2 Unix SMB/CIFS implementation.
4 Copyright (C) Stefan (metze) Metzmacher 2003
5 Copyright (C) Jeremy Allison 2007
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.
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.
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/>.
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"
29 #include "ntlmssp_wrap.h"
30 #include "auth/gensec/gensec.h"
32 /****************************************************************************
33 Get UNIX extensions version info.
34 ****************************************************************************/
36 struct cli_unix_extensions_version_state
{
37 struct cli_state
*cli
;
40 uint16_t major
, minor
;
41 uint32_t caplow
, caphigh
;
44 static void cli_unix_extensions_version_done(struct tevent_req
*subreq
);
46 struct tevent_req
*cli_unix_extensions_version_send(TALLOC_CTX
*mem_ctx
,
47 struct tevent_context
*ev
,
48 struct cli_state
*cli
)
50 struct tevent_req
*req
, *subreq
;
51 struct cli_unix_extensions_version_state
*state
;
53 req
= tevent_req_create(mem_ctx
, &state
,
54 struct cli_unix_extensions_version_state
);
59 SSVAL(state
->setup
, 0, TRANSACT2_QFSINFO
);
60 SSVAL(state
->param
, 0, SMB_QUERY_CIFS_UNIX_INFO
);
62 subreq
= cli_trans_send(state
, ev
, cli
, SMBtrans2
,
67 if (tevent_req_nomem(subreq
, req
)) {
68 return tevent_req_post(req
, ev
);
70 tevent_req_set_callback(subreq
, cli_unix_extensions_version_done
, req
);
74 static void cli_unix_extensions_version_done(struct tevent_req
*subreq
)
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
);
84 status
= cli_trans_recv(subreq
, state
, NULL
, NULL
, 0, NULL
,
85 NULL
, 0, NULL
, &data
, 12, &num_data
);
87 if (!NT_STATUS_IS_OK(status
)) {
88 tevent_req_nterror(req
, status
);
92 state
->major
= SVAL(data
, 0);
93 state
->minor
= SVAL(data
, 2);
94 state
->caplow
= IVAL(data
, 4);
95 state
->caphigh
= IVAL(data
, 8);
100 NTSTATUS
cli_unix_extensions_version_recv(struct tevent_req
*req
,
101 uint16_t *pmajor
, uint16_t *pminor
,
105 struct cli_unix_extensions_version_state
*state
= tevent_req_data(
106 req
, struct cli_unix_extensions_version_state
);
109 if (tevent_req_is_nterror(req
, &status
)) {
112 *pmajor
= state
->major
;
113 *pminor
= state
->minor
;
114 *pcaplow
= state
->caplow
;
115 *pcaphigh
= state
->caphigh
;
116 state
->cli
->server_posix_capabilities
= *pcaplow
;
120 NTSTATUS
cli_unix_extensions_version(struct cli_state
*cli
, uint16
*pmajor
,
121 uint16
*pminor
, uint32
*pcaplow
,
124 TALLOC_CTX
*frame
= talloc_stackframe();
125 struct event_context
*ev
;
126 struct tevent_req
*req
;
127 NTSTATUS status
= NT_STATUS_OK
;
129 if (cli_has_async_calls(cli
)) {
131 * Can't use sync call while an async call is in flight
133 status
= NT_STATUS_INVALID_PARAMETER
;
137 ev
= event_context_init(frame
);
139 status
= NT_STATUS_NO_MEMORY
;
143 req
= cli_unix_extensions_version_send(frame
, ev
, cli
);
145 status
= NT_STATUS_NO_MEMORY
;
149 if (!tevent_req_poll(req
, ev
)) {
150 status
= map_nt_error_from_unix(errno
);
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 major
, uint16 minor
,
236 uint32 caplow
, uint32 caphigh
)
238 struct tevent_context
*ev
;
239 struct tevent_req
*req
;
240 NTSTATUS status
= NT_STATUS_NO_MEMORY
;
242 if (cli_has_async_calls(cli
)) {
243 return NT_STATUS_INVALID_PARAMETER
;
245 ev
= 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 (cli_has_async_calls(cli
)) {
340 return NT_STATUS_INVALID_PARAMETER
;
342 ev
= 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
*optimal_transfer_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 Make a client state struct.
574 ******************************************************************************/
576 static struct smb_trans_enc_state
*make_cli_enc_state(enum smb_trans_enc_type smb_enc_type
)
578 struct smb_trans_enc_state
*es
= NULL
;
579 es
= SMB_MALLOC_P(struct smb_trans_enc_state
);
584 es
->smb_enc_type
= smb_enc_type
;
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
) {
593 ZERO_STRUCTP(es
->s
.gss_state
);
599 /******************************************************************************
