2 Unix SMB/CIFS implementation.
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Volker Lendecke 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 "smbd/globals.h"
23 #include "../libcli/auth/spnego.h"
25 extern fstring remote_proto
;
27 static void get_challenge(struct smbd_server_connection
*sconn
, uint8 buff
[8])
31 /* We might be called more than once, multiple negprots are
33 if (sconn
->smb1
.negprot
.auth_context
) {
34 DEBUG(3, ("get challenge: is this a secondary negprot? "
35 "sconn->negprot.auth_context is non-NULL!\n"));
36 TALLOC_FREE(sconn
->smb1
.negprot
.auth_context
);
39 DEBUG(10, ("get challenge: creating negprot_global_auth_context\n"));
40 nt_status
= make_auth_context_subsystem(
41 &sconn
->smb1
.negprot
.auth_context
);
42 if (!NT_STATUS_IS_OK(nt_status
)) {
43 DEBUG(0, ("make_auth_context_subsystem returned %s",
44 nt_errstr(nt_status
)));
45 smb_panic("cannot make_negprot_global_auth_context!");
47 DEBUG(10, ("get challenge: getting challenge\n"));
48 sconn
->smb1
.negprot
.auth_context
->get_ntlm_challenge(
49 sconn
->smb1
.negprot
.auth_context
, buff
);
52 /****************************************************************************
53 Reply for the core protocol.
54 ****************************************************************************/
56 static void reply_corep(struct smb_request
*req
, uint16 choice
)
58 reply_outbuf(req
, 1, 0);
59 SSVAL(req
->outbuf
, smb_vwv0
, choice
);
61 set_Protocol(PROTOCOL_CORE
);
64 /****************************************************************************
65 Reply for the coreplus protocol.
66 ****************************************************************************/
68 static void reply_coreplus(struct smb_request
*req
, uint16 choice
)
70 int raw
= (lp_readraw()?1:0) | (lp_writeraw()?2:0);
72 reply_outbuf(req
, 13, 0);
74 SSVAL(req
->outbuf
,smb_vwv0
,choice
);
75 SSVAL(req
->outbuf
,smb_vwv5
,raw
); /* tell redirector we support
76 readbraw and writebraw (possibly) */
77 /* Reply, SMBlockread, SMBwritelock supported. */
78 SCVAL(req
->outbuf
,smb_flg
,FLAG_REPLY
|FLAG_SUPPORT_LOCKREAD
);
79 SSVAL(req
->outbuf
,smb_vwv1
,0x1); /* user level security, don't
81 set_Protocol(PROTOCOL_COREPLUS
);
84 /****************************************************************************
85 Reply for the lanman 1.0 protocol.
86 ****************************************************************************/
88 static void reply_lanman1(struct smb_request
*req
, uint16 choice
)
90 int raw
= (lp_readraw()?1:0) | (lp_writeraw()?2:0);
92 time_t t
= time(NULL
);
93 struct smbd_server_connection
*sconn
= req
->sconn
;
95 sconn
->smb1
.negprot
.encrypted_passwords
= lp_encrypted_passwords();
97 if (lp_security()>=SEC_USER
) {
98 secword
|= NEGOTIATE_SECURITY_USER_LEVEL
;
100 if (sconn
->smb1
.negprot
.encrypted_passwords
) {
101 secword
|= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
;
104 reply_outbuf(req
, 13, sconn
->smb1
.negprot
.encrypted_passwords
?8:0);
106 SSVAL(req
->outbuf
,smb_vwv0
,choice
);
107 SSVAL(req
->outbuf
,smb_vwv1
,secword
);
108 /* Create a token value and add it to the outgoing packet. */
109 if (sconn
->smb1
.negprot
.encrypted_passwords
) {
110 get_challenge(sconn
, (uint8
*)smb_buf(req
->outbuf
));
111 SSVAL(req
->outbuf
,smb_vwv11
, 8);
114 set_Protocol(PROTOCOL_LANMAN1
);
116 /* Reply, SMBlockread, SMBwritelock supported. */
117 SCVAL(req
->outbuf
,smb_flg
,FLAG_REPLY
|FLAG_SUPPORT_LOCKREAD
);
118 SSVAL(req
->outbuf
,smb_vwv2
,sconn
->smb1
.negprot
.max_recv
);
119 SSVAL(req
->outbuf
,smb_vwv3
,lp_maxmux()); /* maxmux */
120 SSVAL(req
->outbuf
,smb_vwv4
,1);
121 SSVAL(req
->outbuf
,smb_vwv5
,raw
); /* tell redirector we support
122 readbraw writebraw (possibly) */
123 SIVAL(req
->outbuf
,smb_vwv6
,sys_getpid());
124 SSVAL(req
->outbuf
,smb_vwv10
, set_server_zone_offset(t
)/60);
126 srv_put_dos_date((char *)req
->outbuf
,smb_vwv8
,t
);
131 /****************************************************************************
