source: vendor/current/source3/libsmb/clifsinfo.c

Last change on this file was 988, checked in by Silvan Scherrer, 9 years ago

Samba Server: update vendor to version 4.4.3
File size: 20.7 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3 FS info functions
4 Copyright (C) Stefan (metze) Metzmacher 2003
5 Copyright (C) Jeremy Allison 2007
6 Copyright (C) Andrew Bartlett 2011
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 "libsmb/libsmb.h"
24#include "../lib/util/tevent_ntstatus.h"
25#include "async_smb.h"
26#include "../libcli/smb/smb_seal.h"
27#include "trans2.h"
28#include "auth_generic.h"
29#include "auth/gensec/gensec.h"
30#include "../libcli/smb/smbXcli_base.h"
31#include "auth/credentials/credentials.h"
32
33/****************************************************************************
34 Get UNIX extensions version info.
35****************************************************************************/
36
37struct cli_unix_extensions_version_state {
38 struct cli_state *cli;
39 uint16_t setup[1];
40 uint8_t param[2];
41 uint16_t major, minor;
42 uint32_t caplow, caphigh;
43};
44
45static void cli_unix_extensions_version_done(struct tevent_req *subreq);
46
47struct tevent_req *cli_unix_extensions_version_send(TALLOC_CTX *mem_ctx,
48 struct tevent_context *ev,
49 struct cli_state *cli)
50{
51 struct tevent_req *req, *subreq;
52 struct cli_unix_extensions_version_state *state;
53
54 req = tevent_req_create(mem_ctx, &state,
55 struct cli_unix_extensions_version_state);
56 if (req == NULL) {
57 return NULL;
58 }
59 state->cli = cli;
60 SSVAL(state->setup, 0, TRANSACT2_QFSINFO);
61 SSVAL(state->param, 0, SMB_QUERY_CIFS_UNIX_INFO);
62
63 subreq = cli_trans_send(state, ev, cli, SMBtrans2,
64 NULL, 0, 0, 0,
65 state->setup, 1, 0,
66 state->param, 2, 0,
67 NULL, 0, 560);
68 if (tevent_req_nomem(subreq, req)) {
69 return tevent_req_post(req, ev);
70 }
71 tevent_req_set_callback(subreq, cli_unix_extensions_version_done, req);
72 return req;
73}
74
75static void cli_unix_extensions_version_done(struct tevent_req *subreq)
76{
77 struct tevent_req *req = tevent_req_callback_data(
78 subreq, struct tevent_req);
79 struct cli_unix_extensions_version_state *state = tevent_req_data(
80 req, struct cli_unix_extensions_version_state);
81 uint8_t *data;
82 uint32_t num_data;
83 NTSTATUS status;
84
85 status = cli_trans_recv(subreq, state, NULL, NULL, 0, NULL,
86 NULL, 0, NULL, &data, 12, &num_data);
87 TALLOC_FREE(subreq);
88 if (!NT_STATUS_IS_OK(status)) {
89 tevent_req_nterror(req, status);
90 return;
91 }
92
93 state->major = SVAL(data, 0);
94 state->minor = SVAL(data, 2);
95 state->caplow = IVAL(data, 4);
96 state->caphigh = IVAL(data, 8);
97 TALLOC_FREE(data);
98 tevent_req_done(req);
99}
100
101NTSTATUS cli_unix_extensions_version_recv(struct tevent_req *req,
102 uint16_t *pmajor, uint16_t *pminor,
103 uint32_t *pcaplow,
104 uint32_t *pcaphigh)
105{
106 struct cli_unix_extensions_version_state *state = tevent_req_data(
107 req, struct cli_unix_extensions_version_state);
108 NTSTATUS status;
109
110 if (tevent_req_is_nterror(req, &status)) {
111 return status;
112 }
