source: branches/samba-3.5.x/source3/libsmb/clifsinfo.c@ 1075

Last change on this file since 1075 was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 21.5 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
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 "../libcli/auth/spnego.h"
23
24/****************************************************************************
25 Get UNIX extensions version info.
26****************************************************************************/
27
28struct cli_unix_extensions_version_state {
29 uint16_t setup[1];
30 uint8_t param[2];
31 uint16_t major, minor;
32 uint32_t caplow, caphigh;
33};
34
35static void cli_unix_extensions_version_done(struct tevent_req *subreq);
36
37struct tevent_req *cli_unix_extensions_version_send(TALLOC_CTX *mem_ctx,
38 struct tevent_context *ev,
39 struct cli_state *cli)
40{
41 struct tevent_req *req, *subreq;
42 struct cli_unix_extensions_version_state *state;
43
44 req = tevent_req_create(mem_ctx, &state,
45 struct cli_unix_extensions_version_state);
46 if (req == NULL) {
47 return NULL;
48 }
49 SSVAL(state->setup, 0, TRANSACT2_QFSINFO);
50 SSVAL(state->param, 0, SMB_QUERY_CIFS_UNIX_INFO);
51
52 subreq = cli_trans_send(state, ev, cli, SMBtrans2,
53 NULL, 0, 0, 0,
54 state->setup, 1, 0,
55 state->param, 2, 0,
56 NULL, 0, 560);
57 if (tevent_req_nomem(subreq, req)) {
58 return tevent_req_post(req, ev);
59 }
60 tevent_req_set_callback(subreq, cli_unix_extensions_version_done, req);
61 return req;
62}
63
64static void cli_unix_extensions_version_done(struct tevent_req *subreq)
65{
66 struct tevent_req *req = tevent_req_callback_data(
67 subreq, struct tevent_req);
68 struct cli_unix_extensions_version_state *state = tevent_req_data(
69 req, struct cli_unix_extensions_version_state);
70 uint8_t *data;
71 uint32_t num_data;
72 NTSTATUS status;
73
74 status = cli_trans_recv(subreq, state, NULL, NULL, NULL, NULL,
75 &data, &num_data);
76 TALLOC_FREE(subreq);
77 if (!NT_STATUS_IS_OK(status)) {
78 tevent_req_nterror(req, status);
79 return;
80 }
81 if (num_data < 12) {
82 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
83 return;
84 }
85
86 state->major = SVAL(data, 0);
87 state->minor = SVAL(data, 2);
88 state->caplow = IVAL(data, 4);
89 state->caphigh = IVAL(data, 8);
90 TALLOC_FREE(data);
91 tevent_req_done(req);
92}
93
94NTSTATUS cli_unix_extensions_version_recv(struct tevent_req *req,
95 uint16_t *pmajor, uint16_t *pminor,
96 uint32_t *pcaplow,
97 uint32_t *pcaphigh)
98{
99 struct cli_unix_extensions_version_state *state = tevent_req_data(
100 req, struct cli_unix_extensions_version_state);
101 NTSTATUS status;
102
103 if (tevent_req_is_nterror(req, &status)) {
104 return status;
105 }
106 *pmajor = state->major;
107 *pminor = state->minor;
108 *pcaplow = state->caplow;
109 *pcaphigh = state->caphigh;
110 return NT_STATUS_OK;
111}
112
113NTSTATUS cli_unix_extensions_version(struct cli_state *cli, uint16 *pmajor,
114 uint16 *pminor, uint32 *pcaplow,
115 uint32 *pcaphigh)
116{
117 TALLOC_CTX *frame = talloc_stackframe();
118 struct event_context *ev;
119 struct tevent_req *req;
120 NTSTATUS status = NT_STATUS_OK;
121
122 if (cli_has_async_calls(cli)) {
123 /*
124 * Can't use sync call while an async call is in flight
125 */
126 status = NT_STATUS_INVALID_PARAMETER;
127 goto fail;
128 }
129
130 ev = event_context_init(frame);
131 if (ev == NULL) {
132 status = NT_STATUS_NO_MEMORY;
133 goto fail;
134 }
135
136 req = cli_unix_extensions_version_send(frame, ev, cli);
137 if (req == NULL) {
138 status = NT_STATUS_NO_MEMORY;
139 goto fail;
140 }
141
142 if (!tevent_req_poll(req, ev)) {
143 status = map_nt_error_from_unix(errno);
144 goto fail;
145 }
146
147 status = cli_unix_extensions_version_recv(req, pmajor, pminor, pcaplow,
148 pcaphigh);
149 if (NT_STATUS_IS_OK(status)) {
150 cli->posix_capabilities = *pcaplow;
151 }
152 fail:
153 TALLOC_FREE(frame);
154 if (!NT_STATUS_IS_OK(status)) {
155 cli_set_error(cli, status);
156 }
157 return status;
