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
8 Copyright (C) Volker Lendecke 2007
9 Copyright (C) Jeremy Allison 2007
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>.
26 #include "../lib/tsocket/tsocket.h"
27 #include "smbd/smbd.h"
28 #include "smbd/globals.h"
29 #include "../libcli/auth/spnego.h"
30 #include "../libcli/auth/ntlmssp.h"
31 #include "ntlmssp_wrap.h"
32 #include "../librpc/gen_ndr/krb5pac.h"
33 #include "libads/kerberos_proto.h"
34 #include "../lib/util/asn1.h"
37 #include "smbprofile.h"
38 #include "../libcli/security/security.h"
39 #include "auth/gensec/gensec.h"
41 /* For split krb5 SPNEGO blobs. */
42 struct pending_auth_data {
43 struct pending_auth_data *prev, *next;
44 uint16 vuid; /* Tag for this entry. */
45 uint16 smbpid; /* Alternate tag for this entry. */
47 DATA_BLOB partial_data;
50 /****************************************************************************
51 Add the standard 'Samba' signature to the end of the session setup.
52 ****************************************************************************/
54 static int push_signature(uint8 **outbuf)
61 tmp = message_push_string(outbuf, "Unix", STR_TERMINATE);
63 if (tmp == -1) return -1;
66 if (asprintf(&lanman, "Samba %s", samba_version_string()) != -1) {
67 tmp = message_push_string(outbuf, lanman, STR_TERMINATE);
71 tmp = message_push_string(outbuf, "Samba", STR_TERMINATE);
74 if (tmp == -1) return -1;
77 tmp = message_push_string(outbuf, lp_workgroup(), STR_TERMINATE);
79 if (tmp == -1) return -1;
85 /****************************************************************************
86 Send a security blob via a session setup reply.
87 ****************************************************************************/
89 static void reply_sesssetup_blob(struct smb_request *req,
93 if (!NT_STATUS_IS_OK(nt_status) &&
94 !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
95 reply_nterror(req, nt_status_squash(nt_status));
99 nt_status = nt_status_squash(nt_status);
100 SIVAL(req->outbuf, smb_rcls, NT_STATUS_V(nt_status));
101 SSVAL(req->outbuf, smb_vwv0, 0xFF); /* no chaining possible */
102 SSVAL(req->outbuf, smb_vwv3, blob.length);
104 if ((message_push_blob(&req->outbuf, blob) == -1)
105 || (push_signature(&req->outbuf) == -1)) {
106 reply_nterror(req, NT_STATUS_NO_MEMORY);
110 /****************************************************************************
111 Do a 'guest' logon, getting back the
112 ****************************************************************************/
114 static NTSTATUS check_guest_password(const struct tsocket_address *remote_address,
115 struct auth_serversupplied_info **server_info)
117 struct auth_context *auth_context;
118 struct auth_usersupplied_info *user_info = NULL;
121 static unsigned char chal[8] = { 0, };
123 DEBUG(3,("Got anonymous request\n"));
125 nt_status = make_auth_context_fixed(talloc_tos(), &auth_context, chal);
126 if (!NT_STATUS_IS_OK(nt_status)) {
130 if (!make_user_info_guest(remote_address, &user_info)) {
131 TALLOC_FREE(auth_context);
132 return NT_STATUS_NO_MEMORY;
135 nt_status = auth_context->check_ntlm_password(auth_context,
138 TALLOC_FREE(auth_context);
139 free_user_info(&user_info);
147 /* Experiment that failed. See "only happens with a KDC" comment below. */
148 /****************************************************************************
149 Cerate a clock skew error blob for a Windows client.
150 ****************************************************************************/
152 static bool make_krb5_skew_error(DATA_BLOB *pblob_out)
154 krb5_context context = NULL;
155 krb5_error_code kerr = 0;
157 krb5_principal host_princ = NULL;
158 char *host_princ_s = NULL;
161 *pblob_out = data_blob_null;
163 initialize_krb5_error_table();
164 kerr = krb5_init_context(&context);
168 /* Create server principal. */
169 asprintf(&host_princ_s, "%s$@%s", lp_netbios_name(), lp_realm());
173 strlower_m(host_princ_s);
175 kerr = smb_krb5_parse_name(context, host_princ_s, &host_princ);
177 DEBUG(10,("make_krb5_skew_error: smb_krb5_parse_name failed "
178 "for name %s: Error %s\n",
179 host_princ_s, error_message(kerr) ));
183 kerr = smb_krb5_mk_error(context, KRB5KRB_AP_ERR_SKEW,
186 DEBUG(10,("make_krb5_skew_error: smb_krb5_mk_error "
187 "failed: Error %s\n",
188 error_message(kerr) ));
192 *pblob_out = data_blob(reply.data, reply.length);
193 kerberos_free_data_contents(context,&reply);
199 SAFE_FREE(host_princ_s);
202 krb5_free_principal(context, host_princ);
204 krb5_free_context(context);
209 /****************************************************************************
210 Reply to a session setup spnego negotiate packet for kerberos.
211 ****************************************************************************/
213 static void reply_spnego_kerberos(struct smb_request *req,
217 bool *p_invalidate_vuid)
222 int sess_vuid = req->vuid;
223 NTSTATUS ret = NT_STATUS_OK;
224 DATA_BLOB ap_rep, ap_rep_wrapped, response;
225 struct auth_session_info *session_info = NULL;
226 DATA_BLOB session_key = data_blob_null;
228 DATA_BLOB nullblob = data_blob_null;
229 bool map_domainuser_to_guest = False;
230 bool username_was_mapped;
231 struct PAC_LOGON_INFO *logon_info = NULL;
232 struct smbd_server_connection *sconn = req->sconn;
240 ZERO_STRUCT(ap_rep_wrapped);
241 ZERO_STRUCT(response);
243 /* Normally we will always invalidate the intermediate vuid. */
244 *p_invalidate_vuid = True;
246 mem_ctx = talloc_init("reply_spnego_kerberos");
247 if (mem_ctx == NULL) {
248 reply_nterror(req, nt_status_squash(NT_STATUS_NO_MEMORY));
252 if (!spnego_parse_krb5_wrap(mem_ctx, *secblob, &ticket, tok_id)) {
253 talloc_destroy(mem_ctx);
254 reply_nterror(req, nt_status_squash(NT_STATUS_LOGON_FAILURE));
258 ret = ads_verify_ticket(mem_ctx, lp_realm(), 0, &ticket,
259 &principal, &logon_info, &ap_rep,
262 data_blob_free(&ticket);
264 if (!NT_STATUS_IS_OK(ret)) {
266 /* Experiment that failed.