113 *pmajor = state->major;
114 *pminor = state->minor;
115 *pcaplow = state->caplow;
116 *pcaphigh = state->caphigh;
117 state->cli->server_posix_capabilities = *pcaplow;
118 return NT_STATUS_OK;
119}
120
121NTSTATUS cli_unix_extensions_version(struct cli_state *cli, uint16_t *pmajor,
122 uint16_t *pminor, uint32_t *pcaplow,
123 uint32_t *pcaphigh)
124{
125 TALLOC_CTX *frame = talloc_stackframe();
126 struct tevent_context *ev;
127 struct tevent_req *req;
128 NTSTATUS status = NT_STATUS_OK;
129
130 if (smbXcli_conn_has_async_calls(cli->conn)) {
131 /*
132 * Can't use sync call while an async call is in flight
133 */
134 status = NT_STATUS_INVALID_PARAMETER;
135 goto fail;
136 }
137
138 ev = samba_tevent_context_init(frame);
139 if (ev == NULL) {
140 status = NT_STATUS_NO_MEMORY;
141 goto fail;
142 }
143
144 req = cli_unix_extensions_version_send(frame, ev, cli);
145 if (req == NULL) {
146 status = NT_STATUS_NO_MEMORY;
147 goto fail;
148 }
149
150 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
151 goto fail;
152 }
153
154 status = cli_unix_extensions_version_recv(req, pmajor, pminor, pcaplow,
155 pcaphigh);
156 fail:
157 TALLOC_FREE(frame);
158 return status;
159}
160
161/****************************************************************************
162 Set UNIX extensions capabilities.
163****************************************************************************/
164
165struct cli_set_unix_extensions_capabilities_state {
166 struct cli_state *cli;
167 uint16_t setup[1];
168 uint8_t param[4];
169 uint8_t data[12];
170};
171
172static void cli_set_unix_extensions_capabilities_done(
173 struct tevent_req *subreq);
174
175struct tevent_req *cli_set_unix_extensions_capabilities_send(
176 TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct cli_state *cli,
177 uint16_t major, uint16_t minor, uint32_t caplow, uint32_t caphigh)
178{
179 struct tevent_req *req, *subreq;
180 struct cli_set_unix_extensions_capabilities_state *state;
181
182 req = tevent_req_create(
183 mem_ctx, &state,
184 struct cli_set_unix_extensions_capabilities_state);
185 if (req == NULL) {
186 return NULL;
187 }
188
189 state->cli = cli;
190 SSVAL(state->setup+0, 0, TRANSACT2_SETFSINFO);
191
192 SSVAL(state->param, 0, 0);
193 SSVAL(state->param, 2, SMB_SET_CIFS_UNIX_INFO);
194
195 SSVAL(state->data, 0, major);
196 SSVAL(state->data, 2, minor);
197 SIVAL(state->data, 4, caplow);
198 SIVAL(state->data, 8, caphigh);
199
200 subreq = cli_trans_send(state, ev, cli, SMBtrans2,
201 NULL, 0, 0, 0,
202 state->setup, 1, 0,
203 state->param, 4, 0,
204 state->data, 12, 560);
205 if (tevent_req_nomem(subreq, req)) {
206 return tevent_req_post(req, ev);
207 }
208 tevent_req_set_callback(
209 subreq, cli_set_unix_extensions_capabilities_done, req);
210 return req;
211}
212
213static void cli_set_unix_extensions_capabilities_done(
214 struct tevent_req *subreq)
215{
216 struct tevent_req *req = tevent_req_callback_data(
217 subreq, struct tevent_req);
218 struct cli_set_unix_extensions_capabilities_state *state = tevent_req_data(
219 req, struct cli_set_unix_extensions_capabilities_state);
220
