2 Unix SMB/CIFS implementation.
3 SMB Transport encryption (sealing) code - server code.
4 Copyright (C) Jeremy Allison 2007.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "smbd/smbd.h"
22 #include "smbd/globals.h"
23 #include "../libcli/auth/spnego.h"
24 #include "../libcli/auth/ntlmssp.h"
25 #include "ntlmssp_wrap.h"
26 #include "smb_crypt.h"
27 #include "../lib/util/asn1.h"
29 #include "libsmb/libsmb.h"
30 #include "../lib/tsocket/tsocket.h"
32 /******************************************************************************
33 Server side encryption.
34 ******************************************************************************/
36 /******************************************************************************
38 ******************************************************************************/
40 struct smb_srv_trans_enc_ctx
{
41 struct smb_trans_enc_state
*es
;
42 struct auth_ntlmssp_state
*auth_ntlmssp_state
; /* Must be kept in sync with pointer in ec->ntlmssp_state. */
45 /******************************************************************************
46 Return global enc context - this must change if we ever do multiple contexts.
47 ******************************************************************************/
49 static uint16_t srv_enc_ctx(const struct smb_srv_trans_enc_ctx
*ec
)
51 return ec
->es
->enc_ctx_num
;
54 /******************************************************************************
55 Is this an incoming encrypted packet ?
56 ******************************************************************************/
58 bool is_encrypted_packet(struct smbd_server_connection
*sconn
,
64 /* Ignore non-session messages or non 0xFF'E' messages. */
66 || (smb_len(inbuf
) < 8)
67 || !(inbuf
[4] == 0xFF && inbuf
[5] == 'E')) {
71 status
= get_enc_ctx_num(inbuf
, &enc_num
);
72 if (!NT_STATUS_IS_OK(status
)) {
76 /* Encrypted messages are 0xFF'E'<ctx> */
77 if (srv_trans_enc_ctx
&& enc_num
== srv_enc_ctx(srv_trans_enc_ctx
)) {
83 /******************************************************************************
84 Create an auth_ntlmssp_state and ensure pointer copy is correct.
85 ******************************************************************************/
87 static NTSTATUS
make_auth_ntlmssp(const struct tsocket_address
*remote_address
,
88 struct smb_srv_trans_enc_ctx
*ec
)
90 NTSTATUS status
= auth_ntlmssp_prepare(remote_address
,
91 &ec
->auth_ntlmssp_state
);
92 if (!NT_STATUS_IS_OK(status
)) {
93 return nt_status_squash(status
);
96 auth_ntlmssp_want_feature(ec
->auth_ntlmssp_state
, NTLMSSP_FEATURE_SEAL
);
98 status
= auth_ntlmssp_start(ec
->auth_ntlmssp_state
);
100 if (!NT_STATUS_IS_OK(status
)) {
101 return nt_status_squash(status
);
105 * We must remember to update the pointer copy for the common
106 * functions after any auth_ntlmssp_start/auth_ntlmssp_end.
108 ec
->es
->s
.auth_ntlmssp_state
= ec
->auth_ntlmssp_state
;
112 /******************************************************************************
113 Destroy an auth_ntlmssp_state and ensure pointer copy is correct.
114 ******************************************************************************/
116 static void destroy_auth_ntlmssp(struct smb_srv_trans_enc_ctx
*ec
)
119 * We must remember to update the pointer copy for the common
120 * functions after any auth_ntlmssp_start/auth_ntlmssp_end.
