r13460: by popular demand....

* remove pdb_context data structure
* set default group for DOMAIN_RID_GUEST user as RID 513 (just
  like Windows)
* Allow RID 513 to resolve to always resolve to a name
* Remove auto mapping of guest account primary group given the
  previous 2 changes
(This used to be commit 7a2da5f0cc05c1920c664c9a690a23bdf854e285)

14 files changed, 344 insertions, 1508 deletions

diff --git a/source3/auth/auth_util.c b/source3/auth/auth_util.c
index 27dab9b9aa..1567b6e40b 100644
--- a/source3/auth/auth_util.c
+++ b/source3/auth/auth_util.c
@@ -558,15 +558,13 @@ NTSTATUS make_server_info_sam(auth_serversupplied_info **server_info,
 	gid_t *gids;
 	auth_serversupplied_info *result;
 
-	pwd = getpwnam_alloc(NULL, pdb_get_username(sampass));
-	if ( pwd == NULL )  {
+	if ( !(pwd = getpwnam_alloc(NULL, pdb_get_username(sampass))) ) {
 		DEBUG(1, ("User %s in passdb, but getpwnam() fails!\n",
 			  pdb_get_username(sampass)));
 		return NT_STATUS_NO_SUCH_USER;
 	}
 
-	result = make_server_info(NULL);
-	if (result == NULL) {
+	if ( !(result = make_server_info(NULL)) ) {
 		talloc_free(pwd);
 		return NT_STATUS_NO_MEMORY;
 	}
@@ -1136,7 +1134,8 @@ NTSTATUS make_server_info_pw(auth_serversupplied_info **server_info,
  Make (and fill) a user_info struct for a guest login.
  This *must* succeed for smbd to start. If there is no mapping entry for
  the guest gid, then create one.
-***************************************************************************/
+**********************
+*****************************************************/
 
 static NTSTATUS make_new_server_info_guest(auth_serversupplied_info **server_info)
 {
@@ -1165,48 +1164,9 @@ static NTSTATUS make_new_server_info_guest(auth_serversupplied_info **server_inf
 	}
 
 	status = make_server_info_sam(server_info, sampass);
-
 	if (!NT_STATUS_IS_OK(status)) {
-
-		/* If there was no initial group mapping for the nobody user,
-		   create one*/
-
-		if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
-			GROUP_MAP map;
-			struct passwd *pwd = getpwnam_alloc(NULL, pdb_get_username(sampass));
-
-			if ( pwd == NULL )  {
-				DEBUG(1, ("No guest user %s!\n",
-					  pdb_get_username(sampass)));
-				pdb_free_sam(&sampass);
-				return NT_STATUS_NO_SUCH_USER;
-			}
-
-			map.gid = pwd->pw_gid;
-			sid_copy(&map.sid, get_global_sam_sid());
-			sid_append_rid(&map.sid, DOMAIN_GROUP_RID_GUESTS);
-			map.sid_name_use = SID_NAME_DOM_GRP;
-			fstrcpy(map.nt_name, "Domain Guests");
-			map.comment[0] = '\0';
-
-			if ( !NT_STATUS_IS_OK(pdb_update_group_mapping_entry(&map)) ) {
-				DEBUG(1, ("Could not update group database for guest user %s\n",
-					pdb_get_username(sampass) ));
-				talloc_free(pwd);
-				pdb_free_sam(&sampass);
-				return NT_STATUS_NO_SUCH_USER;
-			}
-
-			talloc_free(pwd);
-
-			/* And try again. */
-			status = make_server_info_sam(server_info, sampass);
-		}
-
-		if (!NT_STATUS_IS_OK(status)) {
-			pdb_free_sam(&sampass);
-			return status;
-		}
+		pdb_free_sam(&sampass);
+		return status;
 	}
 	
 	(*server_info)->guest = True;
@@ -1264,6 +1224,8 @@ BOOL init_guest_info(void)
 {
 	if (guest_info != NULL)
 		return True;
+		
+	
 
 	return NT_STATUS_IS_OK(make_new_server_info_guest(&guest_info));
 }
diff --git a/source3/include/passdb.h b/source3/include/passdb.h
index 0035fc5b05..35f377ad86 100644
--- a/source3/include/passdb.h
+++ b/source3/include/passdb.h
@@ -249,158 +249,9 @@ struct pdb_search {
 
