source: branches/samba-3.0/source/smbd/password.c@ 124

Last change on this file since 124 was 124, checked in by Paul Smedley, 18 years ago

Update source to 3.0.28a
File size: 22.5 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3 Password and authentication handling
4 Copyright (C) Andrew Tridgell 1992-1998
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19*/
20
21#include "includes.h"
22
23/* users from session setup */
24static char *session_userlist = NULL;
25static int len_session_userlist = 0;
26/* workgroup from session setup. */
27static char *session_workgroup = NULL;
28
29/* this holds info on user ids that are already validated for this VC */
30static user_struct *validated_users;
31static int next_vuid = VUID_OFFSET;
32static int num_validated_vuids;
33
34/****************************************************************************
35 Check if a uid has been validated, and return an pointer to the user_struct
36 if it has. NULL if not. vuid is biased by an offset. This allows us to
37 tell random client vuid's (normally zero) from valid vuids.
38****************************************************************************/
39
40user_struct *get_valid_user_struct(uint16 vuid)
41{
42 user_struct *usp;
43 int count=0;
44
45 if (vuid == UID_FIELD_INVALID)
46 return NULL;
47
48 for (usp=validated_users;usp;usp=usp->next,count++) {
49 if (vuid == usp->vuid && usp->server_info) {
50 if (count > 10) {
51 DLIST_PROMOTE(validated_users, usp);
52 }
53 return usp;
54 }
55 }
56
57 return NULL;
58}
59
60/****************************************************************************
61 Get the user struct of a partial NTLMSSP login
62****************************************************************************/
63
64user_struct *get_partial_auth_user_struct(uint16 vuid)
65{
66 user_struct *usp;
67 int count=0;
68
69 if (vuid == UID_FIELD_INVALID)
70 return NULL;
71
72 for (usp=validated_users;usp;usp=usp->next,count++) {
73 if (vuid == usp->vuid && !usp->server_info) {
74 if (count > 10) {
75 DLIST_PROMOTE(validated_users, usp);
76 }
77 return usp;
78 }
79 }
80
81 return NULL;
82}
83
84/****************************************************************************
85 Invalidate a uid.
86****************************************************************************/
87
88void invalidate_vuid(uint16 vuid)
89{
90 user_struct *vuser = get_valid_user_struct(vuid);
91
92 if (vuser == NULL)
93 return;
94
95 SAFE_FREE(vuser->homedir);
96 SAFE_FREE(vuser->unix_homedir);
97 SAFE_FREE(vuser->logon_script);
98
99 if (vuser->auth_ntlmssp_state) {
100 auth_ntlmssp_end(&vuser->auth_ntlmssp_state);
101 }
102
103 session_yield(vuser);
104 SAFE_FREE(vuser->session_keystr);
105
106 TALLOC_FREE(vuser->server_info);
107
108 data_blob_free(&vuser->session_key);
109
110 DLIST_REMOVE(validated_users, vuser);
111
112 /* clear the vuid from the 'cache' on each connection, and
113 from the vuid 'owner' of connections */
114 conn_clear_vuid_cache(vuid);
115
116 SAFE_FREE(vuser->groups);
117 TALLOC_FREE(vuser->nt_user_token);
118
119 SAFE_FREE(vuser);
120 num_validated_vuids--;
121}
122
123void invalidate_intermediate_vuid(uint16 vuid)
124{
125 user_struct *vuser = get_partial_auth_user_struct(vuid);
126
127 if (vuser == NULL)
128 return;
129
130 if (vuser->auth_ntlmssp_state) {
131 auth_ntlmssp_end(&vuser->auth_ntlmssp_state);
132 }
133
134 DLIST_REMOVE(validated_users, vuser);
135
136 SAFE_FREE(vuser);
137 num_validated_vuids--;
138}
139
140/****************************************************************************
141 Invalidate all vuid entries for this process.
142****************************************************************************/
143
144void invalidate_all_vuids(void)
145{
146 user_struct *usp, *next=NULL;
147
148 for (usp=validated_users;usp;usp=next) {
149 next = usp->next;
150
151 invalidate_vuid(usp->vuid);
152 }
153}
154
155/**
156 * register that a valid login has been performed, establish 'session'.
157 * @param server_info The token returned from the authentication process.
