2 * Unix SMB/CIFS implementation.
3 * Copyright (C) Jeremy Allison 1995-1998
4 * Copyright (C) Tim Potter 2001
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 3 of the License, or (at your
9 * option) any later version.
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, see <http://www.gnu.org/licenses/>. */
21 #include "../librpc/gen_ndr/samr.h"
23 extern bool AllowDebugChange
;
26 * Next two lines needed for SunOS and don't
27 * hurt anything else...
32 /* forced running in root-mode */
33 static bool got_username
= False
;
34 static bool stdin_passwd_get
= False
;
35 static fstring user_name
;
36 static char *new_passwd
= NULL
;
37 static const char *remote_machine
= NULL
;
39 static fstring ldap_secret
;
42 /*********************************************************
43 Print command usage on stderr and die.
44 **********************************************************/
45 static void usage(void)
47 printf("When run by root:\n");
48 printf(" smbpasswd [options] [username]\n");
49 printf("otherwise:\n");
50 printf(" smbpasswd [options]\n\n");
53 printf(" -L local mode (must be first option)\n");
54 printf(" -h print this usage message\n");
55 printf(" -s use stdin for password prompt\n");
56 printf(" -c smb.conf file Use the given path to the smb.conf file\n");
57 printf(" -D LEVEL debug level\n");
58 printf(" -r MACHINE remote machine\n");
59 printf(" -U USER remote username\n");
61 printf("extra options when run by root or in local mode:\n");
62 printf(" -a add user\n");
63 printf(" -d disable user\n");
64 printf(" -e enable user\n");
65 printf(" -i interdomain trust account\n");
66 printf(" -m machine trust account\n");
67 printf(" -n set no password\n");
68 printf(" -W use stdin ldap admin password\n");
69 printf(" -w PASSWORD ldap admin password\n");
70 printf(" -x delete user\n");
71 printf(" -R ORDER name resolve order\n");
76 static void set_line_buffering(FILE *f
)
78 setvbuf(f
, NULL
, _IOLBF
, 0);
81 /*******************************************************************
82 Process command line options
83 ******************************************************************/
85 static int process_options(int argc
, char **argv
, int local_flags
)
88 const char *configfile
= get_dyn_CONFIGFILE();
90 local_flags
|= LOCAL_SET_PASSWORD
;
92 ZERO_STRUCT(user_name
);
96 while ((ch
= getopt(argc
, argv
, "c:axdehminjr:sw:R:D:U:LW")) != EOF
) {
99 #if !defined(NSS_WRAPPER)
101 fprintf(stderr
, "smbpasswd -L can only be used by root.\n");
105 local_flags
|= LOCAL_AM_ROOT
;
111 local_flags
|= LOCAL_ADD_USER
;
114 local_flags
|= LOCAL_DELETE_USER
;
115 local_flags
&= ~LOCAL_SET_PASSWORD
;
118 local_flags
|= LOCAL_DISABLE_USER
;
119 local_flags
&= ~LOCAL_SET_PASSWORD
;
122 local_flags
|= LOCAL_ENABLE_USER
;
123 local_flags
&= ~LOCAL_SET_PASSWORD
;
126 local_flags
|= LOCAL_TRUST_ACCOUNT
;
129 local_flags
|= LOCAL_INTERDOM_ACCOUNT
;
132 d_printf("See 'net join' for this functionality\n");
136 local_flags
|= LOCAL_SET_NO_PASSWORD
;
137 local_flags
&= ~LOCAL_SET_PASSWORD
;
138 new_passwd
= smb_xstrdup("NO PASSWORD");
141 remote_machine
= optarg
;
144 set_line_buffering(stdin
);
145 set_line_buffering(stdout
);
146 set_line_buffering(stderr
);
147 stdin_passwd_get
= True
;
150 local_flags
|= LOCAL_SET_LDAP_ADMIN_PW
;
151 fstrcpy(ldap_secret
, optarg
);
154 lp_set_name_resolve_order(optarg
);
157 DEBUGLEVEL
= atoi(optarg
);
161 fstrcpy(user_name
, optarg
);
164 local_flags
|= LOCAL_SET_LDAP_ADMIN_PW
;
180 fstrcpy(user_name
, "");
183 if (!(local_flags
& LOCAL_AM_ROOT
)) {
189 fstrcpy(user_name
, argv
[0]);
197 if (!lp_load(configfile
,True
,False
,False
,True
)) {
198 fprintf(stderr
, "Can't load %s - run testparm to debug it\n",
206 /*************************************************************
207 Utility function to prompt for new password.
208 *************************************************************/
209 static char *prompt_for_new_password(bool stdin_get
)
216 p
= get_pass("New SMB password:", stdin_get
);
221 p
= get_pass("Retype new SMB password:", stdin_get
);
223 if (strcmp(p
, new_pw
)) {
224 fprintf(stderr
, "Mismatch - password unchanged.\n");
