2 Unix SMB/CIFS implementation.
4 Copyright (C) Andrew Tridgell 1998-2001
5 Copyright (C) Andrew Bartlett 2001
6 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2002
7 Copyright (C) Luke Howard 2003
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 uint32 global_client_caps = 0;
28 static struct auth_ntlmssp_state *global_ntlmssp_state;
31 on a logon error possibly map the error to success if "map to guest"
34 static NTSTATUS do_map_to_guest(NTSTATUS status, auth_serversupplied_info **server_info,
35 const char *user, const char *domain)
37 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
38 if ((lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_USER) ||
39 (lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_PASSWORD)) {
40 DEBUG(3,("No such user %s [%s] - using guest account\n",
42 status = make_server_info_guest(server_info);
46 if (NT_STATUS_EQUAL(status, NT_STATUS_WRONG_PASSWORD)) {
47 if (lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_PASSWORD) {
48 DEBUG(3,("Registered username %s for guest access\n",user));
49 status = make_server_info_guest(server_info);
56 /****************************************************************************
57 Add the standard 'Samba' signature to the end of the session setup.
58 ****************************************************************************/
60 static int add_signature(char *outbuf, char *p)
65 fstr_sprintf( lanman, "Samba %s", SAMBA_VERSION_STRING);
67 p += srvstr_push(outbuf, p, "Unix", -1, STR_TERMINATE);
68 p += srvstr_push(outbuf, p, lanman, -1, STR_TERMINATE);
69 p += srvstr_push(outbuf, p, lp_workgroup(), -1, STR_TERMINATE);
71 return PTR_DIFF(p, start);
74 /****************************************************************************
75 Send a security blob via a session setup reply.
76 ****************************************************************************/
78 static BOOL reply_sesssetup_blob(connection_struct *conn, char *outbuf,
79 DATA_BLOB blob, NTSTATUS nt_status)
83 set_message(outbuf,4,0,True);
85 nt_status = nt_status_squash(nt_status);
86 SIVAL(outbuf, smb_rcls, NT_STATUS_V(nt_status));
87 SSVAL(outbuf, smb_vwv0, 0xFF); /* no chaining possible */
88 SSVAL(outbuf, smb_vwv3, blob.length);
91 /* should we cap this? */
92 memcpy(p, blob.data, blob.length);
95 p += add_signature( outbuf, p );
97 set_message_end(outbuf,p);
99 return send_smb(smbd_server_fd(),outbuf);
102 /****************************************************************************
103 Do a 'guest' logon, getting back the
104 ****************************************************************************/
106 static NTSTATUS check_guest_password(auth_serversupplied_info **server_info)
108 struct auth_context *auth_context;
109 auth_usersupplied_info *user_info = NULL;
112 unsigned char chal[8];
116 DEBUG(3,("Got anonymous request\n"));
118 if (!NT_STATUS_IS_OK(nt_status = make_auth_context_fixed(&auth_context, chal))) {
122 if (!make_user_info_guest(&user_info)) {
123 (auth_context->free)(&auth_context);
124 return NT_STATUS_NO_MEMORY;
127 nt_status = auth_context->check_ntlm_password(auth_context, user_info, server_info);
128 (auth_context->free)(&auth_context);
129 free_user_info(&user_info);
135 /****************************************************************************
136 reply to a session setup spnego negotiate packet for kerberos
137 ****************************************************************************/
138 static int reply_spnego_kerberos(connection_struct *conn,
139 char *inbuf, char *outbuf,
140 int length, int bufsize,
145 const struct passwd *pw;
150 DATA_BLOB ap_rep, ap_rep_wrapped, response;
151 auth_serversupplied_info *server_info = NULL;
152 uint8 session_key[16];
154 BOOL foreign = False;
155 DATA_BLOB nullblob = data_blob(NULL, 0);
158 ZERO_STRUCT(auth_data);
160 ZERO_STRUCT(ap_rep_wrapped);
161 ZERO_STRUCT(response);
163 if (!spnego_parse_krb5_wrap(*secblob, &ticket, tok_id)) {
164 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
167 ret = ads_verify_ticket(lp_realm(), &ticket, &client, &auth_data, &ap_rep, session_key);
169 data_blob_free(&ticket);
171 if (!NT_STATUS_IS_OK(ret)) {
172 DEBUG(1,("Failed to verify incoming ticket!\n"));
173 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
176 data_blob_free(&auth_data);
178 DEBUG(3,("Ticket name is [%s]\n", client));
180 p = strchr_m(client, '@');
182 DEBUG(3,("Doesn't look like a valid principal\n"));
183 data_blob_free(&ap_rep);
185 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
189 if (strcasecmp(p+1, lp_realm()) != 0) {
190 DEBUG(3,("Ticket for foreign realm %s@%s\n", client, p+1));
191 if (!lp_allow_trusted_domains()) {
192 data_blob_free(&ap_rep);
194 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
199 /* this gives a fully qualified user name (ie. with full realm).