158}
159
160/****************************************************************************
161 Set UNIX extensions capabilities.
162****************************************************************************/
163
164bool cli_set_unix_extensions_capabilities(struct cli_state *cli, uint16 major, uint16 minor,
165 uint32 caplow, uint32 caphigh)
166{
167 bool ret = False;
168 uint16 setup;
169 char param[4];
170 char data[12];
171 char *rparam=NULL, *rdata=NULL;
172 unsigned int rparam_count=0, rdata_count=0;
173
174 setup = TRANSACT2_SETFSINFO;
175
176 SSVAL(param,0,0);
177 SSVAL(param,2,SMB_SET_CIFS_UNIX_INFO);
178
179 SSVAL(data,0,major);
180 SSVAL(data,2,minor);
181 SIVAL(data,4,caplow);
182 SIVAL(data,8,caphigh);
183
184 if (!cli_send_trans(cli, SMBtrans2,
185 NULL,
186 0, 0,
187 &setup, 1, 0,
188 param, 4, 0,
189 data, 12, 560)) {
190 goto cleanup;
191 }
192
193 if (!cli_receive_trans(cli, SMBtrans2,
194 &rparam, &rparam_count,
195 &rdata, &rdata_count)) {
196 goto cleanup;
197 }
198
199 if (cli_is_error(cli)) {
200 ret = False;
201 goto cleanup;
202 } else {
203 ret = True;
204 }
205
206cleanup:
207 SAFE_FREE(rparam);
208 SAFE_FREE(rdata);
209
210 return ret;
211}
212
213bool cli_get_fs_attr_info(struct cli_state *cli, uint32 *fs_attr)
214{
215 bool ret = False;
216 uint16 setup;
217 char param[2];
218 char *rparam=NULL, *rdata=NULL;
219 unsigned int rparam_count=0, rdata_count=0;
220
221 if (!cli||!fs_attr)
222 smb_panic("cli_get_fs_attr_info() called with NULL Pionter!");
223
224 setup = TRANSACT2_QFSINFO;
225
226 SSVAL(param,0,SMB_QUERY_FS_ATTRIBUTE_INFO);
227
228 if (!cli_send_trans(cli, SMBtrans2,
229 NULL,
230 0, 0,
231 &setup, 1, 0,
232 param, 2, 0,
233 NULL, 0, 560)) {
234 goto cleanup;
235 }
236
237 if (!cli_receive_trans(cli, SMBtrans2,
238 &rparam, &rparam_count,
239 &rdata, &rdata_count)) {
240 goto cleanup;
241 }
242
243 if (cli_is_error(cli)) {
244 ret = False;
245 goto cleanup;
246 } else {
247 ret = True;
248 }
249
250 if (rdata_count < 12) {
251 goto cleanup;
252 }
253
254 *fs_attr = IVAL(rdata,0);
255
256 /* todo: but not yet needed
257 * return the other stuff
258 */
259
260cleanup:
261 SAFE_FREE(rparam);
262 SAFE_FREE(rdata);
263
264 return ret;
265}
266
267bool cli_get_fs_volume_info_old(struct cli_state *cli, fstring volume_name, uint32 *pserial_number)
268{
269 bool ret = False;
270 uint16 setup;
271 char param[2];
272 char *rparam=NULL, *rdata=NULL;
273 unsigned int rparam_count=0, rdata_count=0;
274 unsigned char nlen;
275
276 setup = TRANSACT2_QFSINFO;
277
278 SSVAL(param,0,SMB_INFO_VOLUME);
279
280 if (!cli_send_trans(cli, SMBtrans2,