234 /*************************************************************
235 Change a password either locally or remotely.
236 *************************************************************/
238 static NTSTATUS
password_change(const char *remote_mach
, char *username
,
239 char *old_passwd
, char *new_pw
,
243 char *err_str
= NULL
;
244 char *msg_str
= NULL
;
246 if (remote_mach
!= NULL
) {
247 if (local_flags
& (LOCAL_ADD_USER
|LOCAL_DELETE_USER
|
248 LOCAL_DISABLE_USER
|LOCAL_ENABLE_USER
|
249 LOCAL_TRUST_ACCOUNT
|LOCAL_SET_NO_PASSWORD
)) {
250 /* these things can't be done remotely yet */
251 fprintf(stderr
, "Invalid remote operation!\n");
252 return NT_STATUS_UNSUCCESSFUL
;
254 ret
= remote_password_change(remote_mach
, username
,
255 old_passwd
, new_pw
, &err_str
);
257 ret
= local_password_change(username
, local_flags
, new_pw
,
262 printf("%s", msg_str
);
265 fprintf(stderr
, "%s", err_str
);
267 if (!NT_STATUS_IS_OK(ret
) && !err_str
) {
268 fprintf(stderr
, "Failed to change password!\n");
276 /*******************************************************************
277 Store the LDAP admin password in secrets.tdb
278 ******************************************************************/
279 static bool store_ldap_admin_pw (char* pw
)
287 return secrets_store_ldap_pw(lp_ldap_admin_dn(), pw
);
291 /*************************************************************
292 Handle password changing for root.
293 *************************************************************/
295 static int process_root(int local_flags
)
299 char *old_passwd
= NULL
;
301 if (local_flags
& LOCAL_SET_LDAP_ADMIN_PW
) {
302 char *ldap_admin_dn
= lp_ldap_admin_dn();
303 if ( ! *ldap_admin_dn
) {
304 DEBUG(0,("ERROR: 'ldap admin dn' not defined! Please check your smb.conf\n"));
308 printf("Setting stored password for \"%s\" in secrets.tdb\n", ldap_admin_dn
);
309 if ( ! *ldap_secret
) {
310 new_passwd
= prompt_for_new_password(stdin_passwd_get
);
311 fstrcpy(ldap_secret
, new_passwd
);
313 if (!store_ldap_admin_pw(ldap_secret
)) {
314 DEBUG(0,("ERROR: Failed to store the ldap admin password!\n"));
319 /* Ensure passdb startup(). */
320 if(!initialize_password_db(False
, NULL
)) {
321 DEBUG(0, ("Failed to open passdb!\n"));
325 /* Ensure we have a SAM sid. */
326 get_global_sam_sid();
329 * Ensure both add/delete user are not set
330 * Ensure add/delete user and either remote machine or join domain are
333 if(((local_flags
& (LOCAL_ADD_USER
|LOCAL_DELETE_USER
)) == (LOCAL_ADD_USER
|LOCAL_DELETE_USER
)) ||
334 ((local_flags
& (LOCAL_ADD_USER
|LOCAL_DELETE_USER
)) &&
335 (remote_machine
!= NULL
))) {
339 /* Only load interfaces if we are doing network operations. */
341 if (remote_machine
) {
345 if (!user_name
[0] && (pwd
= getpwuid_alloc(talloc_tos(), geteuid()))) {
346 fstrcpy(user_name
, pwd
->pw_name
);
351 fprintf(stderr
,"You must specify a username\n");
355 if (local_flags
& LOCAL_TRUST_ACCOUNT
) {
356 /* add the $ automatically */
360 * Remove any trailing '$' before we
361 * generate the initial machine password.
364 if (user_name
[strlen(user_name
)-1] == '$') {
365 user_name
[strlen(user_name
)-1] = 0;
368 if (local_flags
& LOCAL_ADD_USER
) {
369 SAFE_FREE(new_passwd
);
370 new_passwd
= smb_xstrdup(user_name
);
371 strlower_m(new_passwd
);
375 * Now ensure the username ends in '$' for
379 slprintf(buf
, sizeof(buf
)-1, "%s$", user_name
);
380 fstrcpy(user_name
, buf
);
381 } else if (local_flags
& LOCAL_INTERDOM_ACCOUNT
) {
384 if ((local_flags
& LOCAL_ADD_USER
) && (new_passwd
== NULL
)) {
386 * Prompt for trusting domain's account password
388 new_passwd
= prompt_for_new_password(stdin_passwd_get
);
390 fprintf(stderr
, "Unable to get newpassword.\n");
395 /* prepare uppercased and '$' terminated username */
396 slprintf(buf
, sizeof(buf
) - 1, "%s$", user_name
);
397 fstrcpy(user_name
, buf
);
401 if (remote_machine
!= NULL
) {
402 old_passwd
= get_pass("Old SMB password:",stdin_passwd_get
);
404 fprintf(stderr
, "Unable to get old password.\n");
409 if (!(local_flags
& LOCAL_SET_PASSWORD
)) {
412 * If we are trying to enable a user, first we need to find out
413 * if they are using a modern version of the smbpasswd file that
414 * disables a user by just writing a flag into the file. If so
415 * then we can re-enable a user without prompting for a new
416 * password. If not (ie. they have a no stored password in the
417 * smbpasswd file) then we need to prompt for a new password.
