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s3-utils: net - Fix one error/usage message
[Samba/gebeck_regimport.git] / source3 / libsmb / clifsinfo.c
bloba5b7838b2a2620878832b462c8f2024187a9f6ac
1 /*
2 Unix SMB/CIFS implementation.
3 FS info functions
4 Copyright (C) Stefan (metze) Metzmacher 2003
5 Copyright (C) Jeremy Allison 2007
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "libsmb/libsmb.h"
23 #include "../libcli/auth/spnego.h"
24 #include "../auth/ntlmssp/ntlmssp.h"
25 #include "../lib/util/tevent_ntstatus.h"
26 #include "async_smb.h"
27 #include "../libcli/smb/smb_seal.h"
28 #include "trans2.h"
29 #include "ntlmssp_wrap.h"
30 #include "auth/gensec/gensec.h"
31
32 /****************************************************************************
33 Get UNIX extensions version info.
34 ****************************************************************************/
35
36 struct cli_unix_extensions_version_state {
37 struct cli_state *cli;
38 uint16_t setup[1];
39 uint8_t param[2];
40 uint16_t major, minor;
41 uint32_t caplow, caphigh;
42 };
43
44 static void cli_unix_extensions_version_done(struct tevent_req *subreq);
45
46 struct tevent_req *cli_unix_extensions_version_send(TALLOC_CTX *mem_ctx,
47 struct tevent_context *ev,
48 struct cli_state *cli)
49 {
50 struct tevent_req *req, *subreq;
51 struct cli_unix_extensions_version_state *state;
52
53 req = tevent_req_create(mem_ctx, &state,
54 struct cli_unix_extensions_version_state);
55 if (req == NULL) {
56 return NULL;
57 }
58 state->cli = cli;
59 SSVAL(state->setup, 0, TRANSACT2_QFSINFO);
60 SSVAL(state->param, 0, SMB_QUERY_CIFS_UNIX_INFO);
61
62 subreq = cli_trans_send(state, ev, cli, SMBtrans2,
63 NULL, 0, 0, 0,
64 state->setup, 1, 0,
65 state->param, 2, 0,
66 NULL, 0, 560);
67 if (tevent_req_nomem(subreq, req)) {
68 return tevent_req_post(req, ev);
69 }
70 tevent_req_set_callback(subreq, cli_unix_extensions_version_done, req);
71 return req;
72 }
73
74 static void cli_unix_extensions_version_done(struct tevent_req *subreq)
75 {
76 struct tevent_req *req = tevent_req_callback_data(
77 subreq, struct tevent_req);
78 struct cli_unix_extensions_version_state *state = tevent_req_data(
79 req, struct cli_unix_extensions_version_state);
80 uint8_t *data;
81 uint32_t num_data;
82 NTSTATUS status;
83
84 status = cli_trans_recv(subreq, state, NULL, NULL, 0, NULL,
85 NULL, 0, NULL, &data, 12, &num_data);
86 TALLOC_FREE(subreq);
87 if (!NT_STATUS_IS_OK(status)) {
88 tevent_req_nterror(req, status);
89 return;
90 }
91
92 state->major = SVAL(data, 0);
93 state->minor = SVAL(data, 2);
94 state->caplow = IVAL(data, 4);
95 state->caphigh = IVAL(data, 8);
96 TALLOC_FREE(data);
97 tevent_req_done(req);
98 }
99
100 NTSTATUS cli_unix_extensions_version_recv(struct tevent_req *req,
101 uint16_t *pmajor, uint16_t *pminor,
102 uint32_t *pcaplow,
103 uint32_t *pcaphigh)
104 {
105 struct cli_unix_extensions_version_state *state = tevent_req_data(
106 req, struct cli_unix_extensions_version_state);
107 NTSTATUS status;
108
109 if (tevent_req_is_nterror(req, &status)) {
110 return status;
111 }
112 *pmajor = state->major;
113 *pminor = state->minor;
114 *pcaplow = state->caplow;
115 *pcaphigh = state->caphigh;
116 state->cli->server_posix_capabilities = *pcaplow;
117 return NT_STATUS_OK;
118 }
119
120 NTSTATUS cli_unix_extensions_version(struct cli_state *cli, uint16 *pmajor,
121 uint16 *pminor, uint32 *pcaplow,
122 uint32 *pcaphigh)
123 {
124 TALLOC_CTX *frame = talloc_stackframe();
125 struct event_context *ev;
126 struct tevent_req *req;
127 NTSTATUS status = NT_STATUS_OK;
128
129 if (cli_has_async_calls(cli)) {
130 /*
131 * Can't use sync call while an async call is in flight
132 */
133 status = NT_STATUS_INVALID_PARAMETER;
134 goto fail;
135 }
136
137 ev = event_context_init(frame);
138 if (ev == NULL) {
139 status = NT_STATUS_NO_MEMORY;
140 goto fail;
141 }
142
143 req = cli_unix_extensions_version_send(frame, ev, cli);
144 if (req == NULL) {
145 status = NT_STATUS_NO_MEMORY;
146 goto fail;
147 }
148
149 if (!tevent_req_poll(req, ev)) {
150 status = map_nt_error_from_unix(errno);
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
165 struct 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
172 static void cli_set_unix_extensions_capabilities_done(
173 struct tevent_req *subreq);
174
175 struct 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
213 static 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
229 NTSTATUS cli_set_unix_extensions_capabilities_recv(struct tevent_req *req)
230 {
231 return tevent_req_simple_recv_ntstatus(req);
232 }
233
234 NTSTATUS cli_set_unix_extensions_capabilities(struct cli_state *cli,
235 uint16 major, uint16 minor,