132 Reply for the lanman 2.0 protocol.
133 ****************************************************************************/
135 static void reply_lanman2(struct smb_request
*req
, uint16 choice
)
137 int raw
= (lp_readraw()?1:0) | (lp_writeraw()?2:0);
139 time_t t
= time(NULL
);
140 struct smbd_server_connection
*sconn
= req
->sconn
;
142 sconn
->smb1
.negprot
.encrypted_passwords
= lp_encrypted_passwords();
144 if (lp_security()>=SEC_USER
) {
145 secword
|= NEGOTIATE_SECURITY_USER_LEVEL
;
147 if (sconn
->smb1
.negprot
.encrypted_passwords
) {
148 secword
|= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
;
151 reply_outbuf(req
, 13, sconn
->smb1
.negprot
.encrypted_passwords
?8:0);
153 SSVAL(req
->outbuf
,smb_vwv0
,choice
);
154 SSVAL(req
->outbuf
,smb_vwv1
,secword
);
155 SIVAL(req
->outbuf
,smb_vwv6
,sys_getpid());
157 /* Create a token value and add it to the outgoing packet. */
158 if (sconn
->smb1
.negprot
.encrypted_passwords
) {
159 get_challenge(sconn
, (uint8
*)smb_buf(req
->outbuf
));
160 SSVAL(req
->outbuf
,smb_vwv11
, 8);
163 set_Protocol(PROTOCOL_LANMAN2
);
165 /* Reply, SMBlockread, SMBwritelock supported. */
166 SCVAL(req
->outbuf
,smb_flg
,FLAG_REPLY
|FLAG_SUPPORT_LOCKREAD
);
167 SSVAL(req
->outbuf
,smb_vwv2
,sconn
->smb1
.negprot
.max_recv
);
168 SSVAL(req
->outbuf
,smb_vwv3
,lp_maxmux());
169 SSVAL(req
->outbuf
,smb_vwv4
,1);
170 SSVAL(req
->outbuf
,smb_vwv5
,raw
); /* readbraw and/or writebraw */
171 SSVAL(req
->outbuf
,smb_vwv10
, set_server_zone_offset(t
)/60);
172 srv_put_dos_date((char *)req
->outbuf
,smb_vwv8
,t
);
175 /****************************************************************************
176 Generate the spnego negprot reply blob. Return the number of bytes used.
177 ****************************************************************************/
179 DATA_BLOB
negprot_spnego(TALLOC_CTX
*ctx
, struct smbd_server_connection
*sconn
)
181 DATA_BLOB blob
= data_blob_null
;
182 DATA_BLOB blob_out
= data_blob_null
;
188 const char *OIDs_krb5
[] = {OID_KERBEROS5
,
192 const char *OIDs_ntlm
[] = {OID_NTLMSSP
, NULL
};
194 sconn
->smb1
.negprot
.spnego
= true;
195 /* strangely enough, NT does not sent the single OID NTLMSSP when
196 not a ADS member, it sends no OIDs at all
198 OLD COMMENT : "we can't do this until we teach our sesssion setup parser to know
199 about raw NTLMSSP (clients send no ASN.1 wrapping if we do this)"
201 Our sessionsetup code now handles raw NTLMSSP connects, so we can go
202 back to doing what W2K3 does here. This is needed to make PocketPC 2003
203 CIFS connections work with SPNEGO. See bugzilla bugs #1828 and #3133
208 if (lp_security() != SEC_ADS
&& !USE_KERBEROS_KEYTAB
) {
210 /* Code for PocketPC client */
211 blob
= data_blob(guid
, 16);
213 /* Code for standalone WXP client */
214 blob
= spnego_gen_negTokenInit(ctx
, OIDs_ntlm
, NULL
, "NONE");
218 char *host_princ_s
= NULL
;
219 name_to_fqdn(myname
, global_myname());
221 if (asprintf(&host_princ_s
, "cifs/%s@%s", myname
, lp_realm())
223 return data_blob_null
;
225 blob
= spnego_gen_negTokenInit(ctx
, OIDs_krb5
, NULL
, host_princ_s
);
226 SAFE_FREE(host_princ_s
);
229 blob_out
= data_blob_talloc(ctx
, NULL
, 16 + blob
.length
);
230 if (blob_out
.data
== NULL
) {
231 data_blob_free(&blob
);
232 return data_blob_null
;
235 memset(blob_out
.data
, '\0', 16);
237 safe_strcpy(unix_name
, global_myname(), sizeof(unix_name
)-1);
238 strlower_m(unix_name
);
239 push_ascii_nstring(dos_name
, unix_name
);
240 safe_strcpy((char *)blob_out
.data
, dos_name
, 16);
243 /* Fix valgrind 'uninitialized bytes' issue. */
244 slen
= strlen(dos_name
);
246 memset(blob_out
.data
+slen
, '\0', 16 - slen
);
250 memcpy(&blob_out
.data
[16], blob
.data
, blob
.length
);
252 data_blob_free(&blob
);
257 /****************************************************************************