267 * See "only happens with a KDC" comment below. */
269 if (NT_STATUS_EQUAL(ret, NT_STATUS_TIME_DIFFERENCE_AT_DC)) {
272 * Windows in this case returns
273 * NT_STATUS_MORE_PROCESSING_REQUIRED
274 * with a negTokenTarg blob containing an krb5_error
275 * struct ASN1 encoded containing KRB5KRB_AP_ERR_SKEW.
276 * The client then fixes its clock and continues rather
277 * than giving an error. JRA.
278 * -- Looks like this only happens with a KDC. JRA.
281 bool ok = make_krb5_skew_error(&ap_rep);
283 talloc_destroy(mem_ctx);
284 return ERROR_NT(nt_status_squash(
285 NT_STATUS_LOGON_FAILURE));
287 ap_rep_wrapped = spnego_gen_krb5_wrap(ap_rep,
289 response = spnego_gen_auth_response(&ap_rep_wrapped,
290 ret, OID_KERBEROS5_OLD);
291 reply_sesssetup_blob(conn, inbuf, outbuf, response,
292 NT_STATUS_MORE_PROCESSING_REQUIRED);
295 * In this one case we don't invalidate the
296 * intermediate vuid as we're expecting the client
297 * to re-use it for the next sessionsetupX packet. JRA.
300 *p_invalidate_vuid = False;
302 data_blob_free(&ap_rep);
303 data_blob_free(&ap_rep_wrapped);
304 data_blob_free(&response);
305 talloc_destroy(mem_ctx);
306 return -1; /* already replied */
309 if (!NT_STATUS_EQUAL(ret, NT_STATUS_TIME_DIFFERENCE_AT_DC)) {
310 ret = NT_STATUS_LOGON_FAILURE;
313 DEBUG(1,("Failed to verify incoming ticket with error %s!\n",
315 talloc_destroy(mem_ctx);
316 reply_nterror(req, nt_status_squash(ret));
320 ret = get_user_from_kerberos_info(talloc_tos(),
321 sconn->remote_hostname,
322 principal, logon_info,
323 &username_was_mapped,
324 &map_domainuser_to_guest,
326 &real_username, &pw);
327 if (!NT_STATUS_IS_OK(ret)) {
328 data_blob_free(&ap_rep);
329 data_blob_free(&session_key);
330 talloc_destroy(mem_ctx);
331 reply_nterror(req,nt_status_squash(NT_STATUS_LOGON_FAILURE));
335 /* save the PAC data if we have it */
337 netsamlogon_cache_store(user, &logon_info->info3);
340 /* setup the string used by %U */
341 sub_set_smb_name(real_username);
343 /* reload services so that the new %U is taken into account */
344 reload_services(sconn->msg_ctx, sconn->sock, True);
346 ret = make_session_info_krb5(mem_ctx,
347 user, domain, real_username, pw,
348 logon_info, map_domainuser_to_guest,
352 data_blob_free(&session_key);
353 if (!NT_STATUS_IS_OK(ret)) {
354 DEBUG(1, ("make_server_info_krb5 failed!\n"));
355 data_blob_free(&ap_rep);
356 TALLOC_FREE(mem_ctx);
357 reply_nterror(req, nt_status_squash(ret));
361 if (!is_partial_auth_vuid(sconn, sess_vuid)) {
362 sess_vuid = register_initial_vuid(sconn);
365 /* register_existing_vuid keeps the server info */
366 /* register_existing_vuid takes ownership of session_key on success,
367 * no need to free after this on success. A better interface would copy
370 sess_vuid = register_existing_vuid(sconn, sess_vuid,
371 session_info, nullblob);
373 reply_outbuf(req, 4, 0);
374 SSVAL(req->outbuf,smb_uid,sess_vuid);
376 if (sess_vuid == UID_FIELD_INVALID ) {
377 ret = NT_STATUS_LOGON_FAILURE;
379 /* current_user_info is changed on new vuid */
380 reload_services(sconn->msg_ctx, sconn->sock, True);
382 SSVAL(req->outbuf, smb_vwv3, 0);
384 if (security_session_user_level(session_info, NULL) < SECURITY_USER) {
385 SSVAL(req->outbuf,smb_vwv2,1);
388 SSVAL(req->outbuf, smb_uid, sess_vuid);
390 /* Successful logon. Keep this vuid. */
391 *p_invalidate_vuid = False;
394 /* wrap that up in a nice GSS-API wrapping */
395 if (NT_STATUS_IS_OK(ret)) {
396 ap_rep_wrapped = spnego_gen_krb5_wrap(talloc_tos(), ap_rep,
399 ap_rep_wrapped = data_blob_null;
401 response = spnego_gen_auth_response(talloc_tos(), &ap_rep_wrapped, ret,
403 reply_sesssetup_blob(req, response, ret);
405 data_blob_free(&ap_rep);
406 data_blob_free(&ap_rep_wrapped);
407 data_blob_free(&response);
408 TALLOC_FREE(mem_ctx);
413 /****************************************************************************
414 Send a session setup reply, wrapped in SPNEGO.
415 Get vuid and check first.
416 End the NTLMSSP exchange context if we are OK/complete fail
417 This should be split into two functions, one to handle each
418 leg of the NTLM auth steps.
419 ***************************************************************************/
421 static void reply_spnego_ntlmssp(struct smb_request *req,
423 struct auth_ntlmssp_state **auth_ntlmssp_state,
424 DATA_BLOB *ntlmssp_blob, NTSTATUS nt_status,
428 bool do_invalidate = true;
430 struct auth_session_info *session_info = NULL;
431 struct smbd_server_connection *sconn = req->sconn;
433 if (NT_STATUS_IS_OK(nt_status)) {
434 nt_status = auth_ntlmssp_session_info(talloc_tos(),
435 (*auth_ntlmssp_state), &session_info);
438 reply_outbuf(req, 4, 0);
440 SSVAL(req->outbuf, smb_uid, vuid);
442 if (NT_STATUS_IS_OK(nt_status)) {
443 DATA_BLOB nullblob = data_blob_null;
445 if (!is_partial_auth_vuid(sconn, vuid)) {
446 nt_status = NT_STATUS_LOGON_FAILURE;
450 /* register_existing_vuid keeps the server info */
451 if (register_existing_vuid(sconn, vuid,
452 session_info, nullblob) !=
454 /* The problem is, *auth_ntlmssp_state points
455 * into the vuser this will have
456 * talloc_free()'ed in
457 * register_existing_vuid() */
458 do_invalidate = false;
459 nt_status = NT_STATUS_LOGON_FAILURE;
463 /* current_user_info is changed on new vuid */
464 reload_services(sconn->msg_ctx, sconn->sock, True);
466 SSVAL(req->outbuf, smb_vwv3, 0);
468 if (security_session_user_level(session_info, NULL) < SECURITY_USER) {
469 SSVAL(req->outbuf,smb_vwv2,1);
476 response = spnego_gen_auth_response(talloc_tos(),
480 response = *ntlmssp_blob;
483 reply_sesssetup_blob(req, response, nt_status);
485 data_blob_free(&response);
488 /* NT_STATUS_MORE_PROCESSING_REQUIRED from our NTLMSSP code tells us,
489 and the other end, that we are not finished yet. */
491 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
492 /* NB. This is *NOT* an error case. JRA */
494 TALLOC_FREE(*auth_ntlmssp_state);
495 if (!NT_STATUS_IS_OK(nt_status)) {
496 /* Kill the intermediate vuid */
497 invalidate_vuid(sconn, vuid);
503 /****************************************************************************
