--- /dev/null
+/*
+ * Unix SMB/CIFS implementation.
+ * Copyright (C) Jeremy Allison 1995-1998
+ * Copyright (C) Tim Potter 2001
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 675
+ * Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "includes.h"
+
+extern BOOL AllowDebugChange;
+
+/*
+ * Next two lines needed for SunOS and don't
+ * hurt anything else...
+ */
+extern char *optarg;
+extern int optind;
+
+/* forced running in root-mode */
+static BOOL got_username = False;
+static BOOL stdin_passwd_get = False;
+static fstring user_name;
+static char *new_passwd = NULL;
+static const char *remote_machine = NULL;
+
+static fstring ldap_secret;
+
+
+/*********************************************************
+ Print command usage on stderr and die.
+**********************************************************/
+static void usage(void)
+{
+ printf("When run by root:\n");
+ printf(" smbpasswd [options] [username]\n");
+ printf("otherwise:\n");
+ printf(" smbpasswd [options]\n\n");
+
+ printf("options:\n");
+ printf(" -L local mode (must be first option)\n");
+ printf(" -h print this usage message\n");
+ printf(" -s use stdin for password prompt\n");
+ printf(" -c smb.conf file Use the given path to the smb.conf file\n");
+ printf(" -D LEVEL debug level\n");
+ printf(" -r MACHINE remote machine\n");
+ printf(" -U USER remote username\n");
+
+ printf("extra options when run by root or in local mode:\n");
+ printf(" -a add user\n");
+ printf(" -d disable user\n");
+ printf(" -e enable user\n");
+ printf(" -i interdomain trust account\n");
+ printf(" -m machine trust account\n");
+ printf(" -n set no password\n");
+ printf(" -w PASSWORD ldap admin password\n");
+ printf(" -x delete user\n");
+ printf(" -R ORDER name resolve order\n");
+
+ exit(1);
+}
+
+static void set_line_buffering(FILE *f)
+{
+ setvbuf(f, NULL, _IOLBF, 0);
+}
+
+/*******************************************************************
+ Process command line options
+ ******************************************************************/
+
+static int process_options(int argc, char **argv, int local_flags)
+{
+ int ch;
+ pstring configfile;
+ pstrcpy(configfile, dyn_CONFIGFILE);
+
+ local_flags |= LOCAL_SET_PASSWORD;
+
+ ZERO_STRUCT(user_name);
+
+ user_name[0] = '\0';
+
+ while ((ch = getopt(argc, argv, "c:axdehminjr:sw:R:D:U:LW")) != EOF) {
+ switch(ch) {
+ case 'L':
+ local_flags |= LOCAL_AM_ROOT;
+ break;
+ case 'c':
+ pstrcpy(configfile,optarg);
+ break;
+ case 'a':
+ local_flags |= LOCAL_ADD_USER;
+ break;
+ case 'x':
+ local_flags |= LOCAL_DELETE_USER;
+ local_flags &= ~LOCAL_SET_PASSWORD;
+ break;
+ case 'd':
+ local_flags |= LOCAL_DISABLE_USER;
+ local_flags &= ~LOCAL_SET_PASSWORD;
+ break;
+ case 'e':
+ local_flags |= LOCAL_ENABLE_USER;
+ local_flags &= ~LOCAL_SET_PASSWORD;
+ break;
+ case 'm':
+ local_flags |= LOCAL_TRUST_ACCOUNT;
+ break;
+ case 'i':
+ local_flags |= LOCAL_INTERDOM_ACCOUNT;
+ break;
+ case 'j':
+ d_printf("See 'net join' for this functionality\n");
+ exit(1);
+ break;
+ case 'n':
+ local_flags |= LOCAL_SET_NO_PASSWORD;
+ local_flags &= ~LOCAL_SET_PASSWORD;
+ new_passwd = smb_xstrdup("NO PASSWORD");
+ break;
+ case 'r':
+ remote_machine = optarg;
+ break;
+ case 's':
+ set_line_buffering(stdin);
+ set_line_buffering(stdout);
+ set_line_buffering(stderr);
+ stdin_passwd_get = True;
+ break;
+ case 'w':
+ local_flags |= LOCAL_SET_LDAP_ADMIN_PW;
+ fstrcpy(ldap_secret, optarg);
+ break;
+ case 'R':
+ lp_set_name_resolve_order(optarg);
+ break;
+ case 'D':
+ DEBUGLEVEL = atoi(optarg);
+ break;
+ case 'U': {
+ got_username = True;
+ fstrcpy(user_name, optarg);
+ break;
+ case 'W':
+ local_flags |= LOCAL_SET_LDAP_ADMIN_PW;
+ *ldap_secret = '\0';
+ break;
+ }
+ case 'h':
+ default:
+ usage();
+ }
+ }
+
+ argc -= optind;
+ argv += optind;
+
+ switch(argc) {
+ case 0:
+ if (!got_username)
+ fstrcpy(user_name, "");
+ break;
+ case 1:
+ if (!(local_flags & LOCAL_AM_ROOT)) {
+ usage();
+ } else {
+ if (got_username) {
+ usage();
+ } else {
+ fstrcpy(user_name, argv[0]);
+ }
+ }
+ break;
+ default:
+ usage();
+ }
+
+ if (!lp_load(configfile,True,False,False)) {
+ fprintf(stderr, "Can't load %s - run testparm to debug it\n",
+ dyn_CONFIGFILE);
+ exit(1);
+ }
+
+ return local_flags;
+}
+
+/*************************************************************
+ Utility function to prompt for new password.
