Finally committing my LDAP changes.
[samba.git] / source3 / passdb / ldap.c
index 912aa8e5f9f3bab078b9d593b45df41a5bb606d4..fad67cb79f6348e2615fd2051ff9253ed3ff4e3b 100644 (file)
@@ -1,8 +1,9 @@
 /* 
    Unix SMB/Netbios implementation.
-   Version 1.9.
+   Version 2.0.
    LDAP protocol helper functions for SAMBA
    Copyright (C) Jean François Micouleau 1998
+   Copyright (C) Matthew Chapman 1998
    
    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
    
 */
 
-#ifdef USE_LDAP
-
 #include "includes.h"
 
+#ifdef WITH_LDAP
+
 #include <lber.h>
 #include <ldap.h>
 
-#define ADD_USER 1
-#define MODIFY_USER 2
-
 extern int DEBUGLEVEL;
 
-/*******************************************************************
- open a connection to the ldap serve.
-******************************************************************/    
-static BOOL ldap_open_connection(LDAP **ldap_struct)
-{
-       if ( (*ldap_struct = ldap_open(lp_ldap_server(),lp_ldap_port()) ) == NULL)
-       {
-               DEBUG(0,("%s: The LDAP server is not responding !\n",timestring()));
-               return(False);
-       }
-       DEBUG(2,("ldap_open_connection: connection opened\n"));
-       return (True);
-}
-
+/* Internal state */
+LDAP *ldap_struct;
+LDAPMessage *ldap_results;
+LDAPMessage *ldap_entry;
 
-/*******************************************************************
- connect anonymously to the ldap server.
- FIXME: later (jfm)
-******************************************************************/    
-static BOOL ldap_connect_anonymous(LDAP *ldap_struct)
-{
-       if ( ldap_simple_bind_s(ldap_struct,lp_ldap_root(),lp_ldap_rootpasswd()) ! = LDAP_SUCCESS)
-       {
-               DEBUG(0,("%s: Couldn't bind to the LDAP server !\n", timestring() ));
-               return(False);
-       }
-       return (True);
-}
+/* LDAP password */
+static pstring ldap_secret;
 
 
 /*******************************************************************
- connect to the ldap server under system privileg.
-******************************************************************/    
-static BOOL ldap_connect_system(LDAP *ldap_struct)
-{
-       if ( ldap_simple_bind_s(ldap_struct,lp_ldap_root(),lp_ldap_rootpasswd()) ! = LDAP_SUCCESS)
-       {
-               DEBUG(0,("%s: Couldn't bind to the LDAP server !\n", timestring() ));
-               return(False);
-       }
-       DEBUG(2,("ldap_connect_system: succesful connection to the LDAP server\n"));
-       return (True);
-}
+  Open connections to the LDAP server.
+ ******************************************************************/   
 
-/*******************************************************************
- connect to the ldap server under a particular user.
-******************************************************************/    
-static BOOL ldap_connect_user(LDAP *ldap_struct, char *user, char *password)
+BOOL ldap_connect(void)
 {
-       if ( ldap_simple_bind_s(ldap_struct,lp_ldap_root(),lp_ldap_rootpasswd()) ! = LDAP_SUCCESS)
-       {
-               DEBUG(0,("%s: Couldn't bind to the LDAP server !\n", timestring() ));
-               return(False);
-       }
-       DEBUG(2,("ldap_connect_user: succesful connection to the LDAP server\n"));
-       return (True);
-}
+       int err;
 
-/*******************************************************************
- run the search by name.
-******************************************************************/    
-static BOOL ldap_search_one_user(LDAP *ldap_struct, char *filter, LDAPMessage **result)
-{      
-       int scope = LDAP_SCOPE_ONELEVEL;
-       int rc;
-               
-       DEBUG(2,("ldap_search_one_user: searching for:[%s]\n", filter));
-               
-       rc = ldap_search_s(ldap_struct, lp_ldap_suffix(), scope, filter, NULL, 0, result);
-
-       if (rc ! = LDAP_SUCCESS )
-       {
-               DEBUG(0,("%s: Problem during the LDAP search\n",timestring()));
-               return(False);
+       if (!(ldap_struct = ldap_open(lp_ldap_server(), lp_ldap_port()))) {
+               DEBUG(0, ("open: %s\n", strerror(errno)));
+               return (False);
        }
-       return (True);
-}
 
-/*******************************************************************
- run the search by name.
-******************************************************************/    
-static BOOL ldap_search_one_user_by_name(LDAP *ldap_struct, char *user, LDAPMessage **result)
-{      
-       pstring filter;
-       /*
-          in the filter expression, replace %u with the real name
-          so in ldap filter, %u MUST exist :-)
-       */      
-       pstrcpy(filter,lp_ldap_filter());
-       string_sub(filter,"%u",user);
-       
-       if ( !ldap_search_one_user(ldap_struct, filter, result) )
-       {
-               return(False);
+       err = ldap_simple_bind_s(ldap_struct, lp_ldap_bind_as(), ldap_secret);
+       if (err != LDAP_SUCCESS) {
+               DEBUG(0, ("bind: %s\n", ldap_err2string(err)));
+               return (False);
        }
-       return (True);
-}
 
-/*******************************************************************
- run the search by uid.
-******************************************************************/    
-static BOOL ldap_search_one_user_by_uid(LDAP *ldap_struct, int uid, LDAPMessage **result)
-{      
-       pstring filter;
-       
-       snprintf(filter, sizeof(pstring), "uidAccount = %d", uid);
-       
-       if ( !ldap_search_one_user(ldap_struct, filter, result) )
-       {       
-               return(False);
-       }
+       DEBUG(2,("Connected to LDAP server\n"));
        return (True);
 }
 
