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 "../libcli/auth/spnego.h"
23 #include "../libcli/auth/ntlmssp.h"
24 #include "async_smb.h"
26 /****************************************************************************
27 Get UNIX extensions version info.
28 ****************************************************************************/
30 struct cli_unix_extensions_version_state {
31 struct cli_state *cli;
34 uint16_t major, minor;
35 uint32_t caplow, caphigh;
38 static void cli_unix_extensions_version_done(struct tevent_req *subreq);
40 struct tevent_req *cli_unix_extensions_version_send(TALLOC_CTX *mem_ctx,
41 struct tevent_context *ev,
42 struct cli_state *cli)
44 struct tevent_req *req, *subreq;
45 struct cli_unix_extensions_version_state *state;
47 req = tevent_req_create(mem_ctx, &state,
48 struct cli_unix_extensions_version_state);
53 SSVAL(state->setup, 0, TRANSACT2_QFSINFO);
54 SSVAL(state->param, 0, SMB_QUERY_CIFS_UNIX_INFO);
56 subreq = cli_trans_send(state, ev, cli, SMBtrans2,
61 if (tevent_req_nomem(subreq, req)) {
62 return tevent_req_post(req, ev);
64 tevent_req_set_callback(subreq, cli_unix_extensions_version_done, req);
68 static void cli_unix_extensions_version_done(struct tevent_req *subreq)
70 struct tevent_req *req = tevent_req_callback_data(
71 subreq, struct tevent_req);
72 struct cli_unix_extensions_version_state *state = tevent_req_data(
73 req, struct cli_unix_extensions_version_state);
78 status = cli_trans_recv(subreq, state, NULL, NULL, 0, NULL,
79 NULL, 0, NULL, &data, 12, &num_data);
81 if (!NT_STATUS_IS_OK(status)) {
82 tevent_req_nterror(req, status);
86 state->major = SVAL(data, 0);
87 state->minor = SVAL(data, 2);
88 state->caplow = IVAL(data, 4);
89 state->caphigh = IVAL(data, 8);
94 NTSTATUS cli_unix_extensions_version_recv(struct tevent_req *req,
95 uint16_t *pmajor, uint16_t *pminor,
99 struct cli_unix_extensions_version_state *state = tevent_req_data(
100 req, struct cli_unix_extensions_version_state);
103 if (tevent_req_is_nterror(req, &status)) {
106 *pmajor = state->major;
107 *pminor = state->minor;
108 *pcaplow = state->caplow;
109 *pcaphigh = state->caphigh;
110 state->cli->server_posix_capabilities = *pcaplow;
114 NTSTATUS cli_unix_extensions_version(struct cli_state *cli, uint16 *pmajor,
115 uint16 *pminor, uint32 *pcaplow,
118 TALLOC_CTX *frame = talloc_stackframe();
119 struct event_context *ev;
120 struct tevent_req *req;
121 NTSTATUS status = NT_STATUS_OK;
123 if (cli_has_async_calls(cli)) {
125 * Can't use sync call while an async call is in flight
127 status = NT_STATUS_INVALID_PARAMETER;
131 ev = event_context_init(frame);
133 status = NT_STATUS_NO_MEMORY;
137 req = cli_unix_extensions_version_send(frame, ev, cli);
139 status = NT_STATUS_NO_MEMORY;
143 if (!tevent_req_poll(req, ev)) {
144 status = map_nt_error_from_unix(errno);
148 status = cli_unix_extensions_version_recv(req, pmajor, pminor, pcaplow,
152 if (!NT_STATUS_IS_OK(status)) {
153 cli_set_error(cli, status);
158 /****************************************************************************
