2 Unix SMB/CIFS implementation.
4 Copyright (C) Stefan (metze) Metzmacher 2003
5 Copyright (C) Jeremy Allison 2007
6 Copyright (C) Andrew Bartlett 2011
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.
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.
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/>.
23 #include "libsmb/libsmb.h"
24 #include "../lib/util/tevent_ntstatus.h"
25 #include "async_smb.h"
26 #include "../libcli/smb/smb_seal.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"
33 /****************************************************************************
34 Get UNIX extensions version info.
35 ****************************************************************************/
37 struct cli_unix_extensions_version_state
{
38 struct cli_state
*cli
;
41 uint16_t major
, minor
;
42 uint32_t caplow
, caphigh
;
45 static void cli_unix_extensions_version_done(struct tevent_req
*subreq
);
47 struct tevent_req
*cli_unix_extensions_version_send(TALLOC_CTX
*mem_ctx
,
48 struct tevent_context
*ev
,
49 struct cli_state
*cli
)
51 struct tevent_req
*req
, *subreq
;
52 struct cli_unix_extensions_version_state
*state
;
54 req
= tevent_req_create(mem_ctx
, &state
,
55 struct cli_unix_extensions_version_state
);
60 SSVAL(state
->setup
, 0, TRANSACT2_QFSINFO
);
61 SSVAL(state
->param
, 0, SMB_QUERY_CIFS_UNIX_INFO
);
63 subreq
= cli_trans_send(state
, ev
, cli
, SMBtrans2
,
68 if (tevent_req_nomem(subreq
, req
)) {
69 return tevent_req_post(req
, ev
);
71 tevent_req_set_callback(subreq
, cli_unix_extensions_version_done
, req
);
75 static void cli_unix_extensions_version_done(struct tevent_req
*subreq
)
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
);
85 status
= cli_trans_recv(subreq
, state
, NULL
, NULL
, 0, NULL
,
86 NULL
, 0, NULL
, &data
, 12, &num_data
);
88 if (!NT_STATUS_IS_OK(status
)) {
89 tevent_req_nterror(req
, status
);
93 state
->major
= SVAL(data
, 0);
94 state
->minor
= SVAL(data
, 2);
95 state
->caplow
= IVAL(data
, 4);
96 state
->caphigh
= IVAL(data
, 8);
101 NTSTATUS
cli_unix_extensions_version_recv(struct tevent_req
*req
,
102 uint16_t *pmajor
, uint16_t *pminor
,
106 struct cli_unix_extensions_version_state
*state
= tevent_req_data(
107 req
, struct cli_unix_extensions_version_state
);
110 if (tevent_req_is_nterror(req
, &status
)) {
113 *pmajor
= state
->major
;
114 *pminor
= state
->minor
;
115 *pcaplow
= state
->caplow
;
116 *pcaphigh
= state
->caphigh
;
117 state
->cli
->server_posix_capabilities
= *pcaplow
;
121 NTSTATUS
cli_unix_extensions_version(struct cli_state
*cli
, uint16_t *pmajor
,
122 uint16_t *pminor
, uint32_t *pcaplow
,
125 TALLOC_CTX
*frame
= talloc_stackframe();
126 struct tevent_context
*ev
;
127 struct tevent_req
*req
;
128 NTSTATUS status
= NT_STATUS_OK
;
130 if (smbXcli_conn_has_async_calls(cli
->conn
)) {
132 * Can't use sync call while an async call is in flight
134 status
= NT_STATUS_INVALID_PARAMETER
;
138 ev
= samba_tevent_context_init(frame
);
140 status
= NT_STATUS_NO_MEMORY
;
144 req
= cli_unix_extensions_version_send(frame
, ev
, cli
);
146 status
= NT_STATUS_NO_MEMORY
;
150 if (!tevent_req_poll_ntstatus(req
, ev
, &status
)) {
154 status
= cli_unix_extensions_version_recv(req
, pmajor
, pminor
, pcaplow
,
161 /****************************************************************************