 #define PASSDB_INTERFACE_VERSION 12
 
-typedef struct pdb_context 
-{
-	struct pdb_methods *pdb_methods;
-	struct pdb_methods *pwent_methods;
-	
-	/* These functions are wrappers for the functions listed above.
-	   They may do extra things like re-reading a SAM_ACCOUNT on update */
-
-	NTSTATUS (*pdb_setsampwent)(struct pdb_context *, BOOL update, uint16 acb_mask);
-	
-	void (*pdb_endsampwent)(struct pdb_context *);
-	
-	NTSTATUS (*pdb_getsampwent)(struct pdb_context *, SAM_ACCOUNT *user);
-	
-	NTSTATUS (*pdb_getsampwnam)(struct pdb_context *, SAM_ACCOUNT *sam_acct, const char *username);
-	
-	NTSTATUS (*pdb_getsampwsid)(struct pdb_context *, SAM_ACCOUNT *sam_acct, const DOM_SID *sid);
-
-	NTSTATUS (*pdb_add_sam_account)(struct pdb_context *, SAM_ACCOUNT *sampass);
-	
-	NTSTATUS (*pdb_update_sam_account)(struct pdb_context *, SAM_ACCOUNT *sampass);
-	
-	NTSTATUS (*pdb_delete_sam_account)(struct pdb_context *, SAM_ACCOUNT *username);
-	
-	NTSTATUS (*pdb_rename_sam_account)(struct pdb_context *, SAM_ACCOUNT *oldname, const char *newname);
-
-	NTSTATUS (*pdb_update_login_attempts)(struct pdb_context *context, SAM_ACCOUNT *sam_acct, BOOL success);
-
-	NTSTATUS (*pdb_getgrsid)(struct pdb_context *context, GROUP_MAP *map, DOM_SID sid);
-	
-	NTSTATUS (*pdb_getgrgid)(struct pdb_context *context, GROUP_MAP *map, gid_t gid);
-	
-	NTSTATUS (*pdb_getgrnam)(struct pdb_context *context, GROUP_MAP *map, const char *name);
-	
-	NTSTATUS (*pdb_add_group_mapping_entry)(struct pdb_context *context,
-						GROUP_MAP *map);
-	
-	NTSTATUS (*pdb_update_group_mapping_entry)(struct pdb_context *context,
-						   GROUP_MAP *map);
-	
-	NTSTATUS (*pdb_delete_group_mapping_entry)(struct pdb_context *context,
-						   DOM_SID sid);
-	
-	NTSTATUS (*pdb_enum_group_mapping)(struct pdb_context *context,
-					   enum SID_NAME_USE sid_name_use,
-					   GROUP_MAP **pp_rmap, size_t *p_num_entries,
-					   BOOL unix_only);
-
-	NTSTATUS (*pdb_enum_group_members)(struct pdb_context *context,
-					   TALLOC_CTX *mem_ctx,
-					   const DOM_SID *group,
-					   uint32 **pp_member_rids,
-					   size_t *p_num_members);
-
-	NTSTATUS (*pdb_enum_group_memberships)(struct pdb_context *context,
-					       TALLOC_CTX *mem_ctx,
-					       SAM_ACCOUNT *user,
-					       DOM_SID **pp_sids,
-					       gid_t **pp_gids,
-					       size_t *p_num_groups);
-
-	NTSTATUS (*pdb_find_alias)(struct pdb_context *context,
-				   const char *name, DOM_SID *sid);
-
-	NTSTATUS (*pdb_create_alias)(struct pdb_context *context,
-				     const char *name, uint32 *rid);
-
-	NTSTATUS (*pdb_delete_alias)(struct pdb_context *context,
-				     const DOM_SID *sid);
-
-	NTSTATUS (*pdb_get_aliasinfo)(struct pdb_context *context,
-				      const DOM_SID *sid,
-				      struct acct_info *info);
-
-	NTSTATUS (*pdb_set_aliasinfo)(struct pdb_context *context,
-				      const DOM_SID *sid,
-				      struct acct_info *info);
-
-	NTSTATUS (*pdb_add_aliasmem)(struct pdb_context *context,
-				     const DOM_SID *alias,
-				     const DOM_SID *member);
-
-	NTSTATUS (*pdb_del_aliasmem)(struct pdb_context *context,
-				     const DOM_SID *alias,
-				     const DOM_SID *member);
-
-	NTSTATUS (*pdb_enum_aliasmem)(struct pdb_context *context,
-				      const DOM_SID *alias,
-				      DOM_SID **pp_members, size_t *p_num_members);
-
-	NTSTATUS (*pdb_enum_alias_memberships)(struct pdb_context *context,
-					       TALLOC_CTX *mem_ctx,
-					       const DOM_SID *domain_sid,
-					       const DOM_SID *members,
-					       size_t num_members,
-					       uint32 **pp_alias_rids,
-					       size_t *p_num_alias_rids);
-
-	NTSTATUS (*pdb_lookup_rids)(struct pdb_context *context,
-				    const DOM_SID *domain_sid,
-				    size_t num_rids,
-				    uint32 *rids,
-				    const char **pp_names,
-				    uint32 *attrs);
-
-	NTSTATUS (*pdb_lookup_names)(struct pdb_context *context,
-				     const DOM_SID *domain_sid,
-				     size_t num_names,
-				     const char **names,
-				     uint32 *rids,
-				     uint32 *attrs);
-
-	NTSTATUS (*pdb_get_account_policy)(struct pdb_context *context,
-					   int policy_index, uint32 *value);
-
-	NTSTATUS (*pdb_set_account_policy)(struct pdb_context *context,
-					   int policy_index, uint32 value);
-
-	NTSTATUS (*pdb_get_seq_num)(struct pdb_context *context, time_t *seq_num);
-
-	BOOL (*pdb_search_users)(struct pdb_context *context,
-				 struct pdb_search *search,
-				 uint16 acct_flags);
-	BOOL (*pdb_search_groups)(struct pdb_context *context,
-				  struct pdb_search *search);
-	BOOL (*pdb_search_aliases)(struct pdb_context *context,
-				   struct pdb_search *search,
-				   const DOM_SID *sid);
-	BOOL (*pdb_uid_to_rid)(struct pdb_context *context,
-			       uid_t uid, uint32 *rid);
-	BOOL (*pdb_gid_to_sid)(struct pdb_context *context,
-			       uid_t gid, DOM_SID *sid);
-	BOOL (*pdb_sid_to_id)(struct pdb_context *context, const DOM_SID *sid,
-			      union unid_t *id, enum SID_NAME_USE *type);
-
-	BOOL (*pdb_rid_algorithm)(struct pdb_context *context);
-	BOOL (*pdb_new_rid)(struct pdb_context *context, uint32 *rid);
-
-	void (*free_fn)(struct pdb_context **);
-	
-	TALLOC_CTX *mem_ctx;
-	
-} PDB_CONTEXT;
-
-typedef struct pdb_methods 
+struct pdb_methods 
 {
 	const char *name; /* What name got this module */
-	struct pdb_context *parent;
-
-	/* Use macros from dlinklist.h on these two */
-	struct pdb_methods *next;
-	struct pdb_methods *prev;
 
 	NTSTATUS (*setsampwent)(struct pdb_methods *, BOOL update, uint16 acb_mask);
 	
@@ -530,17 +381,16 @@ typedef struct pdb_methods
 	void *private_data;  /* Private data of some kind */
 	
 	void (*free_private_data)(void **);
+};
 
-} PDB_METHODS;
-
-typedef NTSTATUS (*pdb_init_function)(struct pdb_context *, 
-			 struct pdb_methods **, 
-			 const char *);
+typedef NTSTATUS (*pdb_init_function)(struct pdb_methods **, const char *);
 
 struct pdb_init_function_entry {
 	const char *name;
+
 	/* Function to create a member of the pdb_methods list */
 	pdb_init_function init;
+
 	struct pdb_init_function_entry *prev, *next;
 };
 
diff --git a/source3/include/smbldap.h b/source3/include/smbldap.h
index 8870205bbb..6cfde13f4a 100644
--- a/source3/include/smbldap.h
+++ b/source3/include/smbldap.h
@@ -195,17 +195,13 @@ struct ldapsam_privates {
 };
 
 /* Functions shared between pdb_ldap.c and pdb_nds.c. */
-NTSTATUS pdb_init_ldapsam_compat(PDB_CONTEXT *pdb_context,
-                                 PDB_METHODS **pdb_method,
-                                 const char *location);
+NTSTATUS pdb_init_ldapsam_compat( struct pdb_methods **pdb_method, const char *location);
 void private_data_free_fn(void **result);
 int ldapsam_search_suffix_by_name(struct ldapsam_privates *ldap_state,
                                   const char *user,
                                   LDAPMessage ** result,
                                   const char **attr);
-NTSTATUS pdb_init_ldapsam(PDB_CONTEXT *pdb_context,
-                          PDB_METHODS **pdb_method,
-                          const char *location);
+NTSTATUS pdb_init_ldapsam( struct pdb_methods **pdb_method, const char *location);
 const char** get_userattr_list( TALLOC_CTX *mem_ctx, int schema_ver );
 
 char * smbldap_talloc_single_attribute(LDAP *ldap_struct, LDAPMessage *entry,
@@ -217,7 +213,6 @@ const char *smbldap_talloc_dn(TALLOC_CTX *mem_ctx, LDAP *ld,
 			      LDAPMessage *entry);
 
 
-
 #endif 	/* HAVE_LDAP */
 
 #define LDAP_CONNECT_DEFAULT_TIMEOUT   15
diff --git a/source3/lib/system_smbd.c b/source3/lib/system_smbd.c
index 1d4f88fbb9..3fc2d69a03 100644
--- a/source3/lib/system_smbd.c
+++ b/source3/lib/system_smbd.c
@@ -209,9 +209,30 @@ NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
 	size_t i;
 	gid_t gid;
 