159 Set UNIX extensions capabilities.
160 ****************************************************************************/
162 struct cli_set_unix_extensions_capabilities_state {
163 struct cli_state *cli;
169 static void cli_set_unix_extensions_capabilities_done(
170 struct tevent_req *subreq);
172 struct tevent_req *cli_set_unix_extensions_capabilities_send(
173 TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct cli_state *cli,
174 uint16_t major, uint16_t minor, uint32_t caplow, uint32_t caphigh)
176 struct tevent_req *req, *subreq;
177 struct cli_set_unix_extensions_capabilities_state *state;
179 req = tevent_req_create(
181 struct cli_set_unix_extensions_capabilities_state);
187 SSVAL(state->setup+0, 0, TRANSACT2_SETFSINFO);
189 SSVAL(state->param, 0, 0);
190 SSVAL(state->param, 2, SMB_SET_CIFS_UNIX_INFO);
192 SSVAL(state->data, 0, major);
193 SSVAL(state->data, 2, minor);
194 SIVAL(state->data, 4, caplow);
195 SIVAL(state->data, 8, caphigh);
197 subreq = cli_trans_send(state, ev, cli, SMBtrans2,
201 state->data, 12, 560);
202 if (tevent_req_nomem(subreq, req)) {
203 return tevent_req_post(req, ev);
205 tevent_req_set_callback(
206 subreq, cli_set_unix_extensions_capabilities_done, req);
210 static void cli_set_unix_extensions_capabilities_done(
211 struct tevent_req *subreq)
213 struct tevent_req *req = tevent_req_callback_data(
214 subreq, struct tevent_req);
215 struct cli_set_unix_extensions_capabilities_state *state = tevent_req_data(
216 req, struct cli_set_unix_extensions_capabilities_state);
218 NTSTATUS status = cli_trans_recv(subreq, NULL, NULL, NULL, 0, NULL,
219 NULL, 0, NULL, NULL, 0, NULL);
220 if (NT_STATUS_IS_OK(status)) {
221 state->cli->requested_posix_capabilities = IVAL(state->data, 4);
223 tevent_req_simple_finish_ntstatus(subreq, status);
226 NTSTATUS cli_set_unix_extensions_capabilities_recv(struct tevent_req *req)
228 return tevent_req_simple_recv_ntstatus(req);
231 NTSTATUS cli_set_unix_extensions_capabilities(struct cli_state *cli,
232 uint16 major, uint16 minor,
233 uint32 caplow, uint32 caphigh)
235 struct tevent_context *ev;
236 struct tevent_req *req;
237 NTSTATUS status = NT_STATUS_NO_MEMORY;
239 if (cli_has_async_calls(cli)) {
240 return NT_STATUS_INVALID_PARAMETER;
242 ev = tevent_context_init(talloc_tos());
246 req = cli_set_unix_extensions_capabilities_send(
247 ev, ev, cli, major, minor, caplow, caphigh);
251 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
254 status = cli_set_unix_extensions_capabilities_recv(req);
257 if (!NT_STATUS_IS_OK(status)) {
258 cli_set_error(cli, status);
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);
356 if (!NT_STATUS_IS_OK(status)) {
357 cli_set_error(cli, status);
362 NTSTATUS cli_get_fs_volume_info(struct cli_state *cli, fstring volume_name,
363 uint32 *pserial_number, time_t *pdate)
369 uint32_t rdata_count;
372 SSVAL(setup, 0, TRANSACT2_QFSINFO);
373 SSVAL(param,0,SMB_QUERY_FS_VOLUME_INFO);
375 status = cli_trans(talloc_tos(), cli, SMBtrans2,
383 &rdata, 10, &rdata_count);
384 if (!NT_STATUS_IS_OK(status)) {
390 ts = interpret_long_date((char *)rdata);
393 if (pserial_number) {
394 *pserial_number = IVAL(rdata,8);
396 nlen = IVAL(rdata,12);
397 clistr_pull(cli->inbuf, volume_name, rdata + 18, sizeof(fstring),
400 /* todo: but not yet needed
401 * return the other stuff
408 NTSTATUS cli_get_fs_full_size_info(struct cli_state *cli,
409 uint64_t *total_allocation_units,
410 uint64_t *caller_allocation_units,
411 uint64_t *actual_allocation_units,
412 uint64_t *sectors_per_allocation_unit,
413 uint64_t *bytes_per_sector)
417 uint8_t *rdata = NULL;
