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s4 dns: Implement RFC-compatible update prescan
[Samba/gebeck_regimport.git] / source3 / libsmb / clifsinfo.c
blobe0e42bded7451af4431c7fcd586b628c9d549582
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 #include "../libcli/smb/smbXcli_base.h"
32
33 /****************************************************************************
34 Get UNIX extensions version info.
35 ****************************************************************************/
36
37 struct 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
45 static void cli_unix_extensions_version_done(struct tevent_req *subreq);
46
47 struct 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
75 static 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
101 NTSTATUS 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
121 NTSTATUS cli_unix_extensions_version(struct cli_state *cli, uint16 *pmajor,
122 uint16 *pminor, uint32 *pcaplow,
123 uint32 *pcaphigh)
124 {
125 TALLOC_CTX *frame = talloc_stackframe();
126 struct event_context *ev;
127 struct tevent_req *req;
128 NTSTATUS status = NT_STATUS_OK;
129
130 if (cli_has_async_calls(cli)) {
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 = event_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(req, ev)) {
151 status = map_nt_error_from_unix(errno);
152 goto fail;
153 }
154
155 status = cli_unix_extensions_version_recv(req, pmajor, pminor, pcaplow,
156 pcaphigh);
157 fail:
158 TALLOC_FREE(frame);
159 return status;
160 }
161
162 /****************************************************************************
163 Set UNIX extensions capabilities.
164 ****************************************************************************/
165
166 struct cli_set_unix_extensions_capabilities_state {
167 struct cli_state *cli;
168 uint16_t setup[1];
169 uint8_t param[4];
170 uint8_t data[12];
171 };
172
173 static void cli_set_unix_extensions_capabilities_done(
174 struct tevent_req *subreq);
175
176 struct tevent_req *cli_set_unix_extensions_capabilities_send(
177 TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct cli_state *cli,
178 uint16_t major, uint16_t minor, uint32_t caplow, uint32_t caphigh)
179 {
180 struct tevent_req *req, *subreq;
181 struct cli_set_unix_extensions_capabilities_state *state;
182
183 req = tevent_req_create(
184 mem_ctx, &state,
185 struct cli_set_unix_extensions_capabilities_state);
186 if (req == NULL) {
187 return NULL;
188 }
189
190 state->cli = cli;
191 SSVAL(state->setup+0, 0, TRANSACT2_SETFSINFO);
192
193 SSVAL(state->param, 0, 0);
194 SSVAL(state->param, 2, SMB_SET_CIFS_UNIX_INFO);
195
196 SSVAL(state->data, 0, major);
197 SSVAL(state->data, 2, minor);
198 SIVAL(state->data, 4, caplow);
199 SIVAL(state->data, 8, caphigh);
200
201 subreq = cli_trans_send(state, ev, cli, SMBtrans2,
202 NULL, 0, 0, 0,
203 state->setup, 1, 0,
204 state->param, 4, 0,
205 state->data, 12, 560);
206 if (tevent_req_nomem(subreq, req)) {
207 return tevent_req_post(req, ev);
208 }
209 tevent_req_set_callback(
210 subreq, cli_set_unix_extensions_capabilities_done, req);
211 return req;
212 }
213
214 static void cli_set_unix_extensions_capabilities_done(
215 struct tevent_req *subreq)