281 NULL,
282 0, 0,
283 &setup, 1, 0,
284 param, 2, 0,
285 NULL, 0, 560)) {
286 goto cleanup;
287 }
288
289 if (!cli_receive_trans(cli, SMBtrans2,
290 &rparam, &rparam_count,
291 &rdata, &rdata_count)) {
292 goto cleanup;
293 }
294
295 if (cli_is_error(cli)) {
296 ret = False;
297 goto cleanup;
298 } else {
299 ret = True;
300 }
301
302 if (rdata_count < 5) {
303 goto cleanup;
304 }
305
306 if (pserial_number) {
307 *pserial_number = IVAL(rdata,0);
308 }
309 nlen = CVAL(rdata,l2_vol_cch);
310 clistr_pull(cli->inbuf, volume_name, rdata + l2_vol_szVolLabel,
311 sizeof(fstring), nlen, STR_NOALIGN);
312
313 /* todo: but not yet needed
314 * return the other stuff
315 */
316
317cleanup:
318 SAFE_FREE(rparam);
319 SAFE_FREE(rdata);
320
321 return ret;
322}
323
324bool cli_get_fs_volume_info(struct cli_state *cli, fstring volume_name, uint32 *pserial_number, time_t *pdate)
325{
326 bool ret = False;
327 uint16 setup;
328 char param[2];
329 char *rparam=NULL, *rdata=NULL;
330 unsigned int rparam_count=0, rdata_count=0;
331 unsigned int nlen;
332
333 setup = TRANSACT2_QFSINFO;
334
335 SSVAL(param,0,SMB_QUERY_FS_VOLUME_INFO);
336
337 if (!cli_send_trans(cli, SMBtrans2,
338 NULL,
339 0, 0,
340 &setup, 1, 0,
341 param, 2, 0,
342 NULL, 0, 560)) {
343 goto cleanup;
344 }
345
346 if (!cli_receive_trans(cli, SMBtrans2,
347 &rparam, &rparam_count,
348 &rdata, &rdata_count)) {
349 goto cleanup;
350 }
351
352 if (cli_is_error(cli)) {
353 ret = False;
354 goto cleanup;
355 } else {
356 ret = True;
357 }
358
359 if (rdata_count < 19) {
360 goto cleanup;
361 }
362
363 if (pdate) {
364 struct timespec ts;
365 ts = interpret_long_date(rdata);
366 *pdate = ts.tv_sec;
367 }
368 if (pserial_number) {
369 *pserial_number = IVAL(rdata,8);
370 }
371 nlen = IVAL(rdata,12);
372 clistr_pull(cli->inbuf, volume_name, rdata + 18, sizeof(fstring),
373 nlen, STR_UNICODE);
374
375 /* todo: but not yet needed
376 * return the other stuff
377 */
378
379cleanup:
380 SAFE_FREE(rparam);
381 SAFE_FREE(rdata);
382
383 return ret;
384}
385
386bool cli_get_fs_full_size_info(struct cli_state *cli,
387 uint64_t *total_allocation_units,
388 uint64_t *caller_allocation_units,
389 uint64_t *actual_allocation_units,
390 uint64_t *sectors_per_allocation_unit,
391 uint64_t *bytes_per_sector)
392{
393 bool ret = False;
394 uint16 setup;
395 char param[2];
396 char *rparam=NULL, *rdata=NULL;
397 unsigned int rparam_count=0, rdata_count=0;
398
399 setup = TRANSACT2_QFSINFO;
400
401 SSVAL(param,0,SMB_FS_FULL_SIZE_INFORMATION);
402
403 if (!cli_send_trans(cli, SMBtrans2,
404 NULL,
405 0, 0,
406 &setup, 1, 0,
407 param, 2, 0,
