2 Unix SMB/Netbios implementation.
4 handle NLTMSSP, server side
6 Copyright (C) Andrew Tridgell 2001
7 Copyright (C) Andrew Bartlett 2001-2003
8 Copyright (C) Andrew Bartlett 2005 (Updated from gensec).
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
26 static NTSTATUS
ntlmssp_client_initial(struct ntlmssp_state
*ntlmssp_state
,
27 DATA_BLOB reply
, DATA_BLOB
*next_request
);
28 static NTSTATUS
ntlmssp_server_negotiate(struct ntlmssp_state
*ntlmssp_state
,
29 const DATA_BLOB in
, DATA_BLOB
*out
);
30 static NTSTATUS
ntlmssp_client_challenge(struct ntlmssp_state
*ntlmssp_state
,
31 const DATA_BLOB reply
, DATA_BLOB
*next_request
);
32 static NTSTATUS
ntlmssp_server_auth(struct ntlmssp_state
*ntlmssp_state
,
33 const DATA_BLOB request
, DATA_BLOB
*reply
);
36 * Callbacks for NTLMSSP - for both client and server operating modes
40 static const struct ntlmssp_callbacks
{
41 enum NTLMSSP_ROLE role
;
42 enum NTLM_MESSAGE_TYPE ntlmssp_command
;
43 NTSTATUS (*fn
)(struct ntlmssp_state
*ntlmssp_state
,
44 DATA_BLOB in
, DATA_BLOB
*out
);
45 } ntlmssp_callbacks
[] = {
46 {NTLMSSP_CLIENT
, NTLMSSP_INITIAL
, ntlmssp_client_initial
},
47 {NTLMSSP_SERVER
, NTLMSSP_NEGOTIATE
, ntlmssp_server_negotiate
},
48 {NTLMSSP_CLIENT
, NTLMSSP_CHALLENGE
, ntlmssp_client_challenge
},
49 {NTLMSSP_SERVER
, NTLMSSP_AUTH
, ntlmssp_server_auth
},
50 {NTLMSSP_CLIENT
, NTLMSSP_UNKNOWN
, NULL
},
51 {NTLMSSP_SERVER
, NTLMSSP_UNKNOWN
, NULL
}
56 * Print out the NTLMSSP flags for debugging
57 * @param neg_flags The flags from the packet
60 void debug_ntlmssp_flags(uint32 neg_flags
)
62 DEBUG(3,("Got NTLMSSP neg_flags=0x%08x\n", neg_flags
));
64 if (neg_flags
& NTLMSSP_NEGOTIATE_UNICODE
)
65 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_UNICODE\n"));
66 if (neg_flags
& NTLMSSP_NEGOTIATE_OEM
)
67 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_OEM\n"));
68 if (neg_flags
& NTLMSSP_REQUEST_TARGET
)
69 DEBUGADD(4, (" NTLMSSP_REQUEST_TARGET\n"));
70 if (neg_flags
& NTLMSSP_NEGOTIATE_SIGN
)
71 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SIGN\n"));
72 if (neg_flags
& NTLMSSP_NEGOTIATE_SEAL
)
73 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SEAL\n"));
74 if (neg_flags
& NTLMSSP_NEGOTIATE_DATAGRAM_STYLE
)
75 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_DATAGRAM_STYLE\n"));
76 if (neg_flags
& NTLMSSP_NEGOTIATE_LM_KEY
)
77 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_LM_KEY\n"));
78 if (neg_flags
& NTLMSSP_NEGOTIATE_NETWARE
)
79 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NETWARE\n"));
80 if (neg_flags
& NTLMSSP_NEGOTIATE_NTLM
)
81 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NTLM\n"));
82 if (neg_flags
& NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED
)
83 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED\n"));
84 if (neg_flags
& NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED
)
85 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED\n"));
86 if (neg_flags
& NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL
)
87 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL\n"));
88 if (neg_flags
& NTLMSSP_NEGOTIATE_ALWAYS_SIGN
)
89 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_ALWAYS_SIGN\n"));
90 if (neg_flags
& NTLMSSP_CHAL_ACCEPT_RESPONSE
)
91 DEBUGADD(4, (" NTLMSSP_CHAL_ACCEPT_RESPONSE\n"));
92 if (neg_flags
& NTLMSSP_CHAL_NON_NT_SESSION_KEY
)
93 DEBUGADD(4, (" NTLMSSP_CHAL_NON_NT_SESSION_KEY\n"));
94 if (neg_flags
& NTLMSSP_NEGOTIATE_NTLM2
)
95 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NTLM2\n"));
96 if (neg_flags
& NTLMSSP_CHAL_TARGET_INFO
)
97 DEBUGADD(4, (" NTLMSSP_CHAL_TARGET_INFO\n"));
98 if (neg_flags
& NTLMSSP_NEGOTIATE_VERSION
)
99 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_VERSION\n"));
100 if (neg_flags
& NTLMSSP_NEGOTIATE_128
)
101 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_128\n"));
102 if (neg_flags
& NTLMSSP_NEGOTIATE_KEY_EXCH
)
103 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_KEY_EXCH\n"));
104 if (neg_flags
& NTLMSSP_NEGOTIATE_56
)
105 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_56\n"));
109 * Default challenge generation code.
113 static const uint8
*get_challenge(const struct ntlmssp_state
*ntlmssp_state
)
115 static uchar chal
[8];
116 generate_random_buffer(chal
, sizeof(chal
));
122 * Default 'we can set the challenge to anything we like' implementation
126 static bool may_set_challenge(const struct ntlmssp_state
*ntlmssp_state
)
132 * Default 'we can set the challenge to anything we like' implementation
134 * Does not actually do anything, as the value is always in the structure anyway.