236 uint32 caplow, uint32 caphigh)
237 {
238 struct tevent_context *ev;
239 struct tevent_req *req;
240 NTSTATUS status = NT_STATUS_NO_MEMORY;
241
242 if (cli_has_async_calls(cli)) {
243 return NT_STATUS_INVALID_PARAMETER;
244 }
245 ev = 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);
258 fail:
259 TALLOC_FREE(ev);
260 return status;
261 }
262
263 struct cli_get_fs_attr_info_state {
264 uint16_t setup[1];
265 uint8_t param[2];
266 uint32_t fs_attr;
267 };
268
269 static void cli_get_fs_attr_info_done(struct tevent_req *subreq);
270
271 struct 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
298 static 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
320 NTSTATUS 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
333 NTSTATUS 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 (cli_has_async_calls(cli)) {
340 return NT_STATUS_INVALID_PARAMETER;
341 }
342 ev = 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);
354 fail:
355 TALLOC_FREE(ev);
356 return status;
357 }
358
359 NTSTATUS 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
425 NTSTATUS 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 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
470 fail:
471 TALLOC_FREE(rdata);
472 return status;
473 }
474
475 NTSTATUS cli_get_posix_fs_info(struct cli_state *cli,
476 uint32 *optimal_transfer_size,
477 uint32 *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 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
538 static 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 Make a client state struct.
574 ******************************************************************************/
575
576 static struct smb_trans_enc_state *make_cli_enc_state(enum smb_trans_enc_type smb_enc_type)
577 {
578 struct smb_trans_enc_state *es = NULL;
579 es = SMB_MALLOC_P(struct smb_trans_enc_state);
580 if (!es) {
581 return NULL;
582 }
583 ZERO_STRUCTP(es);
584 es->smb_enc_type = smb_enc_type;
585
586 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
587 if (smb_enc_type == SMB_TRANS_ENC_GSS) {
588 es->s.gss_state = SMB_MALLOC_P(struct smb_tran_enc_state_gss);
589 if (!es->s.gss_state) {
590 SAFE_FREE(es);
591 return NULL;
592 }
593 ZERO_STRUCTP(es->s.gss_state);
594 }
595 #endif
596 return es;
597 }
598
599 /******************************************************************************
600 Start a raw ntlmssp encryption.
601 ******************************************************************************/
602
603 NTSTATUS cli_raw_ntlm_smb_encryption_start(struct cli_state *cli,
604 const char *user,
605 const char *pass,
606 const char *domain)
607 {
608 DATA_BLOB blob_in = data_blob_null;
609 DATA_BLOB blob_out = data_blob_null;
610 DATA_BLOB param_out = data_blob_null;
611 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
612 struct auth_ntlmssp_state *auth_ntlmssp_state;
613 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_NTLM);
614
615 if (!es) {
616 return NT_STATUS_NO_MEMORY;
617 }
618 status = auth_ntlmssp_client_prepare(NULL,
619 &auth_ntlmssp_state);
620 if (!NT_STATUS_IS_OK(status)) {
621 goto fail;
622 }
623
624 gensec_want_feature(auth_ntlmssp_state->gensec_security, GENSEC_FEATURE_SESSION_KEY);
625 gensec_want_feature(auth_ntlmssp_state->gensec_security, GENSEC_FEATURE_SEAL);
626
627 if (!NT_STATUS_IS_OK(status = auth_ntlmssp_set_username(auth_ntlmssp_state, user))) {
628 goto fail;
629 }
630 if (!NT_STATUS_IS_OK(status = auth_ntlmssp_set_domain(auth_ntlmssp_state, domain))) {
631 goto fail;
632 }
633 if (!NT_STATUS_IS_OK(status = auth_ntlmssp_set_password(auth_ntlmssp_state, pass))) {
634 goto fail;
635 }
636
637 if (!NT_STATUS_IS_OK(status = auth_ntlmssp_client_start(auth_ntlmssp_state))) {
638 goto fail;
639 }
640
641 do {
642 status = gensec_update(auth_ntlmssp_state->gensec_security, auth_ntlmssp_state,
643 NULL, blob_in, &blob_out);
644 data_blob_free(&blob_in);
645 data_blob_free(&param_out);
646 if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) || NT_STATUS_IS_OK(status)) {
647 NTSTATUS trans_status = enc_blob_send_receive(cli,
648 &blob_out,
649 &blob_in,
650 &param_out);
651 if (!NT_STATUS_EQUAL(trans_status,
652 NT_STATUS_MORE_PROCESSING_REQUIRED) &&
653 !NT_STATUS_IS_OK(trans_status)) {
654 status = trans_status;
655 } else {
656 if (param_out.length == 2) {
657 es->enc_ctx_num = SVAL(param_out.data, 0);
658 }
659 }
660 }
661 data_blob_free(&blob_out);
662 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
663
664 data_blob_free(&blob_in);
665
666 if (NT_STATUS_IS_OK(status)) {
667 /* Replace the old state, if any. */
668 if (cli->trans_enc_state) {
669 common_free_encryption_state(&cli->trans_enc_state);
670 }
671 /* We only need the gensec_security part from here.