504 Is this a krb5 mechanism ?
505 ****************************************************************************/
507 NTSTATUS parse_spnego_mechanisms(TALLOC_CTX *ctx,
509 DATA_BLOB *pblob_out,
512 char *OIDs[ASN1_MAX_OIDS];
514 NTSTATUS ret = NT_STATUS_OK;
516 *kerb_mechOID = NULL;
518 /* parse out the OIDs and the first sec blob */
519 if (!spnego_parse_negTokenInit(ctx, blob_in, OIDs, NULL, pblob_out) ||
521 return NT_STATUS_LOGON_FAILURE;
524 /* only look at the first OID for determining the mechToken --
525 according to RFC2478, we should choose the one we want
526 and renegotiate, but i smell a client bug here..
528 Problem observed when connecting to a member (samba box)
529 of an AD domain as a user in a Samba domain. Samba member
530 server sent back krb5/mskrb5/ntlmssp as mechtypes, but the
531 client (2ksp3) replied with ntlmssp/mskrb5/krb5 and an
532 NTLMSSP mechtoken. --jerry */
535 if (strcmp(OID_KERBEROS5, OIDs[0]) == 0 ||
536 strcmp(OID_KERBEROS5_OLD, OIDs[0]) == 0) {
537 *kerb_mechOID = talloc_strdup(ctx, OIDs[0]);
538 if (*kerb_mechOID == NULL) {
539 ret = NT_STATUS_NO_MEMORY;
544 for (i=0;OIDs[i];i++) {
545 DEBUG(5,("parse_spnego_mechanisms: Got OID %s\n", OIDs[i]));
546 talloc_free(OIDs[i]);
551 /****************************************************************************
552 Fall back from krb5 to NTLMSSP.
553 ****************************************************************************/
555 static void reply_spnego_downgrade_to_ntlmssp(struct smb_request *req,
560 reply_outbuf(req, 4, 0);
561 SSVAL(req->outbuf,smb_uid,vuid);
563 DEBUG(3,("reply_spnego_downgrade_to_ntlmssp: Got krb5 ticket in SPNEGO "
564 "but set to downgrade to NTLMSSP\n"));
566 response = spnego_gen_auth_response(talloc_tos(), NULL,
567 NT_STATUS_MORE_PROCESSING_REQUIRED,
569 reply_sesssetup_blob(req, response, NT_STATUS_MORE_PROCESSING_REQUIRED);
570 data_blob_free(&response);
573 /****************************************************************************
574 Reply to a session setup spnego negotiate packet.
575 ****************************************************************************/
577 static void reply_spnego_negotiate(struct smb_request *req,
580 struct auth_ntlmssp_state **auth_ntlmssp_state)
584 char *kerb_mech = NULL;
586 struct smbd_server_connection *sconn = req->sconn;
588 status = parse_spnego_mechanisms(talloc_tos(),
589 blob1, &secblob, &kerb_mech);
590 if (!NT_STATUS_IS_OK(status)) {
591 /* Kill the intermediate vuid */
592 invalidate_vuid(sconn, vuid);
593 reply_nterror(req, nt_status_squash(status));
597 DEBUG(3,("reply_spnego_negotiate: Got secblob of size %lu\n",
598 (unsigned long)secblob.length));
601 if (kerb_mech && ((lp_security()==SEC_ADS) ||
602 USE_KERBEROS_KEYTAB) ) {
603 bool destroy_vuid = True;
604 reply_spnego_kerberos(req, &secblob, kerb_mech,
605 vuid, &destroy_vuid);
606 data_blob_free(&secblob);
608 /* Kill the intermediate vuid */
609 invalidate_vuid(sconn, vuid);
611 TALLOC_FREE(kerb_mech);
616 TALLOC_FREE(*auth_ntlmssp_state);
619 data_blob_free(&secblob);
620 /* The mechtoken is a krb5 ticket, but
621 * we need to fall back to NTLM. */
622 reply_spnego_downgrade_to_ntlmssp(req, vuid);
623 TALLOC_FREE(kerb_mech);
627 status = auth_ntlmssp_prepare(sconn->remote_address,
629 if (!NT_STATUS_IS_OK(status)) {
630 /* Kill the intermediate vuid */
631 invalidate_vuid(sconn, vuid);
632 reply_nterror(req, nt_status_squash(status));
636 auth_ntlmssp_want_feature(*auth_ntlmssp_state, NTLMSSP_FEATURE_SESSION_KEY);
638 status = auth_ntlmssp_start(*auth_ntlmssp_state);
639 if (!NT_STATUS_IS_OK(status)) {
640 /* Kill the intermediate vuid */
641 invalidate_vuid(sconn, vuid);
642 reply_nterror(req, nt_status_squash(status));
646 status = auth_ntlmssp_update(*auth_ntlmssp_state, talloc_tos(),
649 data_blob_free(&secblob);
651 reply_spnego_ntlmssp(req, vuid, auth_ntlmssp_state,
652 &chal, status, OID_NTLMSSP, true);
654 data_blob_free(&chal);
656 /* already replied */
660 /****************************************************************************