216 {
217 struct tevent_req *req = tevent_req_callback_data(
218 subreq, struct tevent_req);
219 struct cli_set_unix_extensions_capabilities_state *state = tevent_req_data(
220 req, struct cli_set_unix_extensions_capabilities_state);
221
222 NTSTATUS status = cli_trans_recv(subreq, NULL, NULL, NULL, 0, NULL,
223 NULL, 0, NULL, NULL, 0, NULL);
224 if (NT_STATUS_IS_OK(status)) {
225 state->cli->requested_posix_capabilities = IVAL(state->data, 4);
226 }
227 tevent_req_simple_finish_ntstatus(subreq, status);
228 }
229
230 NTSTATUS cli_set_unix_extensions_capabilities_recv(struct tevent_req *req)
231 {
232 return tevent_req_simple_recv_ntstatus(req);
233 }
234
235 NTSTATUS cli_set_unix_extensions_capabilities(struct cli_state *cli,
236 uint16 major, uint16 minor,
237 uint32 caplow, uint32 caphigh)
238 {
239 struct tevent_context *ev;
240 struct tevent_req *req;
241 NTSTATUS status = NT_STATUS_NO_MEMORY;
242
243 if (cli_has_async_calls(cli)) {
244 return NT_STATUS_INVALID_PARAMETER;
245 }
246 ev = tevent_context_init(talloc_tos());
247 if (ev == NULL) {
248 goto fail;
249 }
250 req = cli_set_unix_extensions_capabilities_send(
251 ev, ev, cli, major, minor, caplow, caphigh);
252 if (req == NULL) {
253 goto fail;
254 }
255 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
256 goto fail;
257 }
258 status = cli_set_unix_extensions_capabilities_recv(req);
259 fail:
260 TALLOC_FREE(ev);
261 return status;
262 }
263
264 struct cli_get_fs_attr_info_state {
265 uint16_t setup[1];
266 uint8_t param[2];
267 uint32_t fs_attr;
268 };
269
270 static void cli_get_fs_attr_info_done(struct tevent_req *subreq);
271
272 struct tevent_req *cli_get_fs_attr_info_send(TALLOC_CTX *mem_ctx,
273 struct tevent_context *ev,
274 struct cli_state *cli)
275 {
276 struct tevent_req *subreq, *req;
277 struct cli_get_fs_attr_info_state *state;
278
279 req = tevent_req_create(mem_ctx, &state,
280 struct cli_get_fs_attr_info_state);
281 if (req == NULL) {
282 return NULL;
283 }
284 SSVAL(state->setup+0, 0, TRANSACT2_QFSINFO);
285 SSVAL(state->param+0, 0, SMB_QUERY_FS_ATTRIBUTE_INFO);
286
287 subreq = cli_trans_send(state, ev, cli, SMBtrans2,
288 NULL, 0, 0, 0,
289 state->setup, 1, 0,
290 state->param, 2, 0,
291 NULL, 0, 560);
292 if (tevent_req_nomem(subreq, req)) {
293 return tevent_req_post(req, ev);
294 }
295 tevent_req_set_callback(subreq, cli_get_fs_attr_info_done, req);
296 return req;
297 }
298
299 static void cli_get_fs_attr_info_done(struct tevent_req *subreq)
300 {
301 struct tevent_req *req = tevent_req_callback_data(
302 subreq, struct tevent_req);
303 struct cli_get_fs_attr_info_state *state = tevent_req_data(
304 req, struct cli_get_fs_attr_info_state);
305 uint8_t *data;
306 uint32_t num_data;
307 NTSTATUS status;
308
309 status = cli_trans_recv(subreq, talloc_tos(), NULL, NULL, 0, NULL,
310 NULL, 0, NULL, &data, 12, &num_data);
311 TALLOC_FREE(subreq);
312 if (!NT_STATUS_IS_OK(status)) {
313 tevent_req_nterror(req, status);
314 return;
315 }
316 state->fs_attr = IVAL(data, 0);
317 TALLOC_FREE(data);
318 tevent_req_done(req);
319 }
320
321 NTSTATUS cli_get_fs_attr_info_recv(struct tevent_req *req, uint32_t *fs_attr)
322 {
323 struct cli_get_fs_attr_info_state *state = tevent_req_data(
