2
Unix SMB/CIFS implementation.
3
Authentication utility functions
4
Copyright (C) Andrew Tridgell 1992-1998
5
Copyright (C) Andrew Bartlett 2001
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Copyright (C) Jeremy Allison 2000-2001
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Copyright (C) Rafal Szczesniak 2002
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Copyright (C) Volker Lendecke 2006
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
21
along with this program. If not, see <http://www.gnu.org/licenses/>.
27
#define DBGC_CLASS DBGC_AUTH
29
/****************************************************************************
30
Ensure primary group SID is always at position 0 in a
31
auth_serversupplied_info struct.
32
****************************************************************************/
34
static void sort_sid_array_for_smbd(auth_serversupplied_info *result,
35
const DOM_SID *pgroup_sid)
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if (sid_compare(&result->sids[0], pgroup_sid)==0) {
47
for (i = 1; i < result->num_sids; i++) {
48
if (sid_compare(pgroup_sid,
49
&result->sids[i]) == 0) {
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sid_copy(&result->sids[i], &result->sids[0]);
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sid_copy(&result->sids[0], pgroup_sid);
57
/****************************************************************************
58
Create a UNIX user on demand.
59
****************************************************************************/
61
static int _smb_create_user(const char *domain, const char *unix_username, const char *homedir)
63
TALLOC_CTX *ctx = talloc_tos();
67
add_script = talloc_strdup(ctx, lp_adduser_script());
68
if (!add_script || !*add_script) {
71
add_script = talloc_all_string_sub(ctx,
79
add_script = talloc_all_string_sub(ctx,
88
add_script = talloc_all_string_sub(ctx,
96
ret = smbrun(add_script,NULL);
99
("smb_create_user: Running the command `%s' gave %d\n",
104
/****************************************************************************
105
Create an auth_usersupplied_data structure
106
****************************************************************************/
108
static NTSTATUS make_user_info(auth_usersupplied_info **user_info,
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const char *smb_name,
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const char *internal_username,
111
const char *client_domain,
113
const char *wksta_name,
114
DATA_BLOB *lm_pwd, DATA_BLOB *nt_pwd,
115
DATA_BLOB *lm_interactive_pwd, DATA_BLOB *nt_interactive_pwd,
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DATA_BLOB *plaintext,
120
DEBUG(5,("attempting to make a user_info for %s (%s)\n", internal_username, smb_name));
122
*user_info = SMB_MALLOC_P(auth_usersupplied_info);
123
if (*user_info == NULL) {
124
DEBUG(0,("malloc failed for user_info (size %lu)\n", (unsigned long)sizeof(*user_info)));
125
return NT_STATUS_NO_MEMORY;
128
ZERO_STRUCTP(*user_info);
130
DEBUG(5,("making strings for %s's user_info struct\n", internal_username));
132
(*user_info)->smb_name = SMB_STRDUP(smb_name);
133
if ((*user_info)->smb_name == NULL) {
134
free_user_info(user_info);
135
return NT_STATUS_NO_MEMORY;
138
(*user_info)->internal_username = SMB_STRDUP(internal_username);
139
if ((*user_info)->internal_username == NULL) {
140
free_user_info(user_info);
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return NT_STATUS_NO_MEMORY;
144
(*user_info)->domain = SMB_STRDUP(domain);
145
if ((*user_info)->domain == NULL) {
146
free_user_info(user_info);
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return NT_STATUS_NO_MEMORY;
150
(*user_info)->client_domain = SMB_STRDUP(client_domain);
151
if ((*user_info)->client_domain == NULL) {
152
free_user_info(user_info);
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return NT_STATUS_NO_MEMORY;
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(*user_info)->wksta_name = SMB_STRDUP(wksta_name);
157
if ((*user_info)->wksta_name == NULL) {
158
free_user_info(user_info);
159
return NT_STATUS_NO_MEMORY;
162
DEBUG(5,("making blobs for %s's user_info struct\n", internal_username));
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(*user_info)->lm_resp = data_blob(lm_pwd->data, lm_pwd->length);
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(*user_info)->nt_resp = data_blob(nt_pwd->data, nt_pwd->length);
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if (lm_interactive_pwd)
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(*user_info)->lm_interactive_pwd = data_blob(lm_interactive_pwd->data, lm_interactive_pwd->length);
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if (nt_interactive_pwd)
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(*user_info)->nt_interactive_pwd = data_blob(nt_interactive_pwd->data, nt_interactive_pwd->length);
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(*user_info)->plaintext_password = data_blob(plaintext->data, plaintext->length);
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(*user_info)->encrypted = encrypted;
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(*user_info)->logon_parameters = 0;
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DEBUG(10,("made an %sencrypted user_info for %s (%s)\n", encrypted ? "":"un" , internal_username, smb_name));
185
/****************************************************************************
186
Create an auth_usersupplied_data structure after appropriate mapping.
187
****************************************************************************/
189
NTSTATUS make_user_info_map(auth_usersupplied_info **user_info,
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const char *smb_name,
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const char *client_domain,
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const char *wksta_name,
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DATA_BLOB *lm_interactive_pwd,
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DATA_BLOB *nt_interactive_pwd,
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DATA_BLOB *plaintext,
203
fstring internal_username;
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fstrcpy(internal_username, smb_name);
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was_mapped = map_username(internal_username);
207
DEBUG(5, ("Mapping user [%s]\\[%s] from workstation [%s]\n",
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client_domain, smb_name, wksta_name));
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domain = client_domain;
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/* If you connect to a Windows domain member using a bogus domain name,
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* the Windows box will map the BOGUS\user to SAMNAME\user. Thus, if
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* the Windows box is a DC the name will become DOMAIN\user and be
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* authenticated against AD, if the Windows box is a member server but
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* not a DC the name will become WORKSTATION\user. A standalone
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* non-domain member box will also map to WORKSTATION\user.
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* This also deals with the client passing in a "" domain */
220
if (!is_trusted_domain(domain) &&
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!strequal(domain, my_sam_name()))
223
if (lp_map_untrusted_to_domain())
224
domain = my_sam_name();
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domain = get_global_sam_name();
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DEBUG(5, ("Mapped domain from [%s] to [%s] for user [%s] from "
228
"workstation [%s]\n",
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client_domain, domain, smb_name, wksta_name));
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/* We know that the given domain is trusted (and we are allowing them),
233
* it is our global SAM name, or for legacy behavior it is our
234
* primary domain name */
236
result = make_user_info(user_info, smb_name, internal_username,
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client_domain, domain, wksta_name,
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lm_interactive_pwd, nt_interactive_pwd,
240
plaintext, encrypted);
241
if (NT_STATUS_IS_OK(result)) {
242
(*user_info)->was_mapped = was_mapped;
247
/****************************************************************************
248
Create an auth_usersupplied_data, making the DATA_BLOBs here.
249
Decrypt and encrypt the passwords.
250
****************************************************************************/
252
bool make_user_info_netlogon_network(auth_usersupplied_info **user_info,
253
const char *smb_name,
254
const char *client_domain,
255
const char *wksta_name,
256
uint32 logon_parameters,
257
const uchar *lm_network_pwd,
259
const uchar *nt_network_pwd,
264
DATA_BLOB lm_blob = data_blob(lm_network_pwd, lm_pwd_len);
265
DATA_BLOB nt_blob = data_blob(nt_network_pwd, nt_pwd_len);
267
status = make_user_info_map(user_info,
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smb_name, client_domain,
270
lm_pwd_len ? &lm_blob : NULL,
271
nt_pwd_len ? &nt_blob : NULL,
275
if (NT_STATUS_IS_OK(status)) {
276
(*user_info)->logon_parameters = logon_parameters;
278
ret = NT_STATUS_IS_OK(status) ? True : False;
280
data_blob_free(&lm_blob);
281
data_blob_free(&nt_blob);
285
/****************************************************************************
286
Create an auth_usersupplied_data, making the DATA_BLOBs here.
287
Decrypt and encrypt the passwords.