661 Reply to a session setup spnego auth packet.
662 ****************************************************************************/
664 static void reply_spnego_auth(struct smb_request *req,
667 struct auth_ntlmssp_state **auth_ntlmssp_state)
669 DATA_BLOB auth = data_blob_null;
670 DATA_BLOB auth_reply = data_blob_null;
671 DATA_BLOB secblob = data_blob_null;
672 NTSTATUS status = NT_STATUS_LOGON_FAILURE;
673 struct smbd_server_connection *sconn = req->sconn;
675 if (!spnego_parse_auth(talloc_tos(), blob1, &auth)) {
677 file_save("auth.dat", blob1.data, blob1.length);
679 /* Kill the intermediate vuid */
680 invalidate_vuid(sconn, vuid);
682 reply_nterror(req, nt_status_squash(
683 NT_STATUS_LOGON_FAILURE));
687 if (auth.data[0] == ASN1_APPLICATION(0)) {
688 /* Might be a second negTokenTarg packet */
689 char *kerb_mech = NULL;
691 status = parse_spnego_mechanisms(talloc_tos(),
692 auth, &secblob, &kerb_mech);
694 if (!NT_STATUS_IS_OK(status)) {
695 /* Kill the intermediate vuid */
696 invalidate_vuid(sconn, vuid);
697 reply_nterror(req, nt_status_squash(status));
701 DEBUG(3,("reply_spnego_auth: Got secblob of size %lu\n",
702 (unsigned long)secblob.length));
704 if (kerb_mech && ((lp_security()==SEC_ADS) ||
705 USE_KERBEROS_KEYTAB)) {
706 bool destroy_vuid = True;
707 reply_spnego_kerberos(req, &secblob, kerb_mech,
708 vuid, &destroy_vuid);
709 data_blob_free(&secblob);
710 data_blob_free(&auth);
712 /* Kill the intermediate vuid */
713 invalidate_vuid(sconn, vuid);
715 TALLOC_FREE(kerb_mech);
719 /* Can't blunder into NTLMSSP auth if we have
723 /* Kill the intermediate vuid */
724 invalidate_vuid(sconn, vuid);
725 DEBUG(3,("reply_spnego_auth: network "
726 "misconfiguration, client sent us a "
727 "krb5 ticket and kerberos security "
729 reply_nterror(req, nt_status_squash(
730 NT_STATUS_LOGON_FAILURE));
731 TALLOC_FREE(kerb_mech);
735 /* If we get here it wasn't a negTokenTarg auth packet. */
736 data_blob_free(&secblob);
738 if (!*auth_ntlmssp_state) {
739 status = auth_ntlmssp_prepare(sconn->remote_address,
741 if (!NT_STATUS_IS_OK(status)) {
742 /* Kill the intermediate vuid */
743 invalidate_vuid(sconn, vuid);
744 reply_nterror(req, nt_status_squash(status));
748 auth_ntlmssp_want_feature(*auth_ntlmssp_state, NTLMSSP_FEATURE_SESSION_KEY);
750 status = auth_ntlmssp_start(*auth_ntlmssp_state);
751 if (!NT_STATUS_IS_OK(status)) {
752 /* Kill the intermediate vuid */
753 invalidate_vuid(sconn, vuid);
754 reply_nterror(req, nt_status_squash(status));
759 status = auth_ntlmssp_update(*auth_ntlmssp_state, talloc_tos(),
762 data_blob_free(&auth);
764 /* Don't send the mechid as we've already sent this (RFC4178). */
766 reply_spnego_ntlmssp(req, vuid,
768 &auth_reply, status, NULL, true);
770 data_blob_free(&auth_reply);
772 /* and tell smbd that we have already replied to this packet */
776 /****************************************************************************
777 Delete an entry on the list.
778 ****************************************************************************/
780 static void delete_partial_auth(struct smbd_server_connection *sconn,
781 struct pending_auth_data *pad)
786 DLIST_REMOVE(sconn->smb1.pd_list, pad);
787 data_blob_free(&pad->partial_data);
791 /****************************************************************************
792 Search for a partial SPNEGO auth fragment matching an smbpid.
793 ****************************************************************************/
795 static struct pending_auth_data *get_pending_auth_data(
796 struct smbd_server_connection *sconn,
799 struct pending_auth_data *pad;
801 * NOTE: using the smbpid here is completely wrong...
803 * 3.3.5.3 Receiving an SMB_COM_SESSION_SETUP_ANDX Request
805 for (pad = sconn->smb1.pd_list; pad; pad = pad->next) {
806 if (pad->smbpid == smbpid) {
813 /****************************************************************************
814 Check the size of an SPNEGO blob. If we need more return
815 NT_STATUS_MORE_PROCESSING_REQUIRED, else return NT_STATUS_OK. Don't allow
816 the blob to be more than 64k.
817 ****************************************************************************/
819 static NTSTATUS check_spnego_blob_complete(struct smbd_server_connection *sconn,
820 uint16 smbpid, uint16 vuid,
823 struct pending_auth_data *pad = NULL;
825 size_t needed_len = 0;
827 pad = get_pending_auth_data(sconn, smbpid);
829 /* Ensure we have some data. */
830 if (pblob->length == 0) {
831 /* Caller can cope. */
832 DEBUG(2,("check_spnego_blob_complete: zero blob length !\n"));
833 delete_partial_auth(sconn, pad);
837 /* Were we waiting for more data ? */
840 size_t copy_len = MIN(65536, pblob->length);
842 /* Integer wrap paranoia.... */
844 if (pad->partial_data.length + copy_len <
845 pad->partial_data.length ||
846 pad->partial_data.length + copy_len < copy_len) {
848 DEBUG(2,("check_spnego_blob_complete: integer wrap "
849 "pad->partial_data.length = %u, "
851 (unsigned int)pad->partial_data.length,
852 (unsigned int)copy_len ));
854 delete_partial_auth(sconn, pad);
855 return NT_STATUS_INVALID_PARAMETER;
858 DEBUG(10,("check_spnego_blob_complete: "
859 "pad->partial_data.length = %u, "
860 "pad->needed_len = %u, "
862 "pblob->length = %u,\n",
863 (unsigned int)pad->partial_data.length,
864 (unsigned int)pad->needed_len,
865 (unsigned int)copy_len,
866 (unsigned int)pblob->length ));
868 tmp_blob = data_blob(NULL,
869 pad->partial_data.length + copy_len);
871 /* Concatenate the two (up to copy_len) bytes. */
872 memcpy(tmp_blob.data,
873 pad->partial_data.data,
874 pad->partial_data.length);
875 memcpy(tmp_blob.data + pad->partial_data.length,
879 /* Replace the partial data. */
880 data_blob_free(&pad->partial_data);
881 pad->partial_data = tmp_blob;
882 ZERO_STRUCT(tmp_blob);
885 if (pblob->length >= pad->needed_len) {
886 /* Yes, replace pblob. */
887 data_blob_free(pblob);
888 *pblob = pad->partial_data;
889 ZERO_STRUCT(pad->partial_data);
890 delete_partial_auth(sconn, pad);
894 /* Still need more data. */
895 pad->needed_len -= copy_len;
896 return NT_STATUS_MORE_PROCESSING_REQUIRED;
899 if ((pblob->data[0] != ASN1_APPLICATION(0)) &&
900 (pblob->data[0] != ASN1_CONTEXT(1))) {
901 /* Not something we can determine the
907 /* This is a new SPNEGO sessionsetup - see if
908 * the data given in this blob is enough.