 /*******************************************************************
- search an attribute and return the first value found.
-******************************************************************/
-static void get_single_attribute(LDAP *ldap_struct, LDAPMessage *entry, char *attribute, char *value)
-{
-       char **valeurs;
-       
-       if ( (valeurs = ldap_get_values(ldap_struct, entry, attribute)) ! = NULL) 
-       {
-               pstrcpy(value, valeurs[0]);
-               ldap_value_free(valeurs);
-               DEBUG(3,("get_single_attribute: [%s] = [%s]\n", attribute, value));     
-       }
-       else
-       {
-               value = NULL;
-       }
-}
+  close connections to the LDAP server.
+ ******************************************************************/   
 
-/*******************************************************************
- check if the returned entry is a sambaAccount objectclass.
-******************************************************************/    
-static BOOL ldap_check_user(LDAP *ldap_struct, LDAPMessage *entry)
+void ldap_disconnect(void)
 {
-       BOOL sambaAccount = False;
-       char **valeur;
-       int i;
+       if(!ldap_struct)
+               return;
 
-       DEBUG(2,("ldap_check_user: "));
-       valeur = ldap_get_values(ldap_struct, entry, "objectclass");
-       if (valeur! = NULL)
-       {
-               for (i = 0;valeur[i]! = NULL;i++)
-               {
-                       if (!strcmp(valeur[i],"sambaAccount")) sambaAccount = True;
-               }
-       }
-       DEBUG(2,("%s\n",sambaAccount?"yes":"no"));
-       ldap_value_free(valeur);
-       return (sambaAccount);
-}
+       if(ldap_results) {
+               ldap_msgfree(ldap_results);
+               ldap_results = NULL; }
 
-/*******************************************************************
- check if the returned entry is a sambaTrust objectclass.
-******************************************************************/    
-static BOOL ldap_check_trust(LDAP *ldap_struct, LDAPMessage *entry)
-{
-       BOOL sambaTrust = False;
-       char **valeur;
-       int i;
+       ldap_unbind(ldap_struct);
+       ldap_struct = NULL;
        
-       DEBUG(2,("ldap_check_trust: "));
-       valeur = ldap_get_values(ldap_struct, entry, "objectclass");
-       if (valeur! = NULL)
-       {
-               for (i = 0;valeur[i]! = NULL;i++)
-               {
-                       if (!strcmp(valeur[i],"sambaTrust")) sambaTrust = True;
-               }
-       }       
-       DEBUG(2,("%s\n",sambaTrust?"yes":"no"));
-       ldap_value_free(valeur);        
-       return (sambaTrust);
+       DEBUG(2,("Connection closed\n"));
 }
 
+
 /*******************************************************************
- retrieve the user's info and contruct a smb_passwd structure.
-******************************************************************/
-static void ldap_get_smb_passwd(LDAP *ldap_struct,LDAPMessage *entry, 
-                          struct smb_passwd *user)
-{      
-       static pstring user_name;
-       static pstring user_pass;
-       static pstring temp;
-       static unsigned char smblmpwd[16];
-       static unsigned char smbntpwd[16];
+  Search the directory using a given filter.
+ ******************************************************************/   
 
-       pdb_init_smb(user);
+BOOL ldap_search_for(char *filter)
+{
+       int err;
 
-       bzero(smblmpwd, sizeof(smblmpwd));
-       bzero(smbntpwd, sizeof(smbntpwd));
+       DEBUG(2,("Searching in [%s] for [%s]\n", lp_ldap_suffix(), filter));
 
-       get_single_attribute(ldap_struct, entry, "cn", user_name);
-       DEBUG(2,("ldap_get_smb_passwd: user: %s\n",user_name));
-               
-#ifdef LDAP_PLAINTEXT_PASSWORD
-       get_single_attribute(ldap_struct, entry, "userPassword", temp);
-       nt_lm_owf_gen(temp, user->smb_nt_passwd, user->smb_passwd);
-       bzero(temp, sizeof(temp)); /* destroy local copy of the password */
-#else
-       get_single_attribute(ldap_struct, entry, "unicodePwd", temp);
-       pdb_gethexpwd(temp, smbntpwd);          
-       bzero(temp, sizeof(temp)); /* destroy local copy of the password */
+       err = ldap_search_s(ldap_struct, lp_ldap_suffix(), LDAP_SCOPE_ONELEVEL,
+                         filter, NULL, 0, &ldap_results);
 
-       get_single_attribute(ldap_struct, entry, "dBCSPwd", temp);
-       pdb_gethexpwd(temp, smblmpwd);          
-       bzero(temp, sizeof(temp)); /* destroy local copy of the password */
-#endif
-       
-       get_single_attribute(ldap_struct, entry, "userAccountControl", temp);
-       user->acct_ctrl = pdb_decode_acct_ctrl(temp);
+       if(err != LDAP_SUCCESS) {
+               DEBUG(0, ("search: %s\n", ldap_err2string(err)));
+       }
 
-       get_single_attribute(ldap_struct, entry, "pwdLastSet", temp);
-       user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
+       DEBUG(2, ("%d matching entries found\n",
+                 ldap_count_entries(ldap_struct, ldap_results)));
 
-       get_single_attribute(ldap_struct, entry, "rid", temp);
+       ldap_entry = ldap_first_entry(ldap_struct, ldap_results);
+       return (True);
+}
 
-       /* the smb (unix) ids are not stored: they are created */
-       user->smb_userid = pdb_user_rid_to_uid (atoi(temp));
+BOOL ldap_search_by_name(const char *user)
+{
+       fstring filter;
 