138 static NTSTATUS
set_challenge(struct ntlmssp_state
*ntlmssp_state
, DATA_BLOB
*challenge
)
140 SMB_ASSERT(challenge
->length
== 8);
145 * Set a username on an NTLMSSP context - ensures it is talloc()ed
149 NTSTATUS
ntlmssp_set_username(NTLMSSP_STATE
*ntlmssp_state
, const char *user
)
151 ntlmssp_state
->user
= talloc_strdup(ntlmssp_state
, user
? user
: "" );
152 if (!ntlmssp_state
->user
) {
153 return NT_STATUS_NO_MEMORY
;
159 * Store NT and LM hashes on an NTLMSSP context - ensures they are talloc()ed
162 NTSTATUS
ntlmssp_set_hashes(NTLMSSP_STATE
*ntlmssp_state
,
163 const unsigned char lm_hash
[16],
164 const unsigned char nt_hash
[16])
166 ntlmssp_state
->lm_hash
= (unsigned char *)
167 TALLOC_MEMDUP(ntlmssp_state
, lm_hash
, 16);
168 ntlmssp_state
->nt_hash
= (unsigned char *)
169 TALLOC_MEMDUP(ntlmssp_state
, nt_hash
, 16);
170 if (!ntlmssp_state
->lm_hash
|| !ntlmssp_state
->nt_hash
) {
171 TALLOC_FREE(ntlmssp_state
->lm_hash
);
172 TALLOC_FREE(ntlmssp_state
->nt_hash
);
173 return NT_STATUS_NO_MEMORY
;
179 * Converts a password to the hashes on an NTLMSSP context.
182 NTSTATUS
ntlmssp_set_password(NTLMSSP_STATE
*ntlmssp_state
, const char *password
)
185 ntlmssp_state
->lm_hash
= NULL
;
186 ntlmssp_state
->nt_hash
= NULL
;
188 unsigned char lm_hash
[16];
189 unsigned char nt_hash
[16];
191 E_deshash(password
, lm_hash
);
192 E_md4hash(password
, nt_hash
);
193 return ntlmssp_set_hashes(ntlmssp_state
, lm_hash
, nt_hash
);
199 * Set a domain on an NTLMSSP context - ensures it is talloc()ed
202 NTSTATUS
ntlmssp_set_domain(NTLMSSP_STATE
*ntlmssp_state
, const char *domain
)
204 ntlmssp_state
->domain
= talloc_strdup(ntlmssp_state
,
205 domain
? domain
: "" );
206 if (!ntlmssp_state
->domain
) {
207 return NT_STATUS_NO_MEMORY
;
213 * Set a workstation on an NTLMSSP context - ensures it is talloc()ed
216 NTSTATUS
ntlmssp_set_workstation(NTLMSSP_STATE
*ntlmssp_state
, const char *workstation
)
218 ntlmssp_state
->workstation
= talloc_strdup(ntlmssp_state
, workstation
);
219 if (!ntlmssp_state
->workstation
) {
220 return NT_STATUS_NO_MEMORY
;
226 * Store a DATA_BLOB containing an NTLMSSP response, for use later.
227 * This copies the data blob
230 NTSTATUS
ntlmssp_store_response(NTLMSSP_STATE
*ntlmssp_state
,
233 ntlmssp_state
->stored_response
= data_blob_talloc(ntlmssp_state
,
240 * Request features for the NTLMSSP negotiation
242 * @param ntlmssp_state NTLMSSP state
243 * @param feature_list List of space seperated features requested from NTLMSSP.
245 void ntlmssp_want_feature_list(NTLMSSP_STATE
*ntlmssp_state
, char *feature_list
)
248 * We need to set this to allow a later SetPassword
249 * via the SAMR pipe to succeed. Strange.... We could
250 * also add NTLMSSP_NEGOTIATE_SEAL here. JRA.
252 if (in_list("NTLMSSP_FEATURE_SESSION_KEY", feature_list
, True
)) {
253 ntlmssp_state
->neg_flags
|= NTLMSSP_NEGOTIATE_SIGN
;
255 if (in_list("NTLMSSP_FEATURE_SIGN", feature_list
, True
)) {
256 ntlmssp_state
->neg_flags
|= NTLMSSP_NEGOTIATE_SIGN
;
258 if(in_list("NTLMSSP_FEATURE_SEAL", feature_list
, True
)) {
259 ntlmssp_state
->neg_flags
|= NTLMSSP_NEGOTIATE_SEAL
;
264 * Request a feature for the NTLMSSP negotiation
266 * @param ntlmssp_state NTLMSSP state
267 * @param feature Bit flag specifying the requested feature
269 void ntlmssp_want_feature(NTLMSSP_STATE
*ntlmssp_state
, uint32 feature
)
271 /* As per JRA's comment above */
272 if (feature
& NTLMSSP_FEATURE_SESSION_KEY
) {
273 ntlmssp_state
->neg_flags
|= NTLMSSP_NEGOTIATE_SIGN
;
275 if (feature
& NTLMSSP_FEATURE_SIGN
) {
276 ntlmssp_state
->neg_flags
|= NTLMSSP_NEGOTIATE_SIGN
;
278 if (feature
& NTLMSSP_FEATURE_SEAL
) {
279 ntlmssp_state
->neg_flags
|= NTLMSSP_NEGOTIATE_SEAL
;
284 * Next state function for the NTLMSSP state machine
286 * @param ntlmssp_state NTLMSSP State
287 * @param in The packet in from the NTLMSSP partner, as a DATA_BLOB
288 * @param out The reply, as an allocated DATA_BLOB, caller to free.
289 * @return Errors, NT_STATUS_MORE_PROCESSING_REQUIRED or NT_STATUS_OK.