-	if (!sid_to_gid(pdb_get_group_sid(user), &gid)) {
-		DEBUG(10, ("sid_to_gid failed\n"));
-		return NT_STATUS_NO_SUCH_USER;
+	if ( !sid_to_gid(pdb_get_group_sid(user), &gid) ) 
+	{
+		uint32 rid;
+		struct passwd *pwd;
+	
+		/* second try, allow the DOMAIN_USERS group to pass */
+		
+		if ( !sid_peek_check_rid( get_global_sam_sid(), pdb_get_group_sid(user), &rid ) )
+			return NT_STATUS_NO_SUCH_USER;
+			
+		if ( rid != DOMAIN_GROUP_RID_USERS ) {
+			DEBUG(10, ("sid_to_gid failed\n"));
+			return NT_STATUS_NO_SUCH_USER;
+		}
+		
+		DEBUG(5,("pdb_default_enum_group_memberships: sid_to_gid() failed but giving "
+			"free pass to 'Domain Users' as primary group\n"));
+		
+		if ( !(pwd = getpwnam_alloc( NULL, pdb_get_username(user) ) ) ) 
+			return NT_STATUS_NO_SUCH_USER;
+			
+		gid = pwd->pw_gid;
+		
+		TALLOC_FREE( pwd );		
 	}
 
 	if (!getgroups_unix_user(mem_ctx, pdb_get_username(user), gid,
diff --git a/source3/param/loadparm.c b/source3/param/loadparm.c
index 6ed6b90498..207be6c037 100644
--- a/source3/param/loadparm.c
+++ b/source3/param/loadparm.c
@@ -124,7 +124,7 @@ typedef struct {
 	char *szConfigFile;
 	char *szSMBPasswdFile;
 	char *szPrivateDir;
-	char **szPassdbBackend;
+	char *szPassdbBackend;
 	char **szPreloadModules;
 	char *szPasswordServer;
 	char *szSocketOptions;
@@ -861,7 +861,7 @@ static struct parm_struct parm_table[] = {
 	{"password server", P_STRING, P_GLOBAL, &Globals.szPasswordServer, NULL, NULL, FLAG_ADVANCED | FLAG_WIZARD}, 
 	{"smb passwd file", P_STRING, P_GLOBAL, &Globals.szSMBPasswdFile, NULL, NULL, FLAG_ADVANCED}, 
 	{"private dir", P_STRING, P_GLOBAL, &Globals.szPrivateDir, NULL, NULL, FLAG_ADVANCED}, 
-	{"passdb backend", P_LIST, P_GLOBAL, &Globals.szPassdbBackend, NULL, NULL, FLAG_ADVANCED | FLAG_WIZARD}, 
+	{"passdb backend", P_STRING, P_GLOBAL, &Globals.szPassdbBackend, NULL, NULL, FLAG_ADVANCED | FLAG_WIZARD}, 
 	{"algorithmic rid base", P_INTEGER, P_GLOBAL, &Globals.AlgorithmicRidBase, NULL, NULL, FLAG_ADVANCED}, 
 	{"root directory", P_STRING, P_GLOBAL, &Globals.szRootdir, NULL, NULL, FLAG_ADVANCED}, 
 	{"root dir", P_STRING, P_GLOBAL, &Globals.szRootdir, NULL, NULL, FLAG_HIDE}, 
@@ -1560,13 +1560,12 @@ static void init_globals(BOOL first_time_only)
 	   a large number of sites (tridge) */
 	Globals.bHostnameLookups = False;
 
-	str_list_free(&Globals.szPassdbBackend);
 #ifdef WITH_LDAP_SAMCONFIG
 	string_set(&Globals.szLdapServer, "localhost");
 	Globals.ldap_port = 636;
-	Globals.szPassdbBackend = str_list_make("ldapsam_compat", NULL);
+	string_set(&Globals.szPassdbBackend, "ldapsam_compat");
 #else
-	Globals.szPassdbBackend = str_list_make("smbpasswd", NULL);
+	string_set(&Globals.szPassdbBackend, "smbpasswd");
 #endif /* WITH_LDAP_SAMCONFIG */
 	string_set(&Globals.szLdapSuffix, "");
 	string_set(&Globals.szLdapMachineSuffix, "");
@@ -1807,7 +1806,7 @@ FN_GLOBAL_STRING(lp_socket_address, &Globals.szSocketAddress)
 FN_GLOBAL_STRING(lp_nis_home_map_name, &Globals.szNISHomeMapName)
 static FN_GLOBAL_STRING(lp_announce_version, &Globals.szAnnounceVersion)
 FN_GLOBAL_LIST(lp_netbios_aliases, &Globals.szNetbiosAliases)
-FN_GLOBAL_LIST(lp_passdb_backend, &Globals.szPassdbBackend)
+FN_GLOBAL_STRING(lp_passdb_backend, &Globals.szPassdbBackend)
 FN_GLOBAL_LIST(lp_preload_modules, &Globals.szPreloadModules)
 FN_GLOBAL_STRING(lp_panic_action, &Globals.szPanicAction)
 FN_GLOBAL_STRING(lp_adduser_script, &Globals.szAddUserScript)
diff --git a/source3/passdb/passdb.c b/source3/passdb/passdb.c
index 90a51d1cbd..4d20352312 100644
--- a/source3/passdb/passdb.c
+++ b/source3/passdb/passdb.c
@@ -206,7 +206,11 @@ static NTSTATUS pdb_set_sam_sids(SAM_ACCOUNT *account_data, const struct passwd
 			if (!pdb_set_user_sid_from_rid(account_data, DOMAIN_USER_RID_GUEST, PDB_DEFAULT)) {
 				return NT_STATUS_UNSUCCESSFUL;
 			}
-			if (!pdb_set_group_sid_from_rid(account_data, DOMAIN_GROUP_RID_GUESTS, PDB_DEFAULT)) {
+			
+			/* by default the guest account is a member of of the domain users group
+			   as well as the domain guests group.  Verified against Windows NT - 2003 */
+			   
+			if (!pdb_set_group_sid_from_rid(account_data, DOMAIN_GROUP_RID_USERS, PDB_DEFAULT)) {
 				return NT_STATUS_UNSUCCESSFUL;
 			}
 			return NT_STATUS_OK;
diff --git a/source3/passdb/pdb_guest.c b/source3/passdb/pdb_guest.c
index 510cf6abc8..a83b17cc83 100644
--- a/source3/passdb/pdb_guest.c
+++ b/source3/passdb/pdb_guest.c
@@ -114,7 +114,7 @@ static NTSTATUS guestsam_update_sam_account (struct pdb_methods *methods, SAM_AC
 
 	/* apparently thr build farm relies upon this heavior :-( */
 
-	return methods->parent->pdb_add_sam_account(methods->parent, newpwd);
+	return methods->add_sam_account(methods, newpwd);
 #else
 	/* I don't think we should allow any modification of 
 	   the guest account as SID will could messed up with 
@@ -124,16 +124,11 @@ static NTSTATUS guestsam_update_sam_account (struct pdb_methods *methods, SAM_AC
 #endif
 }
 
-NTSTATUS pdb_init_guestsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
+NTSTATUS pdb_init_guestsam(struct pdb_methods **pdb_method, const char *location)
 {
 	NTSTATUS nt_status;
 	
-	if (!pdb_context) {
-		DEBUG(0, ("invalid pdb_context specified\n"));
-		return NT_STATUS_UNSUCCESSFUL;
-	}
-
-	if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
+	if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
 		return nt_status;
 	}
 	
diff --git a/source3/passdb/pdb_interface.c b/source3/passdb/pdb_interface.c
index d8afff2111..04b2f4ca11 100644
--- a/source3/passdb/pdb_interface.c
+++ b/source3/passdb/pdb_interface.c
@@ -25,6 +25,10 @@
 #undef DBGC_CLASS
 #define DBGC_CLASS DBGC_PASSDB
 
+/* Cache of latest SAM lookup query */
+
+static SAM_ACCOUNT *csamuser = NULL;
+
 static struct pdb_init_function_entry *backends = NULL;
 
 static void lazy_initialize_passdb(void)
@@ -123,763 +127,11 @@ static struct pdb_init_function_entry *pdb_find_backend_entry(const char *name)
 	return NULL;
 }
 