200 that leads to very long usernames, but what else can we do? */
202 asprintf(&user, "%s%c%s", p+1, *lp_winbind_separator(), client);
204 pw = smb_getpwnam( user );
210 DEBUG(1,("Username %s is invalid on this system\n",user));
211 data_blob_free(&ap_rep);
212 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
215 /* setup the string used by %U */
217 sub_set_smb_name(pw->pw_name);
218 reload_services(True);
220 if (!NT_STATUS_IS_OK(ret = make_server_info_pw(&server_info,pw))) {
221 DEBUG(1,("make_server_info_from_pw failed!\n"));
222 data_blob_free(&ap_rep);
223 return ERROR_NT(ret);
226 /* Copy out the session key from the AP_REQ. */
227 memcpy(server_info->session_key, session_key, sizeof(session_key));
229 /* register_vuid keeps the server info */
230 sess_vuid = register_vuid(server_info, nullblob, user);
234 if (sess_vuid == -1) {
235 ret = NT_STATUS_LOGON_FAILURE;
237 set_message(outbuf,4,0,True);
238 SSVAL(outbuf, smb_vwv3, 0);
240 if (server_info->guest) {
241 SSVAL(outbuf,smb_vwv2,1);
244 SSVAL(outbuf, smb_uid, sess_vuid);
246 if (!server_info->guest) {
247 /* We need to start the signing engine
248 * here but a W2K client sends the old
249 * "BSRSPYL " signature instead of the
250 * correct one. Subsequent packets will
253 srv_check_sign_mac(inbuf);
257 /* wrap that up in a nice GSS-API wrapping */
258 if (NT_STATUS_IS_OK(ret)) {
259 ap_rep_wrapped = spnego_gen_krb5_wrap(ap_rep, TOK_ID_KRB_AP_REP);
261 ap_rep_wrapped = data_blob(NULL, 0);
263 response = spnego_gen_auth_response(&ap_rep_wrapped, ret, OID_KERBEROS5_OLD);
264 reply_sesssetup_blob(conn, outbuf, response, ret);
266 data_blob_free(&ap_rep);
267 data_blob_free(&ap_rep_wrapped);
268 data_blob_free(&response);
270 return -1; /* already replied */
274 /****************************************************************************