-       if (user->acct_ctrl & (ACB_DOMTRUST|ACB_WSTRUST|ACB_SVRTRUST) )
-       {
-               DEBUG(0,("Inconsistency in the LDAP database\n"));
-       }
-       if (user->acct_ctrl & ACB_NORMAL)
-       {
-               user->smb_name      = user_name;
-               user->smb_passwd    = smblmpwd;
-               user->smb_nt_passwd = smbntpwd;
-       }
+       slprintf(filter, sizeof(filter)-1,
+                "(&(uid=%s)(objectclass=sambaAccount))", user);
+       return ldap_search_for(filter);
 }
 
-/*******************************************************************
- retrieve the user's info and contruct a sam_passwd structure.
-
- calls ldap_get_smb_passwd function first, though, to save code duplication.
-
-******************************************************************/
-static void ldap_get_sam_passwd(LDAP *ldap_struct, LDAPMessage *entry, 
-                          struct sam_passwd *user)
-{      
-       static pstring user_name;
-       static pstring fullname;
-       static pstring home_dir;
-       static pstring dir_drive;
-       static pstring logon_script;
-       static pstring profile_path;
-       static pstring acct_desc;
-       static pstring workstations;
-       static pstring temp;
-       static struct smb_passwd pw_buf;
-
-       pdb_init_sam(user);
-
-       ldap_get_smb_passwd(ldap_struct, entry, &pw_buf);
+BOOL ldap_search_by_uid(int uid)
+{
+       fstring filter;
        
-       user->pass_last_set_time    = pw_buf.pass_last_set_time;
-
-       get_single_attribute(ldap_struct, entry, "logonTime", temp);
-       user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
-
-       get_single_attribute(ldap_struct, entry, "logoffTime", temp);
-       user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
-
-       get_single_attribute(ldap_struct, entry, "kickoffTime", temp);
-       user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
-
-       get_single_attribute(ldap_struct, entry, "pwdLastSet", temp);
-       user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
-
-       get_single_attribute(ldap_struct, entry, "pwdCanChange", temp);
-       user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
-
-       get_single_attribute(ldap_struct, entry, "pwdMustChange", temp);
-       user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
-
-       user->smb_name = pw_buf.smb_name;
+       slprintf(filter, sizeof(filter)-1, 
+                "(&(uidNumber=%d)(objectclass=sambaAccount))", uid);
+       return ldap_search_for(filter);
+}
 
-       DEBUG(2,("ldap_get_sam_passwd: user: %s\n", user_name));
-               
-       get_single_attribute(ldap_struct, entry, "userFullName", fullname);
-       user->full_name = fullname;
 
-       get_single_attribute(ldap_struct, entry, "homeDirectory", home_dir);
-       user->home_dir = home_dir;
+/*******************************************************************
+  Get the first value of an attribute.
+ ******************************************************************/
 
-       get_single_attribute(ldap_struct, entry, "homeDrive", dir_drive);
-       user->dir_drive = dir_drive;
+BOOL ldap_get_attribute(char *attribute, char *value)
+{
+       char **values;
+       
+       if(!(values = ldap_get_values(ldap_struct, ldap_entry, attribute)))
+               return (False);
 
-       get_single_attribute(ldap_struct, entry, "scriptPath", logon_script);
-       user->logon_script = logon_script;
+       pstrcpy(value, values[0]);
+       ldap_value_free(values);
+       DEBUG(3, ("get: [%s] = [%s]\n", attribute, value));
+       
+       return (True);
+}
 
-       get_single_attribute(ldap_struct, entry, "profilePath", profile_path);
-       user->profile_path = profile_path;
 
-       get_single_attribute(ldap_struct, entry, "comment", acct_desc);
-       user->acct_desc = acct_desc;
+/*******************************************************************
+  Construct an smb_passwd structure
+ ******************************************************************/
+struct smb_passwd *ldap_getpw(void)
+{
+       static struct smb_passwd smbpw;
+       static pstring unix_name;
+       static pstring nt_name;
+       static unsigned char smblmpwd[16];
+       static unsigned char smbntpwd[16];
+       pstring temp;
 
-       get_single_attribute(ldap_struct, entry, "userWorkstations", workstations);
-       user->workstations = workstations;
+       if(!ldap_entry)
+               return NULL;
 
-       user->unknown_str = NULL; /* don't know, yet! */
-       user->munged_dial = NULL; /* "munged" dial-back telephone number */
+       if(!ldap_get_attribute("uid", unix_name)) {
+               DEBUG(0,("Missing uid\n"));
+               return NULL; }
+       smbpw.unix_name = unix_name;
 
-       get_single_attribute(ldap_struct, entry, "rid", temp);
-       user->user_rid = atoi(temp);
+       DEBUG(2,("Retrieving account [%s]\n",unix_name));
 
-       get_single_attribute(ldap_struct, entry, "primaryGroupID", temp);
-       user->group_rid = atoi(temp);
+       if(!ldap_get_attribute("uidNumber", temp)) {
+               DEBUG(0,("Missing uidNumber\n"));
+               return NULL; }
+       smbpw.unix_uid = atoi(temp);
 
-       /* the smb (unix) ids are not stored: they are created */
-       user->smb_userid = pw_buf.smb_userid;
-       user->smb_grpid = group_rid_to_uid(user->group_rid);
+        if(!ldap_get_attribute("ntuid", nt_name)) {
+               DEBUG(0,("Missing ntuid\n"));
+               return NULL; }
+       smbpw.nt_name = nt_name;
 
-       user->acct_ctrl = pw_buf.acct_ctrl;
+       if(!ldap_get_attribute("rid", temp)) {
+               DEBUG(0,("Missing rid\n"));
+               return NULL; }
+       smbpw.user_rid = strtol(temp, NULL, 16);
 