-static NTSTATUS context_setsampwent(struct pdb_context *context, BOOL update, uint16 acb_mask)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if (!context) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	context->pwent_methods = context->pdb_methods;
-
-	if (!context->pwent_methods) {
-		/* No passdbs at all */
-		return ret;
-	}
-
-	while (NT_STATUS_IS_ERR(ret = context->pwent_methods->setsampwent(context->pwent_methods, update, acb_mask))) {
-		context->pwent_methods = context->pwent_methods->next;
-		if (context->pwent_methods == NULL) 
-			return NT_STATUS_UNSUCCESSFUL;
-	}
-	return ret;
-}
-
-static void context_endsampwent(struct pdb_context *context)
-{
-	if ((!context)){
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return;
-	}
-
-	if (context->pwent_methods && context->pwent_methods->endsampwent)
-		context->pwent_methods->endsampwent(context->pwent_methods);
-
-	/* So we won't get strange data when calling getsampwent now */
-	context->pwent_methods = NULL;
-}
-
-static NTSTATUS context_getsampwent(struct pdb_context *context, SAM_ACCOUNT *user)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pwent_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-	/* Loop until we find something useful */
-	while (NT_STATUS_IS_ERR(ret = context->pwent_methods->getsampwent(context->pwent_methods, user))) {
-
-		context->pwent_methods->endsampwent(context->pwent_methods);
-
-		context->pwent_methods = context->pwent_methods->next;
-
-		/* All methods are checked now. There are no more entries */
-		if (context->pwent_methods == NULL)
-			return ret;
-	
-		context->pwent_methods->setsampwent(context->pwent_methods, False, 0);
-	}
-	user->methods = context->pwent_methods;
-	pdb_force_pw_initialization(user);
-	return ret;
-}
-
-static NTSTATUS context_getsampwnam(struct pdb_context *context, SAM_ACCOUNT *sam_acct, const char *username)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	struct pdb_methods *curmethods;
-	if ((!context)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-	curmethods = context->pdb_methods;
-	while (curmethods){
-		if (NT_STATUS_IS_OK(ret = curmethods->getsampwnam(curmethods, sam_acct, username))) {
-			pdb_force_pw_initialization(sam_acct);
-			sam_acct->methods = curmethods;
-			return ret;
-		}
-		curmethods = curmethods->next;
-	}
-
-	return ret;
-}
-
-static NTSTATUS context_getsampwsid(struct pdb_context *context, SAM_ACCOUNT *sam_acct, const DOM_SID *sid)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	struct pdb_methods *curmethods;
-	if ((!context)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-	
-	curmethods = context->pdb_methods;
-
-	while (curmethods){
-		if (NT_STATUS_IS_OK(ret = curmethods->getsampwsid(curmethods, sam_acct, sid))) {
-			pdb_force_pw_initialization(sam_acct);
-			sam_acct->methods = curmethods;
-			return ret;
-		}
-		curmethods = curmethods->next;
-	}
-
-	return ret;
-}
-
-static NTSTATUS context_add_sam_account(struct pdb_context *context, SAM_ACCOUNT *sam_acct)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-	const uint8 *lm_pw, *nt_pw;
-	uint16 acb_flags;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	/* disable acccounts with no passwords (that has not 
-	   been allowed by the  ACB_PWNOTREQ bit */
-	
-	lm_pw = pdb_get_lanman_passwd( sam_acct );
-	nt_pw = pdb_get_nt_passwd( sam_acct );
-	acb_flags = pdb_get_acct_ctrl( sam_acct );
-	if ( !lm_pw && !nt_pw && !(acb_flags&ACB_PWNOTREQ) ) {
-		acb_flags |= ACB_DISABLED;
-		pdb_set_acct_ctrl( sam_acct, acb_flags, PDB_CHANGED );
-	}
-	
-	/** @todo  This is where a 're-read on add' should be done */
-	/* We now add a new account to the first database listed. 
-	 * Should we? */
-
-	return context->pdb_methods->add_sam_account(context->pdb_methods, sam_acct);
-}
-
-static NTSTATUS context_update_sam_account(struct pdb_context *context, SAM_ACCOUNT *sam_acct)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-	const uint8 *lm_pw, *nt_pw;
-	uint16 acb_flags;
-
-	if (!context) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	if (!sam_acct || !sam_acct->methods){
-		DEBUG(0, ("invalid sam_acct specified\n"));
-		return ret;
-	}
-
-	/* disable acccounts with no passwords (that has not 
-	   been allowed by the  ACB_PWNOTREQ bit */
-	
-	lm_pw = pdb_get_lanman_passwd( sam_acct );
-	nt_pw = pdb_get_nt_passwd( sam_acct );
-	acb_flags = pdb_get_acct_ctrl( sam_acct );
-	if ( !lm_pw && !nt_pw && !(acb_flags&ACB_PWNOTREQ) ) {
-		acb_flags |= ACB_DISABLED;
-		pdb_set_acct_ctrl( sam_acct, acb_flags, PDB_CHANGED );
-	}
-	
-	/** @todo  This is where a 're-read on update' should be done */
-
-	return sam_acct->methods->update_sam_account(sam_acct->methods, sam_acct);
-}
-
-static NTSTATUS context_delete_sam_account(struct pdb_context *context, SAM_ACCOUNT *sam_acct)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	struct pdb_methods *pdb_selected;
-	if (!context) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	if (!sam_acct->methods){
-		pdb_selected = context->pdb_methods;
-		/* There's no passdb backend specified for this account.
-		 * Try to delete it in every passdb available 
-		 * Needed to delete accounts in smbpasswd that are not
-		 * in /etc/passwd.
-		 */
-		while (pdb_selected){
-			if (NT_STATUS_IS_OK(ret = pdb_selected->delete_sam_account(pdb_selected, sam_acct))) {
-				return ret;
-			}
-			pdb_selected = pdb_selected->next;
-		}
-		return ret;
-	}
-
-	if (!sam_acct->methods->delete_sam_account){
-		DEBUG(0,("invalid sam_acct->methods->delete_sam_account\n"));
-		return ret;
-	}
-	
-	return sam_acct->methods->delete_sam_account(sam_acct->methods, sam_acct);
-}
-
-static NTSTATUS context_rename_sam_account(struct pdb_context *context, SAM_ACCOUNT *oldname, const char *newname)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	struct pdb_methods *pdb_selected;
-	if (!context) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	if (!oldname->methods){
-		pdb_selected = context->pdb_methods;
-		/* There's no passdb backend specified for this account.
-		 * Try to delete it in every passdb available 
-		 * Needed to delete accounts in smbpasswd that are not
-		 * in /etc/passwd.
-		 */
-		while (pdb_selected){
-			if (NT_STATUS_IS_OK(ret = pdb_selected->rename_sam_account(pdb_selected, oldname, newname))) {
-				return ret;
-			}
-			pdb_selected = pdb_selected->next;
-		}
-		return ret;
-	}
-
-	if (!oldname->methods->rename_sam_account){
-		DEBUG(0,("invalid oldname->methods->rename_sam_account\n"));
-		return ret;
-	}
-	
-	return oldname->methods->rename_sam_account(oldname->methods, oldname, newname);
-}
-
-
-static NTSTATUS context_update_login_attempts(struct pdb_context *context,
-						SAM_ACCOUNT *sam_acct, BOOL success)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if (!context) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	if (!sam_acct || !sam_acct->methods){
-		DEBUG(0, ("invalid sam_acct specified\n"));
-		return ret;
-	}
-
-	return sam_acct->methods->update_login_attempts(sam_acct->methods, sam_acct, success);
-}
-
-static NTSTATUS context_getgrsid(struct pdb_context *context,
-				 GROUP_MAP *map, DOM_SID sid)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	struct pdb_methods *curmethods;
-	if ((!context)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-	curmethods = context->pdb_methods;
-	while (curmethods){
-		ret = curmethods->getgrsid(curmethods, map, sid);
-		if (NT_STATUS_IS_OK(ret)) {
-			map->methods = curmethods;
-			return ret;
-		}
-		curmethods = curmethods->next;
-	}
-
-	return ret;
-}
-
-static NTSTATUS context_getgrgid(struct pdb_context *context,
-				 GROUP_MAP *map, gid_t gid)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	struct pdb_methods *curmethods;
-	if ((!context)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-	curmethods = context->pdb_methods;
-	while (curmethods){
-		ret = curmethods->getgrgid(curmethods, map, gid);
-		if (NT_STATUS_IS_OK(ret)) {
-			map->methods = curmethods;
-			return ret;
-		}
-		curmethods = curmethods->next;
-	}
-
-	return ret;
-}
-
-static NTSTATUS context_getgrnam(struct pdb_context *context,
-				 GROUP_MAP *map, const char *name)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	struct pdb_methods *curmethods;
-	if ((!context)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-	curmethods = context->pdb_methods;
-	while (curmethods){
-		ret = curmethods->getgrnam(curmethods, map, name);
-		if (NT_STATUS_IS_OK(ret)) {
-			map->methods = curmethods;
-			return ret;
-		}
-		curmethods = curmethods->next;
-	}
-
-	return ret;
-}
-
-static NTSTATUS context_add_group_mapping_entry(struct pdb_context *context,
-						GROUP_MAP *map)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->add_group_mapping_entry(context->pdb_methods,
-							     map);
-}
-
