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 DATA_BLOB session_key;
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 (!strequal(p+1, lp_realm())) {
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 /* register_vuid keeps the server info */
227 sess_vuid = register_vuid(server_info, session_key, nullblob, user);
231 if (sess_vuid == -1) {
232 ret = NT_STATUS_LOGON_FAILURE;
234 set_message(outbuf,4,0,True);
235 SSVAL(outbuf, smb_vwv3, 0);
237 if (server_info->guest) {
238 SSVAL(outbuf,smb_vwv2,1);
241 SSVAL(outbuf, smb_uid, sess_vuid);
243 if (!server_info->guest) {
244 /* We need to start the signing engine
245 * here but a W2K client sends the old
246 * "BSRSPYL " signature instead of the
247 * correct one. Subsequent packets will
250 srv_check_sign_mac(inbuf);
254 /* wrap that up in a nice GSS-API wrapping */
255 if (NT_STATUS_IS_OK(ret)) {
256 ap_rep_wrapped = spnego_gen_krb5_wrap(ap_rep, TOK_ID_KRB_AP_REP);
258 ap_rep_wrapped = data_blob(NULL, 0);
260 response = spnego_gen_auth_response(&ap_rep_wrapped, ret, OID_KERBEROS5_OLD);
261 reply_sesssetup_blob(conn, outbuf, response, ret);
263 data_blob_free(&ap_rep);
264 data_blob_free(&ap_rep_wrapped);
265 data_blob_free(&response);
267 return -1; /* already replied */
271 /****************************************************************************
272 Send a session setup reply, wrapped in SPNEGO.
273 Get vuid and check first.
274 End the NTLMSSP exchange context if we are OK/complete fail
275 ***************************************************************************/
277 static BOOL reply_spnego_ntlmssp(connection_struct *conn, char *inbuf, char *outbuf,
278 AUTH_NTLMSSP_STATE **auth_ntlmssp_state,
279 DATA_BLOB *ntlmssp_blob, NTSTATUS nt_status)
283 struct auth_serversupplied_info *server_info = NULL;
285 if (NT_STATUS_IS_OK(nt_status)) {
286 server_info = (*auth_ntlmssp_state)->server_info;
288 nt_status = do_map_to_guest(nt_status,
290 (*auth_ntlmssp_state)->ntlmssp_state->user,
291 (*auth_ntlmssp_state)->ntlmssp_state->domain);
294 if (NT_STATUS_IS_OK(nt_status)) {
296 DATA_BLOB nullblob = data_blob(NULL, 0);
297 DATA_BLOB session_key = data_blob((*auth_ntlmssp_state)->ntlmssp_state->session_key.data, (*auth_ntlmssp_state)->ntlmssp_state->session_key.length);
299 /* register_vuid keeps the server info */
300 sess_vuid = register_vuid(server_info, session_key, nullblob, (*auth_ntlmssp_state)->ntlmssp_state->user);
301 (*auth_ntlmssp_state)->server_info = NULL;
303 if (sess_vuid == -1) {
304 nt_status = NT_STATUS_LOGON_FAILURE;
307 set_message(outbuf,4,0,True);
308 SSVAL(outbuf, smb_vwv3, 0);
310 if (server_info->guest) {
311 SSVAL(outbuf,smb_vwv2,1);
314 SSVAL(outbuf,smb_uid,sess_vuid);
316 if (!server_info->guest) {
317 /* We need to start the signing engine
318 * here but a W2K client sends the old
319 * "BSRSPYL " signature instead of the
320 * correct one. Subsequent packets will
323 srv_check_sign_mac(inbuf);
328 response = spnego_gen_auth_response(ntlmssp_blob, nt_status, OID_NTLMSSP);
329 ret = reply_sesssetup_blob(conn, outbuf, response, nt_status);
330 data_blob_free(&response);
332 /* NT_STATUS_MORE_PROCESSING_REQUIRED from our NTLMSSP code tells us,
333 and the other end, that we are not finished yet. */
335 if (!ret || !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
336 auth_ntlmssp_end(auth_ntlmssp_state);
342 /****************************************************************************