418 uint32_t rdata_count;
421 SSVAL(setup, 0, TRANSACT2_QFSINFO);
422 SSVAL(param, 0, SMB_FS_FULL_SIZE_INFORMATION);
424 status = cli_trans(talloc_tos(), cli, SMBtrans2,
426 setup, 1, 0, /* setup */
427 param, 2, 0, /* param */
428 NULL, 0, 560, /* data */
430 NULL, 0, NULL, /* rsetup */
431 NULL, 0, NULL, /* rparam */
432 &rdata, 32, &rdata_count); /* rdata */
433 if (!NT_STATUS_IS_OK(status)) {
437 if (total_allocation_units) {
438 *total_allocation_units = BIG_UINT(rdata, 0);
440 if (caller_allocation_units) {
441 *caller_allocation_units = BIG_UINT(rdata,8);
443 if (actual_allocation_units) {
444 *actual_allocation_units = BIG_UINT(rdata,16);
446 if (sectors_per_allocation_unit) {
447 *sectors_per_allocation_unit = IVAL(rdata,24);
449 if (bytes_per_sector) {
450 *bytes_per_sector = IVAL(rdata,28);
458 NTSTATUS cli_get_posix_fs_info(struct cli_state *cli,
459 uint32 *optimal_transfer_size,
461 uint64_t *total_blocks,
462 uint64_t *blocks_available,
463 uint64_t *user_blocks_available,
464 uint64_t *total_file_nodes,
465 uint64_t *free_file_nodes,
466 uint64_t *fs_identifier)
470 uint8_t *rdata = NULL;
473 SSVAL(setup, 0, TRANSACT2_QFSINFO);
474 SSVAL(param,0,SMB_QUERY_POSIX_FS_INFO);
476 status = cli_trans(talloc_tos(), cli, SMBtrans2, NULL, 0, 0, 0,
481 NULL, 0, NULL, /* rsetup */
482 NULL, 0, NULL, /* rparam */
484 if (!NT_STATUS_IS_OK(status)) {
488 if (optimal_transfer_size) {
489 *optimal_transfer_size = IVAL(rdata, 0);
492 *block_size = IVAL(rdata,4);
495 *total_blocks = BIG_UINT(rdata,8);
497 if (blocks_available) {
498 *blocks_available = BIG_UINT(rdata,16);
500 if (user_blocks_available) {
501 *user_blocks_available = BIG_UINT(rdata,24);
503 if (total_file_nodes) {
504 *total_file_nodes = BIG_UINT(rdata,32);
506 if (free_file_nodes) {
507 *free_file_nodes = BIG_UINT(rdata,40);
510 *fs_identifier = BIG_UINT(rdata,48);
516 /******************************************************************************
517 Send/receive the request encryption blob.
518 ******************************************************************************/
520 static NTSTATUS enc_blob_send_receive(struct cli_state *cli, DATA_BLOB *in, DATA_BLOB *out, DATA_BLOB *param_out)
524 char *rparam=NULL, *rdata=NULL;
525 unsigned int rparam_count=0, rdata_count=0;
526 NTSTATUS status = NT_STATUS_OK;
528 setup = TRANSACT2_SETFSINFO;
531 SSVAL(param,2,SMB_REQUEST_TRANSPORT_ENCRYPTION);
533 if (!cli_send_trans(cli, SMBtrans2,
538 (char *)in->data, in->length, CLI_BUFFER_SIZE)) {
539 status = cli_nt_error(cli);
543 if (!cli_receive_trans(cli, SMBtrans2,
544 &rparam, &rparam_count,
545 &rdata, &rdata_count)) {
546 status = cli_nt_error(cli);
550 if (cli_is_error(cli)) {
551 status = cli_nt_error(cli);
552 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
557 *out = data_blob(rdata, rdata_count);
558 *param_out = data_blob(rparam, rparam_count);
567 /******************************************************************************
568 Make a client state struct.
569 ******************************************************************************/
571 static struct smb_trans_enc_state *make_cli_enc_state(enum smb_trans_enc_type smb_enc_type)
573 struct smb_trans_enc_state *es = NULL;
574 es = SMB_MALLOC_P(struct smb_trans_enc_state);
579 es->smb_enc_type = smb_enc_type;
581 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
582 if (smb_enc_type == SMB_TRANS_ENC_GSS) {
583 es->s.gss_state = SMB_MALLOC_P(struct smb_tran_enc_state_gss);
584 if (!es->s.gss_state) {
588 ZERO_STRUCTP(es->s.gss_state);
594 /******************************************************************************