-static NTSTATUS context_update_group_mapping_entry(struct pdb_context *context,
-						   GROUP_MAP *map)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->
-		pdb_methods->update_group_mapping_entry(context->pdb_methods, map);
-}
-
-static NTSTATUS context_delete_group_mapping_entry(struct pdb_context *context,
-						   DOM_SID sid)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->
-		pdb_methods->delete_group_mapping_entry(context->pdb_methods, sid);
-}
-
-static NTSTATUS context_enum_group_mapping(struct pdb_context *context,
-					   enum SID_NAME_USE sid_name_use,
-					   GROUP_MAP **pp_rmap, size_t *p_num_entries,
-					   BOOL unix_only)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->enum_group_mapping(context->pdb_methods,
-							sid_name_use, pp_rmap,
-							p_num_entries, unix_only);
-}
-
-static NTSTATUS context_enum_group_members(struct pdb_context *context,
-					   TALLOC_CTX *mem_ctx,
-					   const DOM_SID *group,
-					   uint32 **pp_member_rids,
-					   size_t *p_num_members)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->enum_group_members(context->pdb_methods,
-							mem_ctx, group,
-							pp_member_rids,
-							p_num_members);
-}
-
-static NTSTATUS context_enum_group_memberships(struct pdb_context *context,
-					       TALLOC_CTX *mem_ctx,
-					       SAM_ACCOUNT *user,
-					       DOM_SID **pp_sids,
-					       gid_t **pp_gids,
-					       size_t *p_num_groups)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->
-		enum_group_memberships(context->pdb_methods, mem_ctx, user,
-				       pp_sids, pp_gids, p_num_groups);
-}
-
-static NTSTATUS context_find_alias(struct pdb_context *context,
-				   const char *name, DOM_SID *sid)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->find_alias(context->pdb_methods,
-						name, sid);
-}
-
-static NTSTATUS context_create_alias(struct pdb_context *context,
-				     const char *name, uint32 *rid)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->create_alias(context->pdb_methods,
-						  name, rid);
-}
-
-static NTSTATUS context_delete_alias(struct pdb_context *context,
-				     const DOM_SID *sid)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->delete_alias(context->pdb_methods, sid);
-}
-
-static NTSTATUS context_get_aliasinfo(struct pdb_context *context,
-				      const DOM_SID *sid,
-				      struct acct_info *info)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->get_aliasinfo(context->pdb_methods,
-						   sid, info);
-}
-
-static NTSTATUS context_set_aliasinfo(struct pdb_context *context,
-				      const DOM_SID *sid,
-				      struct acct_info *info)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->set_aliasinfo(context->pdb_methods,
-						   sid, info);
-}
-
-static NTSTATUS context_add_aliasmem(struct pdb_context *context,
-				     const DOM_SID *alias,
-				     const DOM_SID *member)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->add_aliasmem(context->pdb_methods,
-						  alias, member);
-}
-	
-static NTSTATUS context_del_aliasmem(struct pdb_context *context,
-				     const DOM_SID *alias,
-				     const DOM_SID *member)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->del_aliasmem(context->pdb_methods,
-						  alias, member);
-}
-	
-static NTSTATUS context_enum_aliasmem(struct pdb_context *context,
-				      const DOM_SID *alias, DOM_SID **pp_members,
-				      size_t *p_num)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->enum_aliasmem(context->pdb_methods,
-						   alias, pp_members, p_num);
-}
-	
-static NTSTATUS context_enum_alias_memberships(struct pdb_context *context,
-					       TALLOC_CTX *mem_ctx,
-					       const DOM_SID *domain_sid,
-					       const DOM_SID *members,
-					       size_t num_members,
-					       uint32 **pp_alias_rids,
-					       size_t *p_num_alias_rids)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->
-		enum_alias_memberships(context->pdb_methods, mem_ctx,
-				       domain_sid, members, num_members,
-				       pp_alias_rids, p_num_alias_rids);
-}
-
-static NTSTATUS context_lookup_rids(struct pdb_context *context,
-				    const DOM_SID *domain_sid,
-				    size_t num_rids,
-				    uint32 *rids,
-				    const char **pp_names,
-				    uint32 *pp_attrs)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->lookup_rids(context->pdb_methods,
-						 domain_sid, num_rids,
-						 rids, pp_names, pp_attrs);
-}
-
-static NTSTATUS context_lookup_names(struct pdb_context *context,
-				     const DOM_SID *domain_sid,
-				     size_t num_names,
-				     const char **pp_names,
-				     uint32 *rids,
-				     uint32 *pp_attrs)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->lookup_names(context->pdb_methods,
-						  domain_sid, num_names,
-						  pp_names, rids, pp_attrs);
-}
-
-static NTSTATUS context_get_account_policy(struct pdb_context *context,
-					   int policy_index, uint32 *value)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->get_account_policy(context->pdb_methods,
-							policy_index, value);
-}
-
-static NTSTATUS context_set_account_policy(struct pdb_context *context,
-					   int policy_index, uint32 value)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->set_account_policy(context->pdb_methods,
-							policy_index, value);
-}
-
-static NTSTATUS context_get_seq_num(struct pdb_context *context, time_t *seq_num)
-{
-	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return ret;
-	}
-
-	return context->pdb_methods->get_seq_num(context->pdb_methods, seq_num);
-}
-
-static BOOL context_uid_to_rid(struct pdb_context *context, uid_t uid,
-			       uint32 *rid)
-{
-	if ((context == NULL) || (context->pdb_methods == NULL)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return False;
-	}
-
-	return context->pdb_methods->uid_to_rid(context->pdb_methods, uid,
-						rid);
-}
-	
-static BOOL context_gid_to_sid(struct pdb_context *context, gid_t gid,
-			       DOM_SID *sid)
-{
-	if ((context == NULL) || (context->pdb_methods == NULL)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return False;
-	}
-
-	return context->pdb_methods->gid_to_sid(context->pdb_methods, gid,
-						sid);
-}
-
-static BOOL context_sid_to_id(struct pdb_context *context,
-			      const DOM_SID *sid,
-			      union unid_t *id, enum SID_NAME_USE *type)
-{
-	if ((context == NULL) || (context->pdb_methods == NULL)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return False;
-	}
-
-	return context->pdb_methods->sid_to_id(context->pdb_methods, sid,
-					       id, type);
-}
-	
-static BOOL context_rid_algorithm(struct pdb_context *context)
-{
-	if ((context == NULL) || (context->pdb_methods == NULL)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return False;
-	}
-
-	return context->pdb_methods->rid_algorithm(context->pdb_methods);
-}
-	
-static BOOL context_new_rid(struct pdb_context *context, uint32 *rid)
-{
-	if ((context == NULL) || (context->pdb_methods == NULL)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return False;
-	}
-
-	return context->pdb_methods->new_rid(context->pdb_methods, rid);
-}
-	
-/******************************************************************
-  Free and cleanup a pdb context, any associated data and anything
-  that the attached modules might have associated.
- *******************************************************************/
-
-static void free_pdb_context(struct pdb_context **context)
-{
-	struct pdb_methods *pdb_selected = (*context)->pdb_methods;
-
-	while (pdb_selected){
-		if(pdb_selected->free_private_data)
-			pdb_selected->free_private_data(&(pdb_selected->private_data));
-		pdb_selected = pdb_selected->next;
-	}
-
-	talloc_destroy((*context)->mem_ctx);
-	*context = NULL;
-}
-
-static BOOL context_search_users(struct pdb_context *context,
-				 struct pdb_search *search, uint16 acct_flags)
-{
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return False;
-	}
-
-	return context->pdb_methods->search_users(context->pdb_methods,
-						  search, acct_flags);
-}
-
-static BOOL context_search_groups(struct pdb_context *context,
-				  struct pdb_search *search)
-{
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return False;
-	}
-
-	return context->pdb_methods->search_groups(context->pdb_methods,
-						   search);
-}
-
-static BOOL context_search_aliases(struct pdb_context *context,
-				   struct pdb_search *search,
-				   const DOM_SID *sid)
-{
-	if ((!context) || (!context->pdb_methods)) {
-		DEBUG(0, ("invalid pdb_context specified!\n"));
-		return False;
-	}
-
-	return context->pdb_methods->search_aliases(context->pdb_methods,
-						    search, sid);
-}
-
 /******************************************************************
   Make a pdb_methods from scratch
  *******************************************************************/
 