-       user->unknown_3 = 0xffffff; /* don't know */
-       user->logon_divs = 168; /* hours per week */
-       user->hours_len = 21; /* 21 times 8 bits = 168 */
-       memset(user->hours, 0xff, user->hours_len); /* available at all hours */
-       user->unknown_5 = 0x00020000; /* don't know */
-       user->unknown_5 = 0x000004ec; /* don't know */
+       if(ldap_get_attribute("acctFlags", temp))
+               smbpw.acct_ctrl = pwdb_decode_acct_ctrl(temp);
+       else
+               smbpw.acct_ctrl = ACB_NORMAL;
 
-       if (user->acct_ctrl & (ACB_DOMTRUST|ACB_WSTRUST|ACB_SVRTRUST) )
-       {
-               DEBUG(0,("Inconsistency in the LDAP database\n"));
+       if(ldap_get_attribute("lmPassword", temp)) {
+               pwdb_gethexpwd(temp, smblmpwd);
+               smbpw.smb_passwd = smblmpwd;
+       } else {
+               smbpw.smb_passwd = NULL;
+               smbpw.acct_ctrl |= ACB_DISABLED;
        }
 
-       if (!(user->acct_ctrl & ACB_NORMAL))
-       {
-               DEBUG(0,("User's acct_ctrl bits not set to ACT_NORMAL in LDAP database\n"));
-               return;
+       if(ldap_get_attribute("ntPassword", temp)) {
+               pwdb_gethexpwd(temp, smbntpwd);
+               smbpw.smb_nt_passwd = smbntpwd;
+       } else {
+               smbpw.smb_nt_passwd = NULL;
        }
+
+       if(ldap_get_attribute("pwdLastSet", temp))
+               smbpw.pass_last_set_time = (time_t)strtol(temp, NULL, 16);
+       else
+               smbpw.pass_last_set_time = (time_t)(-1);
+
+       return &smbpw;
 }
 
+
 /************************************************************************
- Routine to manage the LDAPMod structure array
- manage memory used by the array, by each struct, and values
+  Adds a modification to a LDAPMod queue.
+ ************************************************************************/
 
-************************************************************************/
-static void make_a_mod(LDAPMod ***modlist,int modop, char *attribute, char *value)
+ void ldap_make_mod(LDAPMod ***modlist,int modop, char *attribute, char *value)
 {
        LDAPMod **mods;
        int i;
        int j;
+
+       DEBUG(3, ("set: [%s] = [%s]\n", attribute, value));
        
        mods = *modlist;
        
-       if (mods == NULL)
-       {
-               mods = (LDAPMod **)malloc( sizeof(LDAPMod *) );
+       if (mods == NULL) {
+               mods = (LDAPMod **)malloc(sizeof(LDAPMod *));
                mods[0] = NULL;
        }
        
-       for ( i = 0; mods[ i ] ! = NULL; ++i )
-       {
-               if ( mods[ i ]->mod_op == modop && 
-                   !strcasecmp( mods[ i ]->mod_type, attribute ) )
-               {
+       for (i = 0; mods[i] != NULL; ++i) {
+               if (mods[i]->mod_op == modop && 
+                   !strcasecmp(mods[i]->mod_type, attribute)) {
                        break;
                }
        }
        
-       if (mods[i] == NULL)
-       {
-               mods = (LDAPMod **)realloc( mods,  (i+2) * sizeof( LDAPMod * ) );       
-               mods[i] = (LDAPMod *)malloc( sizeof( LDAPMod ) );
+       if (mods[i] == NULL) {
+               mods = (LDAPMod **)realloc(mods, (i+2) * sizeof(LDAPMod *));
+               mods[i] = (LDAPMod *)malloc(sizeof(LDAPMod));
                mods[i]->mod_op = modop;
                mods[i]->mod_values = NULL;
-               mods[i]->mod_type = strdup( attribute );
+               mods[i]->mod_type = strdup(attribute);
                mods[i+1] = NULL;
        }
 
-       if (value ! = NULL )
-       {
+       if (value) {
                j = 0;
-               if ( mods[ i ]->mod_values ! = NULL )
-               {
-                       for ( ; mods[ i ]->mod_values[ j ] ! = NULL; j++ );
+               if (mods[i]->mod_values) {
+                       for (; mods[i]->mod_values[j]; j++);
                }
-               mods[ i ]->mod_values = (char **)realloc(mods[ i ]->mod_values,
-                                                         (j+2) * sizeof( char * ));
-               mods[ i ]->mod_values[ j ] = strdup(value);     
-               mods[ i ]->mod_values[ j + 1 ] = NULL;          
+               mods[i]->mod_values = (char **)realloc(mods[i]->mod_values,
+                                                 (j+2) * sizeof(char *));
+               mods[i]->mod_values[j] = strdup(value);
+               mods[i]->mod_values[j+1] = NULL;
        }
+
        *modlist = mods;
 }
 
+
 /************************************************************************
- Add or modify an entry. Only the smb struct values
+  Queues the necessary modifications to save a smb_passwd structure
+ ************************************************************************/
 
-*************************************************************************/
-static BOOL modadd_ldappwd_entry(struct smb_passwd *newpwd, int flag)
+ void ldap_smbpwmods(struct smb_passwd *newpwd, LDAPMod ***mods, int operation)
 {
-       
-       /* assume the struct is correct and filled
-          that's the job of passdb.c to check */
-       int scope = LDAP_SCOPE_ONELEVEL;
-       int rc;
-       char *smb_name;
-       int trust = False;
-       int ldap_state;
-       pstring filter;
-       pstring dn;
-       pstring lmhash;
-       pstring nthash;
-       pstring rid;
-       pstring lst;
-       pstring temp;
+       fstring temp;
+       int i;
 
-       LDAP *ldap_struct;
-       LDAPMessage *result;
-       LDAPMod **mods;
-       
-       smb_name = newpwd->smb_name;
+       *mods = NULL;
+       if(operation == LDAP_MOD_ADD) { /* immutable attributes */
+             ldap_make_mod(mods, LDAP_MOD_ADD, "objectclass", "sambaAccount");
 