275 Send a session setup reply, wrapped in SPNEGO.
276 Get vuid and check first.
277 End the NTLMSSP exchange context if we are OK/complete fail
278 ***************************************************************************/
280 static BOOL reply_spnego_ntlmssp(connection_struct *conn, char *inbuf, char *outbuf,
281 AUTH_NTLMSSP_STATE **auth_ntlmssp_state,
282 DATA_BLOB *ntlmssp_blob, NTSTATUS nt_status)
286 struct auth_serversupplied_info *server_info = NULL;
288 if (NT_STATUS_IS_OK(nt_status)) {
289 server_info = (*auth_ntlmssp_state)->server_info;
291 nt_status = do_map_to_guest(nt_status,
293 (*auth_ntlmssp_state)->ntlmssp_state->user,
294 (*auth_ntlmssp_state)->ntlmssp_state->domain);
297 if (NT_STATUS_IS_OK(nt_status)) {
299 DATA_BLOB nullblob = data_blob(NULL, 0);
301 /* register_vuid keeps the server info */
302 sess_vuid = register_vuid(server_info, nullblob, (*auth_ntlmssp_state)->ntlmssp_state->user);
303 (*auth_ntlmssp_state)->server_info = NULL;
305 if (sess_vuid == -1) {
306 nt_status = NT_STATUS_LOGON_FAILURE;
309 set_message(outbuf,4,0,True);
310 SSVAL(outbuf, smb_vwv3, 0);
312 if (server_info->guest) {
313 SSVAL(outbuf,smb_vwv2,1);
316 SSVAL(outbuf,smb_uid,sess_vuid);
318 if (!server_info->guest) {
319 /* We need to start the signing engine
320 * here but a W2K client sends the old
321 * "BSRSPYL " signature instead of the
322 * correct one. Subsequent packets will
325 srv_check_sign_mac(inbuf);
330 response = spnego_gen_auth_response(ntlmssp_blob, nt_status, OID_NTLMSSP);
331 ret = reply_sesssetup_blob(conn, outbuf, response, nt_status);
332 data_blob_free(&response);
334 /* NT_STATUS_MORE_PROCESSING_REQUIRED from our NTLMSSP code tells us,
335 and the other end, that we are not finished yet. */
337 if (!ret || !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
338 auth_ntlmssp_end(auth_ntlmssp_state);
344 /****************************************************************************
345 Reply to a session setup spnego negotiate packet.
346 ****************************************************************************/
348 static int reply_spnego_negotiate(connection_struct *conn,
351 int length, int bufsize,
354 char *OIDs[ASN1_MAX_OIDS];
358 BOOL got_kerberos = False;
361 /* parse out the OIDs and the first sec blob */
362 if (!parse_negTokenTarg(blob1, OIDs, &secblob)) {
363 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
366 /* only look at the first OID for determining the mechToken --
367 accoirding to RFC2478, we should choose the one we want
368 and renegotiate, but i smell a client bug here..
370 Problem observed when connecting to a member (samba box)
371 of an AD domain as a user in a Samba domain. Samba member
372 server sent back krb5/mskrb5/ntlmssp as mechtypes, but the
373 client (2ksp3) replied with ntlmssp/mskrb5/krb5 and an
374 NTLMSSP mechtoken. --jerry */
376 if (strcmp(OID_KERBEROS5, OIDs[0]) == 0 ||
377 strcmp(OID_KERBEROS5_OLD, OIDs[0]) == 0) {
381 for (i=0;OIDs[i];i++) {
382 DEBUG(3,("Got OID %s\n", OIDs[i]));
385 DEBUG(3,("Got secblob of size %lu\n", (unsigned long)secblob.length));
388 if (got_kerberos && (SEC_ADS == lp_security())) {
389 int ret = reply_spnego_kerberos(conn, inbuf, outbuf,
390 length, bufsize, &secblob);
391 data_blob_free(&secblob);
396 if (global_ntlmssp_state) {
397 auth_ntlmssp_end(&global_ntlmssp_state);
400 nt_status = auth_ntlmssp_start(&global_ntlmssp_state);
401 if (!NT_STATUS_IS_OK(nt_status)) {
402 return ERROR_NT(nt_status);
405 nt_status = auth_ntlmssp_update(global_ntlmssp_state,
408 data_blob_free(&secblob);
410 reply_spnego_ntlmssp(conn, inbuf, outbuf, &global_ntlmssp_state,
413 data_blob_free(&chal);
415 /* already replied */
419 /****************************************************************************
420 Reply to a session setup spnego auth packet.
421 ****************************************************************************/
423 static int reply_spnego_auth(connection_struct *conn, char *inbuf, char *outbuf,
424 int length, int bufsize,
427 DATA_BLOB auth, auth_reply;
428 NTSTATUS nt_status = NT_STATUS_INVALID_PARAMETER;
430 if (!spnego_parse_auth(blob1, &auth)) {
432 file_save("auth.dat", blob1.data, blob1.length);
434 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
437 if (!global_ntlmssp_state) {
438 /* auth before negotiatiate? */
439 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
442 nt_status = auth_ntlmssp_update(global_ntlmssp_state,
445 data_blob_free(&auth);
447 reply_spnego_ntlmssp(conn, inbuf, outbuf, &global_ntlmssp_state,
448 &auth_reply, nt_status);
450 data_blob_free(&auth_reply);
452 /* and tell smbd that we have already replied to this packet */
456 /****************************************************************************