288
****************************************************************************/
290
bool make_user_info_netlogon_interactive(auth_usersupplied_info **user_info,
291
const char *smb_name,
292
const char *client_domain,
293
const char *wksta_name,
294
uint32 logon_parameters,
296
const uchar lm_interactive_pwd[16],
297
const uchar nt_interactive_pwd[16],
298
const uchar *dc_sess_key)
300
unsigned char lm_pwd[16];
301
unsigned char nt_pwd[16];
302
unsigned char local_lm_response[24];
303
unsigned char local_nt_response[24];
304
unsigned char key[16];
306
memcpy(key, dc_sess_key, 16);
308
if (lm_interactive_pwd)
309
memcpy(lm_pwd, lm_interactive_pwd, sizeof(lm_pwd));
311
if (nt_interactive_pwd)
312
memcpy(nt_pwd, nt_interactive_pwd, sizeof(nt_pwd));
314
#ifdef DEBUG_PASSWORD
316
dump_data(100, key, sizeof(key));
318
DEBUG(100,("lm owf password:"));
319
dump_data(100, lm_pwd, sizeof(lm_pwd));
321
DEBUG(100,("nt owf password:"));
322
dump_data(100, nt_pwd, sizeof(nt_pwd));
325
if (lm_interactive_pwd)
326
SamOEMhash(lm_pwd, key, sizeof(lm_pwd));
328
if (nt_interactive_pwd)
329
SamOEMhash(nt_pwd, key, sizeof(nt_pwd));
331
#ifdef DEBUG_PASSWORD
332
DEBUG(100,("decrypt of lm owf password:"));
333
dump_data(100, lm_pwd, sizeof(lm_pwd));
335
DEBUG(100,("decrypt of nt owf password:"));
336
dump_data(100, nt_pwd, sizeof(nt_pwd));
339
if (lm_interactive_pwd)
340
SMBOWFencrypt(lm_pwd, chal,
343
if (nt_interactive_pwd)
344
SMBOWFencrypt(nt_pwd, chal,
347
/* Password info paranoia */
353
DATA_BLOB local_lm_blob;
354
DATA_BLOB local_nt_blob;
356
DATA_BLOB lm_interactive_blob;
357
DATA_BLOB nt_interactive_blob;
359
if (lm_interactive_pwd) {
360
local_lm_blob = data_blob(local_lm_response,
361
sizeof(local_lm_response));
362
lm_interactive_blob = data_blob(lm_pwd,
367
if (nt_interactive_pwd) {
368
local_nt_blob = data_blob(local_nt_response,
369
sizeof(local_nt_response));
370
nt_interactive_blob = data_blob(nt_pwd,
375
nt_status = make_user_info_map(
377
smb_name, client_domain, wksta_name,
378
lm_interactive_pwd ? &local_lm_blob : NULL,
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nt_interactive_pwd ? &local_nt_blob : NULL,
380
lm_interactive_pwd ? &lm_interactive_blob : NULL,
381
nt_interactive_pwd ? &nt_interactive_blob : NULL,
384
if (NT_STATUS_IS_OK(nt_status)) {
385
(*user_info)->logon_parameters = logon_parameters;
388
ret = NT_STATUS_IS_OK(nt_status) ? True : False;
389
data_blob_free(&local_lm_blob);
390
data_blob_free(&local_nt_blob);
391
data_blob_free(&lm_interactive_blob);
392
data_blob_free(&nt_interactive_blob);
398
/****************************************************************************
399
Create an auth_usersupplied_data structure
400
****************************************************************************/
402
bool make_user_info_for_reply(auth_usersupplied_info **user_info,
403
const char *smb_name,
404
const char *client_domain,
406
DATA_BLOB plaintext_password)
409
DATA_BLOB local_lm_blob;
410
DATA_BLOB local_nt_blob;
411
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
414
* Not encrypted - do so.
417
DEBUG(5,("make_user_info_for_reply: User passwords not in encrypted "
420
if (plaintext_password.data) {
421
unsigned char local_lm_response[24];
423
#ifdef DEBUG_PASSWORD
424
DEBUG(10,("Unencrypted password (len %d):\n",
425
(int)plaintext_password.length));
426
dump_data(100, plaintext_password.data,
427
plaintext_password.length);
430
SMBencrypt( (const char *)plaintext_password.data,
431
(const uchar*)chal, local_lm_response);
432
local_lm_blob = data_blob(local_lm_response, 24);
434
/* We can't do an NT hash here, as the password needs to be
436
local_nt_blob = data_blob_null;
439
local_lm_blob = data_blob_null;
440
local_nt_blob = data_blob_null;
443
ret = make_user_info_map(
444
user_info, smb_name, client_domain,
445
get_remote_machine_name(),
446
local_lm_blob.data ? &local_lm_blob : NULL,
447
local_nt_blob.data ? &local_nt_blob : NULL,
449
plaintext_password.data ? &plaintext_password : NULL,
452
data_blob_free(&local_lm_blob);
453
return NT_STATUS_IS_OK(ret) ? True : False;
456
/****************************************************************************
457
Create an auth_usersupplied_data structure
458
****************************************************************************/
460
NTSTATUS make_user_info_for_reply_enc(auth_usersupplied_info **user_info,
461
const char *smb_name,
462
const char *client_domain,
463
DATA_BLOB lm_resp, DATA_BLOB nt_resp)
465
return make_user_info_map(user_info, smb_name,
467
get_remote_machine_name(),
468
lm_resp.data ? &lm_resp : NULL,
469
nt_resp.data ? &nt_resp : NULL,
474
/****************************************************************************
475
Create a guest user_info blob, for anonymous authenticaion.
476
****************************************************************************/
478
bool make_user_info_guest(auth_usersupplied_info **user_info)
482
nt_status = make_user_info(user_info,
491
return NT_STATUS_IS_OK(nt_status) ? True : False;
494
static int server_info_dtor(auth_serversupplied_info *server_info)
496
TALLOC_FREE(server_info->sam_account);
497
ZERO_STRUCTP(server_info);
501
/***************************************************************************
502
Make a server_info struct. Free with TALLOC_FREE().
503
***************************************************************************/
505
static auth_serversupplied_info *make_server_info(TALLOC_CTX *mem_ctx)
507
struct auth_serversupplied_info *result;
509
result = TALLOC_ZERO_P(mem_ctx, auth_serversupplied_info);
510
if (result == NULL) {
511
DEBUG(0, ("talloc failed\n"));
515
talloc_set_destructor(result, server_info_dtor);
517
/* Initialise the uid and gid values to something non-zero
518
which may save us from giving away root access if there
519
is a bug in allocating these fields. */
521
result->utok.uid = -1;
522
result->utok.gid = -1;
526
static char *sanitize_username(TALLOC_CTX *mem_ctx, const char *username)
530
alpha_strcpy(tmp, username, ". _-$", sizeof(tmp));
531
return talloc_strdup(mem_ctx, tmp);
534
/***************************************************************************
535
Is the incoming username our own machine account ?
536
If so, the connection is almost certainly from winbindd.
537
***************************************************************************/
539
static bool is_our_machine_account(const char *username)
542
char *truncname = NULL;
543
size_t ulen = strlen(username);
545
if (ulen == 0 || username[ulen-1] != '$') {
548
truncname = SMB_STRDUP(username);
552
truncname[ulen-1] = '\0';
553
ret = strequal(truncname, global_myname());
554
SAFE_FREE(truncname);
558
/***************************************************************************
559
Make (and fill) a user_info struct from a struct samu
560
***************************************************************************/
562
NTSTATUS make_server_info_sam(auth_serversupplied_info **server_info,
563
struct samu *sampass)
567
auth_serversupplied_info *result;
568
const char *username = pdb_get_username(sampass);
571
if ( !(result = make_server_info(NULL)) ) {
572
return NT_STATUS_NO_MEMORY;
575
if ( !(pwd = getpwnam_alloc(result, username)) ) {
576
DEBUG(1, ("User %s in passdb, but getpwnam() fails!\n",
577
pdb_get_username(sampass)));
579
return NT_STATUS_NO_SUCH_USER;
582
result->sam_account = sampass;
583
result->unix_name = pwd->pw_name;
584
/* Ensure that we keep pwd->pw_name, because we will free pwd below */
585
talloc_steal(result, pwd->pw_name);
586
result->utok.gid = pwd->pw_gid;
587
result->utok.uid = pwd->pw_uid;
591
result->sanitized_username = sanitize_username(result,
593
if (result->sanitized_username == NULL) {
595
return NT_STATUS_NO_MEMORY;
598
if (IS_DC && is_our_machine_account(username)) {
600
* Ensure for a connection from our own
601
* machine account (from winbindd on a DC)
602
* there are no supplementary groups.