123 if (ec
->auth_ntlmssp_state
) {
124 TALLOC_FREE(ec
->auth_ntlmssp_state
);
125 /* The auth_ntlmssp_end killed this already. */
126 ec
->es
->s
.auth_ntlmssp_state
= NULL
;
130 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
132 /******************************************************************************
134 ******************************************************************************/
136 static NTSTATUS
get_srv_gss_creds(const char *service
,
138 gss_cred_usage_t cred_type
,
139 gss_cred_id_t
*p_srv_cred
)
144 gss_buffer_desc input_name
;
145 char *host_princ_s
= NULL
;
146 NTSTATUS status
= NT_STATUS_OK
;
148 gss_OID_desc nt_hostbased_service
=
149 {10, discard_const_p(char, "\x2a\x86\x48\x86\xf7\x12\x01\x02\x01\x04")};
151 if (asprintf(&host_princ_s
, "%s@%s", service
, name
) == -1) {
152 return NT_STATUS_NO_MEMORY
;
155 input_name
.value
= host_princ_s
;
156 input_name
.length
= strlen(host_princ_s
) + 1;
158 ret
= gss_import_name(&min
,
160 &nt_hostbased_service
,
163 DEBUG(10,("get_srv_gss_creds: imported name %s\n",
166 if (ret
!= GSS_S_COMPLETE
) {
167 SAFE_FREE(host_princ_s
);
168 return map_nt_error_from_gss(ret
, min
);
172 * We're accessing the krb5.keytab file here.
173 * ensure we have permissions to do so.
177 ret
= gss_acquire_cred(&min
,
187 if (ret
!= GSS_S_COMPLETE
) {
188 ADS_STATUS adss
= ADS_ERROR_GSS(ret
, min
);
189 DEBUG(10,("get_srv_gss_creds: gss_acquire_cred failed with %s\n",
191 status
= map_nt_error_from_gss(ret
, min
);
194 SAFE_FREE(host_princ_s
);
195 gss_release_name(&min
, &srv_name
);
199 /******************************************************************************
201 Try and get the cifs/server@realm principal first, then fall back to
203 ******************************************************************************/
205 static NTSTATUS
make_auth_gss(struct smb_srv_trans_enc_ctx
*ec
)
208 gss_cred_id_t srv_cred
;
211 name_to_fqdn(fqdn
, lp_netbios_name());
214 status
= get_srv_gss_creds("cifs", fqdn
, GSS_C_ACCEPT
, &srv_cred
);
215 if (!NT_STATUS_IS_OK(status
)) {
216 status
= get_srv_gss_creds("host", fqdn
, GSS_C_ACCEPT
, &srv_cred
);
217 if (!NT_STATUS_IS_OK(status
)) {
218 return nt_status_squash(status
);
222 ec
->es
->s
.gss_state
= SMB_MALLOC_P(struct smb_tran_enc_state_gss
);
223 if (!ec
->es
->s
.gss_state
) {
225 gss_release_cred(&min
, &srv_cred
);
226 return NT_STATUS_NO_MEMORY
;
228 ZERO_STRUCTP(ec
->es
->s
.gss_state
);
229 ec
->es
->s
.gss_state
->creds
= srv_cred
;
231 /* No context yet. */
232 ec
->es
->s
.gss_state
->gss_ctx
= GSS_C_NO_CONTEXT
;
238 /******************************************************************************
239 Shutdown a server encryption context.
240 ******************************************************************************/
242 static void srv_free_encryption_context(struct smb_srv_trans_enc_ctx
**pp_ec
)
244 struct smb_srv_trans_enc_ctx
*ec
= *pp_ec
;
251 switch (ec
->es
->smb_enc_type
) {
252 case SMB_TRANS_ENC_NTLM
:
253 destroy_auth_ntlmssp(ec
);
255 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
256 case SMB_TRANS_ENC_GSS
:
260 common_free_encryption_state(&ec
->es
);
267 /******************************************************************************
268 Create a server encryption context.
269 ******************************************************************************/
271 static NTSTATUS
make_srv_encryption_context(const struct tsocket_address
*remote_address
,
272 enum smb_trans_enc_type smb_enc_type
,
273 struct smb_srv_trans_enc_ctx
**pp_ec
)
275 struct smb_srv_trans_enc_ctx
*ec
;
279 ec
= SMB_MALLOC_P(struct smb_srv_trans_enc_ctx
);
281 return NT_STATUS_NO_MEMORY
;
283 ZERO_STRUCTP(partial_srv_trans_enc_ctx
);
284 ec
->es
= SMB_MALLOC_P(struct smb_trans_enc_state
);
287 return NT_STATUS_NO_MEMORY
;
289 ZERO_STRUCTP(ec
->es
);
290 ec
->es
->smb_enc_type
= smb_enc_type
;
291 switch (smb_enc_type
) {
292 case SMB_TRANS_ENC_NTLM
:
294 NTSTATUS status
= make_auth_ntlmssp(remote_address
,
296 if (!NT_STATUS_IS_OK(status
)) {
297 srv_free_encryption_context(&ec
);
303 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
304 case SMB_TRANS_ENC_GSS
:
305 /* Acquire our credentials by calling gss_acquire_cred here. */
307 NTSTATUS status
= make_auth_gss(ec
);
308 if (!NT_STATUS_IS_OK(status
)) {
309 srv_free_encryption_context(&ec
);
316 srv_free_encryption_context(&ec
);
317 return NT_STATUS_INVALID_PARAMETER
;
323 /******************************************************************************