162 Set UNIX extensions capabilities.
163 ****************************************************************************/
165 struct cli_set_unix_extensions_capabilities_state
{
166 struct cli_state
*cli
;
172 static void cli_set_unix_extensions_capabilities_done(
173 struct tevent_req
*subreq
);
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
)
179 struct tevent_req
*req
, *subreq
;
180 struct cli_set_unix_extensions_capabilities_state
*state
;
182 req
= tevent_req_create(
184 struct cli_set_unix_extensions_capabilities_state
);
190 SSVAL(state
->setup
+0, 0, TRANSACT2_SETFSINFO
);
192 SSVAL(state
->param
, 0, 0);
193 SSVAL(state
->param
, 2, SMB_SET_CIFS_UNIX_INFO
);
195 SSVAL(state
->data
, 0, major
);
196 SSVAL(state
->data
, 2, minor
);
197 SIVAL(state
->data
, 4, caplow
);
198 SIVAL(state
->data
, 8, caphigh
);
200 subreq
= cli_trans_send(state
, ev
, cli
, SMBtrans2
,
204 state
->data
, 12, 560);
205 if (tevent_req_nomem(subreq
, req
)) {
206 return tevent_req_post(req
, ev
);
208 tevent_req_set_callback(
209 subreq
, cli_set_unix_extensions_capabilities_done
, req
);
213 static void cli_set_unix_extensions_capabilities_done(
214 struct tevent_req
*subreq
)
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
);
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);
226 tevent_req_simple_finish_ntstatus(subreq
, status
);
229 NTSTATUS
cli_set_unix_extensions_capabilities_recv(struct tevent_req
*req
)
231 return tevent_req_simple_recv_ntstatus(req
);
234 NTSTATUS
cli_set_unix_extensions_capabilities(struct cli_state
*cli
,
235 uint16_t major
, uint16_t minor
,
236 uint32_t caplow
, uint32_t caphigh
)
238 struct tevent_context
*ev
;
239 struct tevent_req
*req
;
240 NTSTATUS status
= NT_STATUS_NO_MEMORY
;
242 if (smbXcli_conn_has_async_calls(cli
->conn
)) {
243 return NT_STATUS_INVALID_PARAMETER
;
245 ev
= samba_tevent_context_init(talloc_tos());
249 req
= cli_set_unix_extensions_capabilities_send(
250 ev
, ev
, cli
, major
, minor
, caplow
, caphigh
);
254 if (!tevent_req_poll_ntstatus(req
, ev
, &status
)) {
257 status
= cli_set_unix_extensions_capabilities_recv(req
);
263 struct cli_get_fs_attr_info_state
{
269 static void cli_get_fs_attr_info_done(struct tevent_req
*subreq
);
271 struct tevent_req
*cli_get_fs_attr_info_send(TALLOC_CTX
*mem_ctx
,
272 struct tevent_context
*ev
,
273 struct cli_state
*cli
)
275 struct tevent_req
*subreq
, *req
;
276 struct cli_get_fs_attr_info_state
*state
;
278 req
= tevent_req_create(mem_ctx
, &state
,
279 struct cli_get_fs_attr_info_state
);
283 SSVAL(state
->setup
+0, 0, TRANSACT2_QFSINFO
);
284 SSVAL(state
->param
+0, 0, SMB_QUERY_FS_ATTRIBUTE_INFO
);
286 subreq
= cli_trans_send(state
, ev
, cli
, SMBtrans2
,
291 if (tevent_req_nomem(subreq
, req
)) {
292 return tevent_req_post(req
, ev
);
294 tevent_req_set_callback(subreq
, cli_get_fs_attr_info_done
, req
);
298 static void cli_get_fs_attr_info_done(struct tevent_req
*subreq
)
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
);
308 status
= cli_trans_recv(subreq
, talloc_tos(), NULL
, NULL
, 0, NULL
,
309 NULL
, 0, NULL
, &data
, 12, &num_data
);
311 if (!NT_STATUS_IS_OK(status
)) {
312 tevent_req_nterror(req
, status
);
315 state
->fs_attr
= IVAL(data
, 0);
317 tevent_req_done(req
);
320 NTSTATUS
cli_get_fs_attr_info_recv(struct tevent_req
*req
, uint32_t *fs_attr
)
322 struct cli_get_fs_attr_info_state
*state