292 NTSTATUS
ntlmssp_update(NTLMSSP_STATE
*ntlmssp_state
,
293 const DATA_BLOB in
, DATA_BLOB
*out
)
296 uint32 ntlmssp_command
;
299 if (ntlmssp_state
->expected_state
== NTLMSSP_DONE
) {
300 /* Called update after negotiations finished. */
301 DEBUG(1, ("Called NTLMSSP after state machine was 'done'\n"));
302 return NT_STATUS_INVALID_PARAMETER
;
305 *out
= data_blob_null
;
307 if (!in
.length
&& ntlmssp_state
->stored_response
.length
) {
308 input
= ntlmssp_state
->stored_response
;
310 /* we only want to read the stored response once - overwrite it */
311 ntlmssp_state
->stored_response
= data_blob_null
;
317 switch (ntlmssp_state
->role
) {
319 ntlmssp_command
= NTLMSSP_INITIAL
;
322 /* 'datagram' mode - no neg packet */
323 ntlmssp_command
= NTLMSSP_NEGOTIATE
;
327 if (!msrpc_parse(&input
, "Cd",
330 DEBUG(1, ("Failed to parse NTLMSSP packet, could not extract NTLMSSP command\n"));
331 dump_data(2, input
.data
, input
.length
);
332 return NT_STATUS_INVALID_PARAMETER
;
336 if (ntlmssp_command
!= ntlmssp_state
->expected_state
) {
337 DEBUG(1, ("got NTLMSSP command %u, expected %u\n", ntlmssp_command
, ntlmssp_state
->expected_state
));
338 return NT_STATUS_INVALID_PARAMETER
;
341 for (i
=0; ntlmssp_callbacks
[i
].fn
; i
++) {
342 if (ntlmssp_callbacks
[i
].role
== ntlmssp_state
->role
343 && ntlmssp_callbacks
[i
].ntlmssp_command
== ntlmssp_command
) {
344 return ntlmssp_callbacks
[i
].fn(ntlmssp_state
, input
, out
);
348 DEBUG(1, ("failed to find NTLMSSP callback for NTLMSSP mode %u, command %u\n",
349 ntlmssp_state
->role
, ntlmssp_command
));
351 return NT_STATUS_INVALID_PARAMETER
;
355 * End an NTLMSSP state machine
357 * @param ntlmssp_state NTLMSSP State, free()ed by this function
360 void ntlmssp_end(NTLMSSP_STATE
**ntlmssp_state
)
362 (*ntlmssp_state
)->ref_count
--;
364 if ((*ntlmssp_state
)->ref_count
== 0) {
365 data_blob_free(&(*ntlmssp_state
)->chal
);
366 data_blob_free(&(*ntlmssp_state
)->lm_resp
);
367 data_blob_free(&(*ntlmssp_state
)->nt_resp
);
368 TALLOC_FREE(*ntlmssp_state
);
371 *ntlmssp_state
= NULL
;
376 * Determine correct target name flags for reply, given server role
377 * and negotiated flags
379 * @param ntlmssp_state NTLMSSP State
380 * @param neg_flags The flags from the packet
381 * @param chal_flags The flags to be set in the reply packet
382 * @return The 'target name' string.
385 static const char *ntlmssp_target_name(struct ntlmssp_state
*ntlmssp_state
,
386 uint32 neg_flags
, uint32
*chal_flags
)
388 if (neg_flags
& NTLMSSP_REQUEST_TARGET
) {
389 *chal_flags
|= NTLMSSP_CHAL_TARGET_INFO
;
390 *chal_flags
|= NTLMSSP_REQUEST_TARGET
;
391 if (ntlmssp_state
->server_role
== ROLE_STANDALONE
) {
392 *chal_flags
|= NTLMSSP_TARGET_TYPE_SERVER
;
393 return ntlmssp_state
->get_global_myname();
395 *chal_flags
|= NTLMSSP_TARGET_TYPE_DOMAIN
;
396 return ntlmssp_state
->get_domain();
403 static void ntlmssp_handle_neg_flags(struct ntlmssp_state
*ntlmssp_state
,
404 uint32 neg_flags
, bool allow_lm
) {
405 if (neg_flags
& NTLMSSP_NEGOTIATE_UNICODE
) {
406 ntlmssp_state
->neg_flags
|= NTLMSSP_NEGOTIATE_UNICODE
;
407 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_OEM
;
408 ntlmssp_state
->unicode
= True
;
410 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_UNICODE
;
411 ntlmssp_state
->neg_flags
|= NTLMSSP_NEGOTIATE_OEM
;
412 ntlmssp_state
->unicode
= False
;
415 if ((neg_flags
& NTLMSSP_NEGOTIATE_LM_KEY
) && allow_lm
) {
416 /* other end forcing us to use LM */
417 ntlmssp_state
->neg_flags
|= NTLMSSP_NEGOTIATE_LM_KEY
;
418 ntlmssp_state
->use_ntlmv2
= False
;
420 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_LM_KEY
;
423 if (!(neg_flags
& NTLMSSP_NEGOTIATE_ALWAYS_SIGN
)) {
424 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_ALWAYS_SIGN
;
427 if (!(neg_flags
& NTLMSSP_NEGOTIATE_NTLM2
)) {
428 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_NTLM2
;
431 if (!(neg_flags
& NTLMSSP_NEGOTIATE_128
)) {
432 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_128
;
435 if (!(neg_flags
& NTLMSSP_NEGOTIATE_56
)) {
436 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_56
;
439 if (!(neg_flags
& NTLMSSP_NEGOTIATE_KEY_EXCH
)) {
440 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_KEY_EXCH
;
443 if (!(neg_flags
& NTLMSSP_NEGOTIATE_SIGN
)) {
444 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_SIGN
;
447 if (!(neg_flags
& NTLMSSP_NEGOTIATE_SEAL
)) {
448 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_SEAL
;
451 /* Woop Woop - unknown flag for Windows compatibility...
452 What does this really do ? JRA. */
453 if (!(neg_flags
& NTLMSSP_NEGOTIATE_VERSION
)) {
454 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_VERSION
;
457 if ((neg_flags
& NTLMSSP_REQUEST_TARGET
)) {
458 ntlmssp_state
->neg_flags
|= NTLMSSP_REQUEST_TARGET
;
463 Weaken NTLMSSP keys to cope with down-level clients and servers.
465 We probably should have some parameters to control this, but as
466 it only occours for LM_KEY connections, and this is controlled
467 by the client lanman auth/lanman auth parameters, it isn't too bad.
470 DATA_BLOB
ntlmssp_weaken_keys(NTLMSSP_STATE
*ntlmssp_state
, TALLOC_CTX
*mem_ctx
)
472 DATA_BLOB weakened_key
= data_blob_talloc(mem_ctx
,
473 ntlmssp_state
->session_key
.data
,
474 ntlmssp_state
->session_key
.length
);
476 /* Nothing to weaken. We certainly don't want to 'extend' the length... */
477 if (weakened_key
.length
< 16) {
478 /* perhaps there was no key? */
482 /* Key weakening not performed on the master key for NTLM2
483 and does not occour for NTLM1. Therefore we only need
484 to do this for the LM_KEY.