-       if (!ldap_open_connection(&ldap_struct)) /* open a connection to the server */
-       {
-               return False;
+             ldap_make_mod(mods, LDAP_MOD_ADD, "uid", newpwd->unix_name);
+             slprintf(temp, sizeof(temp)-1, "%d", newpwd->unix_uid);
+             ldap_make_mod(mods, LDAP_MOD_ADD, "uidNumber", temp);
+
+             ldap_make_mod(mods, LDAP_MOD_ADD, "ntuid", newpwd->nt_name);
+             slprintf(temp, sizeof(temp)-1, "%x", newpwd->user_rid);
+             ldap_make_mod(mods, LDAP_MOD_ADD, "rid", temp);
        }
 
-       if (!ldap_connect_system(ldap_struct)) /* connect as system account */
-       {
-               ldap_unbind(ldap_struct);
-               return False;
+       if (newpwd->smb_passwd) {
+             for( i = 0; i < 16; i++) {
+                    slprintf(&temp[2*i], 3, "%02X", newpwd->smb_passwd[i]);
+             }
+             ldap_make_mod(mods, operation, "lmPassword", temp);
        }
-       
-       if (smb_name[strlen(smb_name)-1] == '$' )
-       {
-               smb_name[strlen(smb_name)-1] = '\0';
-               trust = True;
+
+       if (newpwd->smb_nt_passwd) {
+             for( i = 0; i < 16; i++) {
+                    slprintf(&temp[2*i], 3, "%02X", newpwd->smb_nt_passwd[i]);
+             }
+             ldap_make_mod(mods, operation, "ntPassword", temp);
        }
 
-       slprintf(filter, sizeof(filter)-1,
-                "(&(cn = %s)(|(objectclass = sambaTrust)(objectclass = sambaAccount)))",
-                smb_name);
-       
-       rc = ldap_search_s(ldap_struct, lp_ldap_suffix(), scope, filter, NULL, 0, &result);
+       newpwd->pass_last_set_time = time(NULL);
+       slprintf(temp, sizeof(temp)-1, "%08X", newpwd->pass_last_set_time);
+       ldap_make_mod(mods, operation, "pwdLastSet", temp);
 
-       switch (flag)
-       {
-               case ADD_USER:
-               {
-                       if (ldap_count_entries(ldap_struct, result) ! = 0)
-                       {
-                               DEBUG(0,("User already in the base, with samba properties\n"));         
-                               ldap_unbind(ldap_struct);
-                               return False;
-                       }
-                       ldap_state = LDAP_MOD_ADD;
-                       break;
-               }
-               case MODIFY_USER:
-               {
-                       if (ldap_count_entries(ldap_struct, result) ! = 1)
-                       {
-                               DEBUG(0,("No user to modify !\n"));             
-                               ldap_unbind(ldap_struct);
-                               return False;
-                       }
-                       ldap_state = LDAP_MOD_REPLACE;
-                       break;
-               }
-               default:
-               {
-                       DEBUG(0,("How did you come here? \n"));         
-                       ldap_unbind(ldap_struct);
-                       return False;
-                       break;
-               }
-       }
-       slprintf(dn, sizeof(dn)-1, "cn = %s, %s",smb_name, lp_ldap_suffix() );
+       ldap_make_mod(mods, operation, "acctFlags",
+                           pwdb_encode_acct_ctrl(newpwd->acct_ctrl,
+                                  NEW_PW_FORMAT_SPACE_PADDED_LEN));
+}
 
-       if (newpwd->smb_passwd ! = NULL)
-       {
-               int i;
-               for( i = 0; i < 16; i++)
-               {
-                       slprintf(&temp[2*i], sizeof(temp) - 1, "%02X", newpwd->smb_passwd[i]);
-               }
-       
-       }
-       else
-       {
-               if (newpwd->acct_ctrl & ACB_PWNOTREQ)
-               {
-                       slprintf(temp, sizeof(temp) - 1, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX");
-               }
-               else
-               {
-                       slprintf(temp, sizeof(temp) - 1, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
-               }
-       }
-       slprintf(lmhash, sizeof(lmhash)-1, "%s", temp);
 
-       if (newpwd->smb_nt_passwd ! = NULL)
-       {
-               int i;
-               for( i = 0; i < 16; i++)
-               {
-                       slprintf(&temp[2*i], sizeof(temp) - 1, "%02X", newpwd->smb_nt_passwd[i]);
-               }
-       
-       }
-       else
-       {
-               if (newpwd->acct_ctrl & ACB_PWNOTREQ)
-               {
-                       slprintf(temp, sizeof(temp) - 1, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX");
-               }
-               else
-               {
-                       slprintf(temp, sizeof(temp) - 1, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
-               }
-       }
-       slprintf(nthash, sizeof(nthash)-1, "%s", temp);
+/************************************************************************
+  Commit changes to a directory entry.
+ *************************************************************************/
+ BOOL ldap_makemods(char *attribute, char *value, LDAPMod **mods, BOOL add)
+{
+       pstring filter;
+       char *dn;
+       int entries;
+       int err = 0;
+       BOOL rc;
 
-       slprintf(rid, sizeof(rid)-1, "%d", uid_to_user_rid(newpwd->smb_userid) );
-       slprintf(lst, sizeof(lst)-1, "%08X", newpwd->pass_last_set_time);
-       
-       mods = NULL; 
+       slprintf(filter, sizeof(filter)-1, "%s=%s", attribute, value);
+
+       if (!ldap_connect())
+               return (False);
+
+       ldap_search_for(filter);
 