258 Reply for the nt protocol.
259 ****************************************************************************/
261 static void reply_nt1(struct smb_request
*req
, uint16 choice
)
263 /* dual names + lock_and_read + nt SMBs + remote API calls */
264 int capabilities
= CAP_NT_FIND
|CAP_LOCK_AND_READ
|
265 CAP_LEVEL_II_OPLOCKS
;
269 bool negotiate_spnego
= False
;
270 time_t t
= time(NULL
);
272 struct smbd_server_connection
*sconn
= req
->sconn
;
274 sconn
->smb1
.negprot
.encrypted_passwords
= lp_encrypted_passwords();
276 /* Check the flags field to see if this is Vista.
277 WinXP sets it and Vista does not. But we have to
278 distinguish from NT which doesn't set it either. */
280 if ( (req
->flags2
& FLAGS2_EXTENDED_SECURITY
) &&
281 ((req
->flags2
& FLAGS2_UNKNOWN_BIT4
) == 0) )
283 if (get_remote_arch() != RA_SAMBA
) {
284 set_remote_arch( RA_VISTA
);
288 reply_outbuf(req
,17,0);
290 /* do spnego in user level security if the client
291 supports it and we can do encrypted passwords */
293 if (sconn
->smb1
.negprot
.encrypted_passwords
&&
294 (lp_security() != SEC_SHARE
) &&
296 (req
->flags2
& FLAGS2_EXTENDED_SECURITY
)) {
297 negotiate_spnego
= True
;
298 capabilities
|= CAP_EXTENDED_SECURITY
;
299 add_to_common_flags2(FLAGS2_EXTENDED_SECURITY
);
300 /* Ensure FLAGS2_EXTENDED_SECURITY gets set in this reply
301 (already partially constructed. */
302 SSVAL(req
->outbuf
, smb_flg2
,
303 req
->flags2
| FLAGS2_EXTENDED_SECURITY
);
306 capabilities
|= CAP_NT_SMBS
|CAP_RPC_REMOTE_APIS
|CAP_UNICODE
;
308 if (lp_unix_extensions()) {
309 capabilities
|= CAP_UNIX
;
312 if (lp_large_readwrite() && (SMB_OFF_T_BITS
== 64))
313 capabilities
|= CAP_LARGE_READX
|CAP_LARGE_WRITEX
|CAP_W2K_SMBS
;
315 if (SMB_OFF_T_BITS
== 64)
316 capabilities
|= CAP_LARGE_FILES
;
318 if (lp_readraw() && lp_writeraw())
319 capabilities
|= CAP_RAW_MODE
;
321 if (lp_nt_status_support())
322 capabilities
|= CAP_STATUS32
;
325 capabilities
|= CAP_DFS
;
327 if (lp_security() >= SEC_USER
) {
328 secword
|= NEGOTIATE_SECURITY_USER_LEVEL
;
330 if (sconn
->smb1
.negprot
.encrypted_passwords
) {
331 secword
|= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE
;
334 if (lp_server_signing()) {
335 if (lp_security() >= SEC_USER
) {
336 secword
|= NEGOTIATE_SECURITY_SIGNATURES_ENABLED
;
337 /* No raw mode with smb signing. */
338 capabilities
&= ~CAP_RAW_MODE
;
339 if (lp_server_signing() == Required
)
340 secword
|=NEGOTIATE_SECURITY_SIGNATURES_REQUIRED
;
341 srv_set_signing_negotiated(sconn
);
343 DEBUG(0,("reply_nt1: smb signing is incompatible with share level security !\n"));
344 if (lp_server_signing() == Required
) {
345 exit_server_cleanly("reply_nt1: smb signing required and share level security selected.");