-static NTSTATUS make_pdb_methods_name(struct pdb_methods **methods, struct pdb_context *context, const char *selected)
+NTSTATUS make_pdb_method_name(struct pdb_methods **methods, const char *selected)
 {
 	char *module_name = smb_xstrdup(selected);
 	char *module_location = NULL, *p;
@@ -921,191 +173,41 @@ static NTSTATUS make_pdb_methods_name(struct pdb_methods **methods, struct pdb_c
 	}
 
 	DEBUG(5,("Found pdb backend %s\n", module_name));
-	nt_status = entry->init(context, methods, module_location);
-	if (NT_STATUS_IS_OK(nt_status)) {
-		DEBUG(5,("pdb backend %s has a valid init\n", selected));
-	} else {
-		DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n", selected, nt_errstr(nt_status)));
-	}
 	SAFE_FREE(module_name);
-	return nt_status;
-}
-
-/******************************************************************
-  Make a pdb_context from scratch.
- *******************************************************************/
-
-static NTSTATUS make_pdb_context(struct pdb_context **context) 
-{
-	TALLOC_CTX *mem_ctx;
-
-	mem_ctx = talloc_init("pdb_context internal allocation context");
-
-	if (!mem_ctx) {
-		DEBUG(0, ("make_pdb_context: talloc init failed!\n"));
-		return NT_STATUS_NO_MEMORY;
-	}		
-
-	*context = TALLOC_P(mem_ctx, struct pdb_context);
-	if (!*context) {
-		DEBUG(0, ("make_pdb_context: talloc failed!\n"));
-		return NT_STATUS_NO_MEMORY;
-	}
-
-	ZERO_STRUCTP(*context);
-
-	(*context)->mem_ctx = mem_ctx;
-
-	(*context)->pdb_setsampwent = context_setsampwent;
-	(*context)->pdb_endsampwent = context_endsampwent;
-	(*context)->pdb_getsampwent = context_getsampwent;
-	(*context)->pdb_getsampwnam = context_getsampwnam;
-	(*context)->pdb_getsampwsid = context_getsampwsid;
-	(*context)->pdb_add_sam_account = context_add_sam_account;
-	(*context)->pdb_update_sam_account = context_update_sam_account;
-	(*context)->pdb_delete_sam_account = context_delete_sam_account;
-	(*context)->pdb_rename_sam_account = context_rename_sam_account;
-	(*context)->pdb_update_login_attempts = context_update_login_attempts;
-	(*context)->pdb_getgrsid = context_getgrsid;
-	(*context)->pdb_getgrgid = context_getgrgid;
-	(*context)->pdb_getgrnam = context_getgrnam;
-	(*context)->pdb_add_group_mapping_entry = context_add_group_mapping_entry;
-	(*context)->pdb_update_group_mapping_entry = context_update_group_mapping_entry;
-	(*context)->pdb_delete_group_mapping_entry = context_delete_group_mapping_entry;
-	(*context)->pdb_enum_group_mapping = context_enum_group_mapping;
-	(*context)->pdb_enum_group_members = context_enum_group_members;
-	(*context)->pdb_enum_group_memberships = context_enum_group_memberships;
-
-	(*context)->pdb_find_alias = context_find_alias;
-	(*context)->pdb_create_alias = context_create_alias;
-	(*context)->pdb_delete_alias = context_delete_alias;
-	(*context)->pdb_get_aliasinfo = context_get_aliasinfo;
-	(*context)->pdb_set_aliasinfo = context_set_aliasinfo;
-	(*context)->pdb_add_aliasmem = context_add_aliasmem;
-	(*context)->pdb_del_aliasmem = context_del_aliasmem;
-	(*context)->pdb_enum_aliasmem = context_enum_aliasmem;
-	(*context)->pdb_enum_alias_memberships = context_enum_alias_memberships;
-	(*context)->pdb_lookup_rids = context_lookup_rids;
-	(*context)->pdb_lookup_names = context_lookup_names;
-
-	(*context)->pdb_get_account_policy = context_get_account_policy;
-	(*context)->pdb_set_account_policy = context_set_account_policy;
-
-	(*context)->pdb_get_seq_num = context_get_seq_num;
-
-	(*context)->pdb_search_users = context_search_users;
-	(*context)->pdb_search_groups = context_search_groups;
-	(*context)->pdb_search_aliases = context_search_aliases;
-
-	(*context)->pdb_uid_to_rid = context_uid_to_rid;
-	(*context)->pdb_gid_to_sid = context_gid_to_sid;
-	(*context)->pdb_sid_to_id = context_sid_to_id;
-
-	(*context)->pdb_rid_algorithm = context_rid_algorithm;
-	(*context)->pdb_new_rid = context_new_rid;
-
-	(*context)->free_fn = free_pdb_context;
-
-	return NT_STATUS_OK;
-}
-
-
-/******************************************************************
-  Make a pdb_context, given an array of strings
- *******************************************************************/
-
-NTSTATUS make_pdb_context_list(struct pdb_context **context, const char **selected) 
-{
-	int i = 0;
-	struct pdb_methods *curmethods, *tmpmethods;
-	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
-	BOOL have_guest = False;
-
-	if (!NT_STATUS_IS_OK(nt_status = make_pdb_context(context))) {
-		return nt_status;
-	}
-
-	if (!selected) {
-		DEBUG(0, ("ERROR: empty passdb backend list!\n"));
-		return nt_status;
-	}
 