343 Reply to a session setup spnego negotiate packet.
344 ****************************************************************************/
346 static int reply_spnego_negotiate(connection_struct *conn,
349 int length, int bufsize,
352 char *OIDs[ASN1_MAX_OIDS];
356 BOOL got_kerberos = False;
359 /* parse out the OIDs and the first sec blob */
360 if (!parse_negTokenTarg(blob1, OIDs, &secblob)) {
361 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
364 /* only look at the first OID for determining the mechToken --
365 accoirding to RFC2478, we should choose the one we want
366 and renegotiate, but i smell a client bug here..
368 Problem observed when connecting to a member (samba box)
369 of an AD domain as a user in a Samba domain. Samba member
370 server sent back krb5/mskrb5/ntlmssp as mechtypes, but the
371 client (2ksp3) replied with ntlmssp/mskrb5/krb5 and an
372 NTLMSSP mechtoken. --jerry */
374 if (strcmp(OID_KERBEROS5, OIDs[0]) == 0 ||
375 strcmp(OID_KERBEROS5_OLD, OIDs[0]) == 0) {
379 for (i=0;OIDs[i];i++) {
380 DEBUG(3,("Got OID %s\n", OIDs[i]));
383 DEBUG(3,("Got secblob of size %lu\n", (unsigned long)secblob.length));
386 if (got_kerberos && (SEC_ADS == lp_security())) {
387 int ret = reply_spnego_kerberos(conn, inbuf, outbuf,
388 length, bufsize, &secblob);
389 data_blob_free(&secblob);
394 if (global_ntlmssp_state) {
395 auth_ntlmssp_end(&global_ntlmssp_state);
398 nt_status = auth_ntlmssp_start(&global_ntlmssp_state);
399 if (!NT_STATUS_IS_OK(nt_status)) {
400 return ERROR_NT(nt_status);
403 nt_status = auth_ntlmssp_update(global_ntlmssp_state,
406 data_blob_free(&secblob);
408 reply_spnego_ntlmssp(conn, inbuf, outbuf, &global_ntlmssp_state,
411 data_blob_free(&chal);
413 /* already replied */
417 /****************************************************************************
418 Reply to a session setup spnego auth packet.
419 ****************************************************************************/
421 static int reply_spnego_auth(connection_struct *conn, char *inbuf, char *outbuf,
422 int length, int bufsize,
425 DATA_BLOB auth, auth_reply;
426 NTSTATUS nt_status = NT_STATUS_INVALID_PARAMETER;
428 if (!spnego_parse_auth(blob1, &auth)) {
430 file_save("auth.dat", blob1.data, blob1.length);
432 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
435 if (!global_ntlmssp_state) {
436 /* auth before negotiatiate? */
437 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
440 nt_status = auth_ntlmssp_update(global_ntlmssp_state,
443 data_blob_free(&auth);
445 reply_spnego_ntlmssp(conn, inbuf, outbuf, &global_ntlmssp_state,
446 &auth_reply, nt_status);
448 data_blob_free(&auth_reply);
450 /* and tell smbd that we have already replied to this packet */
454 /****************************************************************************