603
* Prevents loops in calling gid_to_sid().
607
result->num_sids = 0;
610
* This is a hack of monstrous proportions.
611
* If we know it's winbindd talking to us,
612
* we know we must never recurse into it,
613
* so turn off contacting winbindd for this
614
* entire process. This will get fixed when
615
* winbindd doesn't need to talk to smbd on
621
DEBUG(10, ("make_server_info_sam: our machine account %s "
622
"setting supplementary group list empty and "
623
"turning off winbindd requests.\n",
626
status = pdb_enum_group_memberships(result, sampass,
627
&result->sids, &gids,
630
if (!NT_STATUS_IS_OK(status)) {
631
DEBUG(10, ("pdb_enum_group_memberships failed: %s\n",
633
result->sam_account = NULL; /* Don't free on error exit. */
639
/* For now we throw away the gids and convert via sid_to_gid
640
* later. This needs fixing, but I'd like to get the code straight and
645
DEBUG(5,("make_server_info_sam: made server info for user %s -> %s\n",
646
pdb_get_username(sampass), result->unix_name));
648
*server_info = result;
649
/* Ensure that the sampass will be freed with the result */
650
talloc_steal(result, sampass);
655
static NTSTATUS log_nt_token(NT_USER_TOKEN *token)
657
TALLOC_CTX *frame = talloc_stackframe();
662
if ((lp_log_nt_token_command() == NULL) ||
663
(strlen(lp_log_nt_token_command()) == 0)) {
668
group_sidstr = talloc_strdup(frame, "");
669
for (i=1; i<token->num_sids; i++) {
670
group_sidstr = talloc_asprintf(
671
frame, "%s %s", group_sidstr,
672
sid_string_talloc(frame, &token->user_sids[i]));
675
command = talloc_string_sub(
676
frame, lp_log_nt_token_command(),
677
"%s", sid_string_talloc(frame, &token->user_sids[0]));
678
command = talloc_string_sub(frame, command, "%t", group_sidstr);
680
if (command == NULL) {
682
return NT_STATUS_NO_MEMORY;
685
DEBUG(8, ("running command: [%s]\n", command));
686
if (smbrun(command, NULL) != 0) {
687
DEBUG(0, ("Could not log NT token\n"));
689
return NT_STATUS_ACCESS_DENIED;
697
* Create the token to use from server_info->sam_account and
698
* server_info->sids (the info3/sam groups). Find the unix gids.
701
NTSTATUS create_local_token(auth_serversupplied_info *server_info)
705
struct dom_sid tmp_sid;
708
* If winbind is not around, we can not make much use of the SIDs the
709
* domain controller provided us with. Likewise if the user name was
710
* mapped to some local unix user.
713
if (((lp_server_role() == ROLE_DOMAIN_MEMBER) && !winbind_ping()) ||
714
(server_info->nss_token)) {
715
status = create_token_from_username(server_info,
716
server_info->unix_name,
718
&server_info->utok.uid,
719
&server_info->utok.gid,
720
&server_info->unix_name,
724
server_info->ptok = create_local_nt_token(
726
pdb_get_user_sid(server_info->sam_account),
728
server_info->num_sids, server_info->sids);
729
status = server_info->ptok ?
730
NT_STATUS_OK : NT_STATUS_NO_SUCH_USER;
733
if (!NT_STATUS_IS_OK(status)) {
737
/* Convert the SIDs to gids. */
739
server_info->utok.ngroups = 0;
740
server_info->utok.groups = NULL;
742
/* Start at index 1, where the groups start. */
744
for (i=1; i<server_info->ptok->num_sids; i++) {
746
DOM_SID *sid = &server_info->ptok->user_sids[i];
748
if (!sid_to_gid(sid, &gid)) {
749
DEBUG(10, ("Could not convert SID %s to gid, "
750
"ignoring it\n", sid_string_dbg(sid)));
753
add_gid_to_array_unique(server_info, gid,
754
&server_info->utok.groups,
755
&server_info->utok.ngroups);
759
* Add the "Unix Group" SID for each gid to catch mapped groups
760
* and their Unix equivalent. This is to solve the backwards
761
* compatibility problem of 'valid users = +ntadmin' where
762
* ntadmin has been paired with "Domain Admins" in the group
763
* mapping table. Otherwise smb.conf would need to be changed
764
* to 'valid user = "Domain Admins"'. --jerry
766
* For consistency we also add the "Unix User" SID,
767
* so that the complete unix token is represented within
771
if (!uid_to_unix_users_sid(server_info->utok.uid, &tmp_sid)) {
772
DEBUG(1,("create_local_token: Failed to create SID "
773
"for uid %u!\n", (unsigned int)server_info->utok.uid));
775
add_sid_to_array_unique(server_info->ptok, &tmp_sid,
776
&server_info->ptok->user_sids,
777
&server_info->ptok->num_sids);
779
for ( i=0; i<server_info->utok.ngroups; i++ ) {
780
if (!gid_to_unix_groups_sid( server_info->utok.groups[i], &tmp_sid ) ) {
781
DEBUG(1,("create_local_token: Failed to create SID "
782
"for gid %u!\n", (unsigned int)server_info->utok.groups[i]));
785
add_sid_to_array_unique(server_info->ptok, &tmp_sid,
786
&server_info->ptok->user_sids,
787
&server_info->ptok->num_sids);
790
debug_nt_user_token(DBGC_AUTH, 10, server_info->ptok);
791
debug_unix_user_token(DBGC_AUTH, 10,
792
server_info->utok.uid,
793
server_info->utok.gid,
794
server_info->utok.ngroups,
795
server_info->utok.groups);
797
status = log_nt_token(server_info->ptok);
802
* Create an artificial NT token given just a username. (Initially intended
805
* We go through lookup_name() to avoid problems we had with 'winbind use
810
* unmapped unix users: Go directly to nss to find the user's group.
812
* A passdb user: The list of groups is provided by pdb_enum_group_memberships.
814
* If the user is provided by winbind, the primary gid is set to "domain
815
* users" of the user's domain. For an explanation why this is necessary, see
816
* the thread starting at
817
* http://lists.samba.org/archive/samba-technical/2006-January/044803.html.
