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 bool 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)
471 char *rparam=NULL, *rdata=NULL;
472 unsigned int rparam_count=0, rdata_count=0;
474 setup = TRANSACT2_QFSINFO;
476 SSVAL(param,0,SMB_QUERY_POSIX_FS_INFO);
478 if (!cli_send_trans(cli, SMBtrans2,
487 if (!cli_receive_trans(cli, SMBtrans2,
488 &rparam, &rparam_count,
489 &rdata, &rdata_count)) {
493 if (cli_is_error(cli)) {
500 if (rdata_count != 56) {
504 if (optimal_transfer_size) {
505 *optimal_transfer_size = IVAL(rdata, 0);
508 *block_size = IVAL(rdata,4);
511 *total_blocks = BIG_UINT(rdata,8);
513 if (blocks_available) {
514 *blocks_available = BIG_UINT(rdata,16);
516 if (user_blocks_available) {
517 *user_blocks_available = BIG_UINT(rdata,24);
519 if (total_file_nodes) {
520 *total_file_nodes = BIG_UINT(rdata,32);
522 if (free_file_nodes) {
523 *free_file_nodes = BIG_UINT(rdata,40);
526 *fs_identifier = BIG_UINT(rdata,48);
537 /******************************************************************************
538 Send/receive the request encryption blob.
539 ******************************************************************************/
541 static NTSTATUS enc_blob_send_receive(struct cli_state *cli, DATA_BLOB *in, DATA_BLOB *out, DATA_BLOB *param_out)
545 char *rparam=NULL, *rdata=NULL;
546 unsigned int rparam_count=0, rdata_count=0;
547 NTSTATUS status = NT_STATUS_OK;
549 setup = TRANSACT2_SETFSINFO;
552 SSVAL(param,2,SMB_REQUEST_TRANSPORT_ENCRYPTION);
554 if (!cli_send_trans(cli, SMBtrans2,
559 (char *)in->data, in->length, CLI_BUFFER_SIZE)) {
560 status = cli_nt_error(cli);
564 if (!cli_receive_trans(cli, SMBtrans2,
565 &rparam, &rparam_count,
566 &rdata, &rdata_count)) {
567 status = cli_nt_error(cli);
571 if (cli_is_error(cli)) {
572 status = cli_nt_error(cli);
573 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
578 *out = data_blob(rdata, rdata_count);
579 *param_out = data_blob(rparam, rparam_count);
588 /******************************************************************************
589 Make a client state struct.
590 ******************************************************************************/
592 static struct smb_trans_enc_state *make_cli_enc_state(enum smb_trans_enc_type smb_enc_type)
594 struct smb_trans_enc_state *es = NULL;
595 es = SMB_MALLOC_P(struct smb_trans_enc_state);
600 es->smb_enc_type = smb_enc_type;
602 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
603 if (smb_enc_type == SMB_TRANS_ENC_GSS) {
604 es->s.gss_state = SMB_MALLOC_P(struct smb_tran_enc_state_gss);
605 if (!es->s.gss_state) {
609 ZERO_STRUCTP(es->s.gss_state);
615 /******************************************************************************
