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
, volume_name
, rdata
+ l2_vol_szVolLabel
, sizeof(fstring
), nlen
, STR_NOALIGN
);
234 /* todo: but not yet needed
235 * return the other stuff
245 BOOL
cli_get_fs_volume_info(struct cli_state
*cli
, fstring volume_name
, uint32
*pserial_number
, time_t *pdate
)
250 char *rparam
=NULL
, *rdata
=NULL
;
251 unsigned int rparam_count
=0, rdata_count
=0;
254 setup
= TRANSACT2_QFSINFO
;
256 SSVAL(param
,0,SMB_QUERY_FS_VOLUME_INFO
);
258 if (!cli_send_trans(cli
, SMBtrans2
,
267 if (!cli_receive_trans(cli
, SMBtrans2
,
268 &rparam
, &rparam_count
,
269 &rdata
, &rdata_count
)) {
273 if (cli_is_error(cli
)) {
280 if (rdata_count
< 19) {
286 ts
= interpret_long_date(rdata
);
289 if (pserial_number
) {
290 *pserial_number
= IVAL(rdata
,8);
292 nlen
= IVAL(rdata
,12);
293 clistr_pull(cli
, volume_name
, rdata
+ 18, sizeof(fstring
), nlen
, STR_UNICODE
);
295 /* todo: but not yet needed
296 * return the other stuff
306 /******************************************************************************
307 Send/receive the request encryption blob.
308 ******************************************************************************/
310 static NTSTATUS
enc_blob_send_receive(struct cli_state
*cli
, DATA_BLOB
*in
, DATA_BLOB
*out
, DATA_BLOB
*param_out
)
314 char *rparam
=NULL
, *rdata
=NULL
;
315 unsigned int rparam_count
=0, rdata_count
=0;
316 NTSTATUS status
= NT_STATUS_OK
;
318 setup
= TRANSACT2_SETFSINFO
;
321 SSVAL(param
,2,SMB_REQUEST_TRANSPORT_ENCRYPTION
);
323 if (!cli_send_trans(cli
, SMBtrans2
,
328 (char *)in
->data
, in
->length
, CLI_BUFFER_SIZE
)) {
329 status
= cli_nt_error(cli
);
333 if (!cli_receive_trans(cli
, SMBtrans2
,
334 &rparam
, &rparam_count
,
335 &rdata
, &rdata_count
)) {
336 status
= cli_nt_error(cli
);
340 if (cli_is_error(cli
)) {
341 status
= cli_nt_error(cli
);
342 if (!NT_STATUS_EQUAL(status
, NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
347 *out
= data_blob(rdata
, rdata_count
);
348 *param_out
= data_blob(rparam
, rparam_count
);
357 /******************************************************************************
358 Make a client state struct.
359 ******************************************************************************/
361 static struct smb_trans_enc_state
*make_cli_enc_state(enum smb_trans_enc_type smb_enc_type
)
363 struct smb_trans_enc_state
*es
= NULL
;
364 es
= SMB_MALLOC_P(struct smb_trans_enc_state
);
369 es
->smb_enc_type
= smb_enc_type
;
371 if (smb_enc_type
== SMB_TRANS_ENC_GSS
) {
372 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
373 es
->s
.gss_state
= SMB_MALLOC_P(struct smb_tran_enc_state_gss
);
374 if (!es
->s
.gss_state
) {
378 ZERO_STRUCTP(es
->s
.gss_state
);
380 DEBUG(0,("make_cli_enc_state: no krb5 compiled.\n"));
388 /******************************************************************************