820
NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
822
uid_t *uid, gid_t *gid,
823
char **found_username,
824
struct nt_user_token **token)
826
NTSTATUS result = NT_STATUS_NO_SUCH_USER;
829
enum lsa_SidType type;
832
DOM_SID unix_group_sid;
833
size_t num_group_sids;
837
tmp_ctx = talloc_new(NULL);
838
if (tmp_ctx == NULL) {
839
DEBUG(0, ("talloc_new failed\n"));
840
return NT_STATUS_NO_MEMORY;
843
if (!lookup_name_smbconf(tmp_ctx, username, LOOKUP_NAME_ALL,
844
NULL, NULL, &user_sid, &type)) {
845
DEBUG(1, ("lookup_name_smbconf for %s failed\n", username));
849
if (type != SID_NAME_USER) {
850
DEBUG(1, ("%s is a %s, not a user\n", username,
851
sid_type_lookup(type)));
855
if (sid_check_is_in_our_domain(&user_sid)) {
858
/* This is a passdb user, so ask passdb */
860
struct samu *sam_acct = NULL;
862
if ( !(sam_acct = samu_new( tmp_ctx )) ) {
863
result = NT_STATUS_NO_MEMORY;
868
ret = pdb_getsampwsid(sam_acct, &user_sid);
872
DEBUG(1, ("pdb_getsampwsid(%s) for user %s failed\n",
873
sid_string_dbg(&user_sid), username));
874
DEBUGADD(1, ("Fall back to unix user %s\n", username));
878
result = pdb_enum_group_memberships(tmp_ctx, sam_acct,
881
if (!NT_STATUS_IS_OK(result)) {
882
DEBUG(10, ("enum_group_memberships failed for %s\n",
884
DEBUGADD(1, ("Fall back to unix user %s\n", username));
888
/* see the smb_panic() in pdb_default_enum_group_memberships */
889
SMB_ASSERT(num_group_sids > 0);
893
/* Ensure we're returning the found_username on the right context. */
894
*found_username = talloc_strdup(mem_ctx,
895
pdb_get_username(sam_acct));
898
* If the SID from lookup_name() was the guest sid, passdb knows
899
* about the mapping of guest sid to lp_guestaccount()
900
* username and will return the unix_pw info for a guest
901
* user. Use it if it's there, else lookup the *uid details
902
* using getpwnam_alloc(). See bug #6291 for details. JRA.
905
/* We must always assign the *uid. */
906
if (sam_acct->unix_pw == NULL) {
907
struct passwd *pwd = getpwnam_alloc(sam_acct, *found_username );
909
DEBUG(10, ("getpwnam_alloc failed for %s\n",
911
result = NT_STATUS_NO_SUCH_USER;
914
result = samu_set_unix(sam_acct, pwd );
915
if (!NT_STATUS_IS_OK(result)) {
916
DEBUG(10, ("samu_set_unix failed for %s\n",
918
result = NT_STATUS_NO_SUCH_USER;
922
*uid = sam_acct->unix_pw->pw_uid;
924
} else if (sid_check_is_in_unix_users(&user_sid)) {
926
/* This is a unix user not in passdb. We need to ask nss
927
* directly, without consulting passdb */
932
* This goto target is used as a fallback for the passdb
933
* case. The concrete bug report is when passdb gave us an
939
if (!sid_to_uid(&user_sid, uid)) {
940
DEBUG(1, ("unix_user case, sid_to_uid for %s (%s) failed\n",
941
username, sid_string_dbg(&user_sid)));
942
result = NT_STATUS_NO_SUCH_USER;
946
uid_to_unix_users_sid(*uid, &user_sid);
948
pass = getpwuid_alloc(tmp_ctx, *uid);
950
DEBUG(1, ("getpwuid(%u) for user %s failed\n",
951
(unsigned int)*uid, username));
955
if (!getgroups_unix_user(tmp_ctx, username, pass->pw_gid,
956
&gids, &num_group_sids)) {
957
DEBUG(1, ("getgroups_unix_user for user %s failed\n",
962
if (num_group_sids) {
963
group_sids = TALLOC_ARRAY(tmp_ctx, DOM_SID, num_group_sids);
964
if (group_sids == NULL) {
965
DEBUG(1, ("TALLOC_ARRAY failed\n"));
966
result = NT_STATUS_NO_MEMORY;
973
for (i=0; i<num_group_sids; i++) {
974
gid_to_sid(&group_sids[i], gids[i]);
977
/* In getgroups_unix_user we always set the primary gid */
978
SMB_ASSERT(num_group_sids > 0);
982
/* Ensure we're returning the found_username on the right context. */
983
*found_username = talloc_strdup(mem_ctx, pass->pw_name);
986
/* This user is from winbind, force the primary gid to the
987
* user's "domain users" group. Under certain circumstances
988
* (user comes from NT4), this might be a loss of
989
* information. But we can not rely on winbind getting the
990
* correct info. AD might prohibit winbind looking up that
995
/* We must always assign the *uid. */
996
if (!sid_to_uid(&user_sid, uid)) {
997
DEBUG(1, ("winbindd case, sid_to_uid for %s (%s) failed\n",
998
username, sid_string_dbg(&user_sid)));
999
result = NT_STATUS_NO_SUCH_USER;
1004
group_sids = TALLOC_ARRAY(tmp_ctx, DOM_SID, num_group_sids);
1005
if (group_sids == NULL) {
1006
DEBUG(1, ("TALLOC_ARRAY failed\n"));
1007
result = NT_STATUS_NO_MEMORY;
1011
sid_copy(&group_sids[0], &user_sid);
1012
sid_split_rid(&group_sids[0], &dummy);
1013
sid_append_rid(&group_sids[0], DOMAIN_GROUP_RID_USERS);
1015
if (!sid_to_gid(&group_sids[0], gid)) {
1016
DEBUG(1, ("sid_to_gid(%s) failed\n",
1017
sid_string_dbg(&group_sids[0])));
1023
/* Ensure we're returning the found_username on the right context. */
1024
*found_username = talloc_strdup(mem_ctx, username);
1027
/* Add the "Unix Group" SID for each gid to catch mapped groups
1028
and their Unix equivalent. This is to solve the backwards
1029
compatibility problem of 'valid users = +ntadmin' where
1030
ntadmin has been paired with "Domain Admins" in the group
1031
mapping table. Otherwise smb.conf would need to be changed
1032
to 'valid user = "Domain Admins"'. --jerry */
1034
num_gids = num_group_sids;
1035
for ( i=0; i<num_gids; i++ ) {
1038
/* don't pickup anything managed by Winbind */
1040
if ( lp_idmap_gid(&low, &high) && (gids[i] >= low) && (gids[i] <= high) )
1043
if ( !gid_to_unix_groups_sid( gids[i], &unix_group_sid ) ) {
1044
DEBUG(1,("create_token_from_username: Failed to create SID "
1045
"for gid %u!\n", (unsigned int)gids[i]));
1048
result = add_sid_to_array_unique(tmp_ctx, &unix_group_sid,
1049
&group_sids, &num_group_sids);
1050
if (!NT_STATUS_IS_OK(result)) {
1055
/* Ensure we're creating the nt_token on the right context. */
1056
*token = create_local_nt_token(mem_ctx, &user_sid,
1057
is_guest, num_group_sids, group_sids);
1059
if ((*token == NULL) || (*found_username == NULL)) {
1060
result = NT_STATUS_NO_MEMORY;
1064
result = NT_STATUS_OK;
1066
TALLOC_FREE(tmp_ctx);
1070
/***************************************************************************
1071
Build upon create_token_from_username:
1073
Expensive helper function to figure out whether a user given its name is
1074
member of a particular group.