324 req, struct cli_get_fs_attr_info_state);
325 NTSTATUS status;
326
327 if (tevent_req_is_nterror(req, &status)) {
328 return status;
329 }
330 *fs_attr = state->fs_attr;
331 return NT_STATUS_OK;
332 }
333
334 NTSTATUS cli_get_fs_attr_info(struct cli_state *cli, uint32_t *fs_attr)
335 {
336 struct tevent_context *ev;
337 struct tevent_req *req;
338 NTSTATUS status = NT_STATUS_NO_MEMORY;
339
340 if (cli_has_async_calls(cli)) {
341 return NT_STATUS_INVALID_PARAMETER;
342 }
343 ev = tevent_context_init(talloc_tos());
344 if (ev == NULL) {
345 goto fail;
346 }
347 req = cli_get_fs_attr_info_send(ev, ev, cli);
348 if (req == NULL) {
349 goto fail;
350 }
351 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
352 goto fail;
353 }
354 status = cli_get_fs_attr_info_recv(req, fs_attr);
355 fail:
356 TALLOC_FREE(ev);
357 return status;
358 }
359
360 NTSTATUS cli_get_fs_volume_info(struct cli_state *cli,
361 TALLOC_CTX *mem_ctx,
362 char **_volume_name,
363 uint32_t *pserial_number,
364 time_t *pdate)
365 {
366 NTSTATUS status;
367 uint16_t recv_flags2;
368 uint16_t setup[1];
369 uint8_t param[2];
370 uint8_t *rdata;
371 uint32_t rdata_count;
372 unsigned int nlen;
373 char *volume_name = NULL;
374
375 SSVAL(setup, 0, TRANSACT2_QFSINFO);
376 SSVAL(param,0,SMB_QUERY_FS_VOLUME_INFO);
377
378 status = cli_trans(talloc_tos(), cli, SMBtrans2,
379 NULL, 0, 0, 0,
380 setup, 1, 0,
381 param, 2, 0,
382 NULL, 0, 560,
383 &recv_flags2,
384 NULL, 0, NULL,
385 NULL, 0, NULL,
386 &rdata, 18, &rdata_count);
387 if (!NT_STATUS_IS_OK(status)) {
388 return status;
389 }
390
391 if (pdate) {
392 struct timespec ts;
393 ts = interpret_long_date((char *)rdata);
394 *pdate = ts.tv_sec;
395 }
396 if (pserial_number) {
397 *pserial_number = IVAL(rdata,8);
398 }
399 nlen = IVAL(rdata,12);
400 if (nlen > (rdata_count - 18)) {
401 TALLOC_FREE(rdata);
402 return NT_STATUS_INVALID_NETWORK_RESPONSE;
403 }
404
405 clistr_pull_talloc(mem_ctx,
406 (const char *)rdata,
407 recv_flags2,
408 &volume_name,
409 rdata + 18,
410 nlen, STR_UNICODE);
411 if (volume_name == NULL) {
412 status = map_nt_error_from_unix(errno);
413 TALLOC_FREE(rdata);
414 return status;
415 }
416
417 /* todo: but not yet needed
418 * return the other stuff
419 */
420
421 *_volume_name = volume_name;
422 TALLOC_FREE(rdata);
423 return NT_STATUS_OK;
424 }
425
426 NTSTATUS cli_get_fs_full_size_info(struct cli_state *cli,
427 uint64_t *total_allocation_units,
428 uint64_t *caller_allocation_units,
429 uint64_t *actual_allocation_units,
430 uint64_t *sectors_per_allocation_unit,
431 uint64_t *bytes_per_sector)
432 {
433 uint16 setup[1];
434 uint8_t param[2];
435 uint8_t *rdata = NULL;
436 uint32_t rdata_count;
437 NTSTATUS status;
438
439 SSVAL(setup, 0, TRANSACT2_QFSINFO);
440 SSVAL(param, 0, SMB_FS_FULL_SIZE_INFORMATION);
441
442 status = cli_trans(talloc_tos(), cli, SMBtrans2,
443 NULL, 0, 0, 0,
444 setup, 1, 0, /* setup */
445 param, 2, 0, /* param */
446 NULL, 0, 560, /* data */
447 NULL,
448 NULL, 0, NULL, /* rsetup */
449 NULL, 0, NULL, /* rparam */
450 &rdata, 32, &rdata_count); /* rdata */
451 if (!NT_STATUS_IS_OK(status)) {
452 goto fail;
453 }
454
455 if (total_allocation_units) {