158 * (now 'owned' by register_vuid)
159 *
160 * @param session_key The User session key for the login session (now also
161 * 'owned' by register_vuid)
162 *
163 * @param respose_blob The NT challenge-response, if available. (May be
164 * freed after this call)
165 *
166 * @param smb_name The untranslated name of the user
167 *
168 * @return Newly allocated vuid, biased by an offset. (This allows us to
169 * tell random client vuid's (normally zero) from valid vuids.)
170 *
171 */
172
173int register_vuid(auth_serversupplied_info *server_info,
174 DATA_BLOB session_key, DATA_BLOB response_blob,
175 const char *smb_name)
176{
177 user_struct *vuser = NULL;
178
179 /* Paranoia check. */
180 if(lp_security() == SEC_SHARE) {
181 smb_panic("Tried to register uid in security=share\n");
182 }
183
184 /* Limit allowed vuids to 16bits - VUID_OFFSET. */
185 if (num_validated_vuids >= 0xFFFF-VUID_OFFSET) {
186 data_blob_free(&session_key);
187 TALLOC_FREE(server_info);
188 return UID_FIELD_INVALID;
189 }
190
191 if((vuser = SMB_MALLOC_P(user_struct)) == NULL) {
192 DEBUG(0,("Failed to malloc users struct!\n"));
193 data_blob_free(&session_key);
194 TALLOC_FREE(server_info);
195 return UID_FIELD_INVALID;
196 }
197
198 ZERO_STRUCTP(vuser);
199
200 /* Allocate a free vuid. Yes this is a linear search... :-) */
201 while( (get_valid_user_struct(next_vuid) != NULL)
202 || (get_partial_auth_user_struct(next_vuid) != NULL) ) {
203 next_vuid++;
204 /* Check for vuid wrap. */
205 if (next_vuid == UID_FIELD_INVALID)
206 next_vuid = VUID_OFFSET;
207 }
208
209 DEBUG(10,("register_vuid: allocated vuid = %u\n",
210 (unsigned int)next_vuid ));
211
212 vuser->vuid = next_vuid;
213
214 if (!server_info) {
215 /*
216 * This happens in an unfinished NTLMSSP session setup. We
217 * need to allocate a vuid between the first and second calls
218 * to NTLMSSP.
219 */
220 next_vuid++;
221 num_validated_vuids++;
222
223 vuser->server_info = NULL;
224
225 DLIST_ADD(validated_users, vuser);
226
227 return vuser->vuid;
228 }
229
230 /* the next functions should be done by a SID mapping system (SMS) as
231 * the new real sam db won't have reference to unix uids or gids
232 */
233
234 vuser->uid = server_info->uid;
235 vuser->gid = server_info->gid;
236
237 vuser->n_groups = server_info->n_groups;
238 if (vuser->n_groups) {
239 if (!(vuser->groups = (gid_t *)memdup(server_info->groups,
240 sizeof(gid_t) *
241 vuser->n_groups))) {
242 DEBUG(0,("register_vuid: failed to memdup "
243 "vuser->groups\n"));
244 data_blob_free(&session_key);
245 free(vuser);
246 TALLOC_FREE(server_info);
247 return UID_FIELD_INVALID;
248 }
249 }
250
251 vuser->guest = server_info->guest;
252 fstrcpy(vuser->user.unix_name, server_info->unix_name);
253
254 /* This is a potentially untrusted username */
255 alpha_strcpy(vuser->user.smb_name, smb_name, ". _-$",
256 sizeof(vuser->user.smb_name));
257
258 fstrcpy(vuser->user.domain, pdb_get_domain(server_info->sam_account));
259 fstrcpy(vuser->user.full_name,
260 pdb_get_fullname(server_info->sam_account));
261
262 {
263 /* Keep the homedir handy */
264 const char *homedir =
265 pdb_get_homedir(server_info->sam_account);
266 const char *logon_script =
267 pdb_get_logon_script(server_info->sam_account);
268
269 if (!IS_SAM_DEFAULT(server_info->sam_account,
270 PDB_UNIXHOMEDIR)) {
271 const char *unix_homedir =
272 pdb_get_unix_homedir(server_info->sam_account);
273
274 if (unix_homedir) {
