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 2 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, write to the Free Software Foundation, Inc., 675
18 * Mass Ave, Cambridge, MA 02139, USA. */
22 extern BOOL AllowDebugChange;
25 * Next two lines needed for SunOS and don't
26 * hurt anything else...
31 /* forced running in root-mode */
32 static BOOL got_username = False;
33 static BOOL stdin_passwd_get = False;
34 static fstring user_name;
35 static char *new_passwd = NULL;
36 static const char *remote_machine = NULL;
38 static fstring ldap_secret;
41 /*********************************************************
42 Print command usage on stderr and die.
43 **********************************************************/
44 static void usage(void)
46 printf("When run by root:\n");
47 printf(" smbpasswd [options] [username]\n");
48 printf("otherwise:\n");
49 printf(" smbpasswd [options]\n\n");
52 printf(" -L local mode (must be first option)\n");
53 printf(" -h print this usage message\n");
54 printf(" -s use stdin for password prompt\n");
55 printf(" -c smb.conf file Use the given path to the smb.conf file\n");
56 printf(" -D LEVEL debug level\n");
57 printf(" -r MACHINE remote machine\n");
58 printf(" -U USER remote username\n");
60 printf("extra options when run by root or in local mode:\n");
61 printf(" -a add user\n");
62 printf(" -d disable user\n");
63 printf(" -e enable user\n");
64 printf(" -i interdomain trust account\n");
65 printf(" -m machine trust account\n");
66 printf(" -n set no password\n");
67 printf(" -W use stdin ldap admin password\n");
68 printf(" -w PASSWORD ldap admin password\n");
69 printf(" -x delete user\n");
70 printf(" -R ORDER name resolve order\n");
75 static void set_line_buffering(FILE *f)
77 setvbuf(f, NULL, _IOLBF, 0);
80 /*******************************************************************
81 Process command line options
82 ******************************************************************/
84 static int process_options(int argc, char **argv, int local_flags)
88 pstrcpy(configfile, 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 local_flags |= LOCAL_AM_ROOT;
102 pstrcpy(configfile,optarg);
105 local_flags |= LOCAL_ADD_USER;
108 local_flags |= LOCAL_DELETE_USER;
109 local_flags &= ~LOCAL_SET_PASSWORD;
112 local_flags |= LOCAL_DISABLE_USER;
113 local_flags &= ~LOCAL_SET_PASSWORD;
116 local_flags |= LOCAL_ENABLE_USER;
117 local_flags &= ~LOCAL_SET_PASSWORD;
120 local_flags |= LOCAL_TRUST_ACCOUNT;
123 local_flags |= LOCAL_INTERDOM_ACCOUNT;
126 d_printf("See 'net join' for this functionality\n");
130 local_flags |= LOCAL_SET_NO_PASSWORD;
131 local_flags &= ~LOCAL_SET_PASSWORD;
132 new_passwd = smb_xstrdup("NO PASSWORD");
135 remote_machine = optarg;
138 set_line_buffering(stdin);
139 set_line_buffering(stdout);
140 set_line_buffering(stderr);
141 stdin_passwd_get = True;
144 local_flags |= LOCAL_SET_LDAP_ADMIN_PW;
145 fstrcpy(ldap_secret, optarg);
148 lp_set_name_resolve_order(optarg);
151 DEBUGLEVEL = atoi(optarg);
155 fstrcpy(user_name, optarg);
158 local_flags |= LOCAL_SET_LDAP_ADMIN_PW;
174 fstrcpy(user_name, "");
177 if (!(local_flags & LOCAL_AM_ROOT)) {
183 fstrcpy(user_name, argv[0]);
191 if (!lp_load(configfile,True,False,False,True)) {
192 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
200 /*************************************************************
201 Utility function to prompt for new password.
202 *************************************************************/
203 static char *prompt_for_new_password(BOOL stdin_get)
210 p = get_pass("New SMB password:", stdin_get);
215 p = get_pass("Retype new SMB password:", stdin_get);
217 if (strcmp(p, new_pw)) {
218 fprintf(stderr, "Mismatch - password unchanged.\n");