-	while (selected[i]){
-		if (strcmp(selected[i], "guest") == 0) {
-			have_guest = True;
-		}
-		/* Try to initialise pdb */
-		DEBUG(5,("Trying to load: %s\n", selected[i]));
-		if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods_name(&curmethods, *context, selected[i]))) {
-			DEBUG(1, ("Loading %s failed!\n", selected[i]));
-			free_pdb_context(context);
-			return nt_status;
-		}
-		curmethods->parent = *context;
-		DLIST_ADD_END((*context)->pdb_methods, curmethods, tmpmethods);
-		i++;
-	}
-
-	if (have_guest)
-		return NT_STATUS_OK;
-
-	if ( (lp_guestaccount() == NULL) ||
-	     (*lp_guestaccount() == '\0') ) {
-		/* We explicitly don't want guest access. No idea what
-		   else that breaks, but be it that way. */
-		return NT_STATUS_OK;
-	}
-
-	if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods_name(&curmethods,
-							       *context,
-							       "guest"))) {
-		DEBUG(1, ("Loading guest module failed!\n"));
-		free_pdb_context(context);
+	if ( !NT_STATUS_IS_OK( nt_status = entry->init(methods, module_location) ) ) {
+		DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n", 
+			selected, nt_errstr(nt_status)));
 		return nt_status;
 	}
 
-	curmethods->parent = *context;
-	DLIST_ADD_END((*context)->pdb_methods, curmethods, tmpmethods);
-	
-	return NT_STATUS_OK;
-}
+	DEBUG(5,("pdb backend %s has a valid init\n", selected));
 
-/******************************************************************
-  Make a pdb_context, given a text string.
- *******************************************************************/
-
-NTSTATUS make_pdb_context_string(struct pdb_context **context, const char *selected) 
-{
-	NTSTATUS ret;
-	char **newsel = str_list_make(selected, NULL);
-	ret = make_pdb_context_list(context, (const char **)newsel);
-	str_list_free(&newsel);
-	return ret;
+	return nt_status;
 }
 
 /******************************************************************
- Return an already initialised pdb_context, to facilitate backward 
- compatibility (see functions below).
+ Return an already initialised pdn_methods structure
 *******************************************************************/
 
-static struct pdb_context *pdb_get_static_context(BOOL reload) 
+static struct pdb_methods *pdb_get_methods( BOOL reload ) 
 {
-	static struct pdb_context *pdb_context = NULL;
+	static struct pdb_methods *pdb = NULL;
 
-	if ((pdb_context) && (reload)) {
-		pdb_context->free_fn(&pdb_context);
-		if (!NT_STATUS_IS_OK(make_pdb_context_list(&pdb_context, lp_passdb_backend()))) {
+	if ( pdb && reload ) {
+		pdb->free_private_data( &(pdb->private_data) );
+		if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
 			return NULL;
 		}
 	}
 
-	if (!pdb_context) {
-		if (!NT_STATUS_IS_OK(make_pdb_context_list(&pdb_context, lp_passdb_backend()))) {
+	if ( !pdb ) {
+		if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
 			return NULL;
 		}
 	}
 
-	return pdb_context;
+	return pdb;
 }
 
 /******************************************************************
@@ -1114,227 +216,266 @@ static struct pdb_context *pdb_get_static_context(BOOL reload)
 
 BOOL pdb_setsampwent(BOOL update, uint16 acb_mask) 
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->pdb_setsampwent(pdb_context, update, acb_mask));
+	return NT_STATUS_IS_OK(pdb->setsampwent(pdb, update, acb_mask));
 }
 
 void pdb_endsampwent(void) 
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return;
 	}
 
-	pdb_context->pdb_endsampwent(pdb_context);
+	pdb->endsampwent(pdb);
 }
 
 BOOL pdb_getsampwent(SAM_ACCOUNT *user) 
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->pdb_getsampwent(pdb_context, user));
-}
+	if ( !NT_STATUS_IS_OK(pdb->getsampwent(pdb, user) ) ) {
+		return False;
+	}
+
+	pdb_force_pw_initialization( user );
 
-static SAM_ACCOUNT *sam_account_cache = NULL;
+	return True;
+}
 
 BOOL pdb_getsampwnam(SAM_ACCOUNT *sam_acct, const char *username) 
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	if (!NT_STATUS_IS_OK(pdb_context->pdb_getsampwnam(pdb_context,
-							  sam_acct, username)))
+	if (!NT_STATUS_IS_OK(pdb->getsampwnam(pdb, sam_acct, username))) {
 		return False;
+	}
 
-	if (sam_account_cache != NULL) {
-		pdb_free_sam(&sam_account_cache);
-		sam_account_cache = NULL;
+	if (csamuser != NULL) {
+		pdb_free_sam(&csamuser);
+		csamuser = NULL;
 	}
 
-	pdb_copy_sam_account(sam_acct, &sam_account_cache);
+	pdb_force_pw_initialization( sam_acct );
+	pdb_copy_sam_account(sam_acct, &csamuser);
+
 	return True;
 }
 
+/**********************************************************************
+**********************************************************************/
+
+BOOL guest_user_info( SAM_ACCOUNT *user )
+{
+	struct passwd *pwd;
+	NTSTATUS ntstatus;
+	const char *guestname = lp_guestaccount();
+	
+	if ( !(pwd = getpwnam_alloc( NULL, guestname ) ) ) {
+		DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n", 
+			guestname));
+		return False;
+	}
+	
+	/* fill in from the users information */
+	
+	ntstatus = pdb_fill_sam_pw( user, pwd );
+	
+	return NT_STATUS_IS_OK(ntstatus);
+
+}
+
+/**********************************************************************
+**********************************************************************/
+
 BOOL pdb_getsampwsid(SAM_ACCOUNT *sam_acct, const DOM_SID *sid) 
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb;
+	uint32 rid;
 
-	if (!pdb_context) {
+	if ( !(pdb = pdb_get_methods(False)) ) {
 		return False;
 	}
 
-	if ((sam_account_cache != NULL) &&
-	    (sid_equal(sid, pdb_get_user_sid(sam_account_cache))))
-		return pdb_copy_sam_account(sam_account_cache, &sam_acct);
+	/* hard code the Guest RID of 501 */
+
+	if ( !sid_peek_check_rid( get_global_sam_sid(), sid, &rid ) )
+		return False;
+
+	if ( rid == DOMAIN_USER_RID_GUEST ) {
+		DEBUG(6,("pdb_getsampwsid: Building guest account\n"));
+		return guest_user_info( sam_acct );
+	}
+	
+	/* check the cache first */
+	
+	if ( csamuser && sid_equal(sid, pdb_get_user_sid(csamuser) ) )
+		return pdb_copy_sam_account(csamuser, &sam_acct);
 
-	return NT_STATUS_IS_OK(pdb_context->pdb_getsampwsid(pdb_context, sam_acct, sid));
+	return NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid));
 }
 
 BOOL pdb_add_sam_account(SAM_ACCOUNT *sam_acct) 
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 	
-	return NT_STATUS_IS_OK(pdb_context->pdb_add_sam_account(pdb_context, sam_acct));
+	return NT_STATUS_IS_OK(pdb->add_sam_account(pdb, sam_acct));
 }
 
 NTSTATUS pdb_update_sam_account(SAM_ACCOUNT *sam_acct) 
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_UNSUCCESSFUL;
 	}
 