324 Free an encryption-allocated buffer.
325 ******************************************************************************/
327 void srv_free_enc_buffer(struct smbd_server_connection
*sconn
, char *buf
)
329 /* We know this is an smb buffer, and we
330 * didn't malloc, only copy, for a keepalive,
331 * so ignore non-session messages. */
337 if (srv_trans_enc_ctx
) {
338 common_free_enc_buffer(srv_trans_enc_ctx
->es
, buf
);
342 /******************************************************************************
343 Decrypt an incoming buffer.
344 ******************************************************************************/
346 NTSTATUS
srv_decrypt_buffer(struct smbd_server_connection
*sconn
, char *buf
)
348 /* Ignore non-session messages. */
353 if (srv_trans_enc_ctx
) {
354 return common_decrypt_buffer(srv_trans_enc_ctx
->es
, buf
);
360 /******************************************************************************
361 Encrypt an outgoing buffer. Return the encrypted pointer in buf_out.
362 ******************************************************************************/
364 NTSTATUS
srv_encrypt_buffer(struct smbd_server_connection
*sconn
, char *buf
,
369 /* Ignore non-session messages. */
374 if (srv_trans_enc_ctx
) {
375 return common_encrypt_buffer(srv_trans_enc_ctx
->es
, buf
, buf_out
);
377 /* Not encrypting. */
381 /******************************************************************************
382 Do the gss encryption negotiation. Parameters are in/out.
383 Until success we do everything on the partial enc ctx.
384 ******************************************************************************/
386 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
387 static NTSTATUS
srv_enc_spnego_gss_negotiate(const struct tsocket_address
*remote_address
,
388 unsigned char **ppdata
,
395 gss_buffer_desc in_buf
, out_buf
;
396 struct smb_tran_enc_state_gss
*gss_state
;
397 DATA_BLOB auth_reply
= data_blob_null
;
398 DATA_BLOB response
= data_blob_null
;
401 if (!partial_srv_trans_enc_ctx
) {
402 status
= make_srv_encryption_context(remote_address
,
404 &partial_srv_trans_enc_ctx
);
405 if (!NT_STATUS_IS_OK(status
)) {
410 gss_state
= partial_srv_trans_enc_ctx
->es
->s
.gss_state
;
412 in_buf
.value
= secblob
.data
;
413 in_buf
.length
= secblob
.length
;
415 out_buf
.value
= NULL
;
420 ret
= gss_accept_sec_context(&min
,
424 GSS_C_NO_CHANNEL_BINDINGS
,
426 NULL
, /* Ignore oids. */
427 &out_buf
, /* To return. */
429 NULL
, /* Ingore time. */
430 NULL
); /* Ignore delegated creds. */
433 status
= gss_err_to_ntstatus(ret
, min
);
434 if (ret
!= GSS_S_COMPLETE
&& ret
!= GSS_S_CONTINUE_NEEDED
) {
438 /* Ensure we've got sign+seal available. */
439 if (ret
== GSS_S_COMPLETE
) {
440 if ((flags
& (GSS_C_INTEG_FLAG
|GSS_C_CONF_FLAG
|GSS_C_REPLAY_FLAG
|GSS_C_SEQUENCE_FLAG
)) !=
441 (GSS_C_INTEG_FLAG
|GSS_C_CONF_FLAG
|GSS_C_REPLAY_FLAG
|GSS_C_SEQUENCE_FLAG
)) {
442 DEBUG(0,("srv_enc_spnego_gss_negotiate: quality of service not good enough "
443 "for SMB sealing.\n"));
444 gss_release_buffer(&min
, &out_buf
);
445 return NT_STATUS_ACCESS_DENIED
;
449 auth_reply
= data_blob(out_buf
.value
, out_buf
.length
);
450 gss_release_buffer(&min
, &out_buf
);
452 /* Wrap in SPNEGO. */
453 response
= spnego_gen_auth_response(talloc_tos(), &auth_reply
, status
, OID_KERBEROS5
);
454 data_blob_free(&auth_reply
);
457 *ppdata
= (unsigned char *)memdup(response
.data
, response
.length
);
458 if ((*ppdata
) == NULL
&& response
.length
> 0) {
459 status
= NT_STATUS_NO_MEMORY
;
461 *p_data_size
= response
.length
;
463 data_blob_free(&response
);
469 /******************************************************************************
