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/>.
23 /****************************************************************************
24 Get UNIX extensions version info.
25 ****************************************************************************/
27 bool cli_unix_extensions_version(struct cli_state
*cli
, uint16
*pmajor
, uint16
*pminor
,
28 uint32
*pcaplow
, uint32
*pcaphigh
)
33 char *rparam
=NULL
, *rdata
=NULL
;
34 unsigned int rparam_count
=0, rdata_count
=0;
36 setup
= TRANSACT2_QFSINFO
;
38 SSVAL(param
,0,SMB_QUERY_CIFS_UNIX_INFO
);
40 if (!cli_send_trans(cli
, SMBtrans2
,
49 if (!cli_receive_trans(cli
, SMBtrans2
,
50 &rparam
, &rparam_count
,
51 &rdata
, &rdata_count
)) {
55 if (cli_is_error(cli
)) {
62 if (rdata_count
< 12) {
66 *pmajor
= SVAL(rdata
,0);
67 *pminor
= SVAL(rdata
,2);
68 cli
->posix_capabilities
= *pcaplow
= IVAL(rdata
,4);
69 *pcaphigh
= IVAL(rdata
,8);
71 /* todo: but not yet needed
72 * return the other stuff
82 /****************************************************************************
83 Set UNIX extensions capabilities.
84 ****************************************************************************/
86 bool cli_set_unix_extensions_capabilities(struct cli_state
*cli
, uint16 major
, uint16 minor
,
87 uint32 caplow
, uint32 caphigh
)
93 char *rparam
=NULL
, *rdata
=NULL
;
94 unsigned int rparam_count
=0, rdata_count
=0;
96 setup
= TRANSACT2_SETFSINFO
;
99 SSVAL(param
,2,SMB_SET_CIFS_UNIX_INFO
);
103 SIVAL(data
,4,caplow
);
104 SIVAL(data
,8,caphigh
);
106 if (!cli_send_trans(cli
, SMBtrans2
,
115 if (!cli_receive_trans(cli
, SMBtrans2
,
116 &rparam
, &rparam_count
,
117 &rdata
, &rdata_count
)) {
121 if (cli_is_error(cli
)) {
135 bool cli_get_fs_attr_info(struct cli_state
*cli
, uint32
*fs_attr
)
140 char *rparam
=NULL
, *rdata
=NULL
;
141 unsigned int rparam_count
=0, rdata_count
=0;
144 smb_panic("cli_get_fs_attr_info() called with NULL Pionter!");
146 setup
= TRANSACT2_QFSINFO
;
148 SSVAL(param
,0,SMB_QUERY_FS_ATTRIBUTE_INFO
);
150 if (!cli_send_trans(cli
, SMBtrans2
,
159 if (!cli_receive_trans(cli
, SMBtrans2
,
160 &rparam
, &rparam_count
,
161 &rdata
, &rdata_count
)) {
165 if (cli_is_error(cli
)) {
172 if (rdata_count
< 12) {
176 *fs_attr
= IVAL(rdata
,0);
178 /* todo: but not yet needed
179 * return the other stuff
189 bool cli_get_fs_volume_info_old(struct cli_state
*cli
, fstring volume_name
, uint32
*pserial_number
)
194 char *rparam
=NULL
, *rdata
=NULL
;
195 unsigned int rparam_count
=0, rdata_count
=0;
198 setup
= TRANSACT2_QFSINFO
;
200 SSVAL(param
,0,SMB_INFO_VOLUME
);
202 if (!cli_send_trans(cli
, SMBtrans2
,
211 if (!cli_receive_trans(cli
, SMBtrans2
,
212 &rparam
, &rparam_count
,
213 &rdata
, &rdata_count
)) {
217 if (cli_is_error(cli
)) {
224 if (rdata_count
< 5) {
228 if (pserial_number
) {
229 *pserial_number
= IVAL(rdata
,0);
231 nlen
= CVAL(rdata
,l2_vol_cch
);
232 clistr_pull(cli
->inbuf
, volume_name
, rdata
+ l2_vol_szVolLabel
,
233 sizeof(fstring
), nlen
, STR_NOALIGN
);
235 /* todo: but not yet needed
236 * return the other stuff