221 NTSTATUS status = cli_trans_recv(subreq, NULL, NULL, NULL, 0, NULL,
222 NULL, 0, NULL, NULL, 0, NULL);
223 if (NT_STATUS_IS_OK(status)) {
224 state->cli->requested_posix_capabilities = IVAL(state->data, 4);
225 }
226 tevent_req_simple_finish_ntstatus(subreq, status);
227}
228
229NTSTATUS cli_set_unix_extensions_capabilities_recv(struct tevent_req *req)
230{
231 return tevent_req_simple_recv_ntstatus(req);
232}
233
234NTSTATUS cli_set_unix_extensions_capabilities(struct cli_state *cli,
235 uint16_t major, uint16_t minor,
236 uint32_t caplow, uint32_t caphigh)
237{
238 struct tevent_context *ev;
239 struct tevent_req *req;
240 NTSTATUS status = NT_STATUS_NO_MEMORY;
241
242 if (smbXcli_conn_has_async_calls(cli->conn)) {
243 return NT_STATUS_INVALID_PARAMETER;
244 }
245 ev = samba_tevent_context_init(talloc_tos());
246 if (ev == NULL) {
247 goto fail;
248 }
249 req = cli_set_unix_extensions_capabilities_send(
250 ev, ev, cli, major, minor, caplow, caphigh);
251 if (req == NULL) {
252 goto fail;
253 }
254 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
255 goto fail;
256 }
257 status = cli_set_unix_extensions_capabilities_recv(req);
258fail:
259 TALLOC_FREE(ev);
260 return status;
261}
262
263struct cli_get_fs_attr_info_state {
264 uint16_t setup[1];
265 uint8_t param[2];
266 uint32_t fs_attr;
267};
268
269static void cli_get_fs_attr_info_done(struct tevent_req *subreq);
270
271struct tevent_req *cli_get_fs_attr_info_send(TALLOC_CTX *mem_ctx,
272 struct tevent_context *ev,
273 struct cli_state *cli)
274{
275 struct tevent_req *subreq, *req;
276 struct cli_get_fs_attr_info_state *state;
277
278 req = tevent_req_create(mem_ctx, &state,
279 struct cli_get_fs_attr_info_state);
280 if (req == NULL) {
281 return NULL;
282 }
283 SSVAL(state->setup+0, 0, TRANSACT2_QFSINFO);
284 SSVAL(state->param+0, 0, SMB_QUERY_FS_ATTRIBUTE_INFO);
285
286 subreq = cli_trans_send(state, ev, cli, SMBtrans2,
287 NULL, 0, 0, 0,
288 state->setup, 1, 0,
289 state->param, 2, 0,
290 NULL, 0, 560);
291 if (tevent_req_nomem(subreq, req)) {
292 return tevent_req_post(req, ev);
293 }
294 tevent_req_set_callback(subreq, cli_get_fs_attr_info_done, req);
295 return req;
296}
297
298static void cli_get_fs_attr_info_done(struct tevent_req *subreq)
299{
300 struct tevent_req *req = tevent_req_callback_data(
301 subreq, struct tevent_req);
302 struct cli_get_fs_attr_info_state *state = tevent_req_data(
303 req, struct cli_get_fs_attr_info_state);
304 uint8_t *data;
305 uint32_t num_data;
306 NTSTATUS status;
307
308 status = cli_trans_recv(subreq, talloc_tos(), NULL, NULL, 0, NULL,
309 NULL, 0, NULL, &data, 12, &num_data);
310 TALLOC_FREE(subreq);
311 if (!NT_STATUS_IS_OK(status)) {
312 tevent_req_nterror(req, status);
313 return;
314 }
315 state->fs_attr = IVAL(data, 0);
316 TALLOC_FREE(data);
317 tevent_req_done(req);
318}
319
320NTSTATUS cli_get_fs_attr_info_recv(struct tevent_req *req, uint32_t *fs_attr)
321{
322 struct cli_get_fs_attr_info_state *state = tevent_req_data(
323 req, struct cli_get_fs_attr_info_state);
324 NTSTATUS status;
325
326 if (tevent_req_is_nterror(req, &status)) {
327 return status;
328 }