911 data = asn1_init(NULL);
913 return NT_STATUS_NO_MEMORY;
916 asn1_load(data, *pblob);
917 if (asn1_start_tag(data, pblob->data[0])) {
918 /* asn1_start_tag checks if the given
919 length of the blob is enough to complete
920 the tag. If it returns true we know
921 there is nothing to do - the blob is
927 if (data->nesting == NULL) {
928 /* Incorrect tag, allocation failed,
929 or reading the tag length failed.
930 Let the caller catch. */
935 /* Here we know asn1_start_tag() has set data->has_error to true.
936 asn1_tag_remaining() will have failed due to the given blob
937 being too short. We need to work out how short. */
939 /* Integer wrap paranoia.... */
941 if (data->nesting->taglen + data->nesting->start < data->nesting->taglen ||
942 data->nesting->taglen + data->nesting->start < data->nesting->start) {
944 DEBUG(2,("check_spnego_blob_complete: integer wrap "
945 "data.nesting->taglen = %u, "
946 "data.nesting->start = %u\n",
947 (unsigned int)data->nesting->taglen,
948 (unsigned int)data->nesting->start ));
951 return NT_STATUS_INVALID_PARAMETER;
954 /* Total length of the needed asn1 is the tag length
955 * plus the current offset. */
957 needed_len = data->nesting->taglen + data->nesting->start;
960 DEBUG(10,("check_spnego_blob_complete: needed_len = %u, "
961 "pblob->length = %u\n",
962 (unsigned int)needed_len,
963 (unsigned int)pblob->length ));
965 if (needed_len <= pblob->length) {
966 /* Nothing to do - blob is complete. */
967 /* THIS SHOULD NOT HAPPEN - asn1_start_tag()
968 above should have caught this !!! */
969 DEBUG(0,("check_spnego_blob_complete: logic "
970 "error (needed_len = %u, "
971 "pblob->length = %u).\n",
972 (unsigned int)needed_len,
973 (unsigned int)pblob->length ));
977 /* Refuse the blob if it's bigger than 64k. */
978 if (needed_len > 65536) {
979 DEBUG(2,("check_spnego_blob_complete: needed_len "
981 (unsigned int)needed_len ));
982 return NT_STATUS_INVALID_PARAMETER;
985 /* We must store this blob until complete. */
986 if (!(pad = SMB_MALLOC_P(struct pending_auth_data))) {
987 return NT_STATUS_NO_MEMORY;
989 pad->needed_len = needed_len - pblob->length;
990 pad->partial_data = data_blob(pblob->data, pblob->length);
991 if (pad->partial_data.data == NULL) {
993 return NT_STATUS_NO_MEMORY;
995 pad->smbpid = smbpid;
997 DLIST_ADD(sconn->smb1.pd_list, pad);
999 return NT_STATUS_MORE_PROCESSING_REQUIRED;
1002 /****************************************************************************
1003 Reply to a session setup command.
1004 conn POINTER CAN BE NULL HERE !
1005 ****************************************************************************/
1007 static void reply_sesssetup_and_X_spnego(struct smb_request *req)
1013 const char *native_os;
1014 const char *native_lanman;
1015 const char *primary_domain;
1017 uint16 data_blob_len = SVAL(req->vwv+7, 0);
1018 enum remote_arch_types ra_type = get_remote_arch();
1019 int vuid = req->vuid;
1020 user_struct *vuser = NULL;
1021 NTSTATUS status = NT_STATUS_OK;
1022 uint16 smbpid = req->smbpid;
1023 struct smbd_server_connection *sconn = req->sconn;
1025 DEBUG(3,("Doing spnego session setup\n"));
1027 if (global_client_caps == 0) {
1028 global_client_caps = IVAL(req->vwv+10, 0);
1030 if (!(global_client_caps & CAP_STATUS32)) {
1031 remove_from_common_flags2(FLAGS2_32_BIT_ERROR_CODES);
1038 if (data_blob_len == 0) {
1039 /* an invalid request */
1040 reply_nterror(req, nt_status_squash(NT_STATUS_LOGON_FAILURE));
1044 bufrem = smbreq_bufrem(req, p);
1045 /* pull the spnego blob */
1046 blob1 = data_blob(p, MIN(bufrem, data_blob_len));
1049 file_save("negotiate.dat", blob1.data, blob1.length);
1052 p2 = (const char *)req->buf + blob1.length;
1054 p2 += srvstr_pull_req_talloc(talloc_tos(), req, &tmp, p2,
1056 native_os = tmp ? tmp : "";
1058 p2 += srvstr_pull_req_talloc(talloc_tos(), req, &tmp, p2,
1060 native_lanman = tmp ? tmp : "";
1062 p2 += srvstr_pull_req_talloc(talloc_tos(), req, &tmp, p2,
1064 primary_domain = tmp ? tmp : "";
1066 DEBUG(3,("NativeOS=[%s] NativeLanMan=[%s] PrimaryDomain=[%s]\n",
1067 native_os, native_lanman, primary_domain));
1069 if ( ra_type == RA_WIN2K ) {
1070 /* Vista sets neither the OS or lanman strings */
1072 if ( !strlen(native_os) && !strlen(native_lanman) )
1073 set_remote_arch(RA_VISTA);
1075 /* Windows 2003 doesn't set the native lanman string,
1076 but does set primary domain which is a bug I think */
1078 if ( !strlen(native_lanman) ) {
1079 ra_lanman_string( primary_domain );
1081 ra_lanman_string( native_lanman );
1083 } else if ( ra_type == RA_VISTA ) {
1084 if ( strncmp(native_os, "Mac OS X", 8) == 0 ) {
1085 set_remote_arch(RA_OSX);
1089 /* Did we get a valid vuid ? */
1090 if (!is_partial_auth_vuid(sconn, vuid)) {
1091 /* No, then try and see if this is an intermediate sessionsetup
1092 * for a large SPNEGO packet. */
1093 struct pending_auth_data *pad;
1094 pad = get_pending_auth_data(sconn, smbpid);
1096 DEBUG(10,("reply_sesssetup_and_X_spnego: found "
1097 "pending vuid %u\n",
1098 (unsigned int)pad->vuid ));
1103 /* Do we have a valid vuid now ? */
1104 if (!is_partial_auth_vuid(sconn, vuid)) {
1105 /* No, start a new authentication setup. */
1106 vuid = register_initial_vuid(sconn);
1107 if (vuid == UID_FIELD_INVALID) {
1108 data_blob_free(&blob1);
1109 reply_nterror(req, nt_status_squash(
1110 NT_STATUS_INVALID_PARAMETER));
1115 vuser = get_partial_auth_user_struct(sconn, vuid);
1116 /* This MUST be valid. */
1118 smb_panic("reply_sesssetup_and_X_spnego: invalid vuid.");
1121 /* Large (greater than 4k) SPNEGO blobs are split into multiple
1122 * sessionsetup requests as the Windows limit on the security blob
1123 * field is 4k. Bug #4400. JRA.
