0x38, true);
SMB2SRV_TALLOC_IO_PTR(io, union smb_open);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_create_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_OPEN_SMB2;
io->smb2.in.oplock_flags = SVAL(req->in.body, 0x02);
io->smb2.in.impersonation = IVAL(req->in.body, 0x04);
io->smb2.in.unknown3[0] = IVAL(req->in.body, 0x08);
io->smb2.in.unknown3[1] = IVAL(req->in.body, 0x0C);
io->smb2.in.unknown3[2] = IVAL(req->in.body, 0x10);
io->smb2.in.unknown3[3] = IVAL(req->in.body, 0x14);
io->smb2.in.access_mask = IVAL(req->in.body, 0x18);
io->smb2.in.file_attr = IVAL(req->in.body, 0x1C);
io->smb2.in.share_access = IVAL(req->in.body, 0x20);
io->smb2.in.open_disposition = IVAL(req->in.body, 0x24);
io->smb2.in.create_options = IVAL(req->in.body, 0x28);
SMB2SRV_CHECK(smb2_pull_o16s16_string(&req->in, io, req->in.body+0x2C, &io->smb2.in.fname));
SMB2SRV_CHECK(smb2_pull_o32s32_blob(&req->in, io, req->in.body+0x30, &blob));
/* TODO: parse the blob */
ZERO_STRUCT(io->smb2.in.eas);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_open(req->ntvfs, io));
}
static void smb2srv_close_send(struct ntvfs_request *ntvfs)
{
struct smb2srv_request *req;
union smb_close *io;
SMB2SRV_CHECK_ASYNC_STATUS(io, union smb_close);
SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x3C, false, 0));
SSVAL(req->out.body, 0x02, io->smb2.out.flags);
SIVAL(req->out.body, 0x04, io->smb2.out._pad);
SBVAL(req->out.body, 0x08, io->smb2.out.create_time);
SBVAL(req->out.body, 0x10, io->smb2.out.access_time);
SBVAL(req->out.body, 0x18, io->smb2.out.write_time);
SBVAL(req->out.body, 0x20, io->smb2.out.change_time);
SBVAL(req->out.body, 0x28, io->smb2.out.alloc_size);
SBVAL(req->out.body, 0x30, io->smb2.out.size);
SIVAL(req->out.body, 0x38, io->smb2.out.file_attr);
smb2srv_send_reply(req);
}
void smb2srv_close_recv(struct smb2srv_request *req)
{
union smb_close *io;
SMB2SRV_CHECK_BODY_SIZE(req, 0x18, false);
SMB2SRV_TALLOC_IO_PTR(io, union smb_close);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_close_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_CLOSE_SMB2;
io->smb2.in.flags = SVAL(req->in.body, 0x02);
io->smb2.in._pad = IVAL(req->in.body, 0x04);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x08);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_close(req->ntvfs, io));
}
static void smb2srv_flush_send(struct ntvfs_request *ntvfs)
{
struct smb2srv_request *req;
union smb_flush *io;
SMB2SRV_CHECK_ASYNC_STATUS(io, union smb_flush);
SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x04, false, 0));
SSVAL(req->out.body, 0x02, 0);
smb2srv_send_reply(req);
}
void smb2srv_flush_recv(struct smb2srv_request *req)
{
union smb_flush *io;
uint16_t _pad;
SMB2SRV_CHECK_BODY_SIZE(req, 0x18, false);
SMB2SRV_TALLOC_IO_PTR(io, union smb_flush);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_flush_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_FLUSH_SMB2;
_pad = SVAL(req->in.body, 0x02);
io->smb2.in.unknown = IVAL(req->in.body, 0x04);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x08);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_flush(req->ntvfs, io));
}
static void smb2srv_read_send(struct ntvfs_request *ntvfs)
{
struct smb2srv_request *req;
union smb_read *io;
SMB2SRV_CHECK_ASYNC_STATUS(io, union smb_read);
SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x10, true, io->smb2.out.data.length));
/* TODO: avoid the memcpy */
SMB2SRV_CHECK(smb2_push_o16s32_blob(&req->out, 0x02, io->smb2.out.data));
SBVAL(req->out.body, 0x08, io->smb2.out.unknown1);
smb2srv_send_reply(req);
}