246 bool cli_get_fs_volume_info(struct cli_state
*cli
, fstring volume_name
, uint32
*pserial_number
, time_t *pdate
)
251 char *rparam
=NULL
, *rdata
=NULL
;
252 unsigned int rparam_count
=0, rdata_count
=0;
255 setup
= TRANSACT2_QFSINFO
;
257 SSVAL(param
,0,SMB_QUERY_FS_VOLUME_INFO
);
259 if (!cli_send_trans(cli
, SMBtrans2
,
268 if (!cli_receive_trans(cli
, SMBtrans2
,
269 &rparam
, &rparam_count
,
270 &rdata
, &rdata_count
)) {
274 if (cli_is_error(cli
)) {
281 if (rdata_count
< 19) {
287 ts
= interpret_long_date(rdata
);
290 if (pserial_number
) {
291 *pserial_number
= IVAL(rdata
,8);
293 nlen
= IVAL(rdata
,12);
294 clistr_pull(cli
->inbuf
, volume_name
, rdata
+ 18, sizeof(fstring
),
297 /* todo: but not yet needed
298 * return the other stuff
308 bool cli_get_fs_full_size_info(struct cli_state
*cli
,
309 uint64_t *total_allocation_units
,
310 uint64_t *caller_allocation_units
,
311 uint64_t *actual_allocation_units
,
312 uint64_t *sectors_per_allocation_unit
,
313 uint64_t *bytes_per_sector
)
318 char *rparam
=NULL
, *rdata
=NULL
;
319 unsigned int rparam_count
=0, rdata_count
=0;
321 setup
= TRANSACT2_QFSINFO
;
323 SSVAL(param
,0,SMB_FS_FULL_SIZE_INFORMATION
);
325 if (!cli_send_trans(cli
, SMBtrans2
,
334 if (!cli_receive_trans(cli
, SMBtrans2
,
335 &rparam
, &rparam_count
,
336 &rdata
, &rdata_count
)) {
340 if (cli_is_error(cli
)) {
347 if (rdata_count
!= 32) {
351 if (total_allocation_units
) {
352 *total_allocation_units
= BIG_UINT(rdata
, 0);
354 if (caller_allocation_units
) {
355 *caller_allocation_units
= BIG_UINT(rdata
,8);
357 if (actual_allocation_units
) {
358 *actual_allocation_units
= BIG_UINT(rdata
,16);
360 if (sectors_per_allocation_unit
) {
361 *sectors_per_allocation_unit
= IVAL(rdata
,24);
363 if (bytes_per_sector
) {
364 *bytes_per_sector
= IVAL(rdata
,28);
374 bool cli_get_posix_fs_info(struct cli_state
*cli
,
375 uint32
*optimal_transfer_size
,
377 uint64_t *total_blocks
,
378 uint64_t *blocks_available
,
379 uint64_t *user_blocks_available
,
380 uint64_t *total_file_nodes
,
381 uint64_t *free_file_nodes
,
382 uint64_t *fs_identifier
)
387 char *rparam
=NULL
, *rdata
=NULL
;
388 unsigned int rparam_count
=0, rdata_count
=0;
390 setup
= TRANSACT2_QFSINFO
;
392 SSVAL(param
,0,SMB_QUERY_POSIX_FS_INFO
);
394 if (!cli_send_trans(cli
, SMBtrans2
,
403 if (!cli_receive_trans(cli
, SMBtrans2
,
404 &rparam
, &rparam_count
,
405 &rdata
, &rdata_count
)) {
409 if (cli_is_error(cli
)) {
416 if (rdata_count
!= 56) {
420 if (optimal_transfer_size
) {
421 *optimal_transfer_size
= IVAL(rdata
, 0);
424 *block_size
= IVAL(rdata
,4);
427 *total_blocks
= BIG_UINT(rdata
,8);
429 if (blocks_available
) {
430 *blocks_available
= BIG_UINT(rdata
,16);
432 if (user_blocks_available
) {
433 *user_blocks_available
= BIG_UINT(rdata
,24);
435 if (total_file_nodes
) {
436 *total_file_nodes
= BIG_UINT(rdata
,32);
438 if (free_file_nodes
) {
439 *free_file_nodes
= BIG_UINT(rdata
,40);
442 *fs_identifier
= BIG_UINT(rdata
,48);
453 /******************************************************************************