+*************************************************************/
+static char *prompt_for_new_password(BOOL stdin_get)
+{
+ char *p;
+ fstring new_pw;
+
+ ZERO_ARRAY(new_pw);
+
+ p = get_pass("New SMB password:", stdin_get);
+
+ fstrcpy(new_pw, p);
+ SAFE_FREE(p);
+
+ p = get_pass("Retype new SMB password:", stdin_get);
+
+ if (strcmp(p, new_pw)) {
+ fprintf(stderr, "Mismatch - password unchanged.\n");
+ ZERO_ARRAY(new_pw);
+ SAFE_FREE(p);
+ return NULL;
+ }
+
+ return p;
+}
+
+
+/*************************************************************
+ Change a password either locally or remotely.
+*************************************************************/
+
+static BOOL password_change(const char *remote_mach, char *username,
+ char *old_passwd, char *new_pw, int local_flags)
+{
+ BOOL ret;
+ pstring err_str;
+ pstring msg_str;
+
+ if (remote_mach != NULL) {
+ if (local_flags & (LOCAL_ADD_USER|LOCAL_DELETE_USER|LOCAL_DISABLE_USER|LOCAL_ENABLE_USER|
+ LOCAL_TRUST_ACCOUNT|LOCAL_SET_NO_PASSWORD)) {
+ /* these things can't be done remotely yet */
+ return False;
+ }
+ ret = remote_password_change(remote_mach, username,
+ old_passwd, new_pw, err_str, sizeof(err_str));
+ if(*err_str)
+ fprintf(stderr, "%s", err_str);
+ return ret;
+ }
+
+ ret = local_password_change(username, local_flags, new_pw,
+ err_str, sizeof(err_str), msg_str, sizeof(msg_str));
+
+ if(*msg_str)
+ printf("%s", msg_str);
+ if(*err_str)
+ fprintf(stderr, "%s", err_str);
+
+ return ret;
+}
+
+/*******************************************************************
+ Store the LDAP admin password in secrets.tdb
+ ******************************************************************/
+static BOOL store_ldap_admin_pw (char* pw)
+{
+ if (!pw)
+ return False;
+
+ if (!secrets_init())
+ return False;
+
+ return secrets_store_ldap_pw(lp_ldap_admin_dn(), pw);
+}
+
+
+/*************************************************************
+ Handle password changing for root.
+*************************************************************/
+
+static int process_root(int local_flags)
+{
+ struct passwd *pwd;
+ int result = 0;
+ char *old_passwd = NULL;
+
+ if (local_flags & LOCAL_SET_LDAP_ADMIN_PW) {
+ printf("Setting stored password for \"%s\" in secrets.tdb\n",
+ lp_ldap_admin_dn());
+ if ( ! *ldap_secret ) {
+ new_passwd = prompt_for_new_password(stdin_passwd_get);
+ fstrcpy(ldap_secret, new_passwd);
+ }
+ if (!store_ldap_admin_pw(ldap_secret))
+ DEBUG(0,("ERROR: Failed to store the ldap admin password!\n"));
+ goto done;
+ }
+
+ /* Ensure passdb startup(). */
+ if(!initialize_password_db(False)) {
+ DEBUG(0, ("Failed to open passdb!\n"));
+ exit(1);
+ }
+
+ /* Ensure we have a SAM sid. */
+ get_global_sam_sid();
+
+ /*
+ * Ensure both add/delete user are not set
+ * Ensure add/delete user and either remote machine or join domain are
+ * not both set.