329 *fs_attr = state->fs_attr;
330 return NT_STATUS_OK;
331}
332
333NTSTATUS cli_get_fs_attr_info(struct cli_state *cli, uint32_t *fs_attr)
334{
335 struct tevent_context *ev;
336 struct tevent_req *req;
337 NTSTATUS status = NT_STATUS_NO_MEMORY;
338
339 if (smbXcli_conn_has_async_calls(cli->conn)) {
340 return NT_STATUS_INVALID_PARAMETER;
341 }
342 ev = samba_tevent_context_init(talloc_tos());
343 if (ev == NULL) {
344 goto fail;
345 }
346 req = cli_get_fs_attr_info_send(ev, ev, cli);
347 if (req == NULL) {
348 goto fail;
349 }
350 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
351 goto fail;
352 }
353 status = cli_get_fs_attr_info_recv(req, fs_attr);
354fail:
355 TALLOC_FREE(ev);
356 return status;
357}
358
359NTSTATUS cli_get_fs_volume_info(struct cli_state *cli,
360 TALLOC_CTX *mem_ctx,
361 char **_volume_name,
362 uint32_t *pserial_number,
363 time_t *pdate)
364{
365 NTSTATUS status;
366 uint16_t recv_flags2;
367 uint16_t setup[1];
368 uint8_t param[2];
369 uint8_t *rdata;
370 uint32_t rdata_count;
371 unsigned int nlen;
372 char *volume_name = NULL;
373
374 SSVAL(setup, 0, TRANSACT2_QFSINFO);
375 SSVAL(param,0,SMB_QUERY_FS_VOLUME_INFO);
376
377 status = cli_trans(talloc_tos(), cli, SMBtrans2,
378 NULL, 0, 0, 0,
379 setup, 1, 0,
380 param, 2, 0,
381 NULL, 0, 560,
382 &recv_flags2,
383 NULL, 0, NULL,
384 NULL, 0, NULL,
385 &rdata, 18, &rdata_count);
386 if (!NT_STATUS_IS_OK(status)) {
387 return status;
388 }
389
390 if (pdate) {
391 struct timespec ts;
392 ts = interpret_long_date((char *)rdata);
393 *pdate = ts.tv_sec;
394 }
395 if (pserial_number) {
396 *pserial_number = IVAL(rdata,8);
397 }
398 nlen = IVAL(rdata,12);
399 if (nlen > (rdata_count - 18)) {
400 TALLOC_FREE(rdata);
401 return NT_STATUS_INVALID_NETWORK_RESPONSE;
402 }
403
404 clistr_pull_talloc(mem_ctx,
405 (const char *)rdata,
406 recv_flags2,
407 &volume_name,
408 rdata + 18,
409 nlen, STR_UNICODE);
410 if (volume_name == NULL) {
411 status = map_nt_error_from_unix(errno);
412 TALLOC_FREE(rdata);
413 return status;
414 }
415
416 /* todo: but not yet needed
417 * return the other stuff
418 */
419
420 *_volume_name = volume_name;
421 TALLOC_FREE(rdata);
422 return NT_STATUS_OK;
423}
424
425NTSTATUS cli_get_fs_full_size_info(struct cli_state *cli,
426 uint64_t *total_allocation_units,
427 uint64_t *caller_allocation_units,
428 uint64_t *actual_allocation_units,
429 uint64_t *sectors_per_allocation_unit,
430 uint64_t *bytes_per_sector)
431{
432 uint16_t setup[1];
433 uint8_t param[2];
434 uint8_t *rdata = NULL;
435 uint32_t rdata_count;
436 NTSTATUS status;
437
438 SSVAL(setup, 0, TRANSACT2_QFSINFO);
439 SSVAL(param, 0, SMB_FS_FULL_SIZE_INFORMATION);
440
441 status = cli_trans(talloc_tos(), cli, SMBtrans2,
442 NULL, 0, 0, 0,
443 setup, 1, 0, /* setup */
444 param, 2, 0, /* param */
445 NULL, 0, 560, /* data */
446 NULL,
447 NULL, 0, NULL, /* rsetup */
448 NULL, 0, NULL, /* rparam */
449 &rdata, 32, &rdata_count); /* rdata */
450 if (!NT_STATUS_IS_OK(status)) {
451 goto fail;
452 }
453
454 if (total_allocation_units) {
455 *total_allocation_units = BIG_UINT(rdata, 0);
456 }