470 Do the NTLM SPNEGO (or raw) encryption negotiation. Parameters are in/out.
471 Until success we do everything on the partial enc ctx.
472 ******************************************************************************/
474 static NTSTATUS
srv_enc_ntlm_negotiate(const struct tsocket_address
*remote_address
,
475 unsigned char **ppdata
,
481 DATA_BLOB chal
= data_blob_null
;
482 DATA_BLOB response
= data_blob_null
;
484 status
= make_srv_encryption_context(remote_address
,
486 &partial_srv_trans_enc_ctx
);
487 if (!NT_STATUS_IS_OK(status
)) {
491 status
= auth_ntlmssp_update(partial_srv_trans_enc_ctx
->auth_ntlmssp_state
,
492 partial_srv_trans_enc_ctx
->auth_ntlmssp_state
,
495 /* status here should be NT_STATUS_MORE_PROCESSING_REQUIRED
499 response
= spnego_gen_auth_response(talloc_tos(), &chal
, status
, OID_NTLMSSP
);
500 data_blob_free(&chal
);
502 /* Return the raw blob. */
507 *ppdata
= (unsigned char *)memdup(response
.data
, response
.length
);
508 if ((*ppdata
) == NULL
&& response
.length
> 0) {
509 status
= NT_STATUS_NO_MEMORY
;
511 *p_data_size
= response
.length
;
512 data_blob_free(&response
);
517 /******************************************************************************
518 Do the SPNEGO encryption negotiation. Parameters are in/out.
519 Based off code in smbd/sesssionsetup.c
520 Until success we do everything on the partial enc ctx.
521 ******************************************************************************/
523 static NTSTATUS
srv_enc_spnego_negotiate(connection_struct
*conn
,
524 unsigned char **ppdata
,
526 unsigned char **pparam
,
527 size_t *p_param_size
)
530 DATA_BLOB blob
= data_blob_null
;
531 DATA_BLOB secblob
= data_blob_null
;
532 char *kerb_mech
= NULL
;
534 blob
= data_blob_const(*ppdata
, *p_data_size
);
536 status
= parse_spnego_mechanisms(talloc_tos(), blob
, &secblob
, &kerb_mech
);
537 if (!NT_STATUS_IS_OK(status
)) {
538 return nt_status_squash(status
);
541 /* We should have no partial context at this point. */
543 srv_free_encryption_context(&partial_srv_trans_enc_ctx
);
546 TALLOC_FREE(kerb_mech
);
548 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
549 status
= srv_enc_spnego_gss_negotiate(conn
->sconn
->remote_address
,
554 /* Currently we don't SPNEGO negotiate
555 * back to NTLMSSP as we do in sessionsetupX. We should... */
556 return NT_STATUS_LOGON_FAILURE
;
559 status
= srv_enc_ntlm_negotiate(conn
->sconn
->remote_address
,
566 data_blob_free(&secblob
);
568 if (!NT_STATUS_EQUAL(status
,NT_STATUS_MORE_PROCESSING_REQUIRED
) && !NT_STATUS_IS_OK(status
)) {
569 srv_free_encryption_context(&partial_srv_trans_enc_ctx
);
570 return nt_status_squash(status
);
573 if (NT_STATUS_IS_OK(status
)) {
574 /* Return the context we're using for this encryption state. */
575 if (!(*pparam
= SMB_MALLOC_ARRAY(unsigned char, 2))) {
576 return NT_STATUS_NO_MEMORY
;
578 SSVAL(*pparam
,0,partial_srv_trans_enc_ctx
->es
->enc_ctx_num
);
585 /******************************************************************************