455 Reply to a session setup command.
456 ****************************************************************************/
458 static int reply_sesssetup_and_X_spnego(connection_struct *conn, char *inbuf,
460 int length,int bufsize)
466 fstring native_os, native_lanman;
468 uint16 data_blob_len = SVAL(inbuf, smb_vwv7);
469 enum remote_arch_types ra_type = get_remote_arch();
471 DEBUG(3,("Doing spnego session setup\n"));
473 if (global_client_caps == 0) {
474 global_client_caps = IVAL(inbuf,smb_vwv10);
476 if (!(global_client_caps & CAP_STATUS32)) {
477 remove_from_common_flags2(FLAGS2_32_BIT_ERROR_CODES);
482 p = (uint8 *)smb_buf(inbuf);
484 if (data_blob_len == 0) {
485 /* an invalid request */
486 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
489 bufrem = smb_bufrem(inbuf, p);
490 /* pull the spnego blob */
491 blob1 = data_blob(p, MIN(bufrem, data_blob_len));
494 file_save("negotiate.dat", blob1.data, blob1.length);
497 p2 = inbuf + smb_vwv13 + data_blob_len;
498 p2 += srvstr_pull_buf(inbuf, native_os, p2, sizeof(native_os), STR_TERMINATE);
499 p2 += srvstr_pull_buf(inbuf, native_lanman, p2, sizeof(native_lanman), STR_TERMINATE);
500 DEBUG(3,("NativeOS=[%s] NativeLanMan=[%s]\n", native_os, native_lanman));
502 if ( ra_type == RA_WIN2K )
503 ra_lanman_string( native_lanman );
505 if (blob1.data[0] == ASN1_APPLICATION(0)) {
506 /* its a negTokenTarg packet */
507 ret = reply_spnego_negotiate(conn, inbuf, outbuf, length, bufsize, blob1);
508 data_blob_free(&blob1);
512 if (blob1.data[0] == ASN1_CONTEXT(1)) {
513 /* its a auth packet */
514 ret = reply_spnego_auth(conn, inbuf, outbuf, length, bufsize, blob1);
515 data_blob_free(&blob1);
519 /* what sort of packet is this? */
520 DEBUG(1,("Unknown packet in reply_sesssetup_and_X_spnego\n"));
522 data_blob_free(&blob1);
524 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
527 /****************************************************************************
528 On new VC == 0, shutdown *all* old connections and users.
529 It seems that only NT4.x does this. At W2K and above (XP etc.).
530 a new session setup with VC==0 is ignored.
531 ****************************************************************************/
533 static void setup_new_vc_session(void)
535 DEBUG(2,("setup_new_vc_session: New VC == 0, if NT4.x compatible we would close all old resources.\n"));
538 invalidate_all_vuids();
542 /****************************************************************************
543 Reply to a session setup command.
544 ****************************************************************************/
546 int reply_sesssetup_and_X(connection_struct *conn, char *inbuf,char *outbuf,
547 int length,int bufsize)
553 DATA_BLOB plaintext_password;
555 fstring sub_user; /* Sainitised username for substituion */
558 fstring native_lanman;
559 static BOOL done_sesssetup = False;
560 extern BOOL global_encrypted_passwords_negotiated;
561 extern BOOL global_spnego_negotiated;
565 auth_usersupplied_info *user_info = NULL;
566 extern struct auth_context *negprot_global_auth_context;
567 auth_serversupplied_info *server_info = NULL;
571 BOOL doencrypt = global_encrypted_passwords_negotiated;
573 DATA_BLOB session_key;
575 START_PROFILE(SMBsesssetupX);
577 ZERO_STRUCT(lm_resp);
578 ZERO_STRUCT(nt_resp);
579 ZERO_STRUCT(plaintext_password);
581 DEBUG(3,("wct=%d flg2=0x%x\n", CVAL(inbuf, smb_wct), SVAL(inbuf, smb_flg2)));
583 /* a SPNEGO session setup has 12 command words, whereas a normal
584 NT1 session setup has 13. See the cifs spec. */
585 if (CVAL(inbuf, smb_wct) == 12 &&
586 (SVAL(inbuf, smb_flg2) & FLAGS2_EXTENDED_SECURITY)) {
587 if (!global_spnego_negotiated) {
588 DEBUG(0,("reply_sesssetup_and_X: Rejecting attempt at SPNEGO session setup when it was not negoitiated.\n"));
589 return ERROR_NT(NT_STATUS_UNSUCCESSFUL);
592 if (SVAL(inbuf,smb_vwv4) == 0) {
593 setup_new_vc_session();
595 return reply_sesssetup_and_X_spnego(conn, inbuf, outbuf, length, bufsize);
598 smb_bufsize = SVAL(inbuf,smb_vwv2);
600 if (Protocol < PROTOCOL_NT1) {
601 uint16 passlen1 = SVAL(inbuf,smb_vwv7);
602 if ((passlen1 > MAX_PASS_LEN) || (passlen1 > smb_bufrem(inbuf, smb_buf(inbuf)))) {
603 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
607 lm_resp = data_blob(smb_buf(inbuf), passlen1);
609 plaintext_password = data_blob(smb_buf(inbuf), passlen1+1);
610 /* Ensure null termination */
611 plaintext_password.data[passlen1] = 0;
614 srvstr_pull_buf(inbuf, user, smb_buf(inbuf)+passlen1, sizeof(user), STR_TERMINATE);
618 uint16 passlen1 = SVAL(inbuf,smb_vwv7);
619 uint16 passlen2 = SVAL(inbuf,smb_vwv8);
620 enum remote_arch_types ra_type = get_remote_arch();
621 char *p = smb_buf(inbuf);
623 if(global_client_caps == 0) {
624 global_client_caps = IVAL(inbuf,smb_vwv11);
626 if (!(global_client_caps & CAP_STATUS32)) {
627 remove_from_common_flags2(FLAGS2_32_BIT_ERROR_CODES);
630 /* client_caps is used as final determination if client is NT or Win95.