595 Start a raw ntlmssp encryption.
596 ******************************************************************************/
598 NTSTATUS cli_raw_ntlm_smb_encryption_start(struct cli_state *cli,
603 DATA_BLOB blob_in = data_blob_null;
604 DATA_BLOB blob_out = data_blob_null;
605 DATA_BLOB param_out = data_blob_null;
606 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
607 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_NTLM);
610 return NT_STATUS_NO_MEMORY;
612 status = ntlmssp_client_start(NULL,
615 lp_client_ntlmv2_auth(),
616 &es->s.ntlmssp_state);
617 if (!NT_STATUS_IS_OK(status)) {
621 ntlmssp_want_feature(es->s.ntlmssp_state, NTLMSSP_FEATURE_SESSION_KEY);
622 es->s.ntlmssp_state->neg_flags |= (NTLMSSP_NEGOTIATE_SIGN|NTLMSSP_NEGOTIATE_SEAL);
624 if (!NT_STATUS_IS_OK(status = ntlmssp_set_username(es->s.ntlmssp_state, user))) {
627 if (!NT_STATUS_IS_OK(status = ntlmssp_set_domain(es->s.ntlmssp_state, domain))) {
630 if (!NT_STATUS_IS_OK(status = ntlmssp_set_password(es->s.ntlmssp_state, pass))) {
635 status = ntlmssp_update(es->s.ntlmssp_state, blob_in, &blob_out);
636 data_blob_free(&blob_in);
637 data_blob_free(¶m_out);
638 if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) || NT_STATUS_IS_OK(status)) {
639 NTSTATUS trans_status = enc_blob_send_receive(cli,
643 if (!NT_STATUS_EQUAL(trans_status,
644 NT_STATUS_MORE_PROCESSING_REQUIRED) &&
645 !NT_STATUS_IS_OK(trans_status)) {
646 status = trans_status;
648 if (param_out.length == 2) {
649 es->enc_ctx_num = SVAL(param_out.data, 0);
653 data_blob_free(&blob_out);
654 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
656 data_blob_free(&blob_in);
658 if (NT_STATUS_IS_OK(status)) {
659 /* Replace the old state, if any. */
660 if (cli->trans_enc_state) {
661 common_free_encryption_state(&cli->trans_enc_state);
663 cli->trans_enc_state = es;
664 cli->trans_enc_state->enc_on = True;
670 common_free_encryption_state(&es);
674 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
676 #ifndef SMB_GSS_REQUIRED_FLAGS
677 #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)
680 /******************************************************************************
681 Get client gss blob to send to a server.
682 ******************************************************************************/
684 static NTSTATUS make_cli_gss_blob(TALLOC_CTX *ctx,
685 struct smb_trans_enc_state *es,
689 DATA_BLOB spnego_blob_in,
690 DATA_BLOB *p_blob_out)
692 const char *krb_mechs[] = {OID_KERBEROS5, NULL};
696 gss_buffer_desc input_name;
697 gss_buffer_desc *p_tok_in;
698 gss_buffer_desc tok_out, tok_in;
699 DATA_BLOB blob_out = data_blob_null;
700 DATA_BLOB blob_in = data_blob_null;
701 char *host_princ_s = NULL;
702 OM_uint32 ret_flags = 0;
703 NTSTATUS status = NT_STATUS_OK;
705 gss_OID_desc nt_hostbased_service =
706 {10, CONST_DISCARD(char *,"\x2a\x86\x48\x86\xf7\x12\x01\x02\x01\x04")};
708 memset(&tok_out, '\0', sizeof(tok_out));
710 /* Get a ticket for the service@host */
711 if (asprintf(&host_princ_s, "%s@%s", service, host) == -1) {
712 return NT_STATUS_NO_MEMORY;
715 input_name.value = host_princ_s;
716 input_name.length = strlen(host_princ_s) + 1;
718 ret = gss_import_name(&min,
720 &nt_hostbased_service,
723 if (ret != GSS_S_COMPLETE) {
724 SAFE_FREE(host_princ_s);
725 return map_nt_error_from_gss(ret, min);
728 if (spnego_blob_in.length == 0) {
729 p_tok_in = GSS_C_NO_BUFFER;
731 /* Remove the SPNEGO wrapper */
732 if (!spnego_parse_auth_response(ctx, spnego_blob_in, status_in, OID_KERBEROS5, &blob_in)) {
733 status = NT_STATUS_UNSUCCESSFUL;
736 tok_in.value = blob_in.data;
737 tok_in.length = blob_in.length;
741 ret = gss_init_sec_context(&min,