408 NULL, 0, 560)) {
409 goto cleanup;
410 }
411
412 if (!cli_receive_trans(cli, SMBtrans2,
413 &rparam, &rparam_count,
414 &rdata, &rdata_count)) {
415 goto cleanup;
416 }
417
418 if (cli_is_error(cli)) {
419 ret = False;
420 goto cleanup;
421 } else {
422 ret = True;
423 }
424
425 if (rdata_count != 32) {
426 goto cleanup;
427 }
428
429 if (total_allocation_units) {
430 *total_allocation_units = BIG_UINT(rdata, 0);
431 }
432 if (caller_allocation_units) {
433 *caller_allocation_units = BIG_UINT(rdata,8);
434 }
435 if (actual_allocation_units) {
436 *actual_allocation_units = BIG_UINT(rdata,16);
437 }
438 if (sectors_per_allocation_unit) {
439 *sectors_per_allocation_unit = IVAL(rdata,24);
440 }
441 if (bytes_per_sector) {
442 *bytes_per_sector = IVAL(rdata,28);
443 }
444
445cleanup:
446 SAFE_FREE(rparam);
447 SAFE_FREE(rdata);
448
449 return ret;
450}
451
452bool cli_get_posix_fs_info(struct cli_state *cli,
453 uint32 *optimal_transfer_size,
454 uint32 *block_size,
455 uint64_t *total_blocks,
456 uint64_t *blocks_available,
457 uint64_t *user_blocks_available,
458 uint64_t *total_file_nodes,
459 uint64_t *free_file_nodes,
460 uint64_t *fs_identifier)
461{
462 bool ret = False;
463 uint16 setup;
464 char param[2];
465 char *rparam=NULL, *rdata=NULL;
466 unsigned int rparam_count=0, rdata_count=0;
467
468 setup = TRANSACT2_QFSINFO;
469
470 SSVAL(param,0,SMB_QUERY_POSIX_FS_INFO);
471
472 if (!cli_send_trans(cli, SMBtrans2,
473 NULL,
474 0, 0,
475 &setup, 1, 0,
476 param, 2, 0,
477 NULL, 0, 560)) {
478 goto cleanup;
479 }
480
481 if (!cli_receive_trans(cli, SMBtrans2,
482 &rparam, &rparam_count,
483 &rdata, &rdata_count)) {
484 goto cleanup;
485 }
486
487 if (cli_is_error(cli)) {
488 ret = False;
489 goto cleanup;
490 } else {
491 ret = True;
492 }
493
494 if (rdata_count != 56) {
495 goto cleanup;
496 }
497
498 if (optimal_transfer_size) {
499 *optimal_transfer_size = IVAL(rdata, 0);
500 }
501 if (block_size) {
502 *block_size = IVAL(rdata,4);
503 }
504 if (total_blocks) {
505 *total_blocks = BIG_UINT(rdata,8);
506 }
507 if (blocks_available) {
508 *blocks_available = BIG_UINT(rdata,16);
509 }
510 if (user_blocks_available) {
511 *user_blocks_available = BIG_UINT(rdata,24);
512 }
513 if (total_file_nodes) {
514 *total_file_nodes = BIG_UINT(rdata,32);
515 }
516 if (free_file_nodes) {
517 *free_file_nodes = BIG_UINT(rdata,40);
518 }
519 if (fs_identifier) {
520 *fs_identifier = BIG_UINT(rdata,48);
521 }
522
523cleanup:
524 SAFE_FREE(rparam);
525 SAFE_FREE(rdata);
526
527 return ret;
528}
529
530
531/******************************************************************************