457 Reply to a session setup command.
458 ****************************************************************************/
460 static int reply_sesssetup_and_X_spnego(connection_struct *conn, char *inbuf,
462 int length,int bufsize)
468 fstring native_os, native_lanman;
470 uint16 data_blob_len = SVAL(inbuf, smb_vwv7);
471 enum remote_arch_types ra_type = get_remote_arch();
473 DEBUG(3,("Doing spnego session setup\n"));
475 if (global_client_caps == 0) {
476 global_client_caps = IVAL(inbuf,smb_vwv10);
479 p = (uint8 *)smb_buf(inbuf);
481 if (data_blob_len == 0) {
482 /* an invalid request */
483 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
486 bufrem = smb_bufrem(inbuf, p);
487 /* pull the spnego blob */
488 blob1 = data_blob(p, MIN(bufrem, data_blob_len));
491 file_save("negotiate.dat", blob1.data, blob1.length);
494 p2 = inbuf + smb_vwv13 + data_blob_len;
495 p2 += srvstr_pull_buf(inbuf, native_os, p2, sizeof(native_os), STR_TERMINATE);
496 p2 += srvstr_pull_buf(inbuf, native_lanman, p2, sizeof(native_lanman), STR_TERMINATE);
497 DEBUG(3,("NativeOS=[%s] NativeLanMan=[%s]\n", native_os, native_lanman));
499 if ( ra_type == RA_WIN2K )
500 ra_lanman_string( native_lanman );
502 if (blob1.data[0] == ASN1_APPLICATION(0)) {
503 /* its a negTokenTarg packet */
504 ret = reply_spnego_negotiate(conn, inbuf, outbuf, length, bufsize, blob1);
505 data_blob_free(&blob1);
509 if (blob1.data[0] == ASN1_CONTEXT(1)) {
510 /* its a auth packet */
511 ret = reply_spnego_auth(conn, inbuf, outbuf, length, bufsize, blob1);
512 data_blob_free(&blob1);
516 /* what sort of packet is this? */
517 DEBUG(1,("Unknown packet in reply_sesssetup_and_X_spnego\n"));
519 data_blob_free(&blob1);
521 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
524 /****************************************************************************
525 On new VC == 0, shutdown *all* old connections and users.
526 It seems that only NT4.x does this. At W2K and above (XP etc.).
527 a new session setup with VC==0 is ignored.
528 ****************************************************************************/
530 static void setup_new_vc_session(void)
532 DEBUG(2,("setup_new_vc_session: New VC == 0, if NT4.x compatible we would close all old resources.\n"));
535 invalidate_all_vuids();
539 /****************************************************************************