457 if (caller_allocation_units) {
458 *caller_allocation_units = BIG_UINT(rdata,8);
459 }
460 if (actual_allocation_units) {
461 *actual_allocation_units = BIG_UINT(rdata,16);
462 }
463 if (sectors_per_allocation_unit) {
464 *sectors_per_allocation_unit = IVAL(rdata,24);
465 }
466 if (bytes_per_sector) {
467 *bytes_per_sector = IVAL(rdata,28);
468 }
469
470fail:
471 TALLOC_FREE(rdata);
472 return status;
473}
474
475NTSTATUS cli_get_posix_fs_info(struct cli_state *cli,
476 uint32_t *optimal_transfer_size,
477 uint32_t *block_size,
478 uint64_t *total_blocks,
479 uint64_t *blocks_available,
480 uint64_t *user_blocks_available,
481 uint64_t *total_file_nodes,
482 uint64_t *free_file_nodes,
483 uint64_t *fs_identifier)
484{
485 uint16_t setup[1];
486 uint8_t param[2];
487 uint8_t *rdata = NULL;
488 uint32_t rdata_count;
489 NTSTATUS status;
490
491 SSVAL(setup, 0, TRANSACT2_QFSINFO);
492 SSVAL(param,0,SMB_QUERY_POSIX_FS_INFO);
493
494 status = cli_trans(talloc_tos(), cli, SMBtrans2, NULL, 0, 0, 0,
495 setup, 1, 0,
496 param, 2, 0,
497 NULL, 0, 560,
498 NULL,
499 NULL, 0, NULL, /* rsetup */
500 NULL, 0, NULL, /* rparam */
501 &rdata, 56, &rdata_count);
502 if (!NT_STATUS_IS_OK(status)) {
503 return status;
504 }
505
506 if (optimal_transfer_size) {
507 *optimal_transfer_size = IVAL(rdata, 0);
508 }
509 if (block_size) {
510 *block_size = IVAL(rdata,4);
511 }
512 if (total_blocks) {
513 *total_blocks = BIG_UINT(rdata,8);
514 }
515 if (blocks_available) {
516 *blocks_available = BIG_UINT(rdata,16);
517 }
518 if (user_blocks_available) {
519 *user_blocks_available = BIG_UINT(rdata,24);
520 }
521 if (total_file_nodes) {
522 *total_file_nodes = BIG_UINT(rdata,32);
523 }
524 if (free_file_nodes) {
525 *free_file_nodes = BIG_UINT(rdata,40);
526 }
527 if (fs_identifier) {
528 *fs_identifier = BIG_UINT(rdata,48);
529 }
530 return NT_STATUS_OK;
531}
532
533
534/******************************************************************************
535 Send/receive the request encryption blob.
536******************************************************************************/
537
538static NTSTATUS enc_blob_send_receive(struct cli_state *cli, DATA_BLOB *in, DATA_BLOB *out, DATA_BLOB *param_out)
539{
540 uint16_t setup[1];
541 uint8_t param[4];
542 uint8_t *rparam=NULL, *rdata=NULL;
543 uint32_t num_rparam, num_rdata;
544 NTSTATUS status;
545
546 SSVAL(setup+0, 0, TRANSACT2_SETFSINFO);
547 SSVAL(param,0,0);
548 SSVAL(param,2,SMB_REQUEST_TRANSPORT_ENCRYPTION);
549
550 status = cli_trans(talloc_tos(), cli, SMBtrans2, NULL, 0, 0, 0,
551 setup, 1, 0,
552 param, 4, 2,
553 (uint8_t *)in->data, in->length, CLI_BUFFER_SIZE,
554 NULL, /* recv_flags */
555 NULL, 0, NULL, /* rsetup */
556 &rparam, 0, &num_rparam,
557 &rdata, 0, &num_rdata);
558
559 if (!NT_STATUS_IS_OK(status) &&
560 !NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
561 return status;
562 }
563
564 *out = data_blob(rdata, num_rdata);
565 *param_out = data_blob(rparam, num_rparam);
566
567 TALLOC_FREE(rparam);
568 TALLOC_FREE(rdata);
569 return status;
570}
571
572/******************************************************************************