= tevent_req_data(
323 req
, struct cli_get_fs_attr_info_state
);
326 if (tevent_req_is_nterror(req
, &status
)) {
329 *fs_attr
= state
->fs_attr
;
333 NTSTATUS
cli_get_fs_attr_info(struct cli_state
*cli
, uint32_t *fs_attr
)
335 struct tevent_context
*ev
;
336 struct tevent_req
*req
;
337 NTSTATUS status
= NT_STATUS_NO_MEMORY
;
339 if (smbXcli_conn_has_async_calls(cli
->conn
)) {
340 return NT_STATUS_INVALID_PARAMETER
;
342 ev
= samba_tevent_context_init(talloc_tos());
346 req
= cli_get_fs_attr_info_send(ev
, ev
, cli
);
350 if (!tevent_req_poll_ntstatus(req
, ev
, &status
)) {
353 status
= cli_get_fs_attr_info_recv(req
, fs_attr
);
359 NTSTATUS
cli_get_fs_volume_info(struct cli_state
*cli
,
362 uint32_t *pserial_number
,
366 uint16_t recv_flags2
;
370 uint32_t rdata_count
;
372 char *volume_name
= NULL
;
374 SSVAL(setup
, 0, TRANSACT2_QFSINFO
);
375 SSVAL(param
,0,SMB_QUERY_FS_VOLUME_INFO
);
377 status
= cli_trans(talloc_tos(), cli
, SMBtrans2
,
385 &rdata
, 18, &rdata_count
);
386 if (!NT_STATUS_IS_OK(status
)) {
392 ts
= interpret_long_date((char *)rdata
);
395 if (pserial_number
) {
396 *pserial_number
= IVAL(rdata
,8);
398 nlen
= IVAL(rdata
,12);
399 if (nlen
> (rdata_count
- 18)) {
401 return NT_STATUS_INVALID_NETWORK_RESPONSE
;
404 clistr_pull_talloc(mem_ctx
,
410 if (volume_name
== NULL
) {
411 status
= map_nt_error_from_unix(errno
);
416 /* todo: but not yet needed
417 * return the other stuff
420 *_volume_name
= volume_name
;
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
)
434 uint8_t *rdata
= NULL
;
435 uint32_t rdata_count
;
438 SSVAL(setup
, 0, TRANSACT2_QFSINFO
);
439 SSVAL(param
, 0, SMB_FS_FULL_SIZE_INFORMATION
);
441 status
= cli_trans(talloc_tos(), cli
, SMBtrans2
,
443 setup
, 1, 0, /* setup */
444 param
, 2, 0, /* param */
445 NULL
, 0, 560, /* data */
447 NULL
, 0, NULL
, /* rsetup */
448 NULL
, 0, NULL
, /* rparam */
449 &rdata
, 32, &rdata_count
); /* rdata */
450 if (!NT_STATUS_IS_OK(status
)) {
454 if (total_allocation_units
) {
455 *total_allocation_units
= BIG_UINT(rdata
, 0);
457 if (caller_allocation_units
) {
458 *caller_allocation_units
= BIG_UINT(rdata
,8);
460 if (actual_allocation_units
) {
461 *actual_allocation_units
= BIG_UINT(rdata
,16);
463 if (sectors_per_allocation_unit
) {
464 *sectors_per_allocation_unit
= IVAL(rdata
,24);
466 if (bytes_per_sector
) {
467 *bytes_per_sector
= IVAL(rdata
,28);
475 NTSTATUS
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
)
487 uint8_t *rdata
= NULL
;
488 uint32_t rdata_count
;
491 SSVAL(setup
, 0, TRANSACT2_QFSINFO
);
492 SSVAL(param
,0,SMB_QUERY_POSIX_FS_INFO
);
494 status
= cli_trans(talloc_tos(), cli
, SMBtrans2
, NULL
, 0, 0, 0,
499 NULL
, 0, NULL
, /* rsetup */
500 NULL
, 0, NULL
, /* rparam */
501 &rdata
, 56, &rdata_count
);
502 if (!NT_STATUS_IS_OK(status
)) {
506 if (optimal_transfer_size
) {
507 *optimal_transfer_size
= IVAL(rdata
, 0);
510 *block_size
= IVAL(rdata
,4);
513 *total_blocks
= BIG_UINT(rdata
,8);
515 if (blocks_available
) {
516 *blocks_available
= BIG_UINT(rdata
,16);
518 if (user_blocks_available
) {
519 *user_blocks_available
= BIG_UINT(rdata
,24);
521 if (total_file_nodes
) {
522 *total_file_nodes
= BIG_UINT(rdata
,32);
524 if (free_file_nodes
) {
525 *free_file_nodes
= BIG_UINT(rdata
,40);
528 *fs_identifier
= BIG_UINT(rdata
,48);
534 /******************************************************************************