540 Reply to a session setup command.
541 ****************************************************************************/
543 int reply_sesssetup_and_X(connection_struct *conn, char *inbuf,char *outbuf,
544 int length,int bufsize)
550 DATA_BLOB plaintext_password;
552 fstring sub_user; /* Sainitised username for substituion */
555 fstring native_lanman;
556 static BOOL done_sesssetup = False;
557 extern BOOL global_encrypted_passwords_negotiated;
558 extern BOOL global_spnego_negotiated;
562 auth_usersupplied_info *user_info = NULL;
563 extern struct auth_context *negprot_global_auth_context;
564 auth_serversupplied_info *server_info = NULL;
568 BOOL doencrypt = global_encrypted_passwords_negotiated;
570 START_PROFILE(SMBsesssetupX);
572 ZERO_STRUCT(lm_resp);
573 ZERO_STRUCT(nt_resp);
574 ZERO_STRUCT(plaintext_password);
576 DEBUG(3,("wct=%d flg2=0x%x\n", CVAL(inbuf, smb_wct), SVAL(inbuf, smb_flg2)));
578 /* a SPNEGO session setup has 12 command words, whereas a normal
579 NT1 session setup has 13. See the cifs spec. */
580 if (CVAL(inbuf, smb_wct) == 12 &&
581 (SVAL(inbuf, smb_flg2) & FLAGS2_EXTENDED_SECURITY)) {
582 if (!global_spnego_negotiated) {
583 DEBUG(0,("reply_sesssetup_and_X: Rejecting attempt at SPNEGO session setup when it was not negoitiated.\n"));
584 return ERROR_NT(NT_STATUS_UNSUCCESSFUL);
587 if (SVAL(inbuf,smb_vwv4) == 0) {
588 setup_new_vc_session();
590 return reply_sesssetup_and_X_spnego(conn, inbuf, outbuf, length, bufsize);
593 smb_bufsize = SVAL(inbuf,smb_vwv2);
595 if (Protocol < PROTOCOL_NT1) {
596 uint16 passlen1 = SVAL(inbuf,smb_vwv7);
597 if ((passlen1 > MAX_PASS_LEN) || (passlen1 > smb_bufrem(inbuf, smb_buf(inbuf)))) {
598 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
602 lm_resp = data_blob(smb_buf(inbuf), passlen1);
604 plaintext_password = data_blob(smb_buf(inbuf), passlen1+1);
605 /* Ensure null termination */
606 plaintext_password.data[passlen1] = 0;
609 srvstr_pull_buf(inbuf, user, smb_buf(inbuf)+passlen1, sizeof(user), STR_TERMINATE);
613 uint16 passlen1 = SVAL(inbuf,smb_vwv7);
614 uint16 passlen2 = SVAL(inbuf,smb_vwv8);
615 enum remote_arch_types ra_type = get_remote_arch();
616 char *p = smb_buf(inbuf);
618 if(global_client_caps == 0)
619 global_client_caps = IVAL(inbuf,smb_vwv11);
621 /* client_caps is used as final determination if client is NT or Win95.
622 This is needed to return the correct error codes in some
626 if(ra_type == RA_WINNT || ra_type == RA_WIN2K || ra_type == RA_WIN95) {
627 if(!(global_client_caps & (CAP_NT_SMBS | CAP_STATUS32))) {
628 set_remote_arch( RA_WIN95);
633 /* both Win95 and WinNT stuff up the password lengths for
634 non-encrypting systems. Uggh.
636 if passlen1==24 its a win95 system, and its setting the
637 password length incorrectly. Luckily it still works with the
638 default code because Win95 will null terminate the password
641 if passlen1>0 and passlen2>0 then maybe its a NT box and its
642 setting passlen2 to some random value which really stuffs
643 things up. we need to fix that one. */
645 if (passlen1 > 0 && passlen2 > 0 && passlen2 != 24 && passlen2 != 1)
649 /* check for nasty tricks */
650 if (passlen1 > MAX_PASS_LEN || passlen1 > smb_bufrem(inbuf, p)) {
651 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
654 if (passlen2 > MAX_PASS_LEN || passlen2 > smb_bufrem(inbuf, p+passlen1)) {
655 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
658 /* Save the lanman2 password and the NT md4 password. */
660 if ((doencrypt) && (passlen1 != 0) && (passlen1 != 24)) {
665 lm_resp = data_blob(p, passlen1);
666 nt_resp = data_blob(p+passlen1, passlen2);
670 unic=SVAL(inbuf, smb_flg2) & FLAGS2_UNICODE_STRINGS;
671 srvstr_pull(inbuf, pass, smb_buf(inbuf),
672 sizeof(pass), unic ? passlen2 : passlen1,
674 plaintext_password = data_blob(pass, strlen(pass)+1);
677 p += passlen1 + passlen2;