420 if(local_flags
& LOCAL_ENABLE_USER
) {
421 struct samu
*sampass
= NULL
;
423 sampass
= samu_new( NULL
);
425 fprintf(stderr
, "talloc fail for struct samu.\n");
428 if (!pdb_getsampwnam(sampass
, user_name
)) {
429 fprintf(stderr
, "Failed to find user %s in passdb backend.\n",
434 if(pdb_get_nt_passwd(sampass
) == NULL
) {
435 local_flags
|= LOCAL_SET_PASSWORD
;
437 TALLOC_FREE(sampass
);
441 if((local_flags
& LOCAL_SET_PASSWORD
) && (new_passwd
== NULL
)) {
443 new_passwd
= prompt_for_new_password(stdin_passwd_get
);
445 fprintf(stderr
, "Unable to get new password.\n");
451 if (!NT_STATUS_IS_OK(password_change(remote_machine
, user_name
,
452 old_passwd
, new_passwd
,
459 printf("Password changed for user %s on %s.\n", user_name
, remote_machine
);
460 } else if(!(local_flags
& (LOCAL_ADD_USER
|LOCAL_DISABLE_USER
|LOCAL_ENABLE_USER
|LOCAL_DELETE_USER
|LOCAL_SET_NO_PASSWORD
|LOCAL_SET_PASSWORD
))) {
461 struct samu
*sampass
= NULL
;
463 sampass
= samu_new( NULL
);
465 fprintf(stderr
, "talloc fail for struct samu.\n");
469 if (!pdb_getsampwnam(sampass
, user_name
)) {
470 fprintf(stderr
, "Failed to find user %s in passdb backend.\n",
475 printf("Password changed for user %s.", user_name
);
476 if(pdb_get_acct_ctrl(sampass
)&ACB_DISABLED
) {
477 printf(" User has disabled flag set.");
479 if(pdb_get_acct_ctrl(sampass
) & ACB_PWNOTREQ
) {
480 printf(" User has no password flag set.");
483 TALLOC_FREE(sampass
);
487 SAFE_FREE(old_passwd
);
488 SAFE_FREE(new_passwd
);
493 /*************************************************************
494 Handle password changing for non-root.
495 *************************************************************/
497 static int process_nonroot(int local_flags
)
499 struct passwd
*pwd
= NULL
;
504 if (local_flags
& ~(LOCAL_AM_ROOT
| LOCAL_SET_PASSWORD
)) {
505 /* Extra flags that we can't honor non-root */
510 pwd
= getpwuid_alloc(talloc_tos(), getuid());
512 fstrcpy(user_name
,pwd
->pw_name
);
515 fprintf(stderr
, "smbpasswd: cannot lookup user name for uid %u\n", (unsigned int)getuid());
521 * A non-root user is always setting a password
522 * via a remote machine (even if that machine is
526 load_interfaces(); /* Delayed from main() */
528 if (remote_machine
== NULL
) {
529 remote_machine
= "127.0.0.1";
532 if (remote_machine
!= NULL
) {
533 old_pw
= get_pass("Old SMB password:",stdin_passwd_get
);
537 new_pw
= prompt_for_new_password(stdin_passwd_get
);
540 new_pw
= smb_xstrdup(new_passwd
);
543 fprintf(stderr
, "Unable to get new password.\n");
547 if (!NT_STATUS_IS_OK(password_change(remote_machine
, user_name
, old_pw
,
553 printf("Password changed for user %s\n", user_name
);
564 /*********************************************************
566 **********************************************************/
567 int main(int argc
, char **argv
)
569 TALLOC_CTX
*frame
= talloc_stackframe();
573 AllowDebugChange
= False
;
575 #if defined(HAVE_SET_AUTH_PARAMETERS)
576 set_auth_parameters(argc
, argv
);
577 #endif /* HAVE_SET_AUTH_PARAMETERS */
580 local_flags
= LOCAL_AM_ROOT
;
585 local_flags
= process_options(argc
, argv
, local_flags
);
587 setup_logging("smbpasswd", True
);
590 * Set the machine NETBIOS name if not already
591 * set from the config file.
597 /* Check the effective uid - make sure we are not setuid */
598 if (is_setuid_root()) {
599 fprintf(stderr
, "smbpasswd must *NOT* be setuid root.\n");
603 if (local_flags
& LOCAL_AM_ROOT
) {
605 return process_root(local_flags
);
608 ret
= process_nonroot(local_flags
);