454 Send/receive the request encryption blob.
455 ******************************************************************************/
457 static NTSTATUS
enc_blob_send_receive(struct cli_state
*cli
, DATA_BLOB
*in
, DATA_BLOB
*out
, DATA_BLOB
*param_out
)
461 char *rparam
=NULL
, *rdata
=NULL
;
462 unsigned int rparam_count
=0, rdata_count
=0;
463 NTSTATUS status
= NT_STATUS_OK
;
465 setup
= TRANSACT2_SETFSINFO
;
468 SSVAL(param
,2,SMB_REQUEST_TRANSPORT_ENCRYPTION
);
470 if (!cli_send_trans(cli
, SMBtrans2
,
475 (char *)in
->data
, in
->length
, CLI_BUFFER_SIZE
)) {
476 status
= cli_nt_error(cli
);
480 if (!cli_receive_trans(cli
, SMBtrans2
,
481 &rparam
, &rparam_count
,
482 &rdata
, &rdata_count
)) {
483 status
= cli_nt_error(cli
);
487 if (cli_is_error(cli
)) {
488 status
= cli_nt_error(cli
);
489 if (!NT_STATUS_EQUAL(status
, NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
494 *out
= data_blob(rdata
, rdata_count
);
495 *param_out
= data_blob(rparam
, rparam_count
);
504 /******************************************************************************
505 Make a client state struct.
506 ******************************************************************************/
508 static struct smb_trans_enc_state
*make_cli_enc_state(enum smb_trans_enc_type smb_enc_type
)
510 struct smb_trans_enc_state
*es
= NULL
;
511 es
= SMB_MALLOC_P(struct smb_trans_enc_state
);
516 es
->smb_enc_type
= smb_enc_type
;
518 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
519 if (smb_enc_type
== SMB_TRANS_ENC_GSS
) {
520 es
->s
.gss_state
= SMB_MALLOC_P(struct smb_tran_enc_state_gss
);
521 if (!es
->s
.gss_state
) {
525 ZERO_STRUCTP(es
->s
.gss_state
);
531 /******************************************************************************
532 Start a raw ntlmssp encryption.
533 ******************************************************************************/
535 NTSTATUS
cli_raw_ntlm_smb_encryption_start(struct cli_state
*cli
,
540 DATA_BLOB blob_in
= data_blob_null
;
541 DATA_BLOB blob_out
= data_blob_null
;
542 DATA_BLOB param_out
= data_blob_null
;
543 NTSTATUS status
= NT_STATUS_UNSUCCESSFUL
;
544 struct smb_trans_enc_state
*es
= make_cli_enc_state(SMB_TRANS_ENC_NTLM
);
547 return NT_STATUS_NO_MEMORY
;
549 status
= ntlmssp_client_start(&es
->s
.ntlmssp_state
);
550 if (!NT_STATUS_IS_OK(status
)) {
554 ntlmssp_want_feature(es
->s
.ntlmssp_state
, NTLMSSP_FEATURE_SESSION_KEY
);
555 es
->s
.ntlmssp_state
->neg_flags
|= (NTLMSSP_NEGOTIATE_SIGN
|NTLMSSP_NEGOTIATE_SEAL
);
557 if (!NT_STATUS_IS_OK(status
= ntlmssp_set_username(es
->s
.ntlmssp_state
, user
))) {
560 if (!NT_STATUS_IS_OK(status
= ntlmssp_set_domain(es
->s
.ntlmssp_state
, domain
))) {
563 if (!NT_STATUS_IS_OK(status
= ntlmssp_set_password(es
->s
.ntlmssp_state
, pass
))) {
568 status
= ntlmssp_update(es
->s
.ntlmssp_state
, blob_in
, &blob_out
);
569 data_blob_free(&blob_in
);
570 data_blob_free(¶m_out
);
571 if (NT_STATUS_EQUAL(status
, NT_STATUS_MORE_PROCESSING_REQUIRED
) || NT_STATUS_IS_OK(status
)) {
572 NTSTATUS trans_status
= enc_blob_send_receive(cli
,
576 if (!NT_STATUS_EQUAL(trans_status
,
577 NT_STATUS_MORE_PROCESSING_REQUIRED
) &&
578 !NT_STATUS_IS_OK(trans_status
)) {
579 status
= trans_status
;
581 if (param_out
.length
== 2) {
582 es
->enc_ctx_num
= SVAL(param_out
.data
, 0);
586 data_blob_free(&blob_out
);