1075
***************************************************************************/
1077
bool user_in_group_sid(const char *username, const DOM_SID *group_sid)
1082
char *found_username;
1083
struct nt_user_token *token;
1086
TALLOC_CTX *mem_ctx;
1088
mem_ctx = talloc_new(NULL);
1089
if (mem_ctx == NULL) {
1090
DEBUG(0, ("talloc_new failed\n"));
1094
status = create_token_from_username(mem_ctx, username, False,
1095
&uid, &gid, &found_username,
1098
if (!NT_STATUS_IS_OK(status)) {
1099
DEBUG(10, ("could not create token for %s\n", username));
1103
result = nt_token_check_sid(group_sid, token);
1105
TALLOC_FREE(mem_ctx);
1110
bool user_in_group(const char *username, const char *groupname)
1112
TALLOC_CTX *mem_ctx;
1116
mem_ctx = talloc_new(NULL);
1117
if (mem_ctx == NULL) {
1118
DEBUG(0, ("talloc_new failed\n"));
1122
ret = lookup_name(mem_ctx, groupname, LOOKUP_NAME_ALL,
1123
NULL, NULL, &group_sid, NULL);
1124
TALLOC_FREE(mem_ctx);
1127
DEBUG(10, ("lookup_name for (%s) failed.\n", groupname));
1131
return user_in_group_sid(username, &group_sid);
1134
/***************************************************************************
1135
Make (and fill) a server_info struct from a 'struct passwd' by conversion
1137
***************************************************************************/
1139
NTSTATUS make_server_info_pw(auth_serversupplied_info **server_info,
1140
char *unix_username,
1144
struct samu *sampass = NULL;
1146
char *qualified_name = NULL;
1147
TALLOC_CTX *mem_ctx = NULL;
1149
enum lsa_SidType type;
1150
auth_serversupplied_info *result;
1152
if ( !(sampass = samu_new( NULL )) ) {
1153
return NT_STATUS_NO_MEMORY;
1156
status = samu_set_unix( sampass, pwd );
1157
if (!NT_STATUS_IS_OK(status)) {
1161
result = make_server_info(NULL);
1162
if (result == NULL) {
1163
TALLOC_FREE(sampass);
1164
return NT_STATUS_NO_MEMORY;
1167
result->sam_account = sampass;
1169
result->unix_name = talloc_strdup(result, unix_username);
1170
result->sanitized_username = sanitize_username(result, unix_username);
1172
if ((result->unix_name == NULL)
1173
|| (result->sanitized_username == NULL)) {
1174
TALLOC_FREE(sampass);
1175
TALLOC_FREE(result);
1176
return NT_STATUS_NO_MEMORY;
1179
result->utok.uid = pwd->pw_uid;
1180
result->utok.gid = pwd->pw_gid;
1182
status = pdb_enum_group_memberships(result, sampass,
1183
&result->sids, &gids,
1186
if (!NT_STATUS_IS_OK(status)) {
1187
DEBUG(10, ("pdb_enum_group_memberships failed: %s\n",
1188
nt_errstr(status)));
1189
TALLOC_FREE(result);
1194
* The SID returned in server_info->sam_account is based
1195
* on our SAM sid even though for a pure UNIX account this should
1196
* not be the case as it doesn't really exist in the SAM db.
1197
* This causes lookups on "[in]valid users" to fail as they
1198
* will lookup this name as a "Unix User" SID to check against
1199
* the user token. Fix this by adding the "Unix User"\unix_username
1200
* SID to the sid array. The correct fix should probably be
1201
* changing the server_info->sam_account user SID to be a
1202
* S-1-22 Unix SID, but this might break old configs where
1203
* plaintext passwords were used with no SAM backend.
1206
mem_ctx = talloc_init("make_server_info_pw_tmp");
1208
TALLOC_FREE(result);
1209
return NT_STATUS_NO_MEMORY;
1212
qualified_name = talloc_asprintf(mem_ctx, "%s\\%s",
1213
unix_users_domain_name(),
1215
if (!qualified_name) {
1216
TALLOC_FREE(result);
1217
TALLOC_FREE(mem_ctx);
1218
return NT_STATUS_NO_MEMORY;
1221
if (!lookup_name(mem_ctx, qualified_name, LOOKUP_NAME_ALL,
1224
TALLOC_FREE(result);
1225
TALLOC_FREE(mem_ctx);
1226
return NT_STATUS_NO_SUCH_USER;
1229
TALLOC_FREE(mem_ctx);
1231
if (type != SID_NAME_USER) {
1232
TALLOC_FREE(result);
1233
return NT_STATUS_NO_SUCH_USER;
1236
status = add_sid_to_array_unique(result, &u_sid,
1239
if (!NT_STATUS_IS_OK(status)) {
1240
TALLOC_FREE(result);
1244
/* For now we throw away the gids and convert via sid_to_gid
1245
* later. This needs fixing, but I'd like to get the code straight and
1249
*server_info = result;
1251
return NT_STATUS_OK;
1254
/***************************************************************************
1255
Make (and fill) a user_info struct for a guest login.
1256
This *must* succeed for smbd to start. If there is no mapping entry for
1257
the guest gid, then create one.
1258
***************************************************************************/
1260
static NTSTATUS make_new_server_info_guest(auth_serversupplied_info **server_info)
1263
struct samu *sampass = NULL;
1269
if ( !(sampass = samu_new( NULL )) ) {
1270
return NT_STATUS_NO_MEMORY;
1273
sid_copy(&guest_sid, get_global_sam_sid());
1274
sid_append_rid(&guest_sid, DOMAIN_USER_RID_GUEST);
1277
ret = pdb_getsampwsid(sampass, &guest_sid);
1281
TALLOC_FREE(sampass);
1282
return NT_STATUS_NO_SUCH_USER;
1285
status = make_server_info_sam(server_info, sampass);
1286
if (!NT_STATUS_IS_OK(status)) {
1287
TALLOC_FREE(sampass);
1291
(*server_info)->guest = True;
1293
status = create_local_token(*server_info);
1294
if (!NT_STATUS_IS_OK(status)) {
1295
DEBUG(10, ("create_local_token failed: %s\n",
1296
nt_errstr(status)));
1300
/* annoying, but the Guest really does have a session key, and it is
1303
(*server_info)->user_session_key = data_blob(zeros, sizeof(zeros));
1304
(*server_info)->lm_session_key = data_blob(zeros, sizeof(zeros));
1306
alpha_strcpy(tmp, pdb_get_username(sampass), ". _-$", sizeof(tmp));
1307
(*server_info)->sanitized_username = talloc_strdup(*server_info, tmp);
1309
return NT_STATUS_OK;
1312
/****************************************************************************
1313
Fake a auth_serversupplied_info just from a username
1314
****************************************************************************/
1316
NTSTATUS make_serverinfo_from_username(TALLOC_CTX *mem_ctx,
1317
const char *username,
1319
struct auth_serversupplied_info **presult)
1321
struct auth_serversupplied_info *result;
1325
pwd = getpwnam_alloc(talloc_tos(), username);
1327
return NT_STATUS_NO_SUCH_USER;
1330
status = make_server_info_pw(&result, pwd->pw_name, pwd);
1334
if (!NT_STATUS_IS_OK(status)) {
1338
result->nss_token = true;
1339
result->guest = is_guest;
1341
status = create_local_token(result);
1343
if (!NT_STATUS_IS_OK(status)) {
1344
TALLOC_FREE(result);
1349
return NT_STATUS_OK;
1353
struct auth_serversupplied_info *copy_serverinfo(TALLOC_CTX *mem_ctx,
1354
const auth_serversupplied_info *src)
1356
auth_serversupplied_info *dst;
1358
dst = make_server_info(mem_ctx);
1363
dst->guest = src->guest;
1364
dst->utok.uid = src->utok.uid;
1365
dst->utok.gid = src->utok.gid;
1366
dst->utok.ngroups = src->utok.ngroups;
1367
if (src->utok.ngroups != 0) {
1368
dst->utok.groups = (gid_t *)TALLOC_MEMDUP(
1369
dst, src->utok.groups,
1370
sizeof(gid_t)*dst->utok.ngroups);
1372
dst->utok.groups = NULL;
1376
dst->ptok = dup_nt_token(dst, src->ptok);
1383
dst->user_session_key = data_blob_talloc( dst, src->user_session_key.data,
1384
src->user_session_key.length);
1386