-       if (trust)
+       if (ldap_entry)
        {
-               make_a_mod(&mods, ldap_state, "objectclass", "sambaTrust");
-               make_a_mod(&mods, ldap_state, "netbiosTrustName", smb_name);
-               make_a_mod(&mods, ldap_state, "trustPassword", nthash);
+               dn = ldap_get_dn(ldap_struct, ldap_entry);
+               err = ldap_modify_s(ldap_struct, dn, mods);
+               free(dn);
        }
-       else
+       else if (add)
        {
-               make_a_mod(&mods, ldap_state, "objectclass", "sambaAccount");
-               make_a_mod(&mods, ldap_state, "dBCSPwd", lmhash);
-               make_a_mod(&mods, ldap_state, "uid", smb_name);
-               make_a_mod(&mods, ldap_state, "unicodePwd", nthash);
+               pstrcat(filter, ", ");
+               pstrcat(filter, lp_ldap_suffix());
+               err = ldap_add_s(ldap_struct, filter, mods);
        }
-       
-       make_a_mod(&mods, ldap_state, "cn", smb_name);
-       
-       make_a_mod(&mods, ldap_state, "rid", rid);
-       make_a_mod(&mods, ldap_state, "pwdLastSet", lst);
-       make_a_mod(&mods, ldap_state, "userAccountControl", pdb_encode_acct_ctrl(newpwd->acct_ctrl));
-       
-       switch(flag)
+
+       if (err == LDAP_SUCCESS)
        {
-               case ADD_USER:
-               {
-                       ldap_add_s(ldap_struct, dn, mods);
-                       DEBUG(2,("modadd_ldappwd_entry: added: cn = %s in the LDAP database\n",smb_name));
-                       break;
-               }
-               case MODIFY_USER:
-               {
-                       ldap_modify_s(ldap_struct, dn, mods);
-                       DEBUG(2,("modadd_ldappwd_entry: changed: cn = %s in the LDAP database_n",smb_name));
-                       break;
-               }
-               default:
-               {
-                       DEBUG(2,("modadd_ldappwd_entry: How did you come here? \n"));           
-                       ldap_unbind(ldap_struct);
-                       return False;
-                       break;
-               }
+               DEBUG(2,("Updated entry [%s]\n", value));
+               rc = True;
+       } else {
+               DEBUG(0,("update: %s\n", ldap_err2string(err)));
+               rc = False;
        }
-       
+
+       ldap_disconnect();
        ldap_mods_free(mods, 1);
-       
-       ldap_unbind(ldap_struct);
-       
-       return True;
+       return rc;
 }
 
+
 /************************************************************************
- Add or modify an entry. everything except the smb struct
+  Return next available RID, starting from 1000
+ ************************************************************************/
 
-*************************************************************************/
-static BOOL modadd_ldap21pwd_entry(struct sam_passwd *newpwd, int flag)
+BOOL ldap_allocaterid(uint32 *rid)
 {
-       
-       /* assume the struct is correct and filled
-          that's the job of passdb.c to check */
-       int scope = LDAP_SCOPE_ONELEVEL;
-       int rc;
-       char *smb_name;
-       int trust = False;
-       int ldap_state;
-       pstring filter;
-       pstring dn;
-       pstring lmhash;
-       pstring nthash;
-       pstring rid;
-       pstring lst;
-       pstring temp;
-
-       LDAP *ldap_struct;
-       LDAPMessage *result;
+       pstring newdn;
+       fstring rid_str;
        LDAPMod **mods;
-       
-       smb_name = newpwd->smb_name;
+       char *dn;
+       int err;
 
-       if (!ldap_open_connection(&ldap_struct)) /* open a connection to the server */
-       {
-               return False;
-       }
-
-       if (!ldap_connect_system(ldap_struct)) /* connect as system account */
-       {
-               ldap_unbind(ldap_struct);
-               return False;
-       }
-       
-       if (smb_name[strlen(smb_name)-1] == '$' )
-       {
-               smb_name[strlen(smb_name)-1] = '\0';
-               trust = True;
-       }
+       DEBUG(2, ("Allocating new RID\n"));
 
-       slprintf(filter, sizeof(filter)-1,
-                "(&(cn = %s)(|(objectclass = sambaTrust)(objectclass = sambaAccount)))",
-                smb_name);
-       
-       rc = ldap_search_s(ldap_struct, lp_ldap_suffix(), scope, filter, NULL, 0, &result);
+       if (!ldap_connect())
+               return (False);
 
-       switch (flag)
-       {
-               case ADD_USER:
-               {
-                       if (ldap_count_entries(ldap_struct, result) ! = 1)
-                       {
-                               DEBUG(2,("User already in the base, with samba properties\n"));         
-                               ldap_unbind(ldap_struct);
-                               return False;
-                       }
-                       ldap_state = LDAP_MOD_ADD;
-                       break;
-               }
+       ldap_search_for("(&(id=root)(objectClass=sambaConfig))");
 
-               case MODIFY_USER:
-               {
-                       if (ldap_count_entries(ldap_struct, result) ! = 1)
-                       {
-                               DEBUG(2,("No user to modify !\n"));             
-                               ldap_unbind(ldap_struct);
-                               return False;
-                       }
-                       ldap_state = LDAP_MOD_REPLACE;
-                       break;
-               }
-
-               default:
-               {
-                       DEBUG(2,("How did you come here? \n"));         
-                       ldap_unbind(ldap_struct);
-                       return False;
-                       break;
-               }
-       }
-       slprintf(dn, sizeof(dn)-1, "cn = %s, %s",smb_name, lp_ldap_suffix() );
-       
-       mods = NULL; 
+       if (ldap_entry && ldap_get_attribute("nextrid", rid_str))
+               *rid = strtol(rid_str, NULL, 16);
+       else
+               *rid = 1000;
 