600 Start a raw ntlmssp encryption.
601 ******************************************************************************/
603 NTSTATUS
cli_raw_ntlm_smb_encryption_start(struct cli_state
*cli
,
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
);
616 return NT_STATUS_NO_MEMORY
;
618 status
= auth_ntlmssp_client_prepare(NULL
,
619 &auth_ntlmssp_state
);
620 if (!NT_STATUS_IS_OK(status
)) {
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
);
627 if (!NT_STATUS_IS_OK(status
= auth_ntlmssp_set_username(auth_ntlmssp_state
, user
))) {
630 if (!NT_STATUS_IS_OK(status
= auth_ntlmssp_set_domain(auth_ntlmssp_state
, domain
))) {
633 if (!NT_STATUS_IS_OK(status
= auth_ntlmssp_set_password(auth_ntlmssp_state
, pass
))) {
637 if (!NT_STATUS_IS_OK(status
= auth_ntlmssp_client_start(auth_ntlmssp_state
))) {
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(¶m_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
,
651 if (!NT_STATUS_EQUAL(trans_status
,
652 NT_STATUS_MORE_PROCESSING_REQUIRED
) &&
653 !NT_STATUS_IS_OK(trans_status
)) {
654 status
= trans_status
;
656 if (param_out
.length
== 2) {
657 es
->enc_ctx_num
= SVAL(param_out
.data
, 0);
661 data_blob_free(&blob_out
);
662 } while (NT_STATUS_EQUAL(status
, NT_STATUS_MORE_PROCESSING_REQUIRED
));
664 data_blob_free(&blob_in
);
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
);
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
;
682 TALLOC_FREE(auth_ntlmssp_state
);
683 common_free_encryption_state(&es
);
687 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
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)
693 /******************************************************************************
694 Get client gss blob to send to a server.
695 ******************************************************************************/
697 static NTSTATUS
make_cli_gss_blob(TALLOC_CTX
*ctx
,
698 struct smb_trans_enc_state
*es
,
702 DATA_BLOB spnego_blob_in
,
703 DATA_BLOB
*p_blob_out
)
705 const char *krb_mechs
[] = {OID_KERBEROS5
, NULL
};
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
;
718 gss_OID_desc nt_hostbased_service
=
719 {10, discard_const_p(char, "\x2a\x86\x48\x86\xf7\x12\x01\x02\x01\x04")};
721 memset(&tok_out
, '\0', sizeof(tok_out
));
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
;
728 input_name
.value
= host_princ_s
;
729 input_name
.length
= strlen(host_princ_s
) + 1;
731 ret
= gss_import_name(&min
,
733 &nt_hostbased_service
,
736 if (ret
!= GSS_S_COMPLETE
) {
737 SAFE_FREE(host_princ_s
);
738 return map_nt_error_from_gss(ret
, min
);
741 if (spnego_blob_in
.length
== 0) {
742 p_tok_in
= GSS_C_NO_BUFFER
;
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
;
749 tok_in
.value
= blob_in
.data
;
750 tok_in
.length
= blob_in
.length
;
754 ret
= gss_init_sec_context(&min
,
755 GSS_C_NO_CREDENTIAL
, /* Use our default cred. */
756 &es
->s
.gss_state
->gss_ctx
,
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 */
763 NULL
, /* ignore mech type */
766 NULL
); /* ignore time_rec */
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",
776 if ((ret_flags
& SMB_GSS_REQUIRED_FLAGS
) != SMB_GSS_REQUIRED_FLAGS
) {
777 status
= NT_STATUS_ACCESS_DENIED
;
780 blob_out
= data_blob_talloc(ctx
, tok_out
.value
, tok_out
.length
);
782 /* Wrap in an SPNEGO wrapper */
783 *p_blob_out
= spnego_gen_negTokenInit(ctx
, krb_mechs
, &blob_out
, NULL
);
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
);
792 gss_release_buffer(&min
, &tok_out
);
797 /******************************************************************************
798 Start a SPNEGO gssapi encryption context.
799 ******************************************************************************/
801 NTSTATUS
cli_gss_smb_encryption_start(struct cli_state
*cli
)
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
;
808 const char *servicename
;
809 struct smb_trans_enc_state
*es
= make_cli_enc_state(SMB_TRANS_ENC_GSS
);
812 return NT_STATUS_NO_MEMORY
;
815 name_to_fqdn(fqdn
, cli_state_remote_name(cli
));
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
)) {
829 data_blob_free(&blob_recv
);
830 status
= enc_blob_send_receive(cli
, &blob_send
, &blob_recv
, ¶m_out
);
831 if (param_out
.length
== 2) {
832 es
->enc_ctx_num
= SVAL(param_out
.data
, 0);
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
);
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
);
844 cli
->trans_enc_state
= es
;
845 cli
->trans_enc_state
->enc_on
= True
;
851 common_free_encryption_state(&es
);
855 NTSTATUS
cli_gss_smb_encryption_start(struct cli_state
*cli
)
857 return NT_STATUS_NOT_SUPPORTED
;
861 /********************************************************************
862 Ensure a connection is encrypted.
863 ********************************************************************/
865 NTSTATUS
cli_force_encryption(struct cli_state
*c
,
866 const char *username
,
867 const char *password
,
871 uint32 caplow
, caphigh
;
874 if (!SERVER_HAS_UNIX_CIFS(c
)) {
875 return NT_STATUS_NOT_SUPPORTED
;
878 status
= cli_unix_extensions_version(c
, &major
, &minor
, &caplow
,
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
;
886 if (!(caplow
& CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP
)) {
887 return NT_STATUS_UNSUPPORTED_COMPRESSION
;
890 if (c
->use_kerberos
) {
891 return cli_gss_smb_encryption_start(c
);
893 return cli_raw_ntlm_smb_encryption_start(c
,