350 SSVAL(req
->outbuf
,smb_vwv0
,choice
);
351 SCVAL(req
->outbuf
,smb_vwv1
,secword
);
353 set_Protocol(PROTOCOL_NT1
);
355 SSVAL(req
->outbuf
,smb_vwv1
+1,lp_maxmux()); /* maxmpx */
356 SSVAL(req
->outbuf
,smb_vwv2
+1,1); /* num vcs */
357 SIVAL(req
->outbuf
,smb_vwv3
+1,
358 sconn
->smb1
.negprot
.max_recv
); /* max buffer. LOTS! */
359 SIVAL(req
->outbuf
,smb_vwv5
+1,0x10000); /* raw size. full 64k */
360 SIVAL(req
->outbuf
,smb_vwv7
+1,sys_getpid()); /* session key */
361 SIVAL(req
->outbuf
,smb_vwv9
+1,capabilities
); /* capabilities */
362 put_long_date((char *)req
->outbuf
+smb_vwv11
+1,t
);
363 SSVALS(req
->outbuf
,smb_vwv15
+1,set_server_zone_offset(t
)/60);
365 p
= q
= smb_buf(req
->outbuf
);
366 if (!negotiate_spnego
) {
367 /* Create a token value and add it to the outgoing packet. */
368 if (sconn
->smb1
.negprot
.encrypted_passwords
) {
370 /* note that we do not send a challenge at all if
371 we are using plaintext */
372 get_challenge(sconn
, chal
);
373 ret
= message_push_blob(
374 &req
->outbuf
, data_blob_const(chal
, sizeof(chal
)));
376 DEBUG(0, ("Could not push challenge\n"));
377 reply_nterror(req
, NT_STATUS_NO_MEMORY
);
380 SCVAL(req
->outbuf
, smb_vwv16
+1, ret
);
383 ret
= message_push_string(&req
->outbuf
, lp_workgroup(),
384 STR_UNICODE
|STR_TERMINATE
387 DEBUG(0, ("Could not push challenge\n"));
388 reply_nterror(req
, NT_STATUS_NO_MEMORY
);
391 DEBUG(3,("not using SPNEGO\n"));
393 DATA_BLOB spnego_blob
= negprot_spnego(req
, req
->sconn
);
395 if (spnego_blob
.data
== NULL
) {
396 reply_nterror(req
, NT_STATUS_NO_MEMORY
);
400 ret
= message_push_blob(&req
->outbuf
, spnego_blob
);
402 DEBUG(0, ("Could not push spnego blob\n"));
403 reply_nterror(req
, NT_STATUS_NO_MEMORY
);
407 data_blob_free(&spnego_blob
);
409 SCVAL(req
->outbuf
,smb_vwv16
+1, 0);
410 DEBUG(3,("using SPNEGO\n"));
413 SSVAL(req
->outbuf
,smb_vwv17
, p
- q
); /* length of challenge+domain
419 /* these are the protocol lists used for auto architecture detection:
422 protocol [PC NETWORK PROGRAM 1.0]
423 protocol [XENIX CORE]
424 protocol [MICROSOFT NETWORKS 1.03]
426 protocol [Windows for Workgroups 3.1a]
429 protocol [NT LM 0.12]
432 protocol [PC NETWORK PROGRAM 1.0]
433 protocol [XENIX CORE]
434 protocol [MICROSOFT NETWORKS 1.03]
436 protocol [Windows for Workgroups 3.1a]
439 protocol [NT LM 0.12]
442 protocol [PC NETWORK PROGRAM 1.0]
444 protocol [Windows for Workgroups 3.1a]
447 protocol [NT LM 0.12]
450 protocol [PC NETWORK PROGRAM 1.0]
452 protocol [Windows for Workgroups 3.1a]
455 protocol [NT LM 0.12]
459 protocol [PC NETWORK PROGRAM 1.0]
460 protocol [XENIX CORE]
467 * Modified to recognize the architecture of the remote machine better.