532 Send/receive the request encryption blob.
533******************************************************************************/
534
535static NTSTATUS enc_blob_send_receive(struct cli_state *cli, DATA_BLOB *in, DATA_BLOB *out, DATA_BLOB *param_out)
536{
537 uint16 setup;
538 char param[4];
539 char *rparam=NULL, *rdata=NULL;
540 unsigned int rparam_count=0, rdata_count=0;
541 NTSTATUS status = NT_STATUS_OK;
542
543 setup = TRANSACT2_SETFSINFO;
544
545 SSVAL(param,0,0);
546 SSVAL(param,2,SMB_REQUEST_TRANSPORT_ENCRYPTION);
547
548 if (!cli_send_trans(cli, SMBtrans2,
549 NULL,
550 0, 0,
551 &setup, 1, 0,
552 param, 4, 0,
553 (char *)in->data, in->length, CLI_BUFFER_SIZE)) {
554 status = cli_nt_error(cli);
555 goto out;
556 }
557
558 if (!cli_receive_trans(cli, SMBtrans2,
559 &rparam, &rparam_count,
560 &rdata, &rdata_count)) {
561 status = cli_nt_error(cli);
562 goto out;
563 }
564
565 if (cli_is_error(cli)) {
566 status = cli_nt_error(cli);
567 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
568 goto out;
569 }
570 }
571
572 *out = data_blob(rdata, rdata_count);
573 *param_out = data_blob(rparam, rparam_count);
574
575 out:
576
577 SAFE_FREE(rparam);
578 SAFE_FREE(rdata);
579 return status;
580}
581
582/******************************************************************************
583 Make a client state struct.
584******************************************************************************/
585
586static struct smb_trans_enc_state *make_cli_enc_state(enum smb_trans_enc_type smb_enc_type)
587{
588 struct smb_trans_enc_state *es = NULL;
589 es = SMB_MALLOC_P(struct smb_trans_enc_state);
590 if (!es) {
591 return NULL;
592 }
593 ZERO_STRUCTP(es);
594 es->smb_enc_type = smb_enc_type;
595
596#if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
597 if (smb_enc_type == SMB_TRANS_ENC_GSS) {
598 es->s.gss_state = SMB_MALLOC_P(struct smb_tran_enc_state_gss);
599 if (!es->s.gss_state) {
600 SAFE_FREE(es);
601 return NULL;
602 }
603 ZERO_STRUCTP(es->s.gss_state);
604 }
605#endif
606 return es;
607}
608
609/******************************************************************************
610 Start a raw ntlmssp encryption.
611******************************************************************************/
612
613NTSTATUS cli_raw_ntlm_smb_encryption_start(struct cli_state *cli,
614 const char *user,
615 const char *pass,
616 const char *domain)
617{
618 DATA_BLOB blob_in = data_blob_null;
619 DATA_BLOB blob_out = data_blob_null;
620 DATA_BLOB param_out = data_blob_null;
621 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
622 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_NTLM);
623
624 if (!es) {
625 return NT_STATUS_NO_MEMORY;
626 }
627 status = ntlmssp_client_start(&es->s.ntlmssp_state);
628 if (!NT_STATUS_IS_OK(status)) {
629 goto fail;
630 }
631
632 ntlmssp_want_feature(es->s.ntlmssp_state, NTLMSSP_FEATURE_SESSION_KEY);
633 es->s.ntlmssp_state->neg_flags |= (NTLMSSP_NEGOTIATE_SIGN|NTLMSSP_NEGOTIATE_SEAL);
634
635 if (!NT_STATUS_IS_OK(status = ntlmssp_set_username(es->s.ntlmssp_state, user))) {
636 goto fail;
637 }
638 if (!NT_STATUS_IS_OK(status = ntlmssp_set_domain(es->s.ntlmssp_state, domain))) {
639 goto fail;
640 }
641 if (!NT_STATUS_IS_OK(status = ntlmssp_set_password(es->s.ntlmssp_state, pass))) {
642 goto fail;
643 }
644
645 do {
646 status = ntlmssp_update(es->s.ntlmssp_state, blob_in, &blob_out);
647 data_blob_free(&blob_in);
648 data_blob_free(&param_out);
649 if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) || NT_STATUS_IS_OK(status)) {
650 NTSTATUS trans_status = enc_blob_send_receive(cli,
651 &blob_out,
652 &blob_in,
653 &param_out);