587 } while (NT_STATUS_EQUAL(status
, NT_STATUS_MORE_PROCESSING_REQUIRED
));
589 data_blob_free(&blob_in
);
591 if (NT_STATUS_IS_OK(status
)) {
592 /* Replace the old state, if any. */
593 if (cli
->trans_enc_state
) {
594 common_free_encryption_state(&cli
->trans_enc_state
);
596 cli
->trans_enc_state
= es
;
597 cli
->trans_enc_state
->enc_on
= True
;
603 common_free_encryption_state(&es
);
607 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
609 #ifndef SMB_GSS_REQUIRED_FLAGS
610 #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)
613 /******************************************************************************
614 Get client gss blob to send to a server.
615 ******************************************************************************/
617 static NTSTATUS
make_cli_gss_blob(struct smb_trans_enc_state
*es
,
621 DATA_BLOB spnego_blob_in
,
622 DATA_BLOB
*p_blob_out
)
624 const char *krb_mechs
[] = {OID_KERBEROS5
, NULL
};
628 gss_buffer_desc input_name
;
629 gss_buffer_desc
*p_tok_in
;
630 gss_buffer_desc tok_out
, tok_in
;
631 DATA_BLOB blob_out
= data_blob_null
;
632 DATA_BLOB blob_in
= data_blob_null
;
633 char *host_princ_s
= NULL
;
634 OM_uint32 ret_flags
= 0;
635 NTSTATUS status
= NT_STATUS_OK
;
637 gss_OID_desc nt_hostbased_service
=
638 {10, CONST_DISCARD(char *,"\x2a\x86\x48\x86\xf7\x12\x01\x02\x01\x04")};
640 memset(&tok_out
, '\0', sizeof(tok_out
));
642 /* Get a ticket for the service@host */
643 if (asprintf(&host_princ_s
, "%s@%s", service
, host
) == -1) {
644 return NT_STATUS_NO_MEMORY
;
647 input_name
.value
= host_princ_s
;
648 input_name
.length
= strlen(host_princ_s
) + 1;
650 ret
= gss_import_name(&min
,
652 &nt_hostbased_service
,
655 if (ret
!= GSS_S_COMPLETE
) {
656 SAFE_FREE(host_princ_s
);
657 return map_nt_error_from_gss(ret
, min
);
660 if (spnego_blob_in
.length
== 0) {
661 p_tok_in
= GSS_C_NO_BUFFER
;
663 /* Remove the SPNEGO wrapper */
664 if (!spnego_parse_auth_response(spnego_blob_in
, status_in
, OID_KERBEROS5
, &blob_in
)) {
665 status
= NT_STATUS_UNSUCCESSFUL
;
668 tok_in
.value
= blob_in
.data
;
669 tok_in
.length
= blob_in
.length
;
673 ret
= gss_init_sec_context(&min
,
674 GSS_C_NO_CREDENTIAL
, /* Use our default cred. */
675 &es
->s
.gss_state
->gss_ctx
,
677 GSS_C_NO_OID
, /* default OID. */
678 GSS_C_MUTUAL_FLAG
| GSS_C_REPLAY_FLAG
| GSS_C_SEQUENCE_FLAG
| GSS_C_DELEG_FLAG
,
679 GSS_C_INDEFINITE
, /* requested ticket lifetime. */
680 NULL
, /* no channel bindings */
682 NULL
, /* ignore mech type */
685 NULL
); /* ignore time_rec */
687 status
= map_nt_error_from_gss(ret
, min
);
688 if (!NT_STATUS_IS_OK(status
) && !NT_STATUS_EQUAL(status
,NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
689 ADS_STATUS adss
= ADS_ERROR_GSS(ret
, min
);
690 DEBUG(10,("make_cli_gss_blob: gss_init_sec_context failed with %s\n",
695 if ((ret_flags
& SMB_GSS_REQUIRED_FLAGS
) != SMB_GSS_REQUIRED_FLAGS
) {
696 status
= NT_STATUS_ACCESS_DENIED
;
699 blob_out
= data_blob(tok_out
.value
, tok_out
.length
);
701 /* Wrap in an SPNEGO wrapper */
702 *p_blob_out
= gen_negTokenTarg(krb_mechs
, blob_out
);
706 data_blob_free(&blob_out
);
707 data_blob_free(&blob_in
);
708 SAFE_FREE(host_princ_s
);
709 gss_release_name(&min
, &srv_name
);
711 gss_release_buffer(&min
, &tok_out
);
716 /******************************************************************************