1126 status = check_spnego_blob_complete(sconn, smbpid, vuid, &blob1);
1127 if (!NT_STATUS_IS_OK(status)) {
1128 if (!NT_STATUS_EQUAL(status,
1129 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1130 /* Real error - kill the intermediate vuid */
1131 invalidate_vuid(sconn, vuid);
1133 data_blob_free(&blob1);
1134 reply_nterror(req, nt_status_squash(status));
1138 /* Handle either raw NTLMSSP or hand off the whole blob to
1139 * GENSEC. The processing at this layer is essentially
1140 * identical regardless. In particular, both rely only on the
1141 * status code (not the contents of the packet) and do not
1142 * wrap the result */
1143 if (sconn->use_gensec_hook || ntlmssp_blob_matches_magic(&blob1)) {
1146 if (!vuser->auth_ntlmssp_state) {
1147 status = auth_ntlmssp_prepare(sconn->remote_address,
1148 &vuser->auth_ntlmssp_state);
1149 if (!NT_STATUS_IS_OK(status)) {
1150 /* Kill the intermediate vuid */
1151 invalidate_vuid(sconn, vuid);
1152 data_blob_free(&blob1);
1153 reply_nterror(req, nt_status_squash(status));
1157 auth_ntlmssp_want_feature(vuser->auth_ntlmssp_state, NTLMSSP_FEATURE_SESSION_KEY);
1159 if (sconn->use_gensec_hook) {
1160 status = auth_generic_start(vuser->auth_ntlmssp_state, GENSEC_OID_SPNEGO);
1162 status = auth_ntlmssp_start(vuser->auth_ntlmssp_state);
1164 if (!NT_STATUS_IS_OK(status)) {
1165 /* Kill the intermediate vuid */
1166 invalidate_vuid(sconn, vuid);
1167 data_blob_free(&blob1);
1168 reply_nterror(req, nt_status_squash(status));
1173 status = auth_ntlmssp_update(vuser->auth_ntlmssp_state,
1177 data_blob_free(&blob1);
1179 reply_spnego_ntlmssp(req, vuid,
1180 &vuser->auth_ntlmssp_state,
1181 &chal, status, NULL, false);
1182 data_blob_free(&chal);
1186 if (blob1.data[0] == ASN1_APPLICATION(0)) {
1188 /* its a negTokenTarg packet */
1190 reply_spnego_negotiate(req, vuid, blob1,
1191 &vuser->auth_ntlmssp_state);
1192 data_blob_free(&blob1);
1196 if (blob1.data[0] == ASN1_CONTEXT(1)) {
1198 /* its a auth packet */
1200 reply_spnego_auth(req, vuid, blob1,
1201 &vuser->auth_ntlmssp_state);
1202 data_blob_free(&blob1);
1206 /* what sort of packet is this? */
1207 DEBUG(1,("Unknown packet in reply_sesssetup_and_X_spnego\n"));
1209 data_blob_free(&blob1);
1211 reply_nterror(req, nt_status_squash(NT_STATUS_LOGON_FAILURE));
1214 /****************************************************************************
1215 On new VC == 0, shutdown *all* old connections and users.
1216 It seems that only NT4.x does this. At W2K and above (XP etc.).
1217 a new session setup with VC==0 is ignored.
1218 ****************************************************************************/
1220 struct shutdown_state {
1222 struct messaging_context *msg_ctx;
1225 static int shutdown_other_smbds(const struct connections_key *key,
1226 const struct connections_data *crec,
1229 struct shutdown_state *state = (struct shutdown_state *)private_data;
1231 DEBUG(10, ("shutdown_other_smbds: %s, %s\n",
1232 server_id_str(talloc_tos(), &crec->pid), crec->addr));
1234 if (!process_exists(crec->pid)) {
1235 DEBUG(10, ("process does not exist\n"));
1239 if (procid_is_me(&crec->pid)) {
1240 DEBUG(10, ("It's me\n"));
1244 if (strcmp(state->ip, crec->addr) != 0) {
1245 DEBUG(10, ("%s does not match %s\n", state->ip, crec->addr));
1249 DEBUG(1, ("shutdown_other_smbds: shutting down pid %u "
1250 "(IP %s)\n", (unsigned int)procid_to_pid(&crec->pid),
1253 messaging_send(state->msg_ctx, crec->pid, MSG_SHUTDOWN,
1258 static void setup_new_vc_session(struct smbd_server_connection *sconn)
1260 DEBUG(2,("setup_new_vc_session: New VC == 0, if NT4.x "
1261 "compatible we would close all old resources.\n"));
1264 invalidate_all_vuids();
1266 if (lp_reset_on_zero_vc()) {
1268 struct shutdown_state state;
1270 addr = tsocket_address_inet_addr_string(
1271 sconn->remote_address, talloc_tos());
1276 state.msg_ctx = sconn->msg_ctx;
1277 connections_forall_read(shutdown_other_smbds, &state);
1282 /****************************************************************************