573 Start a raw ntlmssp encryption.
574******************************************************************************/
575
576NTSTATUS cli_raw_ntlm_smb_encryption_start(struct cli_state *cli,
577 const char *user,
578 const char *pass,
579 const char *domain)
580{
581 DATA_BLOB blob_in = data_blob_null;
582 DATA_BLOB blob_out = data_blob_null;
583 DATA_BLOB param_out = data_blob_null;
584 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
585 struct auth_generic_state *auth_generic_state;
586 struct smb_trans_enc_state *es = talloc_zero(NULL, struct smb_trans_enc_state);
587 if (!es) {
588 return NT_STATUS_NO_MEMORY;
589 }
590 status = auth_generic_client_prepare(es,
591 &auth_generic_state);
592 if (!NT_STATUS_IS_OK(status)) {
593 goto fail;
594 }
595
596 gensec_want_feature(auth_generic_state->gensec_security, GENSEC_FEATURE_SESSION_KEY);
597 gensec_want_feature(auth_generic_state->gensec_security, GENSEC_FEATURE_SEAL);
598
599 if (!NT_STATUS_IS_OK(status = auth_generic_set_username(auth_generic_state, user))) {
600 goto fail;
601 }
602 if (!NT_STATUS_IS_OK(status = auth_generic_set_domain(auth_generic_state, domain))) {
603 goto fail;
604 }
605 if (!NT_STATUS_IS_OK(status = auth_generic_set_password(auth_generic_state, pass))) {
606 goto fail;
607 }
608
609 if (!NT_STATUS_IS_OK(status = auth_generic_client_start(auth_generic_state, GENSEC_OID_NTLMSSP))) {
610 goto fail;
611 }
612
613 do {
614 status = gensec_update(auth_generic_state->gensec_security, auth_generic_state,
615 blob_in, &blob_out);
616 data_blob_free(&blob_in);
617 data_blob_free(&param_out);
618 if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) || NT_STATUS_IS_OK(status)) {
619 NTSTATUS trans_status = enc_blob_send_receive(cli,
620 &blob_out,
621 &blob_in,
622 &param_out);
623 if (!NT_STATUS_EQUAL(trans_status,
624 NT_STATUS_MORE_PROCESSING_REQUIRED) &&
625 !NT_STATUS_IS_OK(trans_status)) {
626 status = trans_status;
627 } else {
628 if (param_out.length == 2) {
629 es->enc_ctx_num = SVAL(param_out.data, 0);
630 }
631 }
632 }
633 data_blob_free(&blob_out);
634 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
635
636 data_blob_free(&blob_in);
637
638 if (NT_STATUS_IS_OK(status)) {
639 es->enc_on = true;
640 /* Replace the old state, if any. */
641 /* We only need the gensec_security part from here.
642 * es is a malloc()ed pointer, so we cannot make
643 * gensec_security a talloc child */
644 es->gensec_security = talloc_move(NULL,
645 &auth_generic_state->gensec_security);
646 smb1cli_conn_set_encryption(cli->conn, es);
647 es = NULL;
648 }
649
650 fail:
651 TALLOC_FREE(es);
652 return status;
653}
654
655/******************************************************************************