275 vuser->unix_homedir =
276 smb_xstrdup(unix_homedir);
277 }
278 } else {
279 struct passwd *passwd =
280 getpwnam_alloc(NULL, vuser->user.unix_name);
281 if (passwd) {
282 vuser->unix_homedir =
283 smb_xstrdup(passwd->pw_dir);
284 TALLOC_FREE(passwd);
285 }
286 }
287
288 if (homedir) {
289 vuser->homedir = smb_xstrdup(homedir);
290 }
291 if (logon_script) {
292 vuser->logon_script = smb_xstrdup(logon_script);
293 }
294 }
295
296 vuser->session_key = session_key;
297
298 DEBUG(10,("register_vuid: (%u,%u) %s %s %s guest=%d\n",
299 (unsigned int)vuser->uid,
300 (unsigned int)vuser->gid,
301 vuser->user.unix_name, vuser->user.smb_name,
302 vuser->user.domain, vuser->guest ));
303
304 DEBUG(3, ("User name: %s\tReal name: %s\n", vuser->user.unix_name,
305 vuser->user.full_name));
306
307 if (server_info->ptok) {
308 vuser->nt_user_token = dup_nt_token(NULL, server_info->ptok);
309 } else {
310 DEBUG(1, ("server_info does not contain a user_token - "
311 "cannot continue\n"));
312 TALLOC_FREE(server_info);
313 data_blob_free(&session_key);
314 SAFE_FREE(vuser->homedir);
315 SAFE_FREE(vuser->unix_homedir);
316 SAFE_FREE(vuser->logon_script);
317
318 SAFE_FREE(vuser);
319 return UID_FIELD_INVALID;
320 }
321
322 /* use this to keep tabs on all our info from the authentication */
323 vuser->server_info = server_info;
324
325 DEBUG(3,("UNIX uid %d is UNIX user %s, and will be vuid %u\n",
326 (int)vuser->uid,vuser->user.unix_name, vuser->vuid));
327
328 next_vuid++;
329 num_validated_vuids++;
330
331 DLIST_ADD(validated_users, vuser);
332
333 if (!session_claim(vuser)) {
334 DEBUG(1, ("Failed to claim session for vuid=%d\n",
335 vuser->vuid));
336 invalidate_vuid(vuser->vuid);
337 return UID_FIELD_INVALID;
338 }
339
340 /* Register a home dir service for this user iff
341
342 (a) This is not a guest connection,
343 (b) we have a home directory defined
344 (c) there s not an existing static share by that name
345
346 If a share exists by this name (autoloaded or not) reuse it . */
347
348 vuser->homes_snum = -1;
349
350#ifdef __OS2__
351 /* On OS/2 we use drive letters which have a colon. This is also the field
352 separator in master.passwd, so we use a $ instead of a colon for the drive
353 separator, ie e$/user instead of e:/user. This code simply exchanges any $
354 for a : in the user's homedir */
355 if (vuser->unix_homedir[1] == '$')
356 vuser->unix_homedir[1] = ':';
357#endif
358
359
360 if ( (!vuser->guest) && vuser->unix_homedir && *(vuser->unix_homedir))
361 {
362 int servicenumber = lp_servicenumber(vuser->user.unix_name);
363
364 if ( servicenumber == -1 ) {
365 DEBUG(3, ("Adding homes service for user '%s' using "
366 "home directory: '%s'\n",
367 vuser->user.unix_name, vuser->unix_homedir));
368 vuser->homes_snum =
369 add_home_service(vuser->user.unix_name,
370 vuser->user.unix_name,
371 vuser->unix_homedir);
372 } else {
373 DEBUG(3, ("Using static (or previously created) "
374 "service for user '%s'; path = '%s'\n",
375 vuser->user.unix_name,
376 lp_pathname(servicenumber) ));
377 vuser->homes_snum = servicenumber;
378 }
379 }
380
381 if (srv_is_signing_negotiated() && !vuser->guest &&
382 !srv_signing_started()) {
383 /* Try and turn on server signing on the first non-guest
384 * sessionsetup. */
385 srv_set_signing(vuser->session_key, response_blob);
386 }
387
388 /* fill in the current_user_info struct */
389 set_current_user_info( &vuser->user );
390
391
392 return vuser->vuid;