-       if (trust)
+       mods = NULL;
+       if(!ldap_entry)
        {
+               ldap_make_mod(&mods, LDAP_MOD_ADD, "objectClass",
+                             "sambaConfig");
+               ldap_make_mod(&mods, LDAP_MOD_ADD, "id", "root");
        }
-       else
+
+       slprintf(rid_str, sizeof(fstring)-1, "%x", (*rid) + 1);
+       ldap_make_mod(&mods, LDAP_MOD_REPLACE, "nextrid", rid_str);
+
+       if (ldap_entry)
        {
+                dn = ldap_get_dn(ldap_struct, ldap_entry);
+                err = ldap_modify_s(ldap_struct, dn, mods);
+                free(dn);
+       } else {
+               pstrcpy(newdn, "id=root, ");
+               pstrcat(newdn, lp_ldap_suffix());
+               ldap_add_s(ldap_struct, newdn, mods);
        }
-       
-       make_a_mod(&mods, ldap_state, "cn", smb_name);
-       
-       make_a_mod(&mods, ldap_state, "rid", rid);
-       make_a_mod(&mods, ldap_state, "pwdLastSet", lst);
-       make_a_mod(&mods, ldap_state, "userAccountControl", pdb_encode_acct_ctrl(newpwd->acct_ctrl));
-       
-       ldap_modify_s(ldap_struct, dn, mods);
-       
-       ldap_mods_free(mods, 1);
-       
-       ldap_unbind(ldap_struct);
-       
-       return True;
-}
 
-/************************************************************************
- Routine to add an entry to the ldap passwd file.
+       ldap_disconnect();
 
- do not call this function directly.  use passdb.c instead.
+       if(err != LDAP_SUCCESS)
+       {
+               DEBUG(0,("nextrid update: %s\n", ldap_err2string(err)));
+               return (False);
+       }
 
-*************************************************************************/
-BOOL add_ldappwd_entry(struct smb_passwd *newpwd)
-{
-       return (modadd_ldappwd_entry(newpwd, ADD_USER) );
+       return (True);
 }
 
-/************************************************************************
- Routine to search the ldap passwd file for an entry matching the username.
- and then modify its password entry. We can't use the startldappwent()/
- getldappwent()/endldappwent() interfaces here as we depend on looking
- in the actual file to decide how much room we have to write data.
- override = False, normal
- override = True, override XXXXXXXX'd out password or NO PASS
 
- do not call this function directly.  use passdb.c instead.
+/***************************************************************
+  Begin/end account enumeration.
+ ****************************************************************/
 
-************************************************************************/
-BOOL mod_ldappwd_entry(struct smb_passwd *pwd, BOOL override)
+static void *ldap_enumfirst(BOOL update)
 {
-       return (modadd_ldappwd_entry(pwd, MODIFY_USER) );
-}
+       if (!ldap_connect())
+               return NULL;
 
-/************************************************************************
- Routine to add an entry to the ldap passwd file.
+       ldap_search_for("objectclass=sambaAccount");
 
- do not call this function directly.  use passdb.c instead.
+       return ldap_struct;
+}
 
-*************************************************************************/
-BOOL add_ldap21pwd_entry(struct sam_passwd *newpwd)
-{      
-       return( modadd_ldappwd_entry(newpwd, ADD_USER)?
-       modadd_ldap21pwd_entry(newpwd, ADD_USER):False);
+static void ldap_enumclose(void *vp)
+{
+       ldap_disconnect();
 }
 
-/************************************************************************
- Routine to search the ldap passwd file for an entry matching the username.
- and then modify its password entry. We can't use the startldappwent()/
- getldappwent()/endldappwent() interfaces here as we depend on looking
- in the actual file to decide how much room we have to write data.
- override = False, normal
- override = True, override XXXXXXXX'd out password or NO PASS
 
- do not call this function directly.  use passdb.c instead.
+/*************************************************************************
+  Save/restore the current position in a query
+ *************************************************************************/
 
-************************************************************************/
-BOOL mod_ldap21pwd_entry(struct sam_passwd *pwd, BOOL override)
+static SMB_BIG_UINT ldap_getdbpos(void *vp)
 {
-       return( modadd_ldappwd_entry(pwd, MODIFY_USER)?
-       modadd_ldap21pwd_entry(pwd, MODIFY_USER):False);
+       return (SMB_BIG_UINT)((ulong)ldap_entry);
 }
 
-struct ldap_enum_info
+static BOOL ldap_setdbpos(void *vp, SMB_BIG_UINT tok)
 {
-       LDAP *ldap_struct;
-       LDAPMessage *result;
-       LDAPMessage *entry;
-};
-
-static struct ldap_enum_info ldap_ent;
+       ldap_entry = (LDAPMessage *)((ulong)tok);
+       return (True);
+}
 
-/***************************************************************
- Start to enumerate the ldap passwd list. Returns a void pointer
- to ensure no modification outside this module.
 
- do not call this function directly.  use passdb.c instead.
+/*************************************************************************
+  Return smb_passwd information.
+ *************************************************************************/
 
- ****************************************************************/
-void *startldappwent(BOOL update)
+static struct smb_passwd *ldap_getpwbynam(const char *name)
 {
-       int scope = LDAP_SCOPE_ONELEVEL;
-       int rc;
-
-       pstring filter;
+       struct smb_passwd *ret;
 
-       if (!ldap_open_connection(&ldap_ent.ldap_struct)) /* open a connection to the server */
-       {
+       if(!ldap_connect())
                return NULL;
-       }
 
-       if (!ldap_connect_system(ldap_ent.ldap_struct)) /* connect as system account */
-       {
-               return NULL;
-       }
+       ldap_search_by_name(name);
+       ret = ldap_getpw();
 