672 * es is a malloc()ed pointer, so we cannot make
673 * gensec_security a talloc child */
674 es->s.gensec_security = talloc_move(NULL,
675 &auth_ntlmssp_state->gensec_security);
676 cli->trans_enc_state = es;
677 cli->trans_enc_state->enc_on = True;
678 es = NULL;
679 }
680
681 fail:
682 TALLOC_FREE(auth_ntlmssp_state);
683 common_free_encryption_state(&es);
684 return status;
685 }
686
687 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
688
689 #ifndef SMB_GSS_REQUIRED_FLAGS
690 #define SMB_GSS_REQUIRED_FLAGS (GSS_C_CONF_FLAG|GSS_C_INTEG_FLAG|GSS_C_MUTUAL_FLAG|GSS_C_REPLAY_FLAG|GSS_C_SEQUENCE_FLAG)
691 #endif
692
693 /******************************************************************************
694 Get client gss blob to send to a server.
695 ******************************************************************************/
696
697 static NTSTATUS make_cli_gss_blob(TALLOC_CTX *ctx,
698 struct smb_trans_enc_state *es,
699 const char *service,
700 const char *host,
701 NTSTATUS status_in,
702 DATA_BLOB spnego_blob_in,
703 DATA_BLOB *p_blob_out)
704 {
705 const char *krb_mechs[] = {OID_KERBEROS5, NULL};
706 OM_uint32 ret;
707 OM_uint32 min;
708 gss_name_t srv_name;
709 gss_buffer_desc input_name;
710 gss_buffer_desc *p_tok_in;
711 gss_buffer_desc tok_out, tok_in;
712 DATA_BLOB blob_out = data_blob_null;
713 DATA_BLOB blob_in = data_blob_null;
714 char *host_princ_s = NULL;
715 OM_uint32 ret_flags = 0;
716 NTSTATUS status = NT_STATUS_OK;
717
718 gss_OID_desc nt_hostbased_service =
719 {10, discard_const_p(char, "\x2a\x86\x48\x86\xf7\x12\x01\x02\x01\x04")};
720
721 memset(&tok_out, '\0', sizeof(tok_out));
722
723 /* Get a ticket for the service@host */
724 if (asprintf(&host_princ_s, "%s@%s", service, host) == -1) {
725 return NT_STATUS_NO_MEMORY;
726 }
727
728 input_name.value = host_princ_s;
729 input_name.length = strlen(host_princ_s) + 1;
730
731 ret = gss_import_name(&min,
732 &input_name,
733 &nt_hostbased_service,
734 &srv_name);
735
736 if (ret != GSS_S_COMPLETE) {
737 SAFE_FREE(host_princ_s);
738 return map_nt_error_from_gss(ret, min);
739 }
740
741 if (spnego_blob_in.length == 0) {
742 p_tok_in = GSS_C_NO_BUFFER;
743 } else {
744 /* Remove the SPNEGO wrapper */
745 if (!spnego_parse_auth_response(ctx, spnego_blob_in, status_in, OID_KERBEROS5, &blob_in)) {
746 status = NT_STATUS_UNSUCCESSFUL;
747 goto fail;
748 }
749 tok_in.value = blob_in.data;
750 tok_in.length = blob_in.length;
751 p_tok_in = &tok_in;
752 }
753
754 ret = gss_init_sec_context(&min,
755 GSS_C_NO_CREDENTIAL, /* Use our default cred. */
756 &es->s.gss_state->gss_ctx,
757 srv_name,
758 GSS_C_NO_OID, /* default OID. */
759 GSS_C_MUTUAL_FLAG | GSS_C_REPLAY_FLAG | GSS_C_SEQUENCE_FLAG | GSS_C_DELEG_FLAG,
760 GSS_C_INDEFINITE, /* requested ticket lifetime. */
761 NULL, /* no channel bindings */
762 p_tok_in,
763 NULL, /* ignore mech type */
764 &tok_out,
765 &ret_flags,
766 NULL); /* ignore time_rec */
767
768 status = map_nt_error_from_gss(ret, min);
769 if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
770 ADS_STATUS adss = ADS_ERROR_GSS(ret, min);
771 DEBUG(10,("make_cli_gss_blob: gss_init_sec_context failed with %s\n",
772 ads_errstr(adss)));
773 goto fail;
774 }
775
776 if ((ret_flags & SMB_GSS_REQUIRED_FLAGS) != SMB_GSS_REQUIRED_FLAGS) {
777 status = NT_STATUS_ACCESS_DENIED;
778 }
779
780 blob_out = data_blob_talloc(ctx, tok_out.value, tok_out.length);
781
782 /* Wrap in an SPNEGO wrapper */