1283 Reply to a session setup command.
1284 ****************************************************************************/
1286 void reply_sesssetup_and_X(struct smb_request *req)
1292 DATA_BLOB plaintext_password;
1295 fstring sub_user; /* Sanitised username for substituion */
1297 const char *native_os;
1298 const char *native_lanman;
1299 const char *primary_domain;
1300 struct auth_usersupplied_info *user_info = NULL;
1301 struct auth_serversupplied_info *server_info = NULL;
1302 struct auth_session_info *session_info = NULL;
1303 uint16 smb_flag2 = req->flags2;
1306 struct smbd_server_connection *sconn = req->sconn;
1308 bool doencrypt = sconn->smb1.negprot.encrypted_passwords;
1310 START_PROFILE(SMBsesssetupX);
1312 ZERO_STRUCT(lm_resp);
1313 ZERO_STRUCT(nt_resp);
1314 ZERO_STRUCT(plaintext_password);
1316 DEBUG(3,("wct=%d flg2=0x%x\n", req->wct, req->flags2));
1318 /* a SPNEGO session setup has 12 command words, whereas a normal
1319 NT1 session setup has 13. See the cifs spec. */
1320 if (req->wct == 12 &&
1321 (req->flags2 & FLAGS2_EXTENDED_SECURITY)) {
1323 if (!sconn->smb1.negprot.spnego) {
1324 DEBUG(0,("reply_sesssetup_and_X: Rejecting attempt "
1325 "at SPNEGO session setup when it was not "
1327 reply_nterror(req, nt_status_squash(
1328 NT_STATUS_LOGON_FAILURE));
1329 END_PROFILE(SMBsesssetupX);
1333 if (SVAL(req->vwv+4, 0) == 0) {
1334 setup_new_vc_session(req->sconn);
1337 reply_sesssetup_and_X_spnego(req);
1338 END_PROFILE(SMBsesssetupX);
1342 smb_bufsize = SVAL(req->vwv+2, 0);
1344 if (get_Protocol() < PROTOCOL_NT1) {
1345 uint16 passlen1 = SVAL(req->vwv+7, 0);
1347 /* Never do NT status codes with protocols before NT1 as we
1348 * don't get client caps. */
1349 remove_from_common_flags2(FLAGS2_32_BIT_ERROR_CODES);
1351 if ((passlen1 > MAX_PASS_LEN) || (passlen1 > req->buflen)) {
1352 reply_nterror(req, nt_status_squash(
1353 NT_STATUS_INVALID_PARAMETER));
1354 END_PROFILE(SMBsesssetupX);
1359 lm_resp = data_blob(req->buf, passlen1);
1361 plaintext_password = data_blob(req->buf, passlen1+1);
1362 /* Ensure null termination */
1363 plaintext_password.data[passlen1] = 0;
1366 srvstr_pull_req_talloc(talloc_tos(), req, &tmp,
1367 req->buf + passlen1, STR_TERMINATE);
1368 user = tmp ? tmp : "";
1373 uint16 passlen1 = SVAL(req->vwv+7, 0);
1374 uint16 passlen2 = SVAL(req->vwv+8, 0);
1375 enum remote_arch_types ra_type = get_remote_arch();
1376 const uint8_t *p = req->buf;
1377 const uint8_t *save_p = req->buf;
1381 if(global_client_caps == 0) {
1382 global_client_caps = IVAL(req->vwv+11, 0);
1384 if (!(global_client_caps & CAP_STATUS32)) {
1385 remove_from_common_flags2(
1386 FLAGS2_32_BIT_ERROR_CODES);
1389 /* client_caps is used as final determination if
1390 * client is NT or Win95. This is needed to return
1391 * the correct error codes in some circumstances.
1394 if(ra_type == RA_WINNT || ra_type == RA_WIN2K ||
1395 ra_type == RA_WIN95) {
1396 if(!(global_client_caps & (CAP_NT_SMBS|
1398 set_remote_arch( RA_WIN95);
1404 /* both Win95 and WinNT stuff up the password
1405 * lengths for non-encrypting systems. Uggh.
1407 if passlen1==24 its a win95 system, and its setting
1408 the password length incorrectly. Luckily it still
1409 works with the default code because Win95 will null
1410 terminate the password anyway
1412 if passlen1>0 and passlen2>0 then maybe its a NT box
1413 and its setting passlen2 to some random value which
1414 really stuffs things up. we need to fix that one. */
1416 if (passlen1 > 0 && passlen2 > 0 && passlen2 != 24 &&
1422 /* check for nasty tricks */
1423 if (passlen1 > MAX_PASS_LEN
1424 || passlen1 > smbreq_bufrem(req, p)) {
1425 reply_nterror(req, nt_status_squash(
1426 NT_STATUS_INVALID_PARAMETER));
1427 END_PROFILE(SMBsesssetupX);
1431 if (passlen2 > MAX_PASS_LEN
1432 || passlen2 > smbreq_bufrem(req, p+passlen1)) {
1433 reply_nterror(req, nt_status_squash(
1434 NT_STATUS_INVALID_PARAMETER));
1435 END_PROFILE(SMBsesssetupX);
1439 /* Save the lanman2 password and the NT md4 password. */
1441 if ((doencrypt) && (passlen1 != 0) && (passlen1 != 24)) {
1446 lm_resp = data_blob(p, passlen1);
1447 nt_resp = data_blob(p+passlen1, passlen2);
1448 } else if (lp_security() != SEC_SHARE) {
1450 * In share level we should ignore any passwords, so
1451 * only read them if we're not.
1454 bool unic= smb_flag2 & FLAGS2_UNICODE_STRINGS;
1456 if (unic && (passlen2 == 0) && passlen1) {
1457 /* Only a ascii plaintext password was sent. */
1458 (void)srvstr_pull_talloc(talloc_tos(),
1464 STR_TERMINATE|STR_ASCII);
1466 (void)srvstr_pull_talloc(talloc_tos(),
1471 unic ? passlen2 : passlen1,
1475 reply_nterror(req, nt_status_squash(
1476 NT_STATUS_INVALID_PARAMETER));
1477 END_PROFILE(SMBsesssetupX);
1480 plaintext_password = data_blob(pass, strlen(pass)+1);
1483 p += passlen1 + passlen2;
1485 p += srvstr_pull_req_talloc(talloc_tos(), req, &tmp, p,
1487 user = tmp ? tmp : "";
1489 p += srvstr_pull_req_talloc(talloc_tos(), req, &tmp, p,
1491 domain = tmp ? tmp : "";
1493 p += srvstr_pull_req_talloc(talloc_tos(), req, &tmp, p,
1495 native_os = tmp ? tmp : "";
1497 p += srvstr_pull_req_talloc(talloc_tos(), req, &tmp, p,
1499 native_lanman = tmp ? tmp : "";
1501 /* not documented or decoded by Ethereal but there is one more
1502 * string in the extra bytes which is the same as the
1503 * PrimaryDomain when using extended security. Windows NT 4
1504 * and 2003 use this string to store the native lanman string.