+ */
+ if(((local_flags & (LOCAL_ADD_USER|LOCAL_DELETE_USER)) == (LOCAL_ADD_USER|LOCAL_DELETE_USER)) ||
+ ((local_flags & (LOCAL_ADD_USER|LOCAL_DELETE_USER)) &&
+ (remote_machine != NULL))) {
+ usage();
+ }
+
+ /* Only load interfaces if we are doing network operations. */
+
+ if (remote_machine) {
+ load_interfaces();
+ }
+
+ if (!user_name[0] && (pwd = getpwuid_alloc(geteuid()))) {
+ fstrcpy(user_name, pwd->pw_name);
+ passwd_free(&pwd);
+ }
+
+ if (!user_name[0]) {
+ fprintf(stderr,"You must specify a username\n");
+ exit(1);
+ }
+
+ if (local_flags & LOCAL_TRUST_ACCOUNT) {
+ /* add the $ automatically */
+ static fstring buf;
+
+ /*
+ * Remove any trailing '$' before we
+ * generate the initial machine password.
+ */
+
+ if (user_name[strlen(user_name)-1] == '$') {
+ user_name[strlen(user_name)-1] = 0;
+ }
+
+ if (local_flags & LOCAL_ADD_USER) {
+ SAFE_FREE(new_passwd);
+ new_passwd = smb_xstrdup(user_name);
+ strlower_m(new_passwd);
+ }
+
+ /*
+ * Now ensure the username ends in '$' for
+ * the machine add.
+ */
+
+ slprintf(buf, sizeof(buf)-1, "%s$", user_name);
+ fstrcpy(user_name, buf);
+ } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
+ static fstring buf;
+
+ if ((local_flags & LOCAL_ADD_USER) && (new_passwd == NULL)) {
+ /*
+ * Prompt for trusting domain's account password
+ */
+ new_passwd = prompt_for_new_password(stdin_passwd_get);
+ if(!new_passwd) {
+ fprintf(stderr, "Unable to get newpassword.\n");
+ exit(1);
+ }
+ }
+
+ /* prepare uppercased and '$' terminated username */
+ slprintf(buf, sizeof(buf) - 1, "%s$", user_name);
+ fstrcpy(user_name, buf);
+
+ } else {
+
+ if (remote_machine != NULL) {
+ old_passwd = get_pass("Old SMB password:",stdin_passwd_get);
+ }
+
+ if (!(local_flags & LOCAL_SET_PASSWORD)) {
+
+ /*
+ * If we are trying to enable a user, first we need to find out
+ * if they are using a modern version of the smbpasswd file that
+ * disables a user by just writing a flag into the file. If so
+ * then we can re-enable a user without prompting for a new
+ * password. If not (ie. they have a no stored password in the
+ * smbpasswd file) then we need to prompt for a new password.