393}
394
395/****************************************************************************
396 Add a name to the session users list.
397****************************************************************************/
398
399void add_session_user(const char *user)
400{
401 fstring suser;
402 struct passwd *passwd;
403
404 if (!(passwd = Get_Pwnam(user)))
405 return;
406
407 fstrcpy(suser,passwd->pw_name);
408
409 if(!*suser)
410 return;
411
412 if( session_userlist && in_list(suser,session_userlist,False) )
413 return;
414
415 if( !session_userlist ||
416 (strlen(suser) + strlen(session_userlist) + 2 >=
417 len_session_userlist) ) {
418 char *newlist;
419
420 if (len_session_userlist > 128 * PSTRING_LEN) {
421 DEBUG(3,("add_session_user: session userlist already "
422 "too large.\n"));
423 return;
424 }
425 newlist = (char *)SMB_REALLOC_KEEP_OLD_ON_ERROR(
426 session_userlist,
427 len_session_userlist + PSTRING_LEN );
428 if( newlist == NULL ) {
429 DEBUG(1,("Unable to resize session_userlist\n"));
430 return;
431 }
432 if (!session_userlist) {
433 *newlist = '\0';
434 }
435 session_userlist = newlist;
436 len_session_userlist += PSTRING_LEN;
437 }
438
439 safe_strcat(session_userlist," ",len_session_userlist-1);
440 safe_strcat(session_userlist,suser,len_session_userlist-1);
441}
442
443/****************************************************************************
444 In security=share mode we need to store the client workgroup, as that's
445 what Vista uses for the NTLMv2 calculation.
446****************************************************************************/
447
448void add_session_workgroup(const char *workgroup)
449{
450 if (session_workgroup) {
451 SAFE_FREE(session_workgroup);
452 }
453 session_workgroup = smb_xstrdup(workgroup);
454}
455
456/****************************************************************************
457 In security=share mode we need to return the client workgroup, as that's
458 what Vista uses for the NTLMv2 calculation.
459****************************************************************************/
460
461const char *get_session_workgroup(void)
462{
463 return session_workgroup;
464}
465
466/****************************************************************************
467 Check if a user is in a netgroup user list. If at first we don't succeed,
468 try lower case.
469****************************************************************************/
470
471BOOL user_in_netgroup(const char *user, const char *ngname)
472{
473#ifdef HAVE_NETGROUP
474 static char *mydomain = NULL;
475 fstring lowercase_user;
476
477 if (mydomain == NULL)
478 yp_get_default_domain(&mydomain);
479
480 if(mydomain == NULL) {
481 DEBUG(5,("Unable to get default yp domain, let's try without specifying it\n"));
482 }
483
484 DEBUG(5,("looking for user %s of domain %s in netgroup %s\n",
485 user, mydomain?mydomain:"(ANY)", ngname));
486
487 if (innetgr(ngname, NULL, user, mydomain)) {
488 DEBUG(5,("user_in_netgroup: Found\n"));
489 return (True);
490 } else {
491
492 /*
493 * Ok, innetgr is case sensitive. Try once more with lowercase
494 * just in case. Attempt to fix #703. JRA.
495 */
496
497 fstrcpy(lowercase_user, user);
498 strlower_m(lowercase_user);
499
500 DEBUG(5,("looking for user %s of domain %s in netgroup %s\n",
501 lowercase_user, mydomain?mydomain:"(ANY)", ngname));
502
503 if (innetgr(ngname, NULL, lowercase_user, mydomain)) {
504 DEBUG(5,("user_in_netgroup: Found\n"));
505 return (True);
506 }
507 }
508#endif /* HAVE_NETGROUP */
509 return False;
510}
511
512/****************************************************************************
513 Check if a user is in a user list - can check combinations of UNIX
514 and netgroup lists.
515****************************************************************************/
516
517BOOL user_in_list(const char *user,const char **list)
518{
519 if (!list || !*list)
520 return False;
521
522 DEBUG(10,("user_in_list: checking user %s in list\n", user));
523
524 while (*list) {
525
526 DEBUG(10,("user_in_list: checking user |%s| against |%s|\n",
527 user, *list));
528
529 /*
530 * Check raw username.
531 */
532 if (strequal(user, *list))
533 return(True);
534
535 /*
536 * Now check to see if any combination
537 * of UNIX and netgroups has been specified.
538 */
539
540 if(**list == '@') {
541 /*
542 * Old behaviour. Check netgroup list
543 * followed by UNIX list.
544 */
545 if(user_in_netgroup(user, *list +1))
546 return True;
547 if(user_in_group(user, *list +1))
548 return True;
549 } else if (**list == '+') {
550
551 if((*(*list +1)) == '&') {
552 /*
553 * Search UNIX list followed by netgroup.