616 Start a raw ntlmssp encryption.
617 ******************************************************************************/
619 NTSTATUS cli_raw_ntlm_smb_encryption_start(struct cli_state *cli,
624 DATA_BLOB blob_in = data_blob_null;
625 DATA_BLOB blob_out = data_blob_null;
626 DATA_BLOB param_out = data_blob_null;
627 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
628 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_NTLM);
631 return NT_STATUS_NO_MEMORY;
633 status = ntlmssp_client_start(NULL,
636 lp_client_ntlmv2_auth(),
637 &es->s.ntlmssp_state);
638 if (!NT_STATUS_IS_OK(status)) {
642 ntlmssp_want_feature(es->s.ntlmssp_state, NTLMSSP_FEATURE_SESSION_KEY);
643 es->s.ntlmssp_state->neg_flags |= (NTLMSSP_NEGOTIATE_SIGN|NTLMSSP_NEGOTIATE_SEAL);
645 if (!NT_STATUS_IS_OK(status = ntlmssp_set_username(es->s.ntlmssp_state, user))) {
648 if (!NT_STATUS_IS_OK(status = ntlmssp_set_domain(es->s.ntlmssp_state, domain))) {
651 if (!NT_STATUS_IS_OK(status = ntlmssp_set_password(es->s.ntlmssp_state, pass))) {
656 status = ntlmssp_update(es->s.ntlmssp_state, blob_in, &blob_out);
657 data_blob_free(&blob_in);
658 data_blob_free(¶m_out);
659 if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) || NT_STATUS_IS_OK(status)) {
660 NTSTATUS trans_status = enc_blob_send_receive(cli,
664 if (!NT_STATUS_EQUAL(trans_status,
665 NT_STATUS_MORE_PROCESSING_REQUIRED) &&
666 !NT_STATUS_IS_OK(trans_status)) {
667 status = trans_status;
669 if (param_out.length == 2) {
670 es->enc_ctx_num = SVAL(param_out.data, 0);
674 data_blob_free(&blob_out);
675 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
677 data_blob_free(&blob_in);
679 if (NT_STATUS_IS_OK(status)) {
680 /* Replace the old state, if any. */
681 if (cli->trans_enc_state) {
682 common_free_encryption_state(&cli->trans_enc_state);
684 cli->trans_enc_state = es;
685 cli->trans_enc_state->enc_on = True;
691 common_free_encryption_state(&es);
695 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
697 #ifndef SMB_GSS_REQUIRED_FLAGS
698 #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)
701 /******************************************************************************
702 Get client gss blob to send to a server.
703 ******************************************************************************/
705 static NTSTATUS make_cli_gss_blob(TALLOC_CTX *ctx,
706 struct smb_trans_enc_state *es,
710 DATA_BLOB spnego_blob_in,
711 DATA_BLOB *p_blob_out)
713 const char *krb_mechs[] = {OID_KERBEROS5, NULL};
717 gss_buffer_desc input_name;
718 gss_buffer_desc *p_tok_in;
719 gss_buffer_desc tok_out, tok_in;
720 DATA_BLOB blob_out = data_blob_null;
721 DATA_BLOB blob_in = data_blob_null;
722 char *host_princ_s = NULL;
723 OM_uint32 ret_flags = 0;
724 NTSTATUS status = NT_STATUS_OK;
726 gss_OID_desc nt_hostbased_service =
727 {10, CONST_DISCARD(char *,"\x2a\x86\x48\x86\xf7\x12\x01\x02\x01\x04")};
729 memset(&tok_out, '\0', sizeof(tok_out));
731 /* Get a ticket for the service@host */
732 if (asprintf(&host_princ_s, "%s@%s", service, host) == -1) {
733 return NT_STATUS_NO_MEMORY;
736 input_name.value = host_princ_s;
737 input_name.length = strlen(host_princ_s) + 1;
739 ret = gss_import_name(&min,
741 &nt_hostbased_service,
744 if (ret != GSS_S_COMPLETE) {
745 SAFE_FREE(host_princ_s);
746 return map_nt_error_from_gss(ret, min);
749 if (spnego_blob_in.length == 0) {
750 p_tok_in = GSS_C_NO_BUFFER;
752 /* Remove the SPNEGO wrapper */
753 if (!spnego_parse_auth_response(ctx, spnego_blob_in, status_in, OID_KERBEROS5, &blob_in)) {
754 status = NT_STATUS_UNSUCCESSFUL;
757 tok_in.value = blob_in.data;
758 tok_in.length = blob_in.length;
762 ret = gss_init_sec_context(&min,