487 if (ntlmssp_state
->neg_flags
& NTLMSSP_NEGOTIATE_LM_KEY
) {
488 /* LM key doesn't support 128 bit crypto, so this is
489 * the best we can do. If you negotiate 128 bit, but
490 * not 56, you end up with 40 bit... */
491 if (ntlmssp_state
->neg_flags
& NTLMSSP_NEGOTIATE_56
) {
492 weakened_key
.data
[7] = 0xa0;
493 } else { /* forty bits */
494 weakened_key
.data
[5] = 0xe5;
495 weakened_key
.data
[6] = 0x38;
496 weakened_key
.data
[7] = 0xb0;
498 weakened_key
.length
= 8;
504 * Next state function for the Negotiate packet
506 * @param ntlmssp_state NTLMSSP State
507 * @param request The request, as a DATA_BLOB
508 * @param request The reply, as an allocated DATA_BLOB, caller to free.
509 * @return Errors or MORE_PROCESSING_REQUIRED if a reply is sent.
512 static NTSTATUS
ntlmssp_server_negotiate(struct ntlmssp_state
*ntlmssp_state
,
513 const DATA_BLOB request
, DATA_BLOB
*reply
)
515 DATA_BLOB struct_blob
;
517 char *dnsdomname
= NULL
;
518 uint32 neg_flags
= 0;
519 uint32 ntlmssp_command
, chal_flags
;
520 const uint8
*cryptkey
;
521 const char *target_name
;
523 /* parse the NTLMSSP packet */
525 file_save("ntlmssp_negotiate.dat", request
.data
, request
.length
);
528 if (request
.length
) {
529 if ((request
.length
< 16) || !msrpc_parse(&request
, "Cdd",
533 DEBUG(1, ("ntlmssp_server_negotiate: failed to parse NTLMSSP Negotiate of length %u\n",
534 (unsigned int)request
.length
));
535 dump_data(2, request
.data
, request
.length
);
536 return NT_STATUS_INVALID_PARAMETER
;
538 debug_ntlmssp_flags(neg_flags
);
541 ntlmssp_handle_neg_flags(ntlmssp_state
, neg_flags
, lp_lanman_auth());
543 /* Ask our caller what challenge they would like in the packet */
544 cryptkey
= ntlmssp_state
->get_challenge(ntlmssp_state
);
546 /* Check if we may set the challenge */
547 if (!ntlmssp_state
->may_set_challenge(ntlmssp_state
)) {
548 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_NTLM2
;
551 /* The flags we send back are not just the negotiated flags,
552 * they are also 'what is in this packet'. Therfore, we
553 * operate on 'chal_flags' from here on
556 chal_flags
= ntlmssp_state
->neg_flags
;
558 /* get the right name to fill in as 'target' */
559 target_name
= ntlmssp_target_name(ntlmssp_state
,
560 neg_flags
, &chal_flags
);
561 if (target_name
== NULL
)
562 return NT_STATUS_INVALID_PARAMETER
;
564 ntlmssp_state
->chal
= data_blob_talloc(ntlmssp_state
, cryptkey
, 8);
565 ntlmssp_state
->internal_chal
= data_blob_talloc(ntlmssp_state
,
568 /* This should be a 'netbios domain -> DNS domain' mapping */
569 dnsdomname
= get_mydnsdomname(ntlmssp_state
);
571 dnsdomname
= talloc_strdup(ntlmssp_state
, "");
574 return NT_STATUS_NO_MEMORY
;
576 strlower_m(dnsdomname
);
578 dnsname
= get_mydnsfullname();
583 /* This creates the 'blob' of names that appears at the end of the packet */
584 if (chal_flags
& NTLMSSP_CHAL_TARGET_INFO
)
586 msrpc_gen(&struct_blob
, "aaaaa",
587 NTLMSSP_NAME_TYPE_DOMAIN
, target_name
,
588 NTLMSSP_NAME_TYPE_SERVER
, ntlmssp_state
->get_global_myname(),
589 NTLMSSP_NAME_TYPE_DOMAIN_DNS
, dnsdomname
,
590 NTLMSSP_NAME_TYPE_SERVER_DNS
, dnsname
,
593 struct_blob
= data_blob_null
;
597 /* Marshel the packet in the right format, be it unicode or ASCII */
598 const char *gen_string
;
599 if (ntlmssp_state
->unicode
) {
600 gen_string
= "CdUdbddB";
602 gen_string
= "CdAdbddB";
605 msrpc_gen(reply
, gen_string
,
612 struct_blob
.data
, struct_blob
.length
);
615 data_blob_free(&struct_blob
);
617 ntlmssp_state
->expected_state
= NTLMSSP_AUTH
;
619 return NT_STATUS_MORE_PROCESSING_REQUIRED
;
623 * Next state function for the Authenticate packet
625 * @param ntlmssp_state NTLMSSP State
626 * @param request The request, as a DATA_BLOB
627 * @param request The reply, as an allocated DATA_BLOB, caller to free.
628 * @return Errors or NT_STATUS_OK.
