source3/lib/account_pol.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  account policy storage
   4  *  Copyright (C) Jean François Micouleau      1998-2001.
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 #include "includes.h"
  22 static TDB_CONTEXT *tdb; /* used for driver files */
  23
  24 #define DATABASE_VERSION 1
  25
  26 /****************************************************************************
  27  Open the account policy tdb.
  28 ****************************************************************************/
  29
  30 BOOL init_account_policy(void)
  31 {
  32         static pid_t local_pid;
  33         char *vstring = "INFO/version";
  34
  35         if (tdb && local_pid == sys_getpid())
  36                 return True;
  37         tdb = tdb_open_log(lock_path("account_policy.tdb"), 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600);
  38         if (!tdb) {
  39                 DEBUG(0,("Failed to open account policy database\n"));
  40                 return False;
  41         }
  42
  43         local_pid = sys_getpid();
  44
  45         /* handle a Samba upgrade */
  46         tdb_lock_bystring(tdb, vstring);
  47         if (tdb_fetch_int32(tdb, vstring) != DATABASE_VERSION) {
  48                 tdb_traverse(tdb, tdb_traverse_delete_fn, NULL);
  49                 tdb_store_int32(tdb, vstring, DATABASE_VERSION);
  50
  51                 account_policy_set(AP_MIN_PASSWORD_LEN, MINPASSWDLENGTH);   /* 5 chars minimum             */
  52                 account_policy_set(AP_PASSWORD_HISTORY, 0);                 /* don't keep any old password */
  53                 account_policy_set(AP_USER_MUST_LOGON_TO_CHG_PASS, 0);      /* don't force user to logon   */
  54                 account_policy_set(AP_MAX_PASSWORD_AGE, MAX_PASSWORD_AGE);  /* 21 days                     */
  55                 account_policy_set(AP_MIN_PASSWORD_AGE, 0);                 /* 0 days                      */
  56                 account_policy_set(AP_LOCK_ACCOUNT_DURATION, 0);            /* lockout for 0 minutes       */
  57                 account_policy_set(AP_RESET_COUNT_TIME, 0);                 /* reset immediatly            */
  58                 account_policy_set(AP_BAD_ATTEMPT_LOCKOUT, 0);              /* don't lockout               */
  59                 account_policy_set(AP_TIME_TO_LOGOUT, -1);                  /* don't force logout          */
  60         }
  61         tdb_unlock_bystring(tdb, vstring);
  62
  63         return True;
  64 }
  65
  66 /****************************************************************************
  67 ****************************************************************************/
  68
  69 static char *decode_account_policy_name(int field)
  70 {
  71         switch (field) {
  72                 case AP_MIN_PASSWORD_LEN:
  73                         return "min password length";
  74                 case AP_PASSWORD_HISTORY:
  75                         return "password history";
  76                 case AP_USER_MUST_LOGON_TO_CHG_PASS:
  77                         return "user must logon to change password";
  78                 case AP_MAX_PASSWORD_AGE:
  79                         return "maximum password age";
  80                 case AP_MIN_PASSWORD_AGE:
  81                         return "minimum password age";
  82                 case AP_LOCK_ACCOUNT_DURATION:
  83                         return "lockout duration";
  84                 case AP_RESET_COUNT_TIME:
  85                         return "reset count minutes";
  86                 case AP_BAD_ATTEMPT_LOCKOUT:
  87                         return "bad lockout attempt";
  88                 case AP_TIME_TO_LOGOUT:
  89                         return "disconnect time";
  90                 default:
  91                         return "undefined value";
  92         }
  93 }
  94
  95
  96 /****************************************************************************
  97 ****************************************************************************/
  98 BOOL account_policy_get(int field, uint32 *value)
  99 {
 100         fstring name;
 101
 102         init_account_policy();
 103
 104         fstrcpy(name, decode_account_policy_name(field));
 105         *value=tdb_fetch_int32(tdb, name);
 106         DEBUG(10,("account_policy_get: %s:%d\n", name, *value));
 107         return True;
 108 }
 109
 110
 111 /****************************************************************************
 112 ****************************************************************************/
 113 BOOL account_policy_set(int field, uint32 value)
 114 {
 115         fstring name;
 116
 117         init_account_policy();
 118
 119         fstrcpy(name, decode_account_policy_name(field));
 120         if ( tdb_store_int32(tdb, name, value)== -1)
 121                 return False;
 122         DEBUG(10,("account_policy_set: %s:%d\n", name, value));
 123
 124         return True;
 125 }
 126