783 *p_blob_out = spnego_gen_negTokenInit(ctx, krb_mechs, &blob_out, NULL);
784
785 fail:
786
787 data_blob_free(&blob_out);
788 data_blob_free(&blob_in);
789 SAFE_FREE(host_princ_s);
790 gss_release_name(&min, &srv_name);
791 if (tok_out.value) {
792 gss_release_buffer(&min, &tok_out);
793 }
794 return status;
795 }
796
797 /******************************************************************************
798 Start a SPNEGO gssapi encryption context.
799 ******************************************************************************/
800
801 NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
802 {
803 DATA_BLOB blob_recv = data_blob_null;
804 DATA_BLOB blob_send = data_blob_null;
805 DATA_BLOB param_out = data_blob_null;
806 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
807 fstring fqdn;
808 const char *servicename;
809 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_GSS);
810
811 if (!es) {
812 return NT_STATUS_NO_MEMORY;
813 }
814
815 name_to_fqdn(fqdn, cli_state_remote_name(cli));
816 strlower_m(fqdn);
817
818 servicename = "cifs";
819 status = make_cli_gss_blob(talloc_tos(), es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
820 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
821 servicename = "host";
822 status = make_cli_gss_blob(talloc_tos(), es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
823 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
824 goto fail;
825 }
826 }
827
828 do {
829 data_blob_free(&blob_recv);
830 status = enc_blob_send_receive(cli, &blob_send, &blob_recv, &param_out);
831 if (param_out.length == 2) {
832 es->enc_ctx_num = SVAL(param_out.data, 0);
833 }
834 data_blob_free(&blob_send);
835 status = make_cli_gss_blob(talloc_tos(), es, servicename, fqdn, status, blob_recv, &blob_send);
836 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
837 data_blob_free(&blob_recv);
838
839 if (NT_STATUS_IS_OK(status)) {
840 /* Replace the old state, if any. */
841 if (cli->trans_enc_state) {
842 common_free_encryption_state(&cli->trans_enc_state);
843 }
844 cli->trans_enc_state = es;
845 cli->trans_enc_state->enc_on = True;
846 es = NULL;
847 }
848
849 fail:
850
851 common_free_encryption_state(&es);
852 return status;
853 }
854 #else
855 NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
856 {
857 return NT_STATUS_NOT_SUPPORTED;
858 }
859 #endif
860
861 /********************************************************************
862 Ensure a connection is encrypted.
863 ********************************************************************/
864
865 NTSTATUS cli_force_encryption(struct cli_state *c,
866 const char *username,
867 const char *password,
868 const char *domain)
869 {
870 uint16 major, minor;
871 uint32 caplow, caphigh;
872 NTSTATUS status;
873
874 if (!SERVER_HAS_UNIX_CIFS(c)) {
875 return NT_STATUS_NOT_SUPPORTED;
876 }
877
878 status = cli_unix_extensions_version(c, &major, &minor, &caplow,
879 &caphigh);
880 if (!NT_STATUS_IS_OK(status)) {
881 DEBUG(10, ("cli_force_encryption: cli_unix_extensions_version "
882 "returned %s\n", nt_errstr(status)));
883 return NT_STATUS_UNKNOWN_REVISION;
884 }
885
886 if (!(caplow & CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP)) {
887 return NT_STATUS_UNSUPPORTED_COMPRESSION;
888 }
889
890 if (c->use_kerberos) {
891 return cli_gss_smb_encryption_start(c);
892 }
893 return cli_raw_ntlm_smb_encryption_start(c,
894 username,
895 password,
896 domain);
897 }
reg import