389 Start a raw ntlmssp encryption.
390 ******************************************************************************/
392 NTSTATUS
cli_raw_ntlm_smb_encryption_start(struct cli_state
*cli
,
397 DATA_BLOB blob_in
= data_blob_null
;
398 DATA_BLOB blob_out
= data_blob_null
;
399 DATA_BLOB param_out
= data_blob_null
;
400 NTSTATUS status
= NT_STATUS_UNSUCCESSFUL
;
401 struct smb_trans_enc_state
*es
= make_cli_enc_state(SMB_TRANS_ENC_NTLM
);
404 return NT_STATUS_NO_MEMORY
;
406 status
= ntlmssp_client_start(&es
->s
.ntlmssp_state
);
407 if (!NT_STATUS_IS_OK(status
)) {
411 ntlmssp_want_feature(es
->s
.ntlmssp_state
, NTLMSSP_FEATURE_SESSION_KEY
);
412 es
->s
.ntlmssp_state
->neg_flags
|= (NTLMSSP_NEGOTIATE_SIGN
|NTLMSSP_NEGOTIATE_SEAL
);
414 if (!NT_STATUS_IS_OK(status
= ntlmssp_set_username(es
->s
.ntlmssp_state
, user
))) {
417 if (!NT_STATUS_IS_OK(status
= ntlmssp_set_domain(es
->s
.ntlmssp_state
, domain
))) {
420 if (!NT_STATUS_IS_OK(status
= ntlmssp_set_password(es
->s
.ntlmssp_state
, pass
))) {
425 status
= ntlmssp_update(es
->s
.ntlmssp_state
, blob_in
, &blob_out
);
426 data_blob_free(&blob_in
);
427 data_blob_free(¶m_out
);
428 if (NT_STATUS_EQUAL(status
, NT_STATUS_MORE_PROCESSING_REQUIRED
) || NT_STATUS_IS_OK(status
)) {
429 status
= enc_blob_send_receive(cli
, &blob_out
, &blob_in
, ¶m_out
);
431 if (param_out
.length
== 2) {
432 es
->enc_ctx_num
= SVAL(param_out
.data
, 0);
434 data_blob_free(&blob_out
);
435 } while (NT_STATUS_EQUAL(status
, NT_STATUS_MORE_PROCESSING_REQUIRED
));
437 data_blob_free(&blob_in
);
439 if (NT_STATUS_IS_OK(status
)) {
440 /* Replace the old state, if any. */
441 if (cli
->trans_enc_state
) {
442 common_free_encryption_state(&cli
->trans_enc_state
);
444 cli
->trans_enc_state
= es
;
445 cli
->trans_enc_state
->enc_on
= True
;
451 common_free_encryption_state(&es
);
455 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
457 #ifndef SMB_GSS_REQUIRED_FLAGS
458 #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)
461 /******************************************************************************
462 Get client gss blob to send to a server.
463 ******************************************************************************/
465 static NTSTATUS
make_cli_gss_blob(struct smb_trans_enc_state
*es
,
469 DATA_BLOB spnego_blob_in
,
470 DATA_BLOB
*p_blob_out
)
472 const char *krb_mechs
[] = {OID_KERBEROS5
, NULL
};
476 gss_buffer_desc input_name
;
477 gss_buffer_desc
*p_tok_in
;
478 gss_buffer_desc tok_out
, tok_in
;
479 DATA_BLOB blob_out
= data_blob_null
;
480 DATA_BLOB blob_in
= data_blob_null
;
481 char *host_princ_s
= NULL
;
482 OM_uint32 ret_flags
= 0;
483 NTSTATUS status
= NT_STATUS_OK
;
485 gss_OID_desc nt_hostbased_service
=
486 {10, CONST_DISCARD(char *,"\x2a\x86\x48\x86\xf7\x12\x01\x02\x01\x04")};
488 memset(&tok_out
, '\0', sizeof(tok_out
));
490 /* Get a ticket for the service@host */
491 asprintf(&host_princ_s
, "%s@%s", service
, host
);
492 if (host_princ_s
== NULL
) {
493 return NT_STATUS_NO_MEMORY
;
496 input_name
.value
= host_princ_s
;
497 input_name
.length
= strlen(host_princ_s
) + 1;
499 ret
= gss_import_name(&min
,
501 &nt_hostbased_service
,
504 if (ret
!= GSS_S_COMPLETE
) {
505 SAFE_FREE(host_princ_s
);
506 return map_nt_error_from_gss(ret
, min
);
509 if (spnego_blob_in
.length