631 static NTSTATUS
ntlmssp_server_auth(struct ntlmssp_state
*ntlmssp_state
,
632 const DATA_BLOB request
, DATA_BLOB
*reply
)
634 DATA_BLOB encrypted_session_key
= data_blob_null
;
635 DATA_BLOB user_session_key
= data_blob_null
;
636 DATA_BLOB lm_session_key
= data_blob_null
;
637 DATA_BLOB session_key
= data_blob_null
;
638 uint32 ntlmssp_command
, auth_flags
;
639 NTSTATUS nt_status
= NT_STATUS_OK
;
642 bool doing_ntlm2
= False
;
644 uchar session_nonce
[16];
645 uchar session_nonce_hash
[16];
647 const char *parse_string
;
650 char *workstation
= NULL
;
652 /* parse the NTLMSSP packet */
653 *reply
= data_blob_null
;
656 file_save("ntlmssp_auth.dat", request
.data
, request
.length
);
659 if (ntlmssp_state
->unicode
) {
660 parse_string
= "CdBBUUUBd";
662 parse_string
= "CdBBAAABd";
665 data_blob_free(&ntlmssp_state
->lm_resp
);
666 data_blob_free(&ntlmssp_state
->nt_resp
);
668 ntlmssp_state
->user
= NULL
;
669 ntlmssp_state
->domain
= NULL
;
670 ntlmssp_state
->workstation
= NULL
;
672 /* now the NTLMSSP encoded auth hashes */
673 if (!msrpc_parse(&request
, parse_string
,
676 &ntlmssp_state
->lm_resp
,
677 &ntlmssp_state
->nt_resp
,
681 &encrypted_session_key
,
685 SAFE_FREE(workstation
);
686 data_blob_free(&encrypted_session_key
);
689 /* Try again with a shorter string (Win9X truncates this packet) */
690 if (ntlmssp_state
->unicode
) {
691 parse_string
= "CdBBUUU";
693 parse_string
= "CdBBAAA";
696 /* now the NTLMSSP encoded auth hashes */
697 if (!msrpc_parse(&request
, parse_string
,
700 &ntlmssp_state
->lm_resp
,
701 &ntlmssp_state
->nt_resp
,
705 DEBUG(1, ("ntlmssp_server_auth: failed to parse NTLMSSP (tried both formats):\n"));
706 dump_data(2, request
.data
, request
.length
);
709 SAFE_FREE(workstation
);
711 return NT_STATUS_INVALID_PARAMETER
;
716 ntlmssp_handle_neg_flags(ntlmssp_state
, auth_flags
, lp_lanman_auth());
718 if (!NT_STATUS_IS_OK(nt_status
= ntlmssp_set_domain(ntlmssp_state
, domain
))) {
721 SAFE_FREE(workstation
);
722 data_blob_free(&encrypted_session_key
);
726 if (!NT_STATUS_IS_OK(nt_status
= ntlmssp_set_username(ntlmssp_state
, user
))) {
729 SAFE_FREE(workstation
);
730 data_blob_free(&encrypted_session_key
);
734 if (!NT_STATUS_IS_OK(nt_status
= ntlmssp_set_workstation(ntlmssp_state
, workstation
))) {
737 SAFE_FREE(workstation
);
738 data_blob_free(&encrypted_session_key
);
744 SAFE_FREE(workstation
);
746 DEBUG(3,("Got user=[%s] domain=[%s] workstation=[%s] len1=%lu len2=%lu\n",
747 ntlmssp_state
->user
, ntlmssp_state
->domain
, ntlmssp_state
->workstation
, (unsigned long)ntlmssp_state
->lm_resp
.length
, (unsigned long)ntlmssp_state
->nt_resp
.length
));
750 file_save("nthash1.dat", &ntlmssp_state
->nt_resp
.data
, &ntlmssp_state
->nt_resp
.length
);
751 file_save("lmhash1.dat", &ntlmssp_state
->lm_resp
.data
, &ntlmssp_state
->lm_resp
.length
);
754 /* NTLM2 uses a 'challenge' that is made of up both the server challenge, and a
757 However, the NTLM2 flag may still be set for the real NTLMv2 logins, be careful.
759 if (ntlmssp_state
->neg_flags
& NTLMSSP_NEGOTIATE_NTLM2
) {
760 if (ntlmssp_state
->nt_resp
.length
== 24 && ntlmssp_state
->lm_resp
.length
== 24) {
761 struct MD5Context md5_session_nonce_ctx
;
762 SMB_ASSERT(ntlmssp_state
->internal_chal
.data
&& ntlmssp_state
->internal_chal
.length
== 8);
766 memcpy(session_nonce
, ntlmssp_state
->internal_chal
.data
, 8);
767 memcpy(&session_nonce
[8], ntlmssp_state
->lm_resp
.data
, 8);
769 MD5Init(&md5_session_nonce_ctx
);
770 MD5Update(&md5_session_nonce_ctx
, session_nonce
, 16);
771 MD5Final(session_nonce_hash
, &md5_session_nonce_ctx
);
773 ntlmssp_state
->chal
= data_blob_talloc(
774 ntlmssp_state
, session_nonce_hash
, 8);
776 /* LM response is no longer useful */
777 data_blob_free(&ntlmssp_state
->lm_resp
);
779 /* We changed the effective challenge - set it */
780 if (!NT_STATUS_IS_OK(nt_status
= ntlmssp_state
->set_challenge(ntlmssp_state
, &ntlmssp_state
->chal
))) {
781 data_blob_free(&encrypted_session_key
);
785 /* LM Key is incompatible. */
786 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_LM_KEY
;
791 * Note we don't check here for NTLMv2 auth settings. If NTLMv2 auth
792 * is required (by "ntlm auth = no" and "lm auth = no" being set in the
793 * smb.conf file) and no NTLMv2 response was sent then the password check
794 * will fail here. JRA.