228 /*************************************************************
229 Change a password either locally or remotely.
230 *************************************************************/
232 static NTSTATUS password_change(const char *remote_mach, char *username,
233 char *old_passwd, char *new_pw,
240 if (remote_mach != NULL) {
241 if (local_flags & (LOCAL_ADD_USER|LOCAL_DELETE_USER|LOCAL_DISABLE_USER|LOCAL_ENABLE_USER|
242 LOCAL_TRUST_ACCOUNT|LOCAL_SET_NO_PASSWORD)) {
243 /* these things can't be done remotely yet */
244 return NT_STATUS_UNSUCCESSFUL;
246 ret = remote_password_change(remote_mach, username,
247 old_passwd, new_pw, err_str, sizeof(err_str));
249 fprintf(stderr, "%s", err_str);
253 ret = local_password_change(username, local_flags, new_pw,
254 err_str, sizeof(err_str), msg_str, sizeof(msg_str));
257 printf("%s", msg_str);
259 fprintf(stderr, "%s", err_str);
264 /*******************************************************************
265 Store the LDAP admin password in secrets.tdb
266 ******************************************************************/
267 static BOOL store_ldap_admin_pw (char* pw)
275 return secrets_store_ldap_pw(lp_ldap_admin_dn(), pw);
279 /*************************************************************
280 Handle password changing for root.
281 *************************************************************/
283 static int process_root(int local_flags)
287 char *old_passwd = NULL;
289 if (local_flags & LOCAL_SET_LDAP_ADMIN_PW) {
290 char *ldap_admin_dn = lp_ldap_admin_dn();
291 if ( ! *ldap_admin_dn ) {
292 DEBUG(0,("ERROR: 'ldap admin dn' not defined! Please check your smb.conf\n"));
296 printf("Setting stored password for \"%s\" in secrets.tdb\n", ldap_admin_dn);
297 if ( ! *ldap_secret ) {
298 new_passwd = prompt_for_new_password(stdin_passwd_get);
299 fstrcpy(ldap_secret, new_passwd);
301 if (!store_ldap_admin_pw(ldap_secret)) {
302 DEBUG(0,("ERROR: Failed to store the ldap admin password!\n"));
307 /* Ensure passdb startup(). */
308 if(!initialize_password_db(False)) {
309 DEBUG(0, ("Failed to open passdb!\n"));
313 /* Ensure we have a SAM sid. */
314 get_global_sam_sid();
317 * Ensure both add/delete user are not set
318 * Ensure add/delete user and either remote machine or join domain are
321 if(((local_flags & (LOCAL_ADD_USER|LOCAL_DELETE_USER)) == (LOCAL_ADD_USER|LOCAL_DELETE_USER)) ||
322 ((local_flags & (LOCAL_ADD_USER|LOCAL_DELETE_USER)) &&
323 (remote_machine != NULL))) {
327 /* Only load interfaces if we are doing network operations. */
329 if (remote_machine) {
333 if (!user_name[0] && (pwd = getpwuid_alloc(NULL, geteuid()))) {
334 fstrcpy(user_name, pwd->pw_name);
339 fprintf(stderr,"You must specify a username\n");
343 if (local_flags & LOCAL_TRUST_ACCOUNT) {
344 /* add the $ automatically */
348 * Remove any trailing '$' before we
349 * generate the initial machine password.
352 if (user_name[strlen(user_name)-1] == '$') {
353 user_name[strlen(user_name)-1] = 0;
356 if (local_flags & LOCAL_ADD_USER) {
357 SAFE_FREE(new_passwd);
358 new_passwd = smb_xstrdup(user_name);
359 strlower_m(new_passwd);
363 * Now ensure the username ends in '$' for
367 slprintf(buf, sizeof(buf)-1, "%s$", user_name);
368 fstrcpy(user_name, buf);
369 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
372 if ((local_flags & LOCAL_ADD_USER) && (new_passwd == NULL)) {
374 * Prompt for trusting domain's account password
376 new_passwd = prompt_for_new_password(stdin_passwd_get);
378 fprintf(stderr, "Unable to get newpassword.\n");
383 /* prepare uppercased and '$' terminated username */
384 slprintf(buf, sizeof(buf) - 1, "%s$", user_name);
385 fstrcpy(user_name, buf);
389 if (remote_machine != NULL) {
390 old_passwd = get_pass("Old SMB password:",stdin_passwd_get);
393 if (!(local_flags & LOCAL_SET_PASSWORD)) {
396 * If we are trying to enable a user, first we need to find out
397 * if they are using a modern version of the smbpasswd file that
398 * disables a user by just writing a flag into the file. If so
399 * then we can re-enable a user without prompting for a new
400 * password. If not (ie. they have a no stored password in the
401 * smbpasswd file) then we need to prompt for a new password.