586 Complete a SPNEGO encryption negotiation. Parameters are in/out.
587 We only get this for a NTLM auth second stage.
588 ******************************************************************************/
590 static NTSTATUS
srv_enc_spnego_ntlm_auth(connection_struct
*conn
,
591 unsigned char **ppdata
,
593 unsigned char **pparam
,
594 size_t *p_param_size
)
597 DATA_BLOB blob
= data_blob_null
;
598 DATA_BLOB auth
= data_blob_null
;
599 DATA_BLOB auth_reply
= data_blob_null
;
600 DATA_BLOB response
= data_blob_null
;
601 struct smb_srv_trans_enc_ctx
*ec
= partial_srv_trans_enc_ctx
;
603 /* We must have a partial context here. */
605 if (!ec
|| !ec
->es
|| ec
->auth_ntlmssp_state
== NULL
|| ec
->es
->smb_enc_type
!= SMB_TRANS_ENC_NTLM
) {
606 srv_free_encryption_context(&partial_srv_trans_enc_ctx
);
607 return NT_STATUS_INVALID_PARAMETER
;
610 blob
= data_blob_const(*ppdata
, *p_data_size
);
611 if (!spnego_parse_auth(talloc_tos(), blob
, &auth
)) {
612 srv_free_encryption_context(&partial_srv_trans_enc_ctx
);
613 return NT_STATUS_INVALID_PARAMETER
;
616 status
= auth_ntlmssp_update(ec
->auth_ntlmssp_state
, talloc_tos(), auth
, &auth_reply
);
617 data_blob_free(&auth
);
623 * This field SHALL only be present in the first reply from the
625 * So set mechOID to NULL here.
628 response
= spnego_gen_auth_response(talloc_tos(), &auth_reply
, status
, NULL
);
629 data_blob_free(&auth_reply
);
631 if (NT_STATUS_IS_OK(status
)) {
632 /* Return the context we're using for this encryption state. */
633 if (!(*pparam
= SMB_MALLOC_ARRAY(unsigned char, 2))) {
634 return NT_STATUS_NO_MEMORY
;
636 SSVAL(*pparam
,0,ec
->es
->enc_ctx_num
);
641 *ppdata
= (unsigned char *)memdup(response
.data
, response
.length
);
642 if ((*ppdata
) == NULL
&& response
.length
> 0)
643 return NT_STATUS_NO_MEMORY
;
644 *p_data_size
= response
.length
;
645 data_blob_free(&response
);
649 /******************************************************************************
650 Raw NTLM encryption negotiation. Parameters are in/out.
651 This function does both steps.
652 ******************************************************************************/
654 static NTSTATUS
srv_enc_raw_ntlm_auth(connection_struct
*conn
,
655 unsigned char **ppdata
,
657 unsigned char **pparam
,
658 size_t *p_param_size
)
661 DATA_BLOB blob
= data_blob_const(*ppdata
, *p_data_size
);
662 DATA_BLOB response
= data_blob_null
;
663 struct smb_srv_trans_enc_ctx
*ec
;
665 if (!partial_srv_trans_enc_ctx
) {
666 /* This is the initial step. */
667 status
= srv_enc_ntlm_negotiate(conn
->sconn
->remote_address
,
672 if (!NT_STATUS_EQUAL(status
,NT_STATUS_MORE_PROCESSING_REQUIRED
) && !NT_STATUS_IS_OK(status
)) {
673 srv_free_encryption_context(&partial_srv_trans_enc_ctx
);
674 return nt_status_squash(status
);
679 ec
= partial_srv_trans_enc_ctx
;
680 if (!ec
|| !ec
->es
|| ec
->auth_ntlmssp_state
== NULL
|| ec
->es
->smb_enc_type
!= SMB_TRANS_ENC_NTLM
) {
681 srv_free_encryption_context(&partial_srv_trans_enc_ctx
);
682 return NT_STATUS_INVALID_PARAMETER
;
686 status
= auth_ntlmssp_update(partial_srv_trans_enc_ctx
->auth_ntlmssp_state
,
690 if (NT_STATUS_IS_OK(status
)) {
691 /* Return the context we're using for this encryption state. */
692 if (!(*pparam
= SMB_MALLOC_ARRAY(unsigned char, 2))) {
693 return NT_STATUS_NO_MEMORY
;
695 SSVAL(*pparam
,0,ec
->es
->enc_ctx_num
);
699 /* Return the raw blob. */
701 *ppdata
= (unsigned char *)memdup(response
.data
, response
.length
);
702 if ((*ppdata
) == NULL
&& response
.length
> 0)
703 return NT_STATUS_NO_MEMORY
;
704 *p_data_size
= response
.length
;
705 data_blob_free(&response
);
709 /******************************************************************************