554 */
555 if(user_in_group(user, *list +2))
556 return True;
557 if(user_in_netgroup(user, *list +2))
558 return True;
559
560 } else {
561
562 /*
563 * Just search UNIX list.
564 */
565
566 if(user_in_group(user, *list +1))
567 return True;
568 }
569
570 } else if (**list == '&') {
571
572 if(*(*list +1) == '+') {
573 /*
574 * Search netgroup list followed by UNIX list.
575 */
576 if(user_in_netgroup(user, *list +2))
577 return True;
578 if(user_in_group(user, *list +2))
579 return True;
580 } else {
581 /*
582 * Just search netgroup list.
583 */
584 if(user_in_netgroup(user, *list +1))
585 return True;
586 }
587 }
588
589 list++;
590 }
591 return(False);
592}
593
594/****************************************************************************
595 Check if a username is valid.
596****************************************************************************/
597
598static BOOL user_ok(const char *user, int snum)
599{
600 char **valid, **invalid;
601 BOOL ret;
602
603 valid = invalid = NULL;
604 ret = True;
605
606 if (lp_invalid_users(snum)) {
607 str_list_copy(&invalid, lp_invalid_users(snum));
608 if (invalid &&
609 str_list_substitute(invalid, "%S", lp_servicename(snum))) {
610
611 /* This is used in sec=share only, so no current user
612 * around to pass to str_list_sub_basic() */
613
614 if ( invalid && str_list_sub_basic(invalid, "", "") ) {
615 ret = !user_in_list(user,
616 (const char **)invalid);
617 }
618 }
619 }
620 if (invalid)
621 str_list_free (&invalid);
622
623 if (ret && lp_valid_users(snum)) {
624 str_list_copy(&valid, lp_valid_users(snum));
625 if ( valid &&
626 str_list_substitute(valid, "%S", lp_servicename(snum)) ) {
627
628 /* This is used in sec=share only, so no current user
629 * around to pass to str_list_sub_basic() */
630
631 if ( valid && str_list_sub_basic(valid, "", "") ) {
632 ret = user_in_list(user, (const char **)valid);
633 }
634 }
635 }
636 if (valid)
637 str_list_free (&valid);
638
639 if (ret && lp_onlyuser(snum)) {
640 char **user_list = str_list_make (lp_username(snum), NULL);
641 if (user_list &&
642 str_list_substitute(user_list, "%S",
643 lp_servicename(snum))) {
644 ret = user_in_list(user, (const char **)user_list);
645 }
646 if (user_list) str_list_free (&user_list);
647 }
648
649 return(ret);
650}
651
652/****************************************************************************
653 Validate a group username entry. Return the username or NULL.
654****************************************************************************/
655
656static char *validate_group(char *group, DATA_BLOB password,int snum)
657{
658#ifdef HAVE_NETGROUP
659 {
660 char *host, *user, *domain;
661 setnetgrent(group);
662 while (getnetgrent(&host, &user, &domain)) {
663 if (user) {
664 if (user_ok(user, snum) &&
665 password_ok(user,password)) {
666 endnetgrent();
667 return(user);
668 }
669 }
670 }
671 endnetgrent();
672 }
673#endif
674
675#ifdef HAVE_GETGRENT
676 {
677 struct group *gptr;
678 setgrent();
679 while ((gptr = (struct group *)getgrent())) {
680 if (strequal(gptr->gr_name,group))
681 break;
682 }
683
684 /*
685 * As user_ok can recurse doing a getgrent(), we must
686 * copy the member list into a pstring on the stack before
687 * use. Bug pointed out by [email protected].
688 */
689
690 if (gptr) {
691 pstring member_list;
692 char *member;
693 size_t copied_len = 0;
694 int i;
695
696 *member_list = '\0';
697 member = member_list;
698
699 for(i = 0; gptr->gr_mem && gptr->gr_mem[i]; i++) {
700 size_t member_len = strlen(gptr->gr_mem[i])+1;
701 if(copied_len+member_len < sizeof(pstring)) {
702
703 DEBUG(10,("validate_group: = gr_mem = "
704 "%s\n", gptr->gr_mem[i]));
705
706 safe_strcpy(member, gptr->gr_mem[i],
707 sizeof(pstring) -
708 copied_len - 1);
709 copied_len += member_len;
710 member += copied_len;
711 } else {
712 *member = '\0';
713 }
714 }
715
716 endgrent();
717
718 member = member_list;
719 while (*member) {
720 static fstring name;
721 fstrcpy(name,member);
722 if (user_ok(name,snum) &&
723 password_ok(name,password)) {
724 endgrent();
725 return(&name[0]);
726 }
727
728 DEBUG(10,("validate_group = member = %s\n",
729 member));
730
731 member += strlen(member) + 1;
732 }
733 } else {
734 endgrent();
735 return NULL;
736 }
737 }
738#endif
739 return(NULL);