1505 * Windows 9x does not include a string here at all so we have
1506 * to check if we have any extra bytes left */
1508 byte_count = SVAL(req->vwv+13, 0);
1509 if ( PTR_DIFF(p, save_p) < byte_count) {
1510 p += srvstr_pull_req_talloc(talloc_tos(), req, &tmp, p,
1512 primary_domain = tmp ? tmp : "";
1514 primary_domain = talloc_strdup(talloc_tos(), "null");
1517 DEBUG(3,("Domain=[%s] NativeOS=[%s] NativeLanMan=[%s] "
1518 "PrimaryDomain=[%s]\n",
1519 domain, native_os, native_lanman, primary_domain));
1521 if ( ra_type == RA_WIN2K ) {
1522 if ( strlen(native_lanman) == 0 )
1523 ra_lanman_string( primary_domain );
1525 ra_lanman_string( native_lanman );
1530 if (SVAL(req->vwv+4, 0) == 0) {
1531 setup_new_vc_session(req->sconn);
1534 DEBUG(3,("sesssetupX:name=[%s]\\[%s]@[%s]\n",
1535 domain, user, get_remote_machine_name()));
1538 if (sconn->smb1.negprot.spnego) {
1540 /* This has to be here, because this is a perfectly
1541 * valid behaviour for guest logons :-( */
1543 DEBUG(0,("reply_sesssetup_and_X: Rejecting attempt "
1544 "at 'normal' session setup after "
1545 "negotiating spnego.\n"));
1546 reply_nterror(req, nt_status_squash(
1547 NT_STATUS_LOGON_FAILURE));
1548 END_PROFILE(SMBsesssetupX);
1551 fstrcpy(sub_user, user);
1553 fstrcpy(sub_user, "");
1556 sub_set_smb_name(sub_user);
1558 reload_services(sconn->msg_ctx, sconn->sock, True);
1560 if (lp_security() == SEC_SHARE) {
1561 char *sub_user_mapped = NULL;
1562 /* In share level we should ignore any passwords */
1564 data_blob_free(&lm_resp);
1565 data_blob_free(&nt_resp);
1566 data_blob_clear_free(&plaintext_password);
1568 (void)map_username(talloc_tos(), sub_user, &sub_user_mapped);
1569 if (!sub_user_mapped) {
1570 reply_nterror(req, NT_STATUS_NO_MEMORY);
1571 END_PROFILE(SMBsesssetupX);
1574 fstrcpy(sub_user, sub_user_mapped);
1575 add_session_user(sconn, sub_user);
1576 add_session_workgroup(sconn, domain);
1577 /* Then force it to null for the benfit of the code below */
1583 nt_status = check_guest_password(sconn->remote_address, &server_info);
1585 } else if (doencrypt) {
1586 struct auth_context *negprot_auth_context = NULL;
1587 negprot_auth_context = sconn->smb1.negprot.auth_context;
1588 if (!negprot_auth_context) {
1589 DEBUG(0, ("reply_sesssetup_and_X: Attempted encrypted "
1590 "session setup without negprot denied!\n"));
1591 reply_nterror(req, nt_status_squash(
1592 NT_STATUS_LOGON_FAILURE));
1593 END_PROFILE(SMBsesssetupX);
1596 nt_status = make_user_info_for_reply_enc(&user_info, user,
1598 sconn->remote_address,
1600 if (NT_STATUS_IS_OK(nt_status)) {
1601 nt_status = negprot_auth_context->check_ntlm_password(
1602 negprot_auth_context,
1607 struct auth_context *plaintext_auth_context = NULL;
1609 nt_status = make_auth_context_subsystem(
1610 talloc_tos(), &plaintext_auth_context);
1612 if (NT_STATUS_IS_OK(nt_status)) {
1615 plaintext_auth_context->get_ntlm_challenge(
1616 plaintext_auth_context, chal);
1618 if (!make_user_info_for_reply(&user_info,
1620 sconn->remote_address,
1622 plaintext_password)) {
1623 nt_status = NT_STATUS_NO_MEMORY;
1626 if (NT_STATUS_IS_OK(nt_status)) {
1627 nt_status = plaintext_auth_context->check_ntlm_password(
1628 plaintext_auth_context,
1632 TALLOC_FREE(plaintext_auth_context);
1637 free_user_info(&user_info);
1639 if (!NT_STATUS_IS_OK(nt_status)) {
1640 nt_status = do_map_to_guest_server_info(nt_status, &server_info,
1644 if (!NT_STATUS_IS_OK(nt_status)) {
1645 data_blob_free(&nt_resp);
1646 data_blob_free(&lm_resp);
1647 data_blob_clear_free(&plaintext_password);
1648 reply_nterror(req, nt_status_squash(nt_status));
1649 END_PROFILE(SMBsesssetupX);
1653 nt_status = create_local_token(req, server_info, NULL, sub_user, &session_info);
1654 TALLOC_FREE(server_info);
1656 if (!NT_STATUS_IS_OK(nt_status)) {
1657 DEBUG(10, ("create_local_token failed: %s\n",
1658 nt_errstr(nt_status)));
1659 data_blob_free(&nt_resp);
1660 data_blob_free(&lm_resp);
1661 data_blob_clear_free(&plaintext_password);
1662 reply_nterror(req, nt_status_squash(nt_status));
1663 END_PROFILE(SMBsesssetupX);
1667 data_blob_clear_free(&plaintext_password);
1669 /* it's ok - setup a reply */
1670 reply_outbuf(req, 3, 0);
1671 if (get_Protocol() >= PROTOCOL_NT1) {
1672 push_signature(&req->outbuf);
1673 /* perhaps grab OS version here?? */
1676 if (security_session_user_level(session_info, NULL) < SECURITY_USER) {
1677 SSVAL(req->outbuf,smb_vwv2,1);
1680 /* register the name and uid as being validated, so further connections
1681 to a uid can get through without a password, on the same VC */
1683 if (lp_security() == SEC_SHARE) {
1684 sess_vuid = UID_FIELD_INVALID;
1685 TALLOC_FREE(session_info);
1687 /* Ignore the initial vuid. */
1688 sess_vuid = register_initial_vuid(sconn);
1689 if (sess_vuid == UID_FIELD_INVALID) {
1690 data_blob_free(&nt_resp);
1691 data_blob_free(&lm_resp);
1692 reply_nterror(req, nt_status_squash(
1693 NT_STATUS_LOGON_FAILURE));
1694 END_PROFILE(SMBsesssetupX);
1697 /* register_existing_vuid keeps the session_info */
1698 sess_vuid = register_existing_vuid(sconn, sess_vuid,
1700 nt_resp.data ? nt_resp : lm_resp);
1701 if (sess_vuid == UID_FIELD_INVALID) {
1702 data_blob_free(&nt_resp);
1703 data_blob_free(&lm_resp);
1704 reply_nterror(req, nt_status_squash(
1705 NT_STATUS_LOGON_FAILURE));
1706 END_PROFILE(SMBsesssetupX);
1710 /* current_user_info is changed on new vuid */
1711 reload_services(sconn->msg_ctx, sconn->sock, True);
1714 data_blob_free(&nt_resp);
1715 data_blob_free(&lm_resp);
1717 SSVAL(req->outbuf,smb_uid,sess_vuid);
1718 SSVAL(discard_const_p(char, req->inbuf),smb_uid,sess_vuid);
1719 req->vuid = sess_vuid;
1721 if (!sconn->smb1.sessions.done_sesssetup) {
1722 sconn->smb1.sessions.max_send =
1723 MIN(sconn->smb1.sessions.max_send,smb_bufsize);
1725 sconn->smb1.sessions.done_sesssetup = true;
1727 END_PROFILE(SMBsesssetupX);