456 *total_allocation_units = BIG_UINT(rdata, 0);
457 }
458 if (caller_allocation_units) {
459 *caller_allocation_units = BIG_UINT(rdata,8);
460 }
461 if (actual_allocation_units) {
462 *actual_allocation_units = BIG_UINT(rdata,16);
463 }
464 if (sectors_per_allocation_unit) {
465 *sectors_per_allocation_unit = IVAL(rdata,24);
466 }
467 if (bytes_per_sector) {
468 *bytes_per_sector = IVAL(rdata,28);
469 }
470
471 fail:
472 TALLOC_FREE(rdata);
473 return status;
474 }
475
476 NTSTATUS cli_get_posix_fs_info(struct cli_state *cli,
477 uint32 *optimal_transfer_size,
478 uint32 *block_size,
479 uint64_t *total_blocks,
480 uint64_t *blocks_available,
481 uint64_t *user_blocks_available,
482 uint64_t *total_file_nodes,
483 uint64_t *free_file_nodes,
484 uint64_t *fs_identifier)
485 {
486 uint16 setup[1];
487 uint8_t param[2];
488 uint8_t *rdata = NULL;
489 uint32_t rdata_count;
490 NTSTATUS status;
491
492 SSVAL(setup, 0, TRANSACT2_QFSINFO);
493 SSVAL(param,0,SMB_QUERY_POSIX_FS_INFO);
494
495 status = cli_trans(talloc_tos(), cli, SMBtrans2, NULL, 0, 0, 0,
496 setup, 1, 0,
497 param, 2, 0,
498 NULL, 0, 560,
499 NULL,
500 NULL, 0, NULL, /* rsetup */
501 NULL, 0, NULL, /* rparam */
502 &rdata, 56, &rdata_count);
503 if (!NT_STATUS_IS_OK(status)) {
504 return status;
505 }
506
507 if (optimal_transfer_size) {
508 *optimal_transfer_size = IVAL(rdata, 0);
509 }
510 if (block_size) {
511 *block_size = IVAL(rdata,4);
512 }
513 if (total_blocks) {
514 *total_blocks = BIG_UINT(rdata,8);
515 }
516 if (blocks_available) {
517 *blocks_available = BIG_UINT(rdata,16);
518 }
519 if (user_blocks_available) {
520 *user_blocks_available = BIG_UINT(rdata,24);
521 }
522 if (total_file_nodes) {
523 *total_file_nodes = BIG_UINT(rdata,32);
524 }
525 if (free_file_nodes) {
526 *free_file_nodes = BIG_UINT(rdata,40);
527 }
528 if (fs_identifier) {
529 *fs_identifier = BIG_UINT(rdata,48);
530 }
531 return NT_STATUS_OK;
532 }
533
534
535 /******************************************************************************
536 Send/receive the request encryption blob.
537 ******************************************************************************/
538
539 static NTSTATUS enc_blob_send_receive(struct cli_state *cli, DATA_BLOB *in, DATA_BLOB *out, DATA_BLOB *param_out)
540 {
541 uint16_t setup[1];
542 uint8_t param[4];
543 uint8_t *rparam=NULL, *rdata=NULL;
544 uint32_t num_rparam, num_rdata;
545 NTSTATUS status;
546
547 SSVAL(setup+0, 0, TRANSACT2_SETFSINFO);
548 SSVAL(param,0,0);
549 SSVAL(param,2,SMB_REQUEST_TRANSPORT_ENCRYPTION);
550
551 status = cli_trans(talloc_tos(), cli, SMBtrans2, NULL, 0, 0, 0,
552 setup, 1, 0,
553 param, 4, 2,
554 (uint8_t *)in->data, in->length, CLI_BUFFER_SIZE,
555 NULL, /* recv_flags */
556 NULL, 0, NULL, /* rsetup */
557 &rparam, 0, &num_rparam,
558 &rdata, 0, &num_rdata);
559
560 if (!NT_STATUS_IS_OK(status) &&
561 !NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
562 return status;
563 }
564
565 *out = data_blob(rdata, num_rdata);
566 *param_out = data_blob(rparam, num_rparam);
567
568 TALLOC_FREE(rparam);
569 TALLOC_FREE(rdata);
570 return status;
571 }
572
573 /******************************************************************************