656 Start a SPNEGO gssapi encryption context.
657******************************************************************************/
658
659NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
660{
661 DATA_BLOB blob_recv = data_blob_null;
662 DATA_BLOB blob_send = data_blob_null;
663 DATA_BLOB param_out = data_blob_null;
664 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
665 struct auth_generic_state *auth_generic_state;
666 struct smb_trans_enc_state *es = talloc_zero(NULL, struct smb_trans_enc_state);
667
668 if (!es) {
669 return NT_STATUS_NO_MEMORY;
670 }
671
672 status = auth_generic_client_prepare(es,
673 &auth_generic_state);
674 if (!NT_STATUS_IS_OK(status)) {
675 goto fail;
676 }
677
678 gensec_want_feature(auth_generic_state->gensec_security, GENSEC_FEATURE_SESSION_KEY);
679 gensec_want_feature(auth_generic_state->gensec_security, GENSEC_FEATURE_SEAL);
680
681 cli_credentials_set_kerberos_state(auth_generic_state->credentials,
682 CRED_MUST_USE_KERBEROS);
683
684 status = gensec_set_target_service(auth_generic_state->gensec_security, "cifs");
685 if (!NT_STATUS_IS_OK(status)) {
686 goto fail;
687 }
688
689 status = gensec_set_target_hostname(auth_generic_state->gensec_security,
690 smbXcli_conn_remote_name(cli->conn));
691 if (!NT_STATUS_IS_OK(status)) {
692 goto fail;
693 }
694
695 if (!NT_STATUS_IS_OK(status = auth_generic_client_start(auth_generic_state, GENSEC_OID_SPNEGO))) {
696 goto fail;
697 }
698
699 status = gensec_update(auth_generic_state->gensec_security, talloc_tos(),
700 blob_recv, &blob_send);
701
702 do {
703 data_blob_free(&blob_recv);
704 status = enc_blob_send_receive(cli, &blob_send, &blob_recv, &param_out);
705 if (param_out.length == 2) {
706 es->enc_ctx_num = SVAL(param_out.data, 0);
707 }
708 data_blob_free(&blob_send);
709 status = gensec_update(auth_generic_state->gensec_security, talloc_tos(),
710 blob_recv, &blob_send);
711 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
712 data_blob_free(&blob_recv);
713
714 if (NT_STATUS_IS_OK(status)) {
715 if (!gensec_have_feature(auth_generic_state->gensec_security,
716 GENSEC_FEATURE_SIGN) ||
717 !gensec_have_feature(auth_generic_state->gensec_security,
718 GENSEC_FEATURE_SEAL)) {
719 status = NT_STATUS_ACCESS_DENIED;
720 }
721 }
722
723 if (NT_STATUS_IS_OK(status)) {
724 es->enc_on = true;
725 /* Replace the old state, if any. */
726 /* We only need the gensec_security part from here.
727 * es is a malloc()ed pointer, so we cannot make
728 * gensec_security a talloc child */
729 es->gensec_security = talloc_move(es,
730 &auth_generic_state->gensec_security);
731 smb1cli_conn_set_encryption(cli->conn, es);
732 es = NULL;
733 }
734fail:
735 TALLOC_FREE(es);
736 return status;
737}
738
739/********************************************************************
740 Ensure a connection is encrypted.
741********************************************************************/
742
743NTSTATUS cli_force_encryption(struct cli_state *c,
744 const char *username,
745 const char *password,
746 const char *domain)
747{
748 uint16_t major, minor;
749 uint32_t caplow, caphigh;
750 NTSTATUS status;
751
752 if (!SERVER_HAS_UNIX_CIFS(c)) {
753 return NT_STATUS_NOT_SUPPORTED;
754 }
755
756 status = cli_unix_extensions_version(c, &major, &minor, &caplow,
757 &caphigh);
758 if (!NT_STATUS_IS_OK(status)) {
759 DEBUG(10, ("cli_force_encryption: cli_unix_extensions_version "
760 "returned %s\n", nt_errstr(status)));
761 return NT_STATUS_UNKNOWN_REVISION;
762 }
763
764 if (!(caplow & CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP)) {
765 return NT_STATUS_UNSUPPORTED_COMPRESSION;
766 }
767
768 if (c->use_kerberos) {
769 return cli_gss_smb_encryption_start(c);
770 }
771 return cli_raw_ntlm_smb_encryption_start(c,
772 username,
773 password,
774 domain);
775}
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