dst->lm_session_key = data_blob_talloc(dst, src->lm_session_key.data,
1387
src->lm_session_key.length);
1389
dst->sam_account = samu_new(NULL);
1390
if (!dst->sam_account) {
1395
if (!pdb_copy_sam_account(dst->sam_account, src->sam_account)) {
1400
dst->pam_handle = NULL;
1401
dst->unix_name = talloc_strdup(dst, src->unix_name);
1402
if (!dst->unix_name) {
1407
dst->sanitized_username = talloc_strdup(dst, src->sanitized_username);
1408
if (!dst->sanitized_username) {
1417
* Set a new session key. Used in the rpc server where we have to override the
1418
* SMB level session key with SystemLibraryDTC
1421
bool server_info_set_session_key(struct auth_serversupplied_info *info,
1422
DATA_BLOB session_key)
1424
TALLOC_FREE(info->user_session_key.data);
1426
info->user_session_key = data_blob_talloc(
1427
info, session_key.data, session_key.length);
1429
return (info->user_session_key.data != NULL);
1432
static auth_serversupplied_info *guest_info = NULL;
1434
bool init_guest_info(void)
1436
if (guest_info != NULL)
1439
return NT_STATUS_IS_OK(make_new_server_info_guest(&guest_info));
1442
NTSTATUS make_server_info_guest(TALLOC_CTX *mem_ctx,
1443
auth_serversupplied_info **server_info)
1445
*server_info = copy_serverinfo(mem_ctx, guest_info);
1446
return (*server_info != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
1449
bool copy_current_user(struct current_user *dst, struct current_user *src)
1452
NT_USER_TOKEN *nt_token;
1454
groups = (gid_t *)memdup(src->ut.groups,
1455
sizeof(gid_t) * src->ut.ngroups);
1456
if ((src->ut.ngroups != 0) && (groups == NULL)) {
1460
nt_token = dup_nt_token(NULL, src->nt_user_token);
1461
if (nt_token == NULL) {
1466
dst->conn = src->conn;
1467
dst->vuid = src->vuid;
1468
dst->ut.uid = src->ut.uid;
1469
dst->ut.gid = src->ut.gid;
1470
dst->ut.ngroups = src->ut.ngroups;
1471
dst->ut.groups = groups;
1472
dst->nt_user_token = nt_token;
1476
/***************************************************************************
1477
Purely internal function for make_server_info_info3
1478
Fill the sam account from getpwnam
1479
***************************************************************************/
1480
static NTSTATUS fill_sam_account(TALLOC_CTX *mem_ctx,
1482
const char *username,
1483
char **found_username,
1484
uid_t *uid, gid_t *gid,
1485
struct samu *account,
1486
bool *username_was_mapped)
1489
fstring dom_user, lower_username;
1490
fstring real_username;
1491
struct passwd *passwd;
1493
fstrcpy( lower_username, username );
1494
strlower_m( lower_username );
1496
fstr_sprintf(dom_user, "%s%c%s", domain, *lp_winbind_separator(),
1499
/* Get the passwd struct. Try to create the account is necessary. */
1501
*username_was_mapped = map_username( dom_user );
1503
if ( !(passwd = smb_getpwnam( NULL, dom_user, real_username, True )) )
1504
return NT_STATUS_NO_SUCH_USER;
1506
*uid = passwd->pw_uid;
1507
*gid = passwd->pw_gid;
1509
/* This is pointless -- there is no suport for differing
1510
unix and windows names. Make sure to always store the
1511
one we actually looked up and succeeded. Have I mentioned
1512
why I hate the 'winbind use default domain' parameter?
1515
*found_username = talloc_strdup( mem_ctx, real_username );
1517
DEBUG(5,("fill_sam_account: located username was [%s]\n", *found_username));
1519
nt_status = samu_set_unix( account, passwd );
1521
TALLOC_FREE(passwd);
1526
/****************************************************************************
1527
Wrapper to allow the getpwnam() call to strip the domain name and
1528
try again in case a local UNIX user is already there. Also run through
1529
the username if we fallback to the username only.
1530
****************************************************************************/
1532
struct passwd *smb_getpwnam( TALLOC_CTX *mem_ctx, char *domuser,
1533
fstring save_username, bool create )
1535
struct passwd *pw = NULL;
1539
/* we only save a copy of the username it has been mangled
1540
by winbindd use default domain */
1542
save_username[0] = '\0';
1544
/* don't call map_username() here since it has to be done higher
1545
up the stack so we don't call it mutliple times */
1547
fstrcpy( username, domuser );
1549
p = strchr_m( username, *lp_winbind_separator() );
1551
/* code for a DOMAIN\user string */
1554
fstring strip_username;
1556
pw = Get_Pwnam_alloc( mem_ctx, domuser );
1558
/* make sure we get the case of the username correct */
1559
/* work around 'winbind use default domain = yes' */
1561
if ( !strchr_m( pw->pw_name, *lp_winbind_separator() ) ) {
1564
/* split the domain and username into 2 strings */
1568
fstr_sprintf(save_username, "%s%c%s", domain, *lp_winbind_separator(), pw->pw_name);
1571
fstrcpy( save_username, pw->pw_name );
1577
/* setup for lookup of just the username */
1578
/* remember that p and username are overlapping memory */
1581
fstrcpy( strip_username, p );
1582
fstrcpy( username, strip_username );
1585
/* just lookup a plain username */
1587
pw = Get_Pwnam_alloc(mem_ctx, username);
1589
/* Create local user if requested but only if winbindd
1590
is not running. We need to protect against cases
1591
where winbindd is failing and then prematurely
1592
creating users in /etc/passwd */
1594
if ( !pw && create && !winbind_ping() ) {
1595
/* Don't add a machine account. */
1596
if (username[strlen(username)-1] == '$')
1599
_smb_create_user(NULL, username, NULL);
1600
pw = Get_Pwnam_alloc(mem_ctx, username);
1603
/* one last check for a valid passwd struct */
1606
fstrcpy( save_username, pw->pw_name );
1611
/***************************************************************************
1612
Make a server_info struct from the info3 returned by a domain logon
1613
***************************************************************************/
1615
NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
1616
const char *sent_nt_username,
1618
auth_serversupplied_info **server_info,
1619
struct netr_SamInfo3 *info3)
1623
NTSTATUS nt_status = NT_STATUS_OK;
1624
char *found_username = NULL;
1625
const char *nt_domain;
1626
const char *nt_username;
1627
struct samu *sam_account = NULL;
1630
bool username_was_mapped;
1632
uid_t uid = (uid_t)-1;
1633
gid_t gid = (gid_t)-1;
1635
auth_serversupplied_info *result;
1638
Here is where we should check the list of
1639
trusted domains, and verify that the SID
1643
sid_copy(&user_sid, info3->base.domain_sid);
1644
if (!sid_append_rid(&user_sid, info3->base.rid)) {
1645
return NT_STATUS_INVALID_PARAMETER;
1648
sid_copy(&group_sid, info3->base.domain_sid);
1649
if (!sid_append_rid(&group_sid, info3->base.primary_gid)) {
1650
return NT_STATUS_INVALID_PARAMETER;
1653
nt_username = talloc_strdup(mem_ctx, info3->base.account_name.string);
1655
/* If the server didn't give us one, just use the one we sent
1657
nt_username = sent_nt_username;
1660
nt_domain = talloc_strdup(mem_ctx, info3->base.domain.string);
1662
/* If the server didn't give us one, just use the one we sent
1667
/* try to fill the SAM account.. If getpwnam() fails, then try the
1668
add user script (2.2.x behavior).