574 Make a client state struct.
575 ******************************************************************************/
576
577 static struct smb_trans_enc_state *make_cli_enc_state(enum smb_trans_enc_type smb_enc_type)
578 {
579 struct smb_trans_enc_state *es = NULL;
580 es = SMB_MALLOC_P(struct smb_trans_enc_state);
581 if (!es) {
582 return NULL;
583 }
584 ZERO_STRUCTP(es);
585 es->smb_enc_type = smb_enc_type;
586
587 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
588 if (smb_enc_type == SMB_TRANS_ENC_GSS) {
589 es->s.gss_state = SMB_MALLOC_P(struct smb_tran_enc_state_gss);
590 if (!es->s.gss_state) {
591 SAFE_FREE(es);
592 return NULL;
593 }
594 ZERO_STRUCTP(es->s.gss_state);
595 }
596 #endif
597 return es;
598 }
599
600 /******************************************************************************
601 Start a raw ntlmssp encryption.
602 ******************************************************************************/
603
604 NTSTATUS cli_raw_ntlm_smb_encryption_start(struct cli_state *cli,
605 const char *user,
606 const char *pass,
607 const char *domain)
608 {
609 DATA_BLOB blob_in = data_blob_null;
610 DATA_BLOB blob_out = data_blob_null;
611 DATA_BLOB param_out = data_blob_null;
612 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
613 struct auth_ntlmssp_state *auth_ntlmssp_state;
614 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_NTLM);
615
616 if (!es) {
617 return NT_STATUS_NO_MEMORY;
618 }
619 status = auth_ntlmssp_client_prepare(NULL,
620 &auth_ntlmssp_state);
621 if (!NT_STATUS_IS_OK(status)) {
622 goto fail;
623 }
624
625 gensec_want_feature(auth_ntlmssp_state->gensec_security, GENSEC_FEATURE_SESSION_KEY);
626 gensec_want_feature(auth_ntlmssp_state->gensec_security, GENSEC_FEATURE_SEAL);
627
628 if (!NT_STATUS_IS_OK(status = auth_ntlmssp_set_username(auth_ntlmssp_state, user))) {
629 goto fail;
630 }
631 if (!NT_STATUS_IS_OK(status = auth_ntlmssp_set_domain(auth_ntlmssp_state, domain))) {
632 goto fail;
633 }
634 if (!NT_STATUS_IS_OK(status = auth_ntlmssp_set_password(auth_ntlmssp_state, pass))) {
635 goto fail;
636 }
637
638 if (!NT_STATUS_IS_OK(status = auth_ntlmssp_client_start(auth_ntlmssp_state))) {
639 goto fail;
640 }
641
642 do {
643 status = gensec_update(auth_ntlmssp_state->gensec_security, auth_ntlmssp_state,
644 NULL, blob_in, &blob_out);
645 data_blob_free(&blob_in);
646 data_blob_free(&param_out);
647 if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) || NT_STATUS_IS_OK(status)) {
648 NTSTATUS trans_status = enc_blob_send_receive(cli,
649 &blob_out,
650 &blob_in,
651 &param_out);
652 if (!NT_STATUS_EQUAL(trans_status,
653 NT_STATUS_MORE_PROCESSING_REQUIRED) &&
654 !NT_STATUS_IS_OK(trans_status)) {
655 status = trans_status;
656 } else {
657 if (param_out.length == 2) {
658 es->enc_ctx_num = SVAL(param_out.data, 0);
659 }
660 }
661 }
662 data_blob_free(&blob_out);
663 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
664
665 data_blob_free(&blob_in);
666
667 if (NT_STATUS_IS_OK(status)) {
668 es->enc_on = true;
669 /* Replace the old state, if any. */
670 /* We only need the gensec_security part from here.