678 p += srvstr_pull_buf(inbuf, user, p, sizeof(user), STR_TERMINATE);
679 p += srvstr_pull_buf(inbuf, domain, p, sizeof(domain), STR_TERMINATE);
680 p += srvstr_pull_buf(inbuf, native_os, p, sizeof(native_os), STR_TERMINATE);
681 p += srvstr_pull_buf(inbuf, native_lanman, p, sizeof(native_lanman), STR_TERMINATE);
682 DEBUG(3,("Domain=[%s] NativeOS=[%s] NativeLanMan=[%s]\n",
683 domain,native_os,native_lanman));
685 if ( ra_type == RA_WIN2K )
686 ra_lanman_string( native_lanman );
690 if (SVAL(inbuf,smb_vwv4) == 0) {
691 setup_new_vc_session();
694 DEBUG(3,("sesssetupX:name=[%s]\\[%s]@[%s]\n", domain, user, get_remote_machine_name()));
697 if (global_spnego_negotiated) {
699 /* This has to be here, because this is a perfectly valid behaviour for guest logons :-( */
701 DEBUG(0,("reply_sesssetup_and_X: Rejecting attempt at 'normal' session setup after negotiating spnego.\n"));
702 return ERROR_NT(NT_STATUS_UNSUCCESSFUL);
704 fstrcpy(sub_user, user);
706 /* setup the string used by %U */
707 sub_set_smb_name(user);
709 fstrcpy(sub_user, lp_guestaccount());
712 sub_set_smb_name(sub_user);
714 reload_services(True);
716 if (lp_security() == SEC_SHARE) {
717 /* in share level we should ignore any passwords */
719 data_blob_free(&lm_resp);
720 data_blob_free(&nt_resp);
721 data_blob_clear_free(&plaintext_password);
723 map_username(sub_user);
724 add_session_user(sub_user);
725 /* Then force it to null for the benfit of the code below */
731 nt_status = check_guest_password(&server_info);
733 } else if (doencrypt) {
734 if (!negprot_global_auth_context) {
735 DEBUG(0, ("reply_sesssetup_and_X: Attempted encrypted session setup without negprot denied!\n"));
736 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
738 nt_status = make_user_info_for_reply_enc(&user_info, user, domain,
740 if (NT_STATUS_IS_OK(nt_status)) {
741 nt_status = negprot_global_auth_context->check_ntlm_password(negprot_global_auth_context,
746 struct auth_context *plaintext_auth_context = NULL;
748 if (NT_STATUS_IS_OK(nt_status = make_auth_context_subsystem(&plaintext_auth_context))) {
749 chal = plaintext_auth_context->get_ntlm_challenge(plaintext_auth_context);
751 if (!make_user_info_for_reply(&user_info,
753 plaintext_password)) {
754 nt_status = NT_STATUS_NO_MEMORY;
757 if (NT_STATUS_IS_OK(nt_status)) {
758 nt_status = plaintext_auth_context->check_ntlm_password(plaintext_auth_context,
762 (plaintext_auth_context->free)(&plaintext_auth_context);
767 free_user_info(&user_info);
769 data_blob_free(&lm_resp);
770 data_blob_clear_free(&plaintext_password);
772 if (!NT_STATUS_IS_OK(nt_status)) {
773 nt_status = do_map_to_guest(nt_status, &server_info, user, domain);
776 if (!NT_STATUS_IS_OK(nt_status)) {
777 data_blob_free(&nt_resp);
778 return ERROR_NT(nt_status_squash(nt_status));
781 /* it's ok - setup a reply */
782 set_message(outbuf,3,0,True);
783 if (Protocol >= PROTOCOL_NT1) {
784 char *p = smb_buf( outbuf );
785 p += add_signature( outbuf, p );
786 set_message_end( outbuf, p );
787 /* perhaps grab OS version here?? */
790 if (server_info->guest) {
791 SSVAL(outbuf,smb_vwv2,1);
794 /* register the name and uid as being validated, so further connections
795 to a uid can get through without a password, on the same VC */
797 /* register_vuid keeps the server info */
798 sess_vuid = register_vuid(server_info, nt_resp, sub_user);
799 data_blob_free(&nt_resp);
801 if (sess_vuid == -1) {
802 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
805 if (!server_info->guest && !srv_check_sign_mac(inbuf)) {
806 exit_server("reply_sesssetup_and_X: bad smb signature");
809 SSVAL(outbuf,smb_uid,sess_vuid);
810 SSVAL(inbuf,smb_uid,sess_vuid);
813 max_send = MIN(max_send,smb_bufsize);
815 done_sesssetup = True;
817 END_PROFILE(SMBsesssetupX);
818 return chain_reply(inbuf,outbuf,length,bufsize);