740}
741
742/****************************************************************************
743 Check for authority to login to a service with a given username/password.
744 Note this is *NOT* used when logging on using sessionsetup_and_X.
745****************************************************************************/
746
747BOOL authorise_login(int snum, fstring user, DATA_BLOB password,
748 BOOL *guest)
749{
750 BOOL ok = False;
751
752#ifdef DEBUG_PASSWORD
753 DEBUG(100,("authorise_login: checking authorisation on "
754 "user=%s pass=%s\n", user,password.data));
755#endif
756
757 *guest = False;
758
759 /* there are several possibilities:
760 1) login as the given user with given password
761 2) login as a previously registered username with the given
762 password
763 3) login as a session list username with the given password
764 4) login as a previously validated user/password pair
765 5) login as the "user =" user with given password
766 6) login as the "user =" user with no password
767 (guest connection)
768 7) login as guest user with no password
769
770 if the service is guest_only then steps 1 to 5 are skipped
771 */
772
773 /* now check the list of session users */
774 if (!ok) {
775 char *auser;
776 char *user_list = NULL;
777
778 if ( session_userlist )
779 user_list = SMB_STRDUP(session_userlist);
780 else
781 user_list = SMB_STRDUP("");
782
783 if (!user_list)
784 return(False);
785
786 for (auser=strtok(user_list,LIST_SEP); !ok && auser;
787 auser = strtok(NULL,LIST_SEP)) {
788 fstring user2;
789 fstrcpy(user2,auser);
790 if (!user_ok(user2,snum))
791 continue;
792
793 if (password_ok(user2,password)) {
794 ok = True;
795 fstrcpy(user,user2);
796 DEBUG(3,("authorise_login: ACCEPTED: session "
797 "list username (%s) and given "
798 "password ok\n", user));
799 }
800 }
801
802 SAFE_FREE(user_list);
803 }
804
805 /* check the user= fields and the given password */
806 if (!ok && lp_username(snum)) {
807 char *auser;
808 pstring user_list;
809 pstrcpy(user_list,lp_username(snum));
810
811 pstring_sub(user_list,"%S",lp_servicename(snum));
812
813 for (auser=strtok(user_list,LIST_SEP); auser && !ok;
814 auser = strtok(NULL,LIST_SEP)) {
815 if (*auser == '@') {
816 auser = validate_group(auser+1,password,snum);
817 if (auser) {
818 ok = True;
819 fstrcpy(user,auser);
820 DEBUG(3,("authorise_login: ACCEPTED: "
821 "group username and given "
822 "password ok (%s)\n", user));
823 }
824 } else {
825 fstring user2;
826 fstrcpy(user2,auser);
827 if (user_ok(user2,snum) &&
828 password_ok(user2,password)) {
829 ok = True;
830 fstrcpy(user,user2);
831 DEBUG(3,("authorise_login: ACCEPTED: "
832 "user list username and "
833 "given password ok (%s)\n",
834 user));
835 }
836 }
837 }
838 }
839
840 /* check for a normal guest connection */
841 if (!ok && GUEST_OK(snum)) {
842 fstring guestname;
843 fstrcpy(guestname,lp_guestaccount());
844 if (Get_Pwnam(guestname)) {
845 fstrcpy(user,guestname);
846 ok = True;
847 DEBUG(3,("authorise_login: ACCEPTED: guest account "
848 "and guest ok (%s)\n", user));
849 } else {
850 DEBUG(0,("authorise_login: Invalid guest account "
851 "%s??\n",guestname));
852 }
853 *guest = True;
854 }
855
856 if (ok && !user_ok(user, snum)) {
857 DEBUG(0,("authorise_login: rejected invalid user %s\n",user));
858 ok = False;
859 }
860
861 return(ok);
862}
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