== 0) {
510 p_tok_in
= GSS_C_NO_BUFFER
;
512 /* Remove the SPNEGO wrapper */
513 if (!spnego_parse_auth_response(spnego_blob_in
, status_in
, OID_KERBEROS5
, &blob_in
)) {
514 status
= NT_STATUS_UNSUCCESSFUL
;
517 tok_in
.value
= blob_in
.data
;
518 tok_in
.length
= blob_in
.length
;
522 ret
= gss_init_sec_context(&min
,
523 GSS_C_NO_CREDENTIAL
, /* Use our default cred. */
524 &es
->s
.gss_state
->gss_ctx
,
526 GSS_C_NO_OID
, /* default OID. */
527 GSS_C_MUTUAL_FLAG
| GSS_C_REPLAY_FLAG
| GSS_C_SEQUENCE_FLAG
,
528 GSS_C_INDEFINITE
, /* requested ticket lifetime. */
529 NULL
, /* no channel bindings */
531 NULL
, /* ignore mech type */
534 NULL
); /* ignore time_rec */
536 status
= map_nt_error_from_gss(ret
, min
);
537 if (!NT_STATUS_IS_OK(status
) && !NT_STATUS_EQUAL(status
,NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
538 ADS_STATUS adss
= ADS_ERROR_GSS(ret
, min
);
539 DEBUG(10,("make_cli_gss_blob: gss_init_sec_context failed with %s\n",
544 if ((ret_flags
& SMB_GSS_REQUIRED_FLAGS
) != SMB_GSS_REQUIRED_FLAGS
) {
545 status
= NT_STATUS_ACCESS_DENIED
;
548 blob_out
= data_blob(tok_out
.value
, tok_out
.length
);
550 /* Wrap in an SPNEGO wrapper */
551 *p_blob_out
= gen_negTokenTarg(krb_mechs
, blob_out
);
555 data_blob_free(&blob_out
);
556 data_blob_free(&blob_in
);
557 SAFE_FREE(host_princ_s
);
558 gss_release_name(&min
, &srv_name
);
560 gss_release_buffer(&min
, &tok_out
);
565 /******************************************************************************
566 Start a SPNEGO gssapi encryption context.
567 ******************************************************************************/
569 NTSTATUS
cli_gss_smb_encryption_start(struct cli_state
*cli
)
571 DATA_BLOB blob_recv
= data_blob_null
;
572 DATA_BLOB blob_send
= data_blob_null
;
573 DATA_BLOB param_out
= data_blob_null
;
574 NTSTATUS status
= NT_STATUS_UNSUCCESSFUL
;
576 const char *servicename
;
577 struct smb_trans_enc_state
*es
= make_cli_enc_state(SMB_TRANS_ENC_GSS
);
580 return NT_STATUS_NO_MEMORY
;
583 name_to_fqdn(fqdn
, cli
->desthost
);
586 servicename
= "cifs";
587 status
= make_cli_gss_blob(es
, servicename
, fqdn
, NT_STATUS_OK
, blob_recv
, &blob_send
);
588 if (!NT_STATUS_EQUAL(status
,NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
589 servicename
= "host";
590 status
= make_cli_gss_blob(es
, servicename
, fqdn
, NT_STATUS_OK
, blob_recv
, &blob_send
);
591 if (!NT_STATUS_EQUAL(status
,NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
597 data_blob_free(&blob_recv
);
598 status
= enc_blob_send_receive(cli
, &blob_send
, &blob_recv
, ¶m_out
);
599 if (param_out
.length
== 2) {
600 es
->enc_ctx_num
= SVAL(param_out
.data
, 0);
602 data_blob_free(&blob_send
);
603 status
= make_cli_gss_blob(es
, servicename
, fqdn
, status
, blob_recv
, &blob_send
);
604 } while (NT_STATUS_EQUAL(status
, NT_STATUS_MORE_PROCESSING_REQUIRED
));
605 data_blob_free(&blob_recv
);
607 if (NT_STATUS_IS_OK(status
)) {
608 /* Replace the old state, if any. */
609 if (cli
->trans_enc_state
) {
610 common_free_encryption_state(&cli
->trans_enc_state
);
612 cli
->trans_enc_state
= es
;
613 cli
->trans_enc_state
->enc_on
= True
;
619 common_free_encryption_state(&es
);
623 NTSTATUS
cli_gss_smb_encryption_start(struct cli_state
*cli
)
625 return NT_STATUS_NOT_SUPPORTED
;