763 GSS_C_NO_CREDENTIAL, /* Use our default cred. */
764 &es->s.gss_state->gss_ctx,
766 GSS_C_NO_OID, /* default OID. */
767 GSS_C_MUTUAL_FLAG | GSS_C_REPLAY_FLAG | GSS_C_SEQUENCE_FLAG | GSS_C_DELEG_FLAG,
768 GSS_C_INDEFINITE, /* requested ticket lifetime. */
769 NULL, /* no channel bindings */
771 NULL, /* ignore mech type */
774 NULL); /* ignore time_rec */
776 status = map_nt_error_from_gss(ret, min);
777 if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
778 ADS_STATUS adss = ADS_ERROR_GSS(ret, min);
779 DEBUG(10,("make_cli_gss_blob: gss_init_sec_context failed with %s\n",
784 if ((ret_flags & SMB_GSS_REQUIRED_FLAGS) != SMB_GSS_REQUIRED_FLAGS) {
785 status = NT_STATUS_ACCESS_DENIED;
788 blob_out = data_blob_talloc(ctx, tok_out.value, tok_out.length);
790 /* Wrap in an SPNEGO wrapper */
791 *p_blob_out = spnego_gen_negTokenInit(ctx, krb_mechs, &blob_out, NULL);
795 data_blob_free(&blob_out);
796 data_blob_free(&blob_in);
797 SAFE_FREE(host_princ_s);
798 gss_release_name(&min, &srv_name);
800 gss_release_buffer(&min, &tok_out);
805 /******************************************************************************
806 Start a SPNEGO gssapi encryption context.
807 ******************************************************************************/
809 NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
811 DATA_BLOB blob_recv = data_blob_null;
812 DATA_BLOB blob_send = data_blob_null;
813 DATA_BLOB param_out = data_blob_null;
814 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
816 const char *servicename;
817 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_GSS);
820 return NT_STATUS_NO_MEMORY;
823 name_to_fqdn(fqdn, cli->desthost);
826 servicename = "cifs";
827 status = make_cli_gss_blob(talloc_tos(), es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
828 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
829 servicename = "host";
830 status = make_cli_gss_blob(talloc_tos(), es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
831 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
837 data_blob_free(&blob_recv);
838 status = enc_blob_send_receive(cli, &blob_send, &blob_recv, ¶m_out);
839 if (param_out.length == 2) {
840 es->enc_ctx_num = SVAL(param_out.data, 0);
842 data_blob_free(&blob_send);
843 status = make_cli_gss_blob(talloc_tos(), es, servicename, fqdn, status, blob_recv, &blob_send);
844 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
845 data_blob_free(&blob_recv);
847 if (NT_STATUS_IS_OK(status)) {
848 /* Replace the old state, if any. */
849 if (cli->trans_enc_state) {
850 common_free_encryption_state(&cli->trans_enc_state);
852 cli->trans_enc_state = es;
853 cli->trans_enc_state->enc_on = True;
859 common_free_encryption_state(&es);
863 NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
865 return NT_STATUS_NOT_SUPPORTED;
869 /********************************************************************
870 Ensure a connection is encrypted.
871 ********************************************************************/
873 NTSTATUS cli_force_encryption(struct cli_state *c,
874 const char *username,
875 const char *password,
879 uint32 caplow, caphigh;
882 if (!SERVER_HAS_UNIX_CIFS(c)) {
883 return NT_STATUS_NOT_SUPPORTED;
886 status = cli_unix_extensions_version(c, &major, &minor, &caplow,
888 if (!NT_STATUS_IS_OK(status)) {
889 DEBUG(10, ("cli_force_encryption: cli_unix_extensions_version "
890 "returned %s\n", nt_errstr(status)));
891 return NT_STATUS_UNKNOWN_REVISION;
894 if (!(caplow & CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP)) {
895 return NT_STATUS_UNSUPPORTED_COMPRESSION;
898 if (c->use_kerberos) {
899 return cli_gss_smb_encryption_start(c);
901 return cli_raw_ntlm_smb_encryption_start(c,