469 * This appears to be the matrix of which protocol is used by which
471 Protocol WfWg Win95 WinNT Win2K OS/2 Vista
472 PC NETWORK PROGRAM 1.0 1 1 1 1 1 1
474 MICROSOFT NETWORKS 3.0 2 2
476 MICROSOFT NETWORKS 1.03 3
479 Windows for Workgroups 3.1a 5 5 5 3 3
485 * tim@fsg.com 09/29/95
486 * Win2K added by matty 17/7/99
489 #define ARCH_WFWG 0x3 /* This is a fudge because WfWg is like Win95 */
490 #define ARCH_WIN95 0x2
491 #define ARCH_WINNT 0x4
492 #define ARCH_WIN2K 0xC /* Win2K is like NT */
493 #define ARCH_OS2 0x14 /* Again OS/2 is like NT */
494 #define ARCH_SAMBA 0x20
495 #define ARCH_CIFSFS 0x40
496 #define ARCH_VISTA 0x8C /* Vista is like XP/2K */
498 #define ARCH_ALL 0x7F
500 /* List of supported protocols, most desired first */
501 static const struct {
502 const char *proto_name
;
503 const char *short_name
;
504 void (*proto_reply_fn
)(struct smb_request
*req
, uint16 choice
);
506 } supported_protocols
[] = {
507 {"SMB 2.002", "SMB2", reply_smb2002
, PROTOCOL_SMB2
},
508 {"NT LANMAN 1.0", "NT1", reply_nt1
, PROTOCOL_NT1
},
509 {"NT LM 0.12", "NT1", reply_nt1
, PROTOCOL_NT1
},
510 {"POSIX 2", "NT1", reply_nt1
, PROTOCOL_NT1
},
511 {"LANMAN2.1", "LANMAN2", reply_lanman2
, PROTOCOL_LANMAN2
},
512 {"LM1.2X002", "LANMAN2", reply_lanman2
, PROTOCOL_LANMAN2
},
513 {"Samba", "LANMAN2", reply_lanman2
, PROTOCOL_LANMAN2
},
514 {"DOS LM1.2X002", "LANMAN2", reply_lanman2
, PROTOCOL_LANMAN2
},
515 {"LANMAN1.0", "LANMAN1", reply_lanman1
, PROTOCOL_LANMAN1
},
516 {"MICROSOFT NETWORKS 3.0", "LANMAN1", reply_lanman1
, PROTOCOL_LANMAN1
},
517 {"MICROSOFT NETWORKS 1.03", "COREPLUS", reply_coreplus
, PROTOCOL_COREPLUS
},
518 {"PC NETWORK PROGRAM 1.0", "CORE", reply_corep
, PROTOCOL_CORE
},
522 /****************************************************************************
524 conn POINTER CAN BE NULL HERE !
525 ****************************************************************************/
527 void reply_negprot(struct smb_request
*req
)
536 size_t converted_size
;
537 struct smbd_server_connection
*sconn
= req
->sconn
;
539 START_PROFILE(SMBnegprot
);
541 if (sconn
->smb1
.negprot
.done
) {
542 END_PROFILE(SMBnegprot
);
543 exit_server_cleanly("multiple negprot's are not permitted");
545 sconn
->smb1
.negprot
.done
= true;
547 if (req
->buflen
== 0) {
548 DEBUG(0, ("negprot got no protocols\n"));
549 reply_nterror(req
, NT_STATUS_INVALID_PARAMETER
);
550 END_PROFILE(SMBnegprot
);
554 if (req
->buf
[req
->buflen
-1] != '\0') {
555 DEBUG(0, ("negprot protocols not 0-terminated\n"));
556 reply_nterror(req
, NT_STATUS_INVALID_PARAMETER
);
557 END_PROFILE(SMBnegprot
);
561 p
= (const char *)req
->buf
+ 1;
566 while (smbreq_bufrem(req
, p
) > 0) {
570 tmp
= TALLOC_REALLOC_ARRAY(talloc_tos(), cliprotos
, char *,
573 DEBUG(0, ("talloc failed\n"));
574 TALLOC_FREE(cliprotos
);
575 reply_nterror(req
, NT_STATUS_NO_MEMORY
);
576 END_PROFILE(SMBnegprot
);
582 if (!pull_ascii_talloc(cliprotos
, &cliprotos
[num_cliprotos
], p
,
584 DEBUG(0, ("pull_ascii_talloc failed\n"));
585 TALLOC_FREE(cliprotos
);
586 reply_nterror(req
, NT_STATUS_NO_MEMORY
);
587 END_PROFILE(SMBnegprot
);