1670
We use the _unmapped_ username here in an attempt to provide
1671
consistent username mapping behavior between kerberos and NTLM[SSP]
1672
authentication in domain mode security. I.E. Username mapping
1673
should be applied to the fully qualified username
1674
(e.g. DOMAIN\user) and not just the login name. Yes this means we
1675
called map_username() unnecessarily in make_user_info_map() but
1676
that is how the current code is designed. Making the change here
1677
is the least disruptive place. -- jerry */
1679
if ( !(sam_account = samu_new( NULL )) ) {
1680
return NT_STATUS_NO_MEMORY;
1683
/* this call will try to create the user if necessary */
1685
nt_status = fill_sam_account(mem_ctx, nt_domain, sent_nt_username,
1686
&found_username, &uid, &gid, sam_account,
1687
&username_was_mapped);
1690
/* if we still don't have a valid unix account check for
1691
'map to guest = bad uid' */
1693
if (!NT_STATUS_IS_OK(nt_status)) {
1694
TALLOC_FREE( sam_account );
1695
if ( lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_UID ) {
1696
make_server_info_guest(NULL, server_info);
1697
return NT_STATUS_OK;
1702
if (!pdb_set_nt_username(sam_account, nt_username, PDB_CHANGED)) {
1703
TALLOC_FREE(sam_account);
1704
return NT_STATUS_NO_MEMORY;
1707
if (!pdb_set_username(sam_account, nt_username, PDB_CHANGED)) {
1708
TALLOC_FREE(sam_account);
1709
return NT_STATUS_NO_MEMORY;
1712
if (!pdb_set_domain(sam_account, nt_domain, PDB_CHANGED)) {
1713
TALLOC_FREE(sam_account);
1714
return NT_STATUS_NO_MEMORY;
1717
if (!pdb_set_user_sid(sam_account, &user_sid, PDB_CHANGED)) {
1718
TALLOC_FREE(sam_account);
1719
return NT_STATUS_UNSUCCESSFUL;
1722
if (!pdb_set_group_sid(sam_account, &group_sid, PDB_CHANGED)) {
1723
TALLOC_FREE(sam_account);
1724
return NT_STATUS_UNSUCCESSFUL;
1727
if (!pdb_set_fullname(sam_account,
1728
info3->base.full_name.string,
1730
TALLOC_FREE(sam_account);
1731
return NT_STATUS_NO_MEMORY;
1734
if (!pdb_set_logon_script(sam_account,
1735
info3->base.logon_script.string,
1737
TALLOC_FREE(sam_account);
1738
return NT_STATUS_NO_MEMORY;
1741
if (!pdb_set_profile_path(sam_account,
1742
info3->base.profile_path.string,
1744
TALLOC_FREE(sam_account);
1745
return NT_STATUS_NO_MEMORY;
1748
if (!pdb_set_homedir(sam_account,
1749
info3->base.home_directory.string,
1751
TALLOC_FREE(sam_account);
1752
return NT_STATUS_NO_MEMORY;
1755
if (!pdb_set_dir_drive(sam_account,
1756
info3->base.home_drive.string,
1758
TALLOC_FREE(sam_account);
1759
return NT_STATUS_NO_MEMORY;
1762
if (!pdb_set_acct_ctrl(sam_account, info3->base.acct_flags, PDB_CHANGED)) {
1763
TALLOC_FREE(sam_account);
1764
return NT_STATUS_NO_MEMORY;
1767
if (!pdb_set_pass_last_set_time(
1769
nt_time_to_unix(info3->base.last_password_change),
1771
TALLOC_FREE(sam_account);
1772
return NT_STATUS_NO_MEMORY;
1775
if (!pdb_set_pass_can_change_time(
1777
nt_time_to_unix(info3->base.allow_password_change),
1779
TALLOC_FREE(sam_account);
1780
return NT_STATUS_NO_MEMORY;
1783
if (!pdb_set_pass_must_change_time(
1785
nt_time_to_unix(info3->base.force_password_change),
1787
TALLOC_FREE(sam_account);
1788
return NT_STATUS_NO_MEMORY;
1791
result = make_server_info(NULL);
1792
if (result == NULL) {
1793
DEBUG(4, ("make_server_info failed!\n"));
1794
TALLOC_FREE(sam_account);
1795
return NT_STATUS_NO_MEMORY;
1798
/* save this here to _net_sam_logon() doesn't fail (it assumes a
1799
valid struct samu) */
1801
result->sam_account = sam_account;
1802
result->unix_name = talloc_strdup(result, found_username);
1804
result->sanitized_username = sanitize_username(result,
1806
if (result->sanitized_username == NULL) {
1807
TALLOC_FREE(result);
1808
return NT_STATUS_NO_MEMORY;
1811
/* Fill in the unix info we found on the way */
1813
result->utok.uid = uid;
1814
result->utok.gid = gid;
1816
/* Create a 'combined' list of all SIDs we might want in the SD */
1818
result->num_sids = 0;
1819
result->sids = NULL;
1821
nt_status = sid_array_from_info3(result, info3,
1825
if (!NT_STATUS_IS_OK(nt_status)) {
1826
TALLOC_FREE(result);
1830
/* Ensure the primary group sid is at position 0. */
1831
sort_sid_array_for_smbd(result, &group_sid);
1833
result->login_server = talloc_strdup(result,
1834
info3->base.logon_server.string);
1836
/* ensure we are never given NULL session keys */
1840
if (memcmp(info3->base.key.key, zeros, sizeof(zeros)) == 0) {
1841
result->user_session_key = data_blob_null;
1843
result->user_session_key = data_blob_talloc(
1844
result, info3->base.key.key,
1845
sizeof(info3->base.key.key));
1848
if (memcmp(info3->base.LMSessKey.key, zeros, 8) == 0) {
1849
result->lm_session_key = data_blob_null;
1851
result->lm_session_key = data_blob_talloc(
1852
result, info3->base.LMSessKey.key,
1853
sizeof(info3->base.LMSessKey.key));
1856
result->nss_token |= username_was_mapped;
1858
*server_info = result;
1860
return NT_STATUS_OK;
1863
/*****************************************************************************
1864
Make a server_info struct from the wbcAuthUserInfo returned by a domain logon
1865
******************************************************************************/
1867
NTSTATUS make_server_info_wbcAuthUserInfo(TALLOC_CTX *mem_ctx,
1868
const char *sent_nt_username,
1870
const struct wbcAuthUserInfo *info,
1871
auth_serversupplied_info **server_info)
1875
NTSTATUS nt_status = NT_STATUS_OK;
1876
char *found_username = NULL;
1877
const char *nt_domain;
1878
const char *nt_username;
1879
struct samu *sam_account = NULL;
1882
bool username_was_mapped;
1885
uid_t uid = (uid_t)-1;
1886
gid_t gid = (gid_t)-1;
1888
auth_serversupplied_info *result;
1890
result = make_server_info(NULL);
1891
if (result == NULL) {
1892
DEBUG(4, ("make_server_info failed!\n"));
1893
return NT_STATUS_NO_MEMORY;
1897
Here is where we should check the list of
1898
trusted domains, and verify that the SID
1902
memcpy(&user_sid, &info->sids[0].sid, sizeof(user_sid));
1903
memcpy(&group_sid, &info->sids[1].sid, sizeof(group_sid));
1905
if (info->account_name) {
1906
nt_username = talloc_strdup(result, info->account_name);
1908
/* If the server didn't give us one, just use the one we sent
1910
nt_username = talloc_strdup(result, sent_nt_username);
1913
TALLOC_FREE(result);
1914
return NT_STATUS_NO_MEMORY;
1917
if (info->domain_name) {
1918
nt_domain = talloc_strdup(result, info->domain_name);
1920
/* If the server didn't give us one, just use the one we sent
1922
nt_domain = talloc_strdup(result, domain);
1925
TALLOC_FREE(result);
1926
return NT_STATUS_NO_MEMORY;
1929
/* try to fill the SAM account.. If getpwnam() fails, then try the
1930
add user script (2.2.x behavior).