404 if(local_flags & LOCAL_ENABLE_USER) {
405 struct samu *sampass = NULL;
407 sampass = samu_new( NULL );
409 fprintf(stderr, "talloc fail for struct samu.\n");
412 if (!pdb_getsampwnam(sampass, user_name)) {
413 fprintf(stderr, "Failed to find user %s in passdb backend.\n",
418 if(pdb_get_nt_passwd(sampass) == NULL) {
419 local_flags |= LOCAL_SET_PASSWORD;
421 TALLOC_FREE(sampass);
425 if((local_flags & LOCAL_SET_PASSWORD) && (new_passwd == NULL)) {
426 new_passwd = prompt_for_new_password(stdin_passwd_get);
429 fprintf(stderr, "Unable to get new password.\n");
435 if (!NT_STATUS_IS_OK(password_change(remote_machine, user_name,
436 old_passwd, new_passwd,
438 fprintf(stderr,"Failed to modify password entry for user %s\n", user_name);
444 printf("Password changed for user %s on %s.\n", user_name, remote_machine );
445 } else if(!(local_flags & (LOCAL_ADD_USER|LOCAL_DISABLE_USER|LOCAL_ENABLE_USER|LOCAL_DELETE_USER|LOCAL_SET_NO_PASSWORD|LOCAL_SET_PASSWORD))) {
446 struct samu *sampass = NULL;
448 sampass = samu_new( NULL );
450 fprintf(stderr, "talloc fail for struct samu.\n");
454 if (!pdb_getsampwnam(sampass, user_name)) {
455 fprintf(stderr, "Failed to find user %s in passdb backend.\n",
460 printf("Password changed for user %s.", user_name );
461 if(pdb_get_acct_ctrl(sampass)&ACB_DISABLED) {
462 printf(" User has disabled flag set.");
464 if(pdb_get_acct_ctrl(sampass) & ACB_PWNOTREQ) {
465 printf(" User has no password flag set.");
468 TALLOC_FREE(sampass);
472 SAFE_FREE(new_passwd);
477 /*************************************************************
478 Handle password changing for non-root.
479 *************************************************************/
481 static int process_nonroot(int local_flags)
483 struct passwd *pwd = NULL;
488 if (local_flags & ~(LOCAL_AM_ROOT | LOCAL_SET_PASSWORD)) {
489 /* Extra flags that we can't honor non-root */
494 pwd = getpwuid_alloc(NULL, getuid());
496 fstrcpy(user_name,pwd->pw_name);
499 fprintf(stderr, "smbpasswd: cannot lookup user name for uid %u\n", (unsigned int)getuid());
505 * A non-root user is always setting a password
506 * via a remote machine (even if that machine is
510 load_interfaces(); /* Delayed from main() */
512 if (remote_machine == NULL) {
513 remote_machine = "127.0.0.1";
516 if (remote_machine != NULL) {
517 old_pw = get_pass("Old SMB password:",stdin_passwd_get);
521 new_pw = prompt_for_new_password(stdin_passwd_get);
524 new_pw = smb_xstrdup(new_passwd);
527 fprintf(stderr, "Unable to get new password.\n");
531 if (!NT_STATUS_IS_OK(password_change(remote_machine, user_name, old_pw,
533 fprintf(stderr,"Failed to change password for %s\n", user_name);
538 printf("Password changed for user %s\n", user_name);
549 /*********************************************************
551 **********************************************************/
552 int main(int argc, char **argv)
556 AllowDebugChange = False;
558 #if defined(HAVE_SET_AUTH_PARAMETERS)
559 set_auth_parameters(argc, argv);
560 #endif /* HAVE_SET_AUTH_PARAMETERS */
563 local_flags = LOCAL_AM_ROOT;
568 local_flags = process_options(argc, argv, local_flags);
570 setup_logging("smbpasswd", True);
573 * Set the machine NETBIOS name if not already
574 * set from the config file.
580 /* Check the effective uid - make sure we are not setuid */
581 if (is_setuid_root()) {
582 fprintf(stderr, "smbpasswd must *NOT* be setuid root.\n");
586 if (local_flags & LOCAL_AM_ROOT) {
588 return process_root(local_flags);
591 return process_nonroot(local_flags);