717 Start a SPNEGO gssapi encryption context.
718 ******************************************************************************/
720 NTSTATUS
cli_gss_smb_encryption_start(struct cli_state
*cli
)
722 DATA_BLOB blob_recv
= data_blob_null
;
723 DATA_BLOB blob_send
= data_blob_null
;
724 DATA_BLOB param_out
= data_blob_null
;
725 NTSTATUS status
= NT_STATUS_UNSUCCESSFUL
;
727 const char *servicename
;
728 struct smb_trans_enc_state
*es
= make_cli_enc_state(SMB_TRANS_ENC_GSS
);
731 return NT_STATUS_NO_MEMORY
;
734 name_to_fqdn(fqdn
, cli
->desthost
);
737 servicename
= "cifs";
738 status
= make_cli_gss_blob(es
, servicename
, fqdn
, NT_STATUS_OK
, blob_recv
, &blob_send
);
739 if (!NT_STATUS_EQUAL(status
,NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
740 servicename
= "host";
741 status
= make_cli_gss_blob(es
, servicename
, fqdn
, NT_STATUS_OK
, blob_recv
, &blob_send
);
742 if (!NT_STATUS_EQUAL(status
,NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
748 data_blob_free(&blob_recv
);
749 status
= enc_blob_send_receive(cli
, &blob_send
, &blob_recv
, ¶m_out
);
750 if (param_out
.length
== 2) {
751 es
->enc_ctx_num
= SVAL(param_out
.data
, 0);
753 data_blob_free(&blob_send
);
754 status
= make_cli_gss_blob(es
, servicename
, fqdn
, status
, blob_recv
, &blob_send
);
755 } while (NT_STATUS_EQUAL(status
, NT_STATUS_MORE_PROCESSING_REQUIRED
));
756 data_blob_free(&blob_recv
);
758 if (NT_STATUS_IS_OK(status
)) {
759 /* Replace the old state, if any. */
760 if (cli
->trans_enc_state
) {
761 common_free_encryption_state(&cli
->trans_enc_state
);
763 cli
->trans_enc_state
= es
;
764 cli
->trans_enc_state
->enc_on
= True
;
770 common_free_encryption_state(&es
);
774 NTSTATUS
cli_gss_smb_encryption_start(struct cli_state
*cli
)
776 return NT_STATUS_NOT_SUPPORTED
;
780 /********************************************************************
781 Ensure a connection is encrypted.
782 ********************************************************************/
784 NTSTATUS
cli_force_encryption(struct cli_state
*c
,
785 const char *username
,
786 const char *password
,
790 uint32 caplow
, caphigh
;
792 if (!SERVER_HAS_UNIX_CIFS(c
)) {
793 return NT_STATUS_NOT_SUPPORTED
;
796 if (!cli_unix_extensions_version(c
, &major
, &minor
, &caplow
, &caphigh
)) {
797 return NT_STATUS_UNKNOWN_REVISION
;
800 if (!(caplow
& CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP
)) {
801 return NT_STATUS_UNSUPPORTED_COMPRESSION
;
804 if (c
->use_kerberos
) {
805 return cli_gss_smb_encryption_start(c
);
807 return cli_raw_ntlm_smb_encryption_start(c
,