797 /* Finally, actually ask if the password is OK */
799 if (!NT_STATUS_IS_OK(nt_status
= ntlmssp_state
->check_password(ntlmssp_state
,
800 &user_session_key
, &lm_session_key
))) {
801 data_blob_free(&encrypted_session_key
);
805 dump_data_pw("NT session key:\n", user_session_key
.data
, user_session_key
.length
);
806 dump_data_pw("LM first-8:\n", lm_session_key
.data
, lm_session_key
.length
);
808 /* Handle the different session key derivation for NTLM2 */
810 if (user_session_key
.data
&& user_session_key
.length
== 16) {
811 session_key
= data_blob_talloc(ntlmssp_state
,
813 hmac_md5(user_session_key
.data
, session_nonce
,
814 sizeof(session_nonce
), session_key
.data
);
815 DEBUG(10,("ntlmssp_server_auth: Created NTLM2 session key.\n"));
816 dump_data_pw("NTLM2 session key:\n", session_key
.data
, session_key
.length
);
819 DEBUG(10,("ntlmssp_server_auth: Failed to create NTLM2 session key.\n"));
820 session_key
= data_blob_null
;
822 } else if (ntlmssp_state
->neg_flags
& NTLMSSP_NEGOTIATE_LM_KEY
) {
823 if (lm_session_key
.data
&& lm_session_key
.length
>= 8) {
824 if (ntlmssp_state
->lm_resp
.data
&& ntlmssp_state
->lm_resp
.length
== 24) {
825 session_key
= data_blob_talloc(ntlmssp_state
,
827 if (session_key
.data
== NULL
) {
828 return NT_STATUS_NO_MEMORY
;
830 SMBsesskeygen_lm_sess_key(lm_session_key
.data
, ntlmssp_state
->lm_resp
.data
,
832 DEBUG(10,("ntlmssp_server_auth: Created NTLM session key.\n"));
836 session_key
= data_blob_talloc(
837 ntlmssp_state
, NULL
, 16);
838 if (session_key
.data
== NULL
) {
839 return NT_STATUS_NO_MEMORY
;
841 SMBsesskeygen_lm_sess_key(
842 lm_session_key
.data
, zeros
,
845 dump_data_pw("LM session key:\n", session_key
.data
,
848 DEBUG(10,("ntlmssp_server_auth: Failed to create NTLM session key.\n"));
849 session_key
= data_blob_null
;
851 } else if (user_session_key
.data
) {
852 session_key
= user_session_key
;
853 DEBUG(10,("ntlmssp_server_auth: Using unmodified nt session key.\n"));
854 dump_data_pw("unmodified session key:\n", session_key
.data
, session_key
.length
);
855 } else if (lm_session_key
.data
) {
856 session_key
= lm_session_key
;
857 DEBUG(10,("ntlmssp_server_auth: Using unmodified lm session key.\n"));
858 dump_data_pw("unmodified session key:\n", session_key
.data
, session_key
.length
);
860 DEBUG(10,("ntlmssp_server_auth: Failed to create unmodified session key.\n"));
861 session_key
= data_blob_null
;
864 /* With KEY_EXCH, the client supplies the proposed session key,
865 but encrypts it with the long-term key */
866 if (ntlmssp_state
->neg_flags
& NTLMSSP_NEGOTIATE_KEY_EXCH
) {
867 if (!encrypted_session_key
.data
|| encrypted_session_key
.length
!= 16) {
868 data_blob_free(&encrypted_session_key
);
869 DEBUG(1, ("Client-supplied KEY_EXCH session key was of invalid length (%u)!\n",
870 (unsigned int)encrypted_session_key
.length
));
871 return NT_STATUS_INVALID_PARAMETER
;
872 } else if (!session_key
.data
|| session_key
.length
!= 16) {
873 DEBUG(5, ("server session key is invalid (len == %u), cannot do KEY_EXCH!\n",
874 (unsigned int)session_key
.length
));
875 ntlmssp_state
->session_key
= session_key
;
877 dump_data_pw("KEY_EXCH session key (enc):\n", encrypted_session_key
.data
, encrypted_session_key
.length
);
878 SamOEMhash(encrypted_session_key
.data
,
880 encrypted_session_key
.length
);
881 ntlmssp_state
->session_key
= data_blob_talloc(
882 ntlmssp_state
, encrypted_session_key
.data
,
883 encrypted_session_key
.length
);
884 dump_data_pw("KEY_EXCH session key:\n", encrypted_session_key
.data
,
885 encrypted_session_key
.length
);
888 ntlmssp_state
->session_key
= session_key
;
891 if (!NT_STATUS_IS_OK(nt_status
)) {
892 ntlmssp_state
->session_key
= data_blob_null
;
893 } else if (ntlmssp_state
->session_key
.length
) {
894 nt_status
= ntlmssp_sign_init(ntlmssp_state
);
897 data_blob_free(&encrypted_session_key
);
899 /* Only one authentication allowed per server state. */
900 ntlmssp_state
->expected_state
= NTLMSSP_DONE
;
906 * Create an NTLMSSP state machine
908 * @param ntlmssp_state NTLMSSP State, allocated by this function
911 NTSTATUS
ntlmssp_server_start(NTLMSSP_STATE
**ntlmssp_state
)
913 *ntlmssp_state
= TALLOC_ZERO_P(NULL
, NTLMSSP_STATE
);
914 if (!*ntlmssp_state
) {
915 DEBUG(0,("ntlmssp_server_start: talloc failed!\n"));
916 talloc_destroy(*ntlmssp_state
);
917 return NT_STATUS_NO_MEMORY
;
920 (*ntlmssp_state
)->role
= NTLMSSP_SERVER
;
922 (*ntlmssp_state
)->get_challenge
= get_challenge
;
923 (*ntlmssp_state
)->set_challenge
= set_challenge
;
924 (*ntlmssp_state
)->may_set_challenge
= may_set_challenge
;
926 (*ntlmssp_state
)->get_global_myname
= global_myname
;
927 (*ntlmssp_state
)->get_domain
= lp_workgroup
;
928 (*ntlmssp_state
)->server_role
= ROLE_DOMAIN_MEMBER
; /* a good default */
930 (*ntlmssp_state
)->expected_state
= NTLMSSP_NEGOTIATE
;
932 (*ntlmssp_state
)->ref_count
= 1;
934 (*ntlmssp_state
)->neg_flags
=
935 NTLMSSP_NEGOTIATE_128
|
936 NTLMSSP_NEGOTIATE_56
|
937 NTLMSSP_NEGOTIATE_VERSION
|
938 NTLMSSP_NEGOTIATE_ALWAYS_SIGN
|
939 NTLMSSP_NEGOTIATE_NTLM
|
940 NTLMSSP_NEGOTIATE_NTLM2
|
941 NTLMSSP_NEGOTIATE_KEY_EXCH
|
942 NTLMSSP_NEGOTIATE_SIGN
|
943 NTLMSSP_NEGOTIATE_SEAL
;
948 /*********************************************************************
950 *********************************************************************/
953 * Next state function for the Initial packet
955 * @param ntlmssp_state NTLMSSP State
956 * @param request The request, as a DATA_BLOB. reply.data must be NULL
957 * @param request The reply, as an allocated DATA_BLOB, caller to free.
958 * @return Errors or NT_STATUS_OK.