631 This is needed to return the correct error codes in some
635 if(ra_type == RA_WINNT || ra_type == RA_WIN2K || ra_type == RA_WIN95) {
636 if(!(global_client_caps & (CAP_NT_SMBS | CAP_STATUS32))) {
637 set_remote_arch( RA_WIN95);
643 /* both Win95 and WinNT stuff up the password lengths for
644 non-encrypting systems. Uggh.
646 if passlen1==24 its a win95 system, and its setting the
647 password length incorrectly. Luckily it still works with the
648 default code because Win95 will null terminate the password
651 if passlen1>0 and passlen2>0 then maybe its a NT box and its
652 setting passlen2 to some random value which really stuffs
653 things up. we need to fix that one. */
655 if (passlen1 > 0 && passlen2 > 0 && passlen2 != 24 && passlen2 != 1)
659 /* check for nasty tricks */
660 if (passlen1 > MAX_PASS_LEN || passlen1 > smb_bufrem(inbuf, p)) {
661 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
664 if (passlen2 > MAX_PASS_LEN || passlen2 > smb_bufrem(inbuf, p+passlen1)) {
665 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
668 /* Save the lanman2 password and the NT md4 password. */
670 if ((doencrypt) && (passlen1 != 0) && (passlen1 != 24)) {
675 lm_resp = data_blob(p, passlen1);
676 nt_resp = data_blob(p+passlen1, passlen2);
680 unic=SVAL(inbuf, smb_flg2) & FLAGS2_UNICODE_STRINGS;
681 srvstr_pull(inbuf, pass, smb_buf(inbuf),
682 sizeof(pass), unic ? passlen2 : passlen1,
684 plaintext_password = data_blob(pass, strlen(pass)+1);
687 p += passlen1 + passlen2;
688 p += srvstr_pull_buf(inbuf, user, p, sizeof(user), STR_TERMINATE);
689 p += srvstr_pull_buf(inbuf, domain, p, sizeof(domain), STR_TERMINATE);
690 p += srvstr_pull_buf(inbuf, native_os, p, sizeof(native_os), STR_TERMINATE);
691 p += srvstr_pull_buf(inbuf, native_lanman, p, sizeof(native_lanman), STR_TERMINATE);
692 DEBUG(3,("Domain=[%s] NativeOS=[%s] NativeLanMan=[%s]\n",
693 domain,native_os,native_lanman));
695 if ( ra_type == RA_WIN2K )
696 ra_lanman_string( native_lanman );
700 if (SVAL(inbuf,smb_vwv4) == 0) {
701 setup_new_vc_session();
704 DEBUG(3,("sesssetupX:name=[%s]\\[%s]@[%s]\n", domain, user, get_remote_machine_name()));
707 if (global_spnego_negotiated) {
709 /* This has to be here, because this is a perfectly valid behaviour for guest logons :-( */
711 DEBUG(0,("reply_sesssetup_and_X: Rejecting attempt at 'normal' session setup after negotiating spnego.\n"));
712 return ERROR_NT(NT_STATUS_UNSUCCESSFUL);
714 fstrcpy(sub_user, user);
716 /* setup the string used by %U */
717 sub_set_smb_name(user);
719 fstrcpy(sub_user, lp_guestaccount());
722 sub_set_smb_name(sub_user);
724 reload_services(True);
726 if (lp_security() == SEC_SHARE) {
727 /* in share level we should ignore any passwords */
729 data_blob_free(&lm_resp);
730 data_blob_free(&nt_resp);
731 data_blob_clear_free(&plaintext_password);
733 map_username(sub_user);