591 DEBUG(3, ("Requested protocol [%s]\n",
592 cliprotos
[num_cliprotos
]));
598 for (i
=0; i
<num_cliprotos
; i
++) {
599 if (strcsequal(cliprotos
[i
], "Windows for Workgroups 3.1a"))
600 arch
&= ( ARCH_WFWG
| ARCH_WIN95
| ARCH_WINNT
602 else if (strcsequal(cliprotos
[i
], "DOS LM1.2X002"))
603 arch
&= ( ARCH_WFWG
| ARCH_WIN95
);
604 else if (strcsequal(cliprotos
[i
], "DOS LANMAN2.1"))
605 arch
&= ( ARCH_WFWG
| ARCH_WIN95
);
606 else if (strcsequal(cliprotos
[i
], "NT LM 0.12"))
607 arch
&= ( ARCH_WIN95
| ARCH_WINNT
| ARCH_WIN2K
609 else if (strcsequal(cliprotos
[i
], "SMB 2.001"))
611 else if (strcsequal(cliprotos
[i
], "LANMAN2.1"))
612 arch
&= ( ARCH_WINNT
| ARCH_WIN2K
| ARCH_OS2
);
613 else if (strcsequal(cliprotos
[i
], "LM1.2X002"))
614 arch
&= ( ARCH_WINNT
| ARCH_WIN2K
| ARCH_OS2
);
615 else if (strcsequal(cliprotos
[i
], "MICROSOFT NETWORKS 1.03"))
617 else if (strcsequal(cliprotos
[i
], "XENIX CORE"))
618 arch
&= ( ARCH_WINNT
| ARCH_OS2
);
619 else if (strcsequal(cliprotos
[i
], "Samba")) {
622 } else if (strcsequal(cliprotos
[i
], "POSIX 2")) {
628 /* CIFSFS can send one arch only, NT LM 0.12. */
629 if (i
== 1 && (arch
& ARCH_CIFSFS
)) {
635 set_remote_arch(RA_CIFSFS
);
638 set_remote_arch(RA_SAMBA
);
641 set_remote_arch(RA_WFWG
);
644 set_remote_arch(RA_WIN95
);
647 if(req
->flags2
== FLAGS2_WIN2K_SIGNATURE
)
648 set_remote_arch(RA_WIN2K
);
650 set_remote_arch(RA_WINNT
);
653 /* Vista may have been set in the negprot so don't
655 if ( get_remote_arch() != RA_VISTA
)
656 set_remote_arch(RA_WIN2K
);
659 set_remote_arch(RA_VISTA
);
662 set_remote_arch(RA_OS2
);
665 set_remote_arch(RA_UNKNOWN
);
669 /* possibly reload - change of architecture */
670 reload_services(sconn
->msg_ctx
, True
);
672 /* moved from the netbios session setup code since we don't have that
673 when the client connects to port 445. Of course there is a small
674 window where we are listening to messages -- jerry */
676 serverid_register(sconn_server_id(sconn
),
677 FLAG_MSG_GENERAL
|FLAG_MSG_SMBD
678 |FLAG_MSG_PRINT_GENERAL
);
680 /* Check for protocols, most desirable first */
681 for (protocol
= 0; supported_protocols
[protocol
].proto_name
; protocol
++) {
683 if ((supported_protocols
[protocol
].protocol_level
<= lp_maxprotocol()) &&
684 (supported_protocols
[protocol
].protocol_level
>= lp_minprotocol()))
685 while (i
< num_cliprotos
) {
686 if (strequal(cliprotos
[i
],supported_protocols
[protocol
].proto_name
))
695 fstrcpy(remote_proto
,supported_protocols
[protocol
].short_name
);
696 reload_services(sconn
->msg_ctx
, True
);
697 supported_protocols
[protocol
].proto_reply_fn(req
, choice
);
698 DEBUG(3,("Selected protocol %s\n",supported_protocols
[protocol
].proto_name
));
700 DEBUG(0,("No protocol supported !\n"));
701 reply_outbuf(req
, 1, 0);
702 SSVAL(req
->outbuf
, smb_vwv0
, choice
);
705 DEBUG( 5, ( "negprot index=%d\n", choice
) );
707 if ((lp_server_signing() == Required
) && (get_Protocol() < PROTOCOL_NT1
)) {
708 exit_server_cleanly("SMB signing is required and "
709 "client negotiated a downlevel protocol");
712 TALLOC_FREE(cliprotos
);
713 END_PROFILE(SMBnegprot
);