961 static NTSTATUS
ntlmssp_client_initial(struct ntlmssp_state
*ntlmssp_state
,
962 DATA_BLOB reply
, DATA_BLOB
*next_request
)
964 if (ntlmssp_state
->unicode
) {
965 ntlmssp_state
->neg_flags
|= NTLMSSP_NEGOTIATE_UNICODE
;
967 ntlmssp_state
->neg_flags
|= NTLMSSP_NEGOTIATE_OEM
;
970 if (ntlmssp_state
->use_ntlmv2
) {
971 ntlmssp_state
->neg_flags
|= NTLMSSP_NEGOTIATE_NTLM2
;
974 /* generate the ntlmssp negotiate packet */
975 msrpc_gen(next_request
, "CddAA",
978 ntlmssp_state
->neg_flags
,
979 ntlmssp_state
->get_domain(),
980 ntlmssp_state
->get_global_myname());
982 ntlmssp_state
->expected_state
= NTLMSSP_CHALLENGE
;
984 return NT_STATUS_MORE_PROCESSING_REQUIRED
;
988 * Next state function for the Challenge Packet. Generate an auth packet.
990 * @param ntlmssp_state NTLMSSP State
991 * @param request The request, as a DATA_BLOB. reply.data must be NULL
992 * @param request The reply, as an allocated DATA_BLOB, caller to free.
993 * @return Errors or NT_STATUS_OK.
996 static NTSTATUS
ntlmssp_client_challenge(struct ntlmssp_state
*ntlmssp_state
,
997 const DATA_BLOB reply
, DATA_BLOB
*next_request
)
999 uint32 chal_flags
, ntlmssp_command
, unkn1
, unkn2
;
1000 DATA_BLOB server_domain_blob
;
1001 DATA_BLOB challenge_blob
;
1002 DATA_BLOB struct_blob
= data_blob_null
;
1003 char *server_domain
;
1004 const char *chal_parse_string
;
1005 const char *auth_gen_string
;
1006 DATA_BLOB lm_response
= data_blob_null
;
1007 DATA_BLOB nt_response
= data_blob_null
;
1008 DATA_BLOB session_key
= data_blob_null
;
1009 DATA_BLOB encrypted_session_key
= data_blob_null
;
1010 NTSTATUS nt_status
= NT_STATUS_OK
;
1012 if (!msrpc_parse(&reply
, "CdBd",
1015 &server_domain_blob
,
1017 DEBUG(1, ("Failed to parse the NTLMSSP Challenge: (#1)\n"));
1018 dump_data(2, reply
.data
, reply
.length
);
1020 return NT_STATUS_INVALID_PARAMETER
;
1023 data_blob_free(&server_domain_blob
);
1025 DEBUG(3, ("Got challenge flags:\n"));
1026 debug_ntlmssp_flags(chal_flags
);
1028 ntlmssp_handle_neg_flags(ntlmssp_state
, chal_flags
, lp_client_lanman_auth());
1030 if (ntlmssp_state
->unicode
) {
1031 if (chal_flags
& NTLMSSP_CHAL_TARGET_INFO
) {
1032 chal_parse_string
= "CdUdbddB";
1034 chal_parse_string
= "CdUdbdd";
1036 auth_gen_string
= "CdBBUUUBd";
1038 if (chal_flags
& NTLMSSP_CHAL_TARGET_INFO
) {
1039 chal_parse_string
= "CdAdbddB";
1041 chal_parse_string
= "CdAdbdd";
1044 auth_gen_string
= "CdBBAAABd";
1047 DEBUG(3, ("NTLMSSP: Set final flags:\n"));
1048 debug_ntlmssp_flags(ntlmssp_state
->neg_flags
);
1050 if (!msrpc_parse(&reply
, chal_parse_string
,
1058 DEBUG(1, ("Failed to parse the NTLMSSP Challenge: (#2)\n"));
1059 dump_data(2, reply
.data
, reply
.length
);
1060 return NT_STATUS_INVALID_PARAMETER
;
1063 ntlmssp_state
->server_domain
= talloc_strdup(ntlmssp_state
,
1066 SAFE_FREE(server_domain
);
1067 if (challenge_blob
.length
!= 8) {
1068 data_blob_free(&struct_blob
);
1069 return NT_STATUS_INVALID_PARAMETER
;
1072 if (!ntlmssp_state
->nt_hash
|| !ntlmssp_state
->lm_hash
) {
1074 /* do nothing - blobs are zero length */
1078 /* session key is all zeros */
1079 session_key
= data_blob_talloc(ntlmssp_state
, zeros
, 16);
1081 /* not doing NLTM2 without a password */
1082 ntlmssp_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_NTLM2
;
1083 } else if (ntlmssp_state
->use_ntlmv2
) {
1085 if (!struct_blob
.length
) {
1086 /* be lazy, match win2k - we can't do NTLMv2 without it */
1087 DEBUG(1, ("Server did not provide 'target information', required for NTLMv2\n"));
1088 return NT_STATUS_INVALID_PARAMETER
;
1091 /* TODO: if the remote server is standalone, then we should replace 'domain'
1092 with the server name as supplied above */
1094 if (!SMBNTLMv2encrypt_hash(ntlmssp_state
->user
,
1095 ntlmssp_state
->domain
,
1096 ntlmssp_state
->nt_hash
, &challenge_blob
,
1098 &lm_response
, &nt_response
, &session_key
)) {
1099 data_blob_free(&challenge_blob
);
1100 data_blob_free(&struct_blob
);
1101 return NT_STATUS_NO_MEMORY
;
1103 } else if (ntlmssp_state
->neg_flags
& NTLMSSP_NEGOTIATE_NTLM2
) {
1104 struct MD5Context md5_session_nonce_ctx
;
1105 uchar session_nonce
[16];
1106 uchar session_nonce_hash
[16];
1107 uchar user_session_key
[16];
1109 lm_response
= data_blob_talloc(ntlmssp_state
, NULL
, 24);
1110 generate_random_buffer(lm_response
.data
, 8);
1111 memset(lm_response
.data
+8, 0, 16);
1113 memcpy(session_nonce
, challenge_blob
.data
, 8);
1114 memcpy(&session_nonce
[8], lm_response
.data
, 8);