1932
We use the _unmapped_ username here in an attempt to provide
1933
consistent username mapping behavior between kerberos and NTLM[SSP]
1934
authentication in domain mode security. I.E. Username mapping
1935
should be applied to the fully qualified username
1936
(e.g. DOMAIN\user) and not just the login name. Yes this means we
1937
called map_username() unnecessarily in make_user_info_map() but
1938
that is how the current code is designed. Making the change here
1939
is the least disruptive place. -- jerry */
1941
if ( !(sam_account = samu_new( result )) ) {
1942
TALLOC_FREE(result);
1943
return NT_STATUS_NO_MEMORY;
1946
/* this call will try to create the user if necessary */
1948
nt_status = fill_sam_account(result, nt_domain, sent_nt_username,
1949
&found_username, &uid, &gid, sam_account,
1950
&username_was_mapped);
1952
/* if we still don't have a valid unix account check for
1953
'map to guest = bad uid' */
1955
if (!NT_STATUS_IS_OK(nt_status)) {
1956
TALLOC_FREE( result );
1957
if ( lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_UID ) {
1958
make_server_info_guest(NULL, server_info);
1959
return NT_STATUS_OK;
1964
if (!pdb_set_nt_username(sam_account, nt_username, PDB_CHANGED)) {
1965
TALLOC_FREE(result);
1966
return NT_STATUS_NO_MEMORY;
1969
if (!pdb_set_username(sam_account, nt_username, PDB_CHANGED)) {
1970
TALLOC_FREE(result);
1971
return NT_STATUS_NO_MEMORY;
1974
if (!pdb_set_domain(sam_account, nt_domain, PDB_CHANGED)) {
1975
TALLOC_FREE(result);
1976
return NT_STATUS_NO_MEMORY;
1979
if (!pdb_set_user_sid(sam_account, &user_sid, PDB_CHANGED)) {
1980
TALLOC_FREE(result);
1981
return NT_STATUS_UNSUCCESSFUL;
1984
if (!pdb_set_group_sid(sam_account, &group_sid, PDB_CHANGED)) {
1985
TALLOC_FREE(result);
1986
return NT_STATUS_UNSUCCESSFUL;
1989
if (!pdb_set_fullname(sam_account, info->full_name, PDB_CHANGED)) {
1990
TALLOC_FREE(result);
1991
return NT_STATUS_NO_MEMORY;
1994
if (!pdb_set_logon_script(sam_account, info->logon_script, PDB_CHANGED)) {
1995
TALLOC_FREE(result);
1996
return NT_STATUS_NO_MEMORY;
1999
if (!pdb_set_profile_path(sam_account, info->profile_path, PDB_CHANGED)) {
2000
TALLOC_FREE(result);
2001
return NT_STATUS_NO_MEMORY;
2004
if (!pdb_set_homedir(sam_account, info->home_directory, PDB_CHANGED)) {
2005
TALLOC_FREE(result);
2006
return NT_STATUS_NO_MEMORY;
2009
if (!pdb_set_dir_drive(sam_account, info->home_drive, PDB_CHANGED)) {
2010
TALLOC_FREE(result);
2011
return NT_STATUS_NO_MEMORY;
2014
if (!pdb_set_acct_ctrl(sam_account, info->acct_flags, PDB_CHANGED)) {
2015
TALLOC_FREE(result);
2016
return NT_STATUS_NO_MEMORY;
2019
if (!pdb_set_pass_last_set_time(
2021
nt_time_to_unix(info->pass_last_set_time),
2023
TALLOC_FREE(result);
2024
return NT_STATUS_NO_MEMORY;
2027
if (!pdb_set_pass_can_change_time(
2029
nt_time_to_unix(info->pass_can_change_time),
2031
TALLOC_FREE(result);
2032
return NT_STATUS_NO_MEMORY;
2035
if (!pdb_set_pass_must_change_time(
2037
nt_time_to_unix(info->pass_must_change_time),
2039
TALLOC_FREE(result);
2040
return NT_STATUS_NO_MEMORY;
2043
/* save this here to _net_sam_logon() doesn't fail (it assumes a
2044
valid struct samu) */
2046
result->sam_account = sam_account;
2047
result->unix_name = talloc_strdup(result, found_username);
2049
result->sanitized_username = sanitize_username(result,
2051
result->login_server = talloc_strdup(result, info->logon_server);
2053
if ((result->unix_name == NULL)
2054
|| (result->sanitized_username == NULL)
2055
|| (result->login_server == NULL)) {
2056
TALLOC_FREE(result);
2057
return NT_STATUS_NO_MEMORY;
2060
/* Fill in the unix info we found on the way */
2062
result->utok.uid = uid;
2063
result->utok.gid = gid;
2065
/* Create a 'combined' list of all SIDs we might want in the SD */
2067
result->num_sids = info->num_sids - 2;
2068
result->sids = talloc_array(result, DOM_SID, result->num_sids);
2069
if (result->sids == NULL) {
2070
TALLOC_FREE(result);
2071
return NT_STATUS_NO_MEMORY;
2074
for (i=0; i < result->num_sids; i++) {
2075
memcpy(&result->sids[i], &info->sids[i+2].sid, sizeof(result->sids[i]));
2078
/* Ensure the primary group sid is at position 0. */
2079
sort_sid_array_for_smbd(result, &group_sid);
2081
/* ensure we are never given NULL session keys */
2085
if (memcmp(info->user_session_key, zeros, sizeof(zeros)) == 0) {
2086
result->user_session_key = data_blob_null;
2088
result->user_session_key = data_blob_talloc(
2089
result, info->user_session_key,
2090
sizeof(info->user_session_key));
2093
if (memcmp(info->lm_session_key, zeros, 8) == 0) {
2094
result->lm_session_key = data_blob_null;
2096
result->lm_session_key = data_blob_talloc(
2097
result, info->lm_session_key,
2098
sizeof(info->lm_session_key));
2101
result->nss_token |= username_was_mapped;
2103
*server_info = result;
2105
return NT_STATUS_OK;
2108
/***************************************************************************
2109
Free a user_info struct
2110
***************************************************************************/
2112
void free_user_info(auth_usersupplied_info **user_info)
2114
DEBUG(5,("attempting to free (and zero) a user_info structure\n"));
2115
if (*user_info != NULL) {
2116
if ((*user_info)->smb_name) {
2117
DEBUG(10,("structure was created for %s\n",
2118
(*user_info)->smb_name));
2120
SAFE_FREE((*user_info)->smb_name);
2121
SAFE_FREE((*user_info)->internal_username);
2122
SAFE_FREE((*user_info)->client_domain);
2123
SAFE_FREE((*user_info)->domain);
2124
SAFE_FREE((*user_info)->wksta_name);
2125
data_blob_free(&(*user_info)->lm_resp);
2126
data_blob_free(&(*user_info)->nt_resp);
2127
data_blob_clear_free(&(*user_info)->lm_interactive_pwd);
2128
data_blob_clear_free(&(*user_info)->nt_interactive_pwd);
2129
data_blob_clear_free(&(*user_info)->plaintext_password);
2130
ZERO_STRUCT(**user_info);
2132
SAFE_FREE(*user_info);
2135
/***************************************************************************
2136
Make an auth_methods struct
2137
***************************************************************************/
2139
bool make_auth_methods(struct auth_context *auth_context, auth_methods **auth_method)
2141
if (!auth_context) {
2142
smb_panic("no auth_context supplied to "
2143
"make_auth_methods()!\n");
2147
smb_panic("make_auth_methods: pointer to auth_method pointer "
2151
*auth_method = TALLOC_P(auth_context->mem_ctx, auth_methods);
2152
if (!*auth_method) {
2153
DEBUG(0,("make_auth_method: malloc failed!\n"));
2156
ZERO_STRUCTP(*auth_method);
2162
* Verify whether or not given domain is trusted.
2164
* @param domain_name name of the domain to be verified
2165
* @return true if domain is one of the trusted once or
2166
* false if otherwise
2169
bool is_trusted_domain(const char* dom_name)
2171
DOM_SID trustdom_sid;
2174
/* no trusted domains for a standalone server */
2176
if ( lp_server_role() == ROLE_STANDALONE )
2179
if (dom_name == NULL || dom_name[0] == '\0') {
2183
if (strequal(dom_name, get_global_sam_name())) {
2187
/* if we are a DC, then check for a direct trust relationships */
2191
DEBUG (5,("is_trusted_domain: Checking for domain trust with "
2192
"[%s]\n", dom_name ));
2193
ret = pdb_get_trusteddom_pw(dom_name, NULL, NULL, NULL);
2201
/* If winbind is around, ask it */
2203
result = wb_is_trusted_domain(dom_name);
2205
if (result == WBC_ERR_SUCCESS) {
2209
if (result == WBC_ERR_DOMAIN_NOT_FOUND) {
2210
/* winbind could not find the domain */
2214
/* The only other possible result is that winbind is not up
2215
and running. We need to update the trustdom_cache
2218
update_trustdom_cache();
2221
/* now the trustdom cache should be available a DC could still
2222
* have a transitive trust so fall back to the cache of trusted
2223
* domains (like a domain member would use */
2225
if ( trustdom_cache_fetch(dom_name, &trustdom_sid) ) {
added
removed
source3/auth/auth_util.c