void smb2srv_read_recv(struct smb2srv_request *req)
{
union smb_read *io;
SMB2SRV_CHECK_BODY_SIZE(req, 0x30, true);
SMB2SRV_TALLOC_IO_PTR(io, union smb_read);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_read_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_READ_SMB2;
io->smb2.in._pad = SVAL(req->in.body, 0x02);
io->smb2.in.length = IVAL(req->in.body, 0x04);
io->smb2.in.offset = BVAL(req->in.body, 0x08);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x10);
io->smb2.in.unknown1 = BVAL(req->in.body, 0x20);
io->smb2.in.unknown2 = BVAL(req->in.body, 0x28);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
/* preallocate the buffer for the backends */
io->smb2.out.data = data_blob_talloc(io, NULL, io->smb2.in.length);
if (io->smb2.out.data.length != io->smb2.in.length) {
SMB2SRV_CHECK(NT_STATUS_NO_MEMORY);
}
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_read(req->ntvfs, io));
}
static void smb2srv_write_send(struct ntvfs_request *ntvfs)
{
struct smb2srv_request *req;
union smb_write *io;
SMB2SRV_CHECK_ASYNC_STATUS(io, union smb_write);
SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x10, true, 0));
SSVAL(req->out.body, 0x02, io->smb2.out._pad);
SIVAL(req->out.body, 0x04, io->smb2.out.nwritten);
SBVAL(req->out.body, 0x08, io->smb2.out.unknown1);
smb2srv_send_reply(req);
}
void smb2srv_write_recv(struct smb2srv_request *req)
{
union smb_write *io;
SMB2SRV_CHECK_BODY_SIZE(req, 0x30, true);
SMB2SRV_TALLOC_IO_PTR(io, union smb_write);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_write_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
/* TODO: avoid the memcpy */
io->smb2.level = RAW_WRITE_SMB2;
SMB2SRV_CHECK(smb2_pull_o16s32_blob(&req->in, io, req->in.body+0x02, &io->smb2.in.data));
io->smb2.in.offset = BVAL(req->in.body, 0x08);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x10);
io->smb2.in.unknown1 = BVAL(req->in.body, 0x20);
io->smb2.in.unknown2 = BVAL(req->in.body, 0x28);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_write(req->ntvfs, io));
}
static void smb2srv_lock_send(struct ntvfs_request *ntvfs)
{
struct smb2srv_request *req;
union smb_lock *io;
SMB2SRV_CHECK_ASYNC_STATUS_ERR(io, union smb_lock);
SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x04, false, 0));
SSVAL(req->out.body, 0x02, io->smb2.out.unknown1);
smb2srv_send_reply(req);
}
void smb2srv_lock_recv(struct smb2srv_request *req)
{
union smb_lock *io;
SMB2SRV_CHECK_BODY_SIZE(req, 0x30, false);
SMB2SRV_TALLOC_IO_PTR(io, union smb_lock);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_lock_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_LOCK_SMB2;
io->smb2.in.unknown1 = SVAL(req->in.body, 0x02);
io->smb2.in.unknown2 = IVAL(req->in.body, 0x04);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x08);
io->smb2.in.offset = BVAL(req->in.body, 0x18);
io->smb2.in.count = BVAL(req->in.body, 0x20);
io->smb2.in.unknown5 = IVAL(req->in.body, 0x24);
io->smb2.in.flags = IVAL(req->in.body, 0x28);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_lock(req->ntvfs, io));
}
static void smb2srv_ioctl_send(struct ntvfs_request *ntvfs)
{
struct smb2srv_request *req;
union smb_ioctl *io;
SMB2SRV_CHECK_ASYNC_STATUS_ERR(io, union smb_ioctl);
SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x30, true, 0));
SSVAL(req->out.body, 0x02, io->smb2.out._pad);
SIVAL(req->out.body, 0x04, io->smb2.out.function);
if (io->smb2.level == RAW_IOCTL_SMB2_NO_HANDLE) {
struct smb2_handle h;
h.data[0] = UINT64_MAX;
h.data[1] = UINT64_MAX;
smb2_push_handle(req->out.body + 0x08, &h);
} else {