-       /* when the class is known the search is much faster */
-       switch (0)
-       {
-               case 1:
-               {
-                       pstrcpy(filter, "objectclass = sambaAccount");
-                       break;
-               }
-               case 2:
-               {
-                       pstrcpy(filter, "objectclass = sambaTrust");
-                       break;
-               }
-               default:
-               {
-                       pstrcpy(filter, "(|(objectclass = sambaTrust)(objectclass = sambaAccount))");
-                       break;
-               }
-       }
+       ldap_disconnect();
+       return ret;
+}
 
-       rc = ldap_search_s(ldap_ent.ldap_struct, lp_ldap_suffix(), scope, filter, NULL, 0, &ldap_ent.result);
+static struct smb_passwd *ldap_getpwbyuid(uid_t userid)
+{
+       struct smb_passwd *ret;
 
-       DEBUG(2,("%d entries in the base!\n", ldap_count_entries(ldap_ent.ldap_struct, ldap_ent.result) ));
+       if(!ldap_connect())
+               return NULL;
 
-       ldap_ent.entry = ldap_first_entry(ldap_ent.ldap_struct, ldap_ent.result);
+       ldap_search_by_uid(userid);
+       ret = ldap_getpw();
 
-       return &ldap_ent;
+       ldap_disconnect();
+       return ret;
 }
 
-/*************************************************************************
- Routine to return the next entry in the ldap passwd list.
-
- do not call this function directly.  use passdb.c instead.
-
- *************************************************************************/
-struct smb_passwd *getldappwent(void *vp)
+static struct smb_passwd *ldap_getcurrentpw(void *vp)
 {
-       static struct smb_passwd user;
-       struct ldap_enum_info *ldap_vp = (struct ldap_enum_info *)vp;
+       struct smb_passwd *ret;
 
-       ldap_vp->entry = ldap_next_entry(ldap_vp->ldap_struct, ldap_vp->entry);
-
-       if (ldap_vp->entry ! = NULL)
-       {
-               ldap_get_smb_passwd(ldap_vp->ldap_struct, ldap_vp->entry, &user);
-               return &user;
-       }
-       return NULL;
+       ret = ldap_getpw();
+       ldap_entry = ldap_next_entry(ldap_struct, ldap_entry);
+       return ret;
 }
 
-/*************************************************************************
- Routine to return the next entry in the ldap passwd list.
-
- do not call this function directly.  use passdb.c instead.
 
+/************************************************************************
+  Modify user information given an smb_passwd struct.
  *************************************************************************/
-struct sam_passwd *getldap21pwent(void *vp)
+static BOOL ldap_addpw(struct smb_passwd *newpwd)
 {
-       static struct sam_passwd user;
-       struct ldap_enum_info *ldap_vp = (struct ldap_enum_info *)vp;
+       LDAPMod **mods;
 
-       ldap_vp->entry = ldap_next_entry(ldap_vp->ldap_struct, ldap_vp->entry);
+       if (!newpwd || !ldap_allocaterid(&newpwd->user_rid))
+               return (False);
 
-       if (ldap_vp->entry ! = NULL)
-       {
-               ldap_get_sam_passwd(ldap_vp->ldap_struct, ldap_vp->entry, &user);
-               return &user;
-       }
-       return NULL;
+       ldap_smbpwmods(newpwd, &mods, LDAP_MOD_ADD);
+       return ldap_makemods("uid", newpwd->unix_name, mods, True);
 }
 
-/***************************************************************
- End enumeration of the ldap passwd list.
-
- do not call this function directly.  use passdb.c instead.
-
-****************************************************************/
-void endldappwent(void *vp)
+static BOOL ldap_modpw(struct smb_passwd *pwd, BOOL override)
 {
-       struct ldap_enum_info *ldap_vp = (struct ldap_enum_info *)vp;
-       ldap_msgfree(ldap_vp->result);
-       ldap_unbind(ldap_vp->ldap_struct);
-}
-
-/*************************************************************************
- Return the current position in the ldap passwd list as an unsigned long.
- This must be treated as an opaque token.
+       LDAPMod **mods;
 
- do not call this function directly.  use passdb.c instead.
+       if (!pwd)
+               return (False);
 
-*************************************************************************/
-unsigned long getldappwpos(void *vp)
-{
-       return 0;
+       ldap_smbpwmods(pwd, &mods, LDAP_MOD_REPLACE);
+       return ldap_makemods("uid", pwd->unix_name, mods, False);
 }
 
-/*************************************************************************
- Set the current position in the ldap passwd list from unsigned long.
- This must be treated as an opaque token.
 
- do not call this function directly.  use passdb.c instead.
+static struct smb_passdb_ops ldap_ops =
+{
+       ldap_enumfirst,
+       ldap_enumclose,
+       ldap_getdbpos,
+       ldap_setdbpos,
+
+       ldap_getpwbynam,
+       ldap_getpwbyuid,
+       ldap_getcurrentpw,
+       ldap_addpw,
+       ldap_modpw
+};
 
-*************************************************************************/
-BOOL setldappwpos(void *vp, unsigned long tok)
+struct smb_passdb_ops *ldap_initialise_password_db(void)
 {
-       return False;
+       FILE *pwdfile;
+       char *pwdfilename;
+       char *p;
+
+       pwdfilename = lp_ldap_passwd_file();
+
+       if(pwdfilename[0]) {
+               if(pwdfile = sys_fopen(pwdfilename, "r")) {
+                       fgets(ldap_secret, sizeof(ldap_secret), pwdfile);
+                       if(p = strchr(ldap_secret, '\n'))
+                               *p = 0;
+                       fclose(pwdfile);
+               } else {
+                       DEBUG(0,("Failed to open LDAP passwd file\n"));
+               }
+       }
+
+       return &ldap_ops;
 }
 
 #else
- void dummy_function(void) { } /* stop some compilers complaining */
+ void ldap_dummy_function(void);
+ void ldap_dummy_function(void) { } /* stop some compilers complaining */
 #endif