1116 MD5Init(&md5_session_nonce_ctx
);
1117 MD5Update(&md5_session_nonce_ctx
, challenge_blob
.data
, 8);
1118 MD5Update(&md5_session_nonce_ctx
, lm_response
.data
, 8);
1119 MD5Final(session_nonce_hash
, &md5_session_nonce_ctx
);
1121 DEBUG(5, ("NTLMSSP challenge set by NTLM2\n"));
1122 DEBUG(5, ("challenge is: \n"));
1123 dump_data(5, session_nonce_hash
, 8);
1125 nt_response
= data_blob_talloc(ntlmssp_state
, NULL
, 24);
1126 SMBNTencrypt_hash(ntlmssp_state
->nt_hash
,
1130 session_key
= data_blob_talloc(ntlmssp_state
, NULL
, 16);
1132 SMBsesskeygen_ntv1(ntlmssp_state
->nt_hash
, NULL
, user_session_key
);
1133 hmac_md5(user_session_key
, session_nonce
, sizeof(session_nonce
), session_key
.data
);
1134 dump_data_pw("NTLM2 session key:\n", session_key
.data
, session_key
.length
);
1136 /* lanman auth is insecure, it may be disabled */
1137 if (lp_client_lanman_auth()) {
1138 lm_response
= data_blob_talloc(ntlmssp_state
,
1140 SMBencrypt_hash(ntlmssp_state
->lm_hash
,challenge_blob
.data
,
1144 nt_response
= data_blob_talloc(ntlmssp_state
, NULL
, 24);
1145 SMBNTencrypt_hash(ntlmssp_state
->nt_hash
,challenge_blob
.data
,
1148 session_key
= data_blob_talloc(ntlmssp_state
, NULL
, 16);
1149 if ((ntlmssp_state
->neg_flags
& NTLMSSP_NEGOTIATE_LM_KEY
)
1150 && lp_client_lanman_auth()) {
1151 SMBsesskeygen_lm_sess_key(ntlmssp_state
->lm_hash
, lm_response
.data
,
1153 dump_data_pw("LM session key\n", session_key
.data
, session_key
.length
);
1155 SMBsesskeygen_ntv1(ntlmssp_state
->nt_hash
, NULL
, session_key
.data
);
1156 dump_data_pw("NT session key:\n", session_key
.data
, session_key
.length
);
1159 data_blob_free(&struct_blob
);
1161 /* Key exchange encryptes a new client-generated session key with
1162 the password-derived key */
1163 if (ntlmssp_state
->neg_flags
& NTLMSSP_NEGOTIATE_KEY_EXCH
) {
1164 /* Make up a new session key */
1165 uint8 client_session_key
[16];
1166 generate_random_buffer(client_session_key
, sizeof(client_session_key
));
1168 /* Encrypt the new session key with the old one */
1169 encrypted_session_key
= data_blob(client_session_key
, sizeof(client_session_key
));
1170 dump_data_pw("KEY_EXCH session key:\n", encrypted_session_key
.data
, encrypted_session_key
.length
);
1171 SamOEMhash(encrypted_session_key
.data
, session_key
.data
, encrypted_session_key
.length
);
1172 dump_data_pw("KEY_EXCH session key (enc):\n", encrypted_session_key
.data
, encrypted_session_key
.length
);
1174 /* Mark the new session key as the 'real' session key */
1175 data_blob_free(&session_key
);
1176 session_key
= data_blob_talloc(ntlmssp_state
,
1178 sizeof(client_session_key
));
1181 /* this generates the actual auth packet */
1182 if (!msrpc_gen(next_request
, auth_gen_string
,
1185 lm_response
.data
, lm_response
.length
,
1186 nt_response
.data
, nt_response
.length
,
1187 ntlmssp_state
->domain
,
1188 ntlmssp_state
->user
,
1189 ntlmssp_state
->get_global_myname(),
1190 encrypted_session_key
.data
, encrypted_session_key
.length
,
1191 ntlmssp_state
->neg_flags
)) {
1193 return NT_STATUS_NO_MEMORY
;
1196 data_blob_free(&encrypted_session_key
);
1198 data_blob_free(&ntlmssp_state
->chal
);
1200 ntlmssp_state
->session_key
= session_key
;
1202 ntlmssp_state
->chal
= challenge_blob
;
1203 ntlmssp_state
->lm_resp
= lm_response
;
1204 ntlmssp_state
->nt_resp
= nt_response
;
1206 ntlmssp_state
->expected_state
= NTLMSSP_DONE
;
1208 if (!NT_STATUS_IS_OK(nt_status
= ntlmssp_sign_init(ntlmssp_state
))) {
1209 DEBUG(1, ("Could not setup NTLMSSP signing/sealing system (error was: %s)\n", nt_errstr(nt_status
)));
1215 NTSTATUS
ntlmssp_client_start(NTLMSSP_STATE
**ntlmssp_state
)
1217 *ntlmssp_state
= TALLOC_ZERO_P(NULL
, NTLMSSP_STATE
);
1218 if (!*ntlmssp_state
) {
1219 DEBUG(0,("ntlmssp_client_start: talloc failed!\n"));
1220 talloc_destroy(*ntlmssp_state
);
1221 return NT_STATUS_NO_MEMORY
;
1224 (*ntlmssp_state
)->role
= NTLMSSP_CLIENT
;
1226 (*ntlmssp_state
)->get_global_myname
= global_myname
;
1227 (*ntlmssp_state
)->get_domain
= lp_workgroup
;
1229 (*ntlmssp_state
)->unicode
= True
;
1231 (*ntlmssp_state
)->use_ntlmv2
= lp_client_ntlmv2_auth();
1233 (*ntlmssp_state
)->expected_state
= NTLMSSP_INITIAL
;
1235 (*ntlmssp_state
)->ref_count
= 1;
1237 (*ntlmssp_state
)->neg_flags
=
1238 NTLMSSP_NEGOTIATE_128
|
1239 NTLMSSP_NEGOTIATE_ALWAYS_SIGN
|
1240 NTLMSSP_NEGOTIATE_NTLM
|
1241 NTLMSSP_NEGOTIATE_NTLM2
|
1242 NTLMSSP_NEGOTIATE_KEY_EXCH
|
1243 NTLMSSP_REQUEST_TARGET
;
1245 return NT_STATUS_OK
;