671 * es is a malloc()ed pointer, so we cannot make
672 * gensec_security a talloc child */
673 es->s.gensec_security = talloc_move(NULL,
674 &auth_ntlmssp_state->gensec_security);
675 smb1cli_conn_set_encryption(cli->conn, es);
676 es = NULL;
677 }
678
679 fail:
680 TALLOC_FREE(auth_ntlmssp_state);
681 common_free_encryption_state(&es);
682 return status;
683 }
684
685 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
686
687 #ifndef SMB_GSS_REQUIRED_FLAGS
688 #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)
689 #endif
690
691 /******************************************************************************
692 Get client gss blob to send to a server.
693 ******************************************************************************/
694
695 static NTSTATUS make_cli_gss_blob(TALLOC_CTX *ctx,
696 struct smb_trans_enc_state *es,
697 const char *service,
698 const char *host,
699 NTSTATUS status_in,
700 DATA_BLOB spnego_blob_in,
701 DATA_BLOB *p_blob_out)
702 {
703 const char *krb_mechs[] = {OID_KERBEROS5, NULL};
704 OM_uint32 ret;
705 OM_uint32 min;
706 gss_name_t srv_name;
707 gss_buffer_desc input_name;
708 gss_buffer_desc *p_tok_in;
709 gss_buffer_desc tok_out, tok_in;
710 DATA_BLOB blob_out = data_blob_null;
711 DATA_BLOB blob_in = data_blob_null;
712 char *host_princ_s = NULL;
713 OM_uint32 ret_flags = 0;
714 NTSTATUS status = NT_STATUS_OK;
715
716 gss_OID_desc nt_hostbased_service =
717 {10, discard_const_p(char, "\x2a\x86\x48\x86\xf7\x12\x01\x02\x01\x04")};
718
719 memset(&tok_out, '\0', sizeof(tok_out));
720
721 /* Get a ticket for the service@host */
722 if (asprintf(&host_princ_s, "%s@%s", service, host) == -1) {
723 return NT_STATUS_NO_MEMORY;
724 }
725
726 input_name.value = host_princ_s;
727 input_name.length = strlen(host_princ_s) + 1;
728
729 ret = gss_import_name(&min,
730 &input_name,
731 &nt_hostbased_service,
732 &srv_name);
733
734 if (ret != GSS_S_COMPLETE) {
735 SAFE_FREE(host_princ_s);
736 return map_nt_error_from_gss(ret, min);
737 }
738
739 if (spnego_blob_in.length == 0) {
740 p_tok_in = GSS_C_NO_BUFFER;
741 } else {
742 /* Remove the SPNEGO wrapper */
743 if (!spnego_parse_auth_response(ctx, spnego_blob_in, status_in, OID_KERBEROS5, &blob_in)) {
744 status = NT_STATUS_UNSUCCESSFUL;
745 goto fail;
746 }
747 tok_in.value = blob_in.data;
748 tok_in.length = blob_in.length;
749 p_tok_in = &tok_in;
750 }
751
752 ret = gss_init_sec_context(&min,
753 GSS_C_NO_CREDENTIAL, /* Use our default cred. */
754 &es->s.gss_state->gss_ctx,
755 srv_name,
756 GSS_C_NO_OID, /* default OID. */
757 GSS_C_MUTUAL_FLAG | GSS_C_REPLAY_FLAG | GSS_C_SEQUENCE_FLAG | GSS_C_DELEG_FLAG,
758 GSS_C_INDEFINITE, /* requested ticket lifetime. */
759 NULL, /* no channel bindings */
760 p_tok_in,
761 NULL, /* ignore mech type */
762 &tok_out,
763 &ret_flags,
764 NULL); /* ignore time_rec */
765
766 status = map_nt_error_from_gss(ret, min);
767 if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
768 ADS_STATUS adss = ADS_ERROR_GSS(ret, min);
769 DEBUG(10,("make_cli_gss_blob: gss_init_sec_context failed with %s\n",
770 ads_errstr(adss)));
771 goto fail;
772 }
773
774 if ((ret_flags & SMB_GSS_REQUIRED_FLAGS) != SMB_GSS_REQUIRED_FLAGS) {
775 status = NT_STATUS_ACCESS_DENIED;
776 }
777
778 blob_out = data_blob_talloc(ctx, tok_out.value, tok_out.length);
779
780 /* Wrap in an SPNEGO wrapper */
781 *p_blob_out = spnego_gen_negTokenInit(ctx, krb_mechs, &blob_out, NULL);
782
783 fail:
784
785 data_blob_free(&blob_out);
786 data_blob_free(&blob_in);
787 SAFE_FREE(host_princ_s);
788 gss_release_name(&min, &srv_name);
789 if (tok_out.value) {
790 gss_release_buffer(&min, &tok_out);
791 }
792 return status;
793 }
794
795 /******************************************************************************