654 if (!NT_STATUS_EQUAL(trans_status,
655 NT_STATUS_MORE_PROCESSING_REQUIRED) &&
656 !NT_STATUS_IS_OK(trans_status)) {
657 status = trans_status;
658 } else {
659 if (param_out.length == 2) {
660 es->enc_ctx_num = SVAL(param_out.data, 0);
661 }
662 }
663 }
664 data_blob_free(&blob_out);
665 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
666
667 data_blob_free(&blob_in);
668
669 if (NT_STATUS_IS_OK(status)) {
670 /* Replace the old state, if any. */
671 if (cli->trans_enc_state) {
672 common_free_encryption_state(&cli->trans_enc_state);
673 }
674 cli->trans_enc_state = es;
675 cli->trans_enc_state->enc_on = True;
676 es = NULL;
677 }
678
679 fail:
680
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
695static NTSTATUS make_cli_gss_blob(struct smb_trans_enc_state *es,
696 const char *service,
697 const char *host,
698 NTSTATUS status_in,
699 DATA_BLOB spnego_blob_in,
700 DATA_BLOB *p_blob_out)
701{
702 const char *krb_mechs[] = {OID_KERBEROS5, NULL};
703 OM_uint32 ret;
704 OM_uint32 min;
705 gss_name_t srv_name;
706 gss_buffer_desc input_name;
707 gss_buffer_desc *p_tok_in;
708 gss_buffer_desc tok_out, tok_in;
709 DATA_BLOB blob_out = data_blob_null;
710 DATA_BLOB blob_in = data_blob_null;
711 char *host_princ_s = NULL;
712 OM_uint32 ret_flags = 0;
713 NTSTATUS status = NT_STATUS_OK;
714
715 gss_OID_desc nt_hostbased_service =
716 {10, CONST_DISCARD(char *,"\x2a\x86\x48\x86\xf7\x12\x01\x02\x01\x04")};
717
718 memset(&tok_out, '\0', sizeof(tok_out));
719
720 /* Get a ticket for the service@host */
721 if (asprintf(&host_princ_s, "%s@%s", service, host) == -1) {
722 return NT_STATUS_NO_MEMORY;
723 }
724
725 input_name.value = host_princ_s;
726 input_name.length = strlen(host_princ_s) + 1;
727
728 ret = gss_import_name(&min,
729 &input_name,
730 &nt_hostbased_service,
731 &srv_name);
732
733 if (ret != GSS_S_COMPLETE) {
734 SAFE_FREE(host_princ_s);
735 return map_nt_error_from_gss(ret, min);
736 }
737
738 if (spnego_blob_in.length == 0) {
739 p_tok_in = GSS_C_NO_BUFFER;
740 } else {
741 /* Remove the SPNEGO wrapper */
742 if (!spnego_parse_auth_response(spnego_blob_in, status_in, OID_KERBEROS5, &blob_in)) {
743 status = NT_STATUS_UNSUCCESSFUL;
744 goto fail;
745 }
746 tok_in.value = blob_in.data;
747 tok_in.length = blob_in.length;
748 p_tok_in = &tok_in;
749 }
750
751 ret = gss_init_sec_context(&min,
752 GSS_C_NO_CREDENTIAL, /* Use our default cred. */
753 &es->s.gss_state->gss_ctx,
754 srv_name,
755 GSS_C_NO_OID, /* default OID. */
756 GSS_C_MUTUAL_FLAG | GSS_C_REPLAY_FLAG | GSS_C_SEQUENCE_FLAG | GSS_C_DELEG_FLAG,
757 GSS_C_INDEFINITE, /* requested ticket lifetime. */
758 NULL, /* no channel bindings */
759 p_tok_in,
760 NULL, /* ignore mech type */
761 &tok_out,
762 &ret_flags,
763 NULL); /* ignore time_rec */
764
765 status = map_nt_error_from_gss(ret, min);
766 if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
767 ADS_STATUS adss = ADS_ERROR_GSS(ret, min);
768 DEBUG(10,("make_cli_gss_blob: gss_init_sec_context failed with %s\n",
769 ads_errstr(adss)));
770 goto fail;
771 }
772
773 if ((ret_flags & SMB_GSS_REQUIRED_FLAGS) != SMB_GSS_REQUIRED_FLAGS) {
774 status = NT_STATUS_ACCESS_DENIED;
775 }
776
777 blob_out = data_blob(tok_out.value, tok_out.length);
778
779 /* Wrap in an SPNEGO wrapper */
780 *p_blob_out = gen_negTokenTarg(krb_mechs, blob_out);
781
782 fail:
783
784 data_blob_free(&blob_out);
785 data_blob_free(&blob_in);
786 SAFE_FREE(host_princ_s);
787 gss_release_name(&min, &srv_name);
788 if (tok_out.value) {
789 gss_release_buffer(&min, &tok_out);
790 }
791 return status;
792}
793
794/******************************************************************************