734 add_session_user(sub_user);
735 /* Then force it to null for the benfit of the code below */
741 nt_status = check_guest_password(&server_info);
743 } else if (doencrypt) {
744 if (!negprot_global_auth_context) {
745 DEBUG(0, ("reply_sesssetup_and_X: Attempted encrypted session setup without negprot denied!\n"));
746 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
748 nt_status = make_user_info_for_reply_enc(&user_info, user, domain,
750 if (NT_STATUS_IS_OK(nt_status)) {
751 nt_status = negprot_global_auth_context->check_ntlm_password(negprot_global_auth_context,
756 struct auth_context *plaintext_auth_context = NULL;
758 if (NT_STATUS_IS_OK(nt_status = make_auth_context_subsystem(&plaintext_auth_context))) {
759 chal = plaintext_auth_context->get_ntlm_challenge(plaintext_auth_context);
761 if (!make_user_info_for_reply(&user_info,
763 plaintext_password)) {
764 nt_status = NT_STATUS_NO_MEMORY;
767 if (NT_STATUS_IS_OK(nt_status)) {
768 nt_status = plaintext_auth_context->check_ntlm_password(plaintext_auth_context,
772 (plaintext_auth_context->free)(&plaintext_auth_context);
777 free_user_info(&user_info);
779 if (!NT_STATUS_IS_OK(nt_status)) {
780 nt_status = do_map_to_guest(nt_status, &server_info, user, domain);
783 if (!NT_STATUS_IS_OK(nt_status)) {
784 data_blob_free(&nt_resp);
785 data_blob_free(&lm_resp);
786 data_blob_clear_free(&plaintext_password);
787 return ERROR_NT(nt_status_squash(nt_status));
790 if (server_info->nt_session_key.data) {
791 session_key = data_blob(server_info->nt_session_key.data, server_info->nt_session_key.length);
792 } else if (server_info->lm_session_key.length >= 8 && lm_resp.length == 24) {
793 session_key = data_blob(NULL, 16);
794 SMBsesskeygen_lmv1(server_info->lm_session_key.data, lm_resp.data,
798 data_blob_free(&lm_resp);
799 data_blob_clear_free(&plaintext_password);
801 /* it's ok - setup a reply */
802 set_message(outbuf,3,0,True);
803 if (Protocol >= PROTOCOL_NT1) {
804 char *p = smb_buf( outbuf );
805 p += add_signature( outbuf, p );
806 set_message_end( outbuf, p );
807 /* perhaps grab OS version here?? */
810 if (server_info->guest) {
811 SSVAL(outbuf,smb_vwv2,1);
814 /* register the name and uid as being validated, so further connections
815 to a uid can get through without a password, on the same VC */
817 /* register_vuid keeps the server info */
818 sess_vuid = register_vuid(server_info, session_key, nt_resp, sub_user);
819 data_blob_free(&nt_resp);
821 if (sess_vuid == -1) {
822 return ERROR_NT(NT_STATUS_LOGON_FAILURE);
825 if (!server_info->guest && !srv_check_sign_mac(inbuf)) {
826 exit_server("reply_sesssetup_and_X: bad smb signature");
829 SSVAL(outbuf,smb_uid,sess_vuid);
830 SSVAL(inbuf,smb_uid,sess_vuid);
833 max_send = MIN(max_send,smb_bufsize);
835 done_sesssetup = True;
837 END_PROFILE(SMBsesssetupX);
838 return chain_reply(inbuf,outbuf,length,bufsize);