+ */
+
+ if(local_flags & LOCAL_ENABLE_USER) {
+ SAM_ACCOUNT *sampass = NULL;
+ BOOL ret;
+
+ pdb_init_sam(&sampass);
+ ret = pdb_getsampwnam(sampass, user_name);
+ if((ret) &&
+ (pdb_get_lanman_passwd(sampass) == NULL)) {
+ local_flags |= LOCAL_SET_PASSWORD;
+ }
+ pdb_free_sam(&sampass);
+ }
+ }
+
+ if((local_flags & LOCAL_SET_PASSWORD) && (new_passwd == NULL)) {
+ new_passwd = prompt_for_new_password(stdin_passwd_get);
+
+ if(!new_passwd) {
+ fprintf(stderr, "Unable to get new password.\n");
+ exit(1);
+ }
+ }
+ }
+
+ if (!password_change(remote_machine, user_name, old_passwd, new_passwd, local_flags)) {
+ fprintf(stderr,"Failed to modify password entry for user %s\n", user_name);
+ result = 1;
+ goto done;
+ }
+
+ if(remote_machine) {
+ printf("Password changed for user %s on %s.\n", user_name, remote_machine );
+ } else if(!(local_flags & (LOCAL_ADD_USER|LOCAL_DISABLE_USER|LOCAL_ENABLE_USER|LOCAL_DELETE_USER|LOCAL_SET_NO_PASSWORD|LOCAL_SET_PASSWORD))) {
+ SAM_ACCOUNT *sampass = NULL;
+ BOOL ret;
+
+ pdb_init_sam(&sampass);
+ ret = pdb_getsampwnam(sampass, user_name);
+
+ printf("Password changed for user %s.", user_name );
+ if( (ret != False) && (pdb_get_acct_ctrl(sampass)&ACB_DISABLED) )
+ printf(" User has disabled flag set.");
+ if((ret != False) && (pdb_get_acct_ctrl(sampass) & ACB_PWNOTREQ) )
+ printf(" User has no password flag set.");
+ printf("\n");
+ pdb_free_sam(&sampass);
+ }
+
+ done:
+ SAFE_FREE(new_passwd);
+ return result;
+}
+
+
+/*************************************************************
+ Handle password changing for non-root.
+*************************************************************/
+
+static int process_nonroot(int local_flags)
+{
+ struct passwd *pwd = NULL;
+ int result = 0;
+ char *old_pw = NULL;
+ char *new_pw = NULL;
+
+ if (local_flags & ~(LOCAL_AM_ROOT | LOCAL_SET_PASSWORD)) {
+ /* Extra flags that we can't honor non-root */
+ usage();
+ }
+
+ if (!user_name[0]) {
+ pwd = getpwuid_alloc(getuid());
+ if (pwd) {
+ fstrcpy(user_name,pwd->pw_name);
+ passwd_free(&pwd);
+ } else {
+ fprintf(stderr, "smbpasswd: cannot lookup user name for uid %u\n", (unsigned int)getuid());
+ exit(1);
+ }
+ }
+
+ /*
+ * A non-root user is always setting a password
+ * via a remote machine (even if that machine is
+ * localhost).
+ */
+
+ load_interfaces(); /* Delayed from main() */
+
+ if (remote_machine == NULL) {
+ remote_machine = "127.0.0.1";
+ }
+
+ if (remote_machine != NULL) {
+ old_pw = get_pass("Old SMB password:",stdin_passwd_get);
+ }
+
+ if (!new_passwd) {
+ new_pw = prompt_for_new_password(stdin_passwd_get);
+ }
+ else
+ new_pw = smb_xstrdup(new_passwd);
+
+ if (!new_pw) {
+ fprintf(stderr, "Unable to get new password.\n");
+ exit(1);
+ }
+
+ if (!password_change(remote_machine, user_name, old_pw, new_pw, 0)) {
+ fprintf(stderr,"Failed to change password for %s\n", user_name);
+ result = 1;
+ goto done;
+ }
+
+ printf("Password changed for user %s\n", user_name);
+
+ done:
+ SAFE_FREE(old_pw);
+ SAFE_FREE(new_pw);
+
+ return result;
+}
+
+
+
+/*********************************************************
+ Start here.
+**********************************************************/
+int main(int argc, char **argv)
+{
+ int local_flags = 0;
+
+ AllowDebugChange = False;
+
+#if defined(HAVE_SET_AUTH_PARAMETERS)
+ set_auth_parameters(argc, argv);
+#endif /* HAVE_SET_AUTH_PARAMETERS */
+
+ if (getuid() == 0) {
+ local_flags = LOCAL_AM_ROOT;
+ }
+
+ load_case_tables();
+
+ local_flags = process_options(argc, argv, local_flags);
+
+ setup_logging("smbpasswd", True);
+
+ /*
+ * Set the machine NETBIOS name if not already
+ * set from the config file.
+ */
+
+ if (!init_names())
+ return 1;
+
+ /* Check the effective uid - make sure we are not setuid */
+ if (is_setuid_root()) {
+ fprintf(stderr, "smbpasswd must *NOT* be setuid root.\n");
+ exit(1);
+ }
+
+ if (local_flags & LOCAL_AM_ROOT) {
+ secrets_init();
+ return process_root(local_flags);
+ }
+
+ return process_nonroot(local_flags);
+}
projects / samba / blobdiff