742 GSS_C_NO_CREDENTIAL, /* Use our default cred. */
743 &es->s.gss_state->gss_ctx,
745 GSS_C_NO_OID, /* default OID. */
746 GSS_C_MUTUAL_FLAG | GSS_C_REPLAY_FLAG | GSS_C_SEQUENCE_FLAG | GSS_C_DELEG_FLAG,
747 GSS_C_INDEFINITE, /* requested ticket lifetime. */
748 NULL, /* no channel bindings */
750 NULL, /* ignore mech type */
753 NULL); /* ignore time_rec */
755 status = map_nt_error_from_gss(ret, min);
756 if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
757 ADS_STATUS adss = ADS_ERROR_GSS(ret, min);
758 DEBUG(10,("make_cli_gss_blob: gss_init_sec_context failed with %s\n",
763 if ((ret_flags & SMB_GSS_REQUIRED_FLAGS) != SMB_GSS_REQUIRED_FLAGS) {
764 status = NT_STATUS_ACCESS_DENIED;
767 blob_out = data_blob_talloc(ctx, tok_out.value, tok_out.length);
769 /* Wrap in an SPNEGO wrapper */
770 *p_blob_out = spnego_gen_negTokenInit(ctx, krb_mechs, &blob_out, NULL);
774 data_blob_free(&blob_out);
775 data_blob_free(&blob_in);
776 SAFE_FREE(host_princ_s);
777 gss_release_name(&min, &srv_name);
779 gss_release_buffer(&min, &tok_out);
784 /******************************************************************************
785 Start a SPNEGO gssapi encryption context.
786 ******************************************************************************/
788 NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
790 DATA_BLOB blob_recv = data_blob_null;
791 DATA_BLOB blob_send = data_blob_null;
792 DATA_BLOB param_out = data_blob_null;
793 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
795 const char *servicename;
796 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_GSS);
799 return NT_STATUS_NO_MEMORY;
802 name_to_fqdn(fqdn, cli->desthost);
805 servicename = "cifs";
806 status = make_cli_gss_blob(talloc_tos(), es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
807 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
808 servicename = "host";
809 status = make_cli_gss_blob(talloc_tos(), es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
810 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
816 data_blob_free(&blob_recv);
817 status = enc_blob_send_receive(cli, &blob_send, &blob_recv, ¶m_out);
818 if (param_out.length == 2) {
819 es->enc_ctx_num = SVAL(param_out.data, 0);
821 data_blob_free(&blob_send);
822 status = make_cli_gss_blob(talloc_tos(), es, servicename, fqdn, status, blob_recv, &blob_send);
823 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
824 data_blob_free(&blob_recv);
826 if (NT_STATUS_IS_OK(status)) {
827 /* Replace the old state, if any. */
828 if (cli->trans_enc_state) {
829 common_free_encryption_state(&cli->trans_enc_state);
831 cli->trans_enc_state = es;
832 cli->trans_enc_state->enc_on = True;
838 common_free_encryption_state(&es);
842 NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
844 return NT_STATUS_NOT_SUPPORTED;
848 /********************************************************************
849 Ensure a connection is encrypted.
850 ********************************************************************/
852 NTSTATUS cli_force_encryption(struct cli_state *c,
853 const char *username,
854 const char *password,
858 uint32 caplow, caphigh;
861 if (!SERVER_HAS_UNIX_CIFS(c)) {
862 return NT_STATUS_NOT_SUPPORTED;
865 status = cli_unix_extensions_version(c, &major, &minor, &caplow,
867 if (!NT_STATUS_IS_OK(status)) {
868 DEBUG(10, ("cli_force_encryption: cli_unix_extensions_version "
869 "returned %s\n", nt_errstr(status)));
870 return NT_STATUS_UNKNOWN_REVISION;
873 if (!(caplow & CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP)) {
874 return NT_STATUS_UNSUPPORTED_COMPRESSION;
877 if (c->use_kerberos) {
878 return cli_gss_smb_encryption_start(c);
880 return cli_raw_ntlm_smb_encryption_start(c,