796 Start a SPNEGO gssapi encryption context.
797 ******************************************************************************/
798
799 NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
800 {
801 DATA_BLOB blob_recv = data_blob_null;
802 DATA_BLOB blob_send = data_blob_null;
803 DATA_BLOB param_out = data_blob_null;
804 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
805 fstring fqdn;
806 const char *servicename;
807 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_GSS);
808
809 if (!es) {
810 return NT_STATUS_NO_MEMORY;
811 }
812
813 name_to_fqdn(fqdn, cli_state_remote_name(cli));
814 strlower_m(fqdn);
815
816 servicename = "cifs";
817 status = make_cli_gss_blob(talloc_tos(), es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
818 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
819 servicename = "host";
820 status = make_cli_gss_blob(talloc_tos(), es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
821 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
822 goto fail;
823 }
824 }
825
826 do {
827 data_blob_free(&blob_recv);
828 status = enc_blob_send_receive(cli, &blob_send, &blob_recv, &param_out);
829 if (param_out.length == 2) {
830 es->enc_ctx_num = SVAL(param_out.data, 0);
831 }
832 data_blob_free(&blob_send);
833 status = make_cli_gss_blob(talloc_tos(), es, servicename, fqdn, status, blob_recv, &blob_send);
834 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
835 data_blob_free(&blob_recv);
836
837 if (NT_STATUS_IS_OK(status)) {
838 es->enc_on = true;
839 /* Replace the old state, if any. */
840 smb1cli_conn_set_encryption(cli->conn, es);
841 es = NULL;
842 }
843
844 fail:
845
846 common_free_encryption_state(&es);
847 return status;
848 }
849 #else
850 NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
851 {
852 return NT_STATUS_NOT_SUPPORTED;
853 }
854 #endif
855
856 /********************************************************************
857 Ensure a connection is encrypted.
858 ********************************************************************/
859
860 NTSTATUS cli_force_encryption(struct cli_state *c,
861 const char *username,
862 const char *password,
863 const char *domain)
864 {
865 uint16 major, minor;
866 uint32 caplow, caphigh;
867 NTSTATUS status;
868
869 if (!SERVER_HAS_UNIX_CIFS(c)) {
870 return NT_STATUS_NOT_SUPPORTED;
871 }
872
873 status = cli_unix_extensions_version(c, &major, &minor, &caplow,
874 &caphigh);
875 if (!NT_STATUS_IS_OK(status)) {
876 DEBUG(10, ("cli_force_encryption: cli_unix_extensions_version "
877 "returned %s\n", nt_errstr(status)));
878 return NT_STATUS_UNKNOWN_REVISION;
879 }
880
881 if (!(caplow & CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP)) {
882 return NT_STATUS_UNSUPPORTED_COMPRESSION;
883 }
884
885 if (c->use_kerberos) {
886 return cli_gss_smb_encryption_start(c);
887 }
888 return cli_raw_ntlm_smb_encryption_start(c,
889 username,
890 password,
891 domain);
892 }
reg import