795 Start a SPNEGO gssapi encryption context.
796******************************************************************************/
797
798NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
799{
800 DATA_BLOB blob_recv = data_blob_null;
801 DATA_BLOB blob_send = data_blob_null;
802 DATA_BLOB param_out = data_blob_null;
803 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
804 fstring fqdn;
805 const char *servicename;
806 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_GSS);
807
808 if (!es) {
809 return NT_STATUS_NO_MEMORY;
810 }
811
812 name_to_fqdn(fqdn, cli->desthost);
813 strlower_m(fqdn);
814
815 servicename = "cifs";
816 status = make_cli_gss_blob(es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
817 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
818 servicename = "host";
819 status = make_cli_gss_blob(es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
820 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
821 goto fail;
822 }
823 }
824
825 do {
826 data_blob_free(&blob_recv);
827 status = enc_blob_send_receive(cli, &blob_send, &blob_recv, &param_out);
828 if (param_out.length == 2) {
829 es->enc_ctx_num = SVAL(param_out.data, 0);
830 }
831 data_blob_free(&blob_send);
832 status = make_cli_gss_blob(es, servicename, fqdn, status, blob_recv, &blob_send);
833 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
834 data_blob_free(&blob_recv);
835
836 if (NT_STATUS_IS_OK(status)) {
837 /* Replace the old state, if any. */
838 if (cli->trans_enc_state) {
839 common_free_encryption_state(&cli->trans_enc_state);
840 }
841 cli->trans_enc_state = es;
842 cli->trans_enc_state->enc_on = True;
843 es = NULL;
844 }
845
846 fail:
847
848 common_free_encryption_state(&es);
849 return status;
850}
851#else
852NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
853{
854 return NT_STATUS_NOT_SUPPORTED;
855}
856#endif
857
858/********************************************************************
859 Ensure a connection is encrypted.
860********************************************************************/
861
862NTSTATUS cli_force_encryption(struct cli_state *c,
863 const char *username,
864 const char *password,
865 const char *domain)
866{
867 uint16 major, minor;
868 uint32 caplow, caphigh;
869 NTSTATUS status;
870
871 if (!SERVER_HAS_UNIX_CIFS(c)) {
872 return NT_STATUS_NOT_SUPPORTED;
873 }
874
875 status = cli_unix_extensions_version(c, &major, &minor, &caplow,
876 &caphigh);
877 if (!NT_STATUS_IS_OK(status)) {
878 DEBUG(10, ("cli_force_encryption: cli_unix_extensions_version "
879 "returned %s\n", nt_errstr(status)));
880 return NT_STATUS_UNKNOWN_REVISION;
881 }
882
883 if (!(caplow & CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP)) {
884 return NT_STATUS_UNSUPPORTED_COMPRESSION;
885 }
886
887 if (c->use_kerberos) {
888 return cli_gss_smb_encryption_start(c);
889 }
890 return cli_raw_ntlm_smb_encryption_start(c,
891 username,
892 password,
893 domain);
894}
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