535 Send/receive the request encryption blob.
536 ******************************************************************************/
538 static NTSTATUS
enc_blob_send_receive(struct cli_state
*cli
, DATA_BLOB
*in
, DATA_BLOB
*out
, DATA_BLOB
*param_out
)
542 uint8_t *rparam
=NULL
, *rdata
=NULL
;
543 uint32_t num_rparam
, num_rdata
;
546 SSVAL(setup
+0, 0, TRANSACT2_SETFSINFO
);
548 SSVAL(param
,2,SMB_REQUEST_TRANSPORT_ENCRYPTION
);
550 status
= cli_trans(talloc_tos(), cli
, SMBtrans2
, NULL
, 0, 0, 0,
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
);
559 if (!NT_STATUS_IS_OK(status
) &&
560 !NT_STATUS_EQUAL(status
, NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
564 *out
= data_blob(rdata
, num_rdata
);
565 *param_out
= data_blob(rparam
, num_rparam
);
572 /******************************************************************************
573 Start a raw ntlmssp encryption.
574 ******************************************************************************/
576 NTSTATUS
cli_raw_ntlm_smb_encryption_start(struct cli_state
*cli
,
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
);
588 return NT_STATUS_NO_MEMORY
;
590 status
= auth_generic_client_prepare(es
,
591 &auth_generic_state
);
592 if (!NT_STATUS_IS_OK(status
)) {
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
);
599 if (!NT_STATUS_IS_OK(status
= auth_generic_set_username(auth_generic_state
, user
))) {
602 if (!NT_STATUS_IS_OK(status
= auth_generic_set_domain(auth_generic_state
, domain
))) {
605 if (!NT_STATUS_IS_OK(status
= auth_generic_set_password(auth_generic_state
, pass
))) {
609 if (!NT_STATUS_IS_OK(status
= auth_generic_client_start(auth_generic_state
, GENSEC_OID_NTLMSSP
))) {
614 status
= gensec_update(auth_generic_state
->gensec_security
, auth_generic_state
,
616 data_blob_free(&blob_in
);
617 data_blob_free(¶m_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
,
623 if (!NT_STATUS_EQUAL(trans_status
,
624 NT_STATUS_MORE_PROCESSING_REQUIRED
) &&
625 !NT_STATUS_IS_OK(trans_status
)) {
626 status
= trans_status
;
628 if (param_out
.length
== 2) {
629 es
->enc_ctx_num
= SVAL(param_out
.data
, 0);
633 data_blob_free(&blob_out
);
634 } while (NT_STATUS_EQUAL(status
, NT_STATUS_MORE_PROCESSING_REQUIRED
));
636 data_blob_free(&blob_in
);
638 if (NT_STATUS_IS_OK(status
)) {
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
);
655 /******************************************************************************
656 Start a SPNEGO gssapi encryption context.
657 ******************************************************************************/
659 NTSTATUS
cli_gss_smb_encryption_start(struct cli_state
*cli
)
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
);
669 return NT_STATUS_NO_MEMORY
;
672 status
= auth_generic_client_prepare(es
,
673 &auth_generic_state
);
674 if (!NT_STATUS_IS_OK(status
)) {
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
);
681 cli_credentials_set_kerberos_state(auth_generic_state
->credentials
,
682 CRED_MUST_USE_KERBEROS
);
684 status
= gensec_set_target_service(auth_generic_state
->gensec_security
, "cifs");
685 if (!NT_STATUS_IS_OK(status
)) {
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
)) {
695 if (!NT_STATUS_IS_OK(status
= auth_generic_client_start(auth_generic_state
, GENSEC_OID_SPNEGO
))) {
699 status
= gensec_update(auth_generic_state
->gensec_security
, talloc_tos(),
700 blob_recv
, &blob_send
);
703 data_blob_free(&blob_recv
);
704 status
= enc_blob_send_receive(cli
, &blob_send
, &blob_recv
, ¶m_out
);
705 if (param_out
.length
== 2) {
706 es
->enc_ctx_num
= SVAL(param_out
.data
, 0);
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
);
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
;
723 if (NT_STATUS_IS_OK(status
)) {
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
);
739 /********************************************************************
740 Ensure a connection is encrypted.
741 ********************************************************************/
743 NTSTATUS
cli_force_encryption(struct cli_state
*c
,
744 const char *username
,
745 const char *password
,
748 uint16_t major
, minor
;
749 uint32_t caplow
, caphigh
;
752 if (!SERVER_HAS_UNIX_CIFS(c
)) {
753 return NT_STATUS_NOT_SUPPORTED
;
756 status
= cli_unix_extensions_version(c
, &major
, &minor
, &caplow
,
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
;
764 if (!(caplow
& CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP
)) {
765 return NT_STATUS_UNSUPPORTED_COMPRESSION
;
768 if (c
->use_kerberos
) {
769 return cli_gss_smb_encryption_start(c
);
771 return cli_raw_ntlm_smb_encryption_start(c
,