smb2srv_push_handle(req->out.body, 0x08,io->smb2.in.file.ntvfs);
}
SMB2SRV_CHECK(smb2_push_o32s32_blob(&req->out, 0x18, io->smb2.out.in));
SMB2SRV_CHECK(smb2_push_o32s32_blob(&req->out, 0x20, io->smb2.out.out));
SIVAL(req->out.body, 0x28, io->smb2.out.unknown2);
SIVAL(req->out.body, 0x2C, io->smb2.out.unknown3);
smb2srv_send_reply(req);
}
void smb2srv_ioctl_recv(struct smb2srv_request *req)
{
union smb_ioctl *io;
struct smb2_handle h;
SMB2SRV_CHECK_BODY_SIZE(req, 0x38, true);
SMB2SRV_TALLOC_IO_PTR(io, union smb_ioctl);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_ioctl_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
/* TODO: avoid the memcpy */
io->smb2.in._pad = SVAL(req->in.body, 0x02);
io->smb2.in.function = IVAL(req->in.body, 0x04);
/* file handle ... */
SMB2SRV_CHECK(smb2_pull_o32s32_blob(&req->in, io, req->in.body+0x18, &io->smb2.in.out));
io->smb2.in.unknown2 = IVAL(req->in.body, 0x20);
SMB2SRV_CHECK(smb2_pull_o32s32_blob(&req->in, io, req->in.body+0x24, &io->smb2.in.in));
io->smb2.in.max_response_size = IVAL(req->in.body, 0x2C);
io->smb2.in.flags = BVAL(req->in.body, 0x30);
smb2_pull_handle(req->in.body + 0x08, &h);
if (h.data[0] == UINT64_MAX && h.data[1] == UINT64_MAX) {
io->smb2.level = RAW_IOCTL_SMB2_NO_HANDLE;
} else {
io->smb2.level = RAW_IOCTL_SMB2;
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x08);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
}
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_ioctl(req->ntvfs, io));
}
static void smb2srv_notify_send(struct ntvfs_request *ntvfs)
{
struct smb2srv_request *req;
union smb_notify *io;
size_t size = 0;
int i;
uint8_t *p;
DATA_BLOB blob = data_blob(NULL, 0);
SMB2SRV_CHECK_ASYNC_STATUS(io, union smb_notify);
SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x08, true, 0));
#define MAX_BYTES_PER_CHAR 3
/* work out how big the reply buffer could be */
for (i=0;i<io->smb2.out.num_changes;i++) {
size += 12 + 3 + (1+strlen(io->smb2.out.changes[i].name.s)) * MAX_BYTES_PER_CHAR;
}
blob = data_blob_talloc(req, NULL, size);
if (size > 0 && !blob.data) {
SMB2SRV_CHECK(NT_STATUS_NO_MEMORY);
}
p = blob.data;
/* construct the changes buffer */
for (i=0;i<io->smb2.out.num_changes;i++) {
uint32_t ofs;
ssize_t len;
SIVAL(p, 4, io->smb2.out.changes[i].action);
len = push_string(lp_iconv_convenience(ntvfs->ctx->lp_ctx), p + 12, io->smb2.out.changes[i].name.s,
blob.length - (p+12 - blob.data), STR_UNICODE);
SIVAL(p, 8, len);
ofs = len + 12;
if (ofs & 3) {
int pad = 4 - (ofs & 3);
memset(p+ofs, 0, pad);
ofs += pad;
}
if (i == io->smb2.out.num_changes-1) {
SIVAL(p, 0, 0);
} else {
SIVAL(p, 0, ofs);
}
p += ofs;
}
blob.length = p - blob.data;
SMB2SRV_CHECK(smb2_push_o16s32_blob(&req->out, 0x02, blob));
smb2srv_send_reply(req);
}
void smb2srv_notify_recv(struct smb2srv_request *req)
{
union smb_notify *io;
SMB2SRV_CHECK_BODY_SIZE(req, 0x20, false);
SMB2SRV_TALLOC_IO_PTR(io, union smb_notify);
SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_notify_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
io->smb2.level = RAW_NOTIFY_SMB2;
io->smb2.in.recursive = SVAL(req->in.body, 0x02);
io->smb2.in.buffer_size = IVAL(req->in.body, 0x04);
io->smb2.in.file.ntvfs = smb2srv_pull_handle(req, req->in.body, 0x08);
io->smb2.in.completion_filter = IVAL(req->in.body, 0x18);
io->smb2.in.unknown = BVAL(req->in.body, 0x1C);
SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_notify(req->ntvfs, io));
}
void smb2srv_break_recv(struct smb2srv_request *req)
{
smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED);
}
|