710 Do the SPNEGO encryption negotiation. Parameters are in/out.
711 ******************************************************************************/
713 NTSTATUS
srv_request_encryption_setup(connection_struct
*conn
,
714 unsigned char **ppdata
,
716 unsigned char **pparam
,
717 size_t *p_param_size
)
719 unsigned char *pdata
= *ppdata
;
724 if (*p_data_size
< 1) {
725 return NT_STATUS_INVALID_PARAMETER
;
728 if (pdata
[0] == ASN1_APPLICATION(0)) {
729 /* its a negTokenTarg packet */
730 return srv_enc_spnego_negotiate(conn
, ppdata
, p_data_size
, pparam
, p_param_size
);
733 if (pdata
[0] == ASN1_CONTEXT(1)) {
734 /* It's an auth packet */
735 return srv_enc_spnego_ntlm_auth(conn
, ppdata
, p_data_size
, pparam
, p_param_size
);
738 /* Maybe it's a raw unwrapped auth ? */
739 if (*p_data_size
< 7) {
740 return NT_STATUS_INVALID_PARAMETER
;
743 if (strncmp((char *)pdata
, "NTLMSSP", 7) == 0) {
744 return srv_enc_raw_ntlm_auth(conn
, ppdata
, p_data_size
, pparam
, p_param_size
);
747 DEBUG(1,("srv_request_encryption_setup: Unknown packet\n"));
749 return NT_STATUS_LOGON_FAILURE
;
752 /******************************************************************************
753 Negotiation was successful - turn on server-side encryption.
754 ******************************************************************************/
756 static NTSTATUS
check_enc_good(struct smb_srv_trans_enc_ctx
*ec
)
758 if (!ec
|| !ec
->es
) {
759 return NT_STATUS_LOGON_FAILURE
;
762 if (ec
->es
->smb_enc_type
== SMB_TRANS_ENC_NTLM
) {
763 if (!auth_ntlmssp_negotiated_sign((ec
->auth_ntlmssp_state
))) {
764 return NT_STATUS_INVALID_PARAMETER
;
767 if (!auth_ntlmssp_negotiated_seal((ec
->auth_ntlmssp_state
))) {
768 return NT_STATUS_INVALID_PARAMETER
;
771 /* Todo - check gssapi case. */
776 /******************************************************************************
777 Negotiation was successful - turn on server-side encryption.
778 ******************************************************************************/
780 NTSTATUS
srv_encryption_start(connection_struct
*conn
)
784 /* Check that we are really doing sign+seal. */
785 status
= check_enc_good(partial_srv_trans_enc_ctx
);
786 if (!NT_STATUS_IS_OK(status
)) {
789 /* Throw away the context we're using currently (if any). */
790 srv_free_encryption_context(&srv_trans_enc_ctx
);
792 /* Steal the partial pointer. Deliberate shallow copy. */
793 srv_trans_enc_ctx
= partial_srv_trans_enc_ctx
;
794 srv_trans_enc_ctx
->es
->enc_on
= true;
796 partial_srv_trans_enc_ctx
= NULL
;
798 DEBUG(1,("srv_encryption_start: context negotiated\n"));
802 /******************************************************************************
803 Shutdown all server contexts.
804 ******************************************************************************/
806 void server_encryption_shutdown(struct smbd_server_connection
*sconn
)
808 srv_free_encryption_context(&partial_srv_trans_enc_ctx
);
809 srv_free_encryption_context(&srv_trans_enc_ctx
);