-	if (sam_account_cache != NULL) {
-		pdb_free_sam(&sam_account_cache);
-		sam_account_cache = NULL;
+	if (csamuser != NULL) {
+		pdb_free_sam(&csamuser);
+		csamuser = NULL;
 	}
 
-	return pdb_context->pdb_update_sam_account(pdb_context, sam_acct);
+	return pdb->update_sam_account(pdb, sam_acct);
 }
 
 BOOL pdb_delete_sam_account(SAM_ACCOUNT *sam_acct) 
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	if (sam_account_cache != NULL) {
-		pdb_free_sam(&sam_account_cache);
-		sam_account_cache = NULL;
+	if (csamuser != NULL) {
+		pdb_free_sam(&csamuser);
+		csamuser = NULL;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->pdb_delete_sam_account(pdb_context, sam_acct));
+	return NT_STATUS_IS_OK(pdb->delete_sam_account(pdb, sam_acct));
 }
 
 NTSTATUS pdb_rename_sam_account(SAM_ACCOUNT *oldname, const char *newname)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_NOT_IMPLEMENTED;
 	}
 
-	if (sam_account_cache != NULL) {
-		pdb_free_sam(&sam_account_cache);
-		sam_account_cache = NULL;
+	if (csamuser != NULL) {
+		pdb_free_sam(&csamuser);
+		csamuser = NULL;
 	}
 
-	return pdb_context->pdb_rename_sam_account(pdb_context, oldname, newname);
+	return pdb->rename_sam_account(pdb, oldname, newname);
 }
 
 NTSTATUS pdb_update_login_attempts(SAM_ACCOUNT *sam_acct, BOOL success)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_NOT_IMPLEMENTED;
 	}
 
-	return pdb_context->pdb_update_login_attempts(pdb_context, sam_acct, success);
+	return pdb->update_login_attempts(pdb, sam_acct, success);
 }
 
 BOOL pdb_getgrsid(GROUP_MAP *map, DOM_SID sid)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->
-			       pdb_getgrsid(pdb_context, map, sid));
+	return NT_STATUS_IS_OK(pdb->getgrsid(pdb, map, sid));
 }
 
 BOOL pdb_getgrgid(GROUP_MAP *map, gid_t gid)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->
-			       pdb_getgrgid(pdb_context, map, gid));
+	return NT_STATUS_IS_OK(pdb->getgrgid(pdb, map, gid));
 }
 
 BOOL pdb_getgrnam(GROUP_MAP *map, const char *name)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->
-			       pdb_getgrnam(pdb_context, map, name));
+	return NT_STATUS_IS_OK(pdb->getgrnam(pdb, map, name));
 }
 
 NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_UNSUCCESSFUL;
 	}
 
-	return pdb_context->pdb_add_group_mapping_entry(pdb_context, map);
+	return pdb->add_group_mapping_entry(pdb, map);
 }
 
 NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_UNSUCCESSFUL;
 	}
 
-	return pdb_context->pdb_update_group_mapping_entry(pdb_context, map);
+	return pdb->update_group_mapping_entry(pdb, map);
 }
 
 BOOL pdb_delete_group_mapping_entry(DOM_SID sid)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->
-			       pdb_delete_group_mapping_entry(pdb_context, sid));
+	return NT_STATUS_IS_OK(pdb->delete_group_mapping_entry(pdb, sid));
 }
 
 BOOL pdb_enum_group_mapping(enum SID_NAME_USE sid_name_use, GROUP_MAP **pp_rmap,
 			    size_t *p_num_entries, BOOL unix_only)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->
-			       pdb_enum_group_mapping(pdb_context, sid_name_use,
-						      pp_rmap, p_num_entries, unix_only));
+	return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid_name_use,
+		pp_rmap, p_num_entries, unix_only));
 }
 
 NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
@@ -1342,13 +483,13 @@ NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
 				uint32 **pp_member_rids,
 				size_t *p_num_members)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_UNSUCCESSFUL;
 	}
 
-	return pdb_context->pdb_enum_group_members(pdb_context, mem_ctx, sid, 
+	return pdb->enum_group_members(pdb, mem_ctx, sid, 
 						   pp_member_rids, p_num_members);
 }
 
@@ -1356,109 +497,109 @@ NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, SAM_ACCOUNT *user,
 				    DOM_SID **pp_sids, gid_t **pp_gids,
 				    size_t *p_num_groups)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_UNSUCCESSFUL;
 	}
 
-	return pdb_context->pdb_enum_group_memberships(
-		pdb_context, mem_ctx, user,
+	return pdb->enum_group_memberships(
+		pdb, mem_ctx, user,
 		pp_sids, pp_gids, p_num_groups);
 }
 
 BOOL pdb_find_alias(const char *name, DOM_SID *sid)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->pdb_find_alias(pdb_context,
+	return NT_STATUS_IS_OK(pdb->find_alias(pdb,
 							     name, sid));
 }
 
 NTSTATUS pdb_create_alias(const char *name, uint32 *rid)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_NOT_IMPLEMENTED;
 	}
 
-	return pdb_context->pdb_create_alias(pdb_context, name, rid);
+	return pdb->create_alias(pdb, name, rid);
 }
 
 BOOL pdb_delete_alias(const DOM_SID *sid)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->pdb_delete_alias(pdb_context,
+	return NT_STATUS_IS_OK(pdb->delete_alias(pdb,
 							     sid));
 							    
 }
 
 BOOL pdb_get_aliasinfo(const DOM_SID *sid, struct acct_info *info)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->pdb_get_aliasinfo(pdb_context, sid,
+	return NT_STATUS_IS_OK(pdb->get_aliasinfo(pdb, sid,
 							      info));
 }
 
 BOOL pdb_set_aliasinfo(const DOM_SID *sid, struct acct_info *info)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->pdb_set_aliasinfo(pdb_context, sid,
+	return NT_STATUS_IS_OK(pdb->set_aliasinfo(pdb, sid,
 							      info));
 }
 
 NTSTATUS pdb_add_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_UNSUCCESSFUL;
 	}
 
-	return pdb_context->pdb_add_aliasmem(pdb_context, alias, member);
+	return pdb->add_aliasmem(pdb, alias, member);
 }
 
 NTSTATUS pdb_del_aliasmem(const DOM_SID *alias, const DOM_SID *member)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_UNSUCCESSFUL;
 	}
 
-	return pdb_context->pdb_del_aliasmem(pdb_context, alias, member);
+	return pdb->del_aliasmem(pdb, alias, member);
 }
 
 NTSTATUS pdb_enum_aliasmem(const DOM_SID *alias,
 			   DOM_SID **pp_members, size_t *p_num_members)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_UNSUCCESSFUL;
 	}
 
-	return pdb_context->pdb_enum_aliasmem(pdb_context, alias,
+	return pdb->enum_aliasmem(pdb, alias,
 					      pp_members, p_num_members);
 }
 
@@ -1468,13 +609,13 @@ NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx,
 				    uint32 **pp_alias_rids,
 				    size_t *p_num_alias_rids)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_NOT_IMPLEMENTED;
 	}
 
-	return pdb_context->pdb_enum_alias_memberships(pdb_context, mem_ctx,
+	return pdb->enum_alias_memberships(pdb, mem_ctx,
 						       domain_sid,
 						       members, num_members,
 						       pp_alias_rids,
@@ -1487,13 +628,13 @@ NTSTATUS pdb_lookup_rids(const DOM_SID *domain_sid,
 			 const char **names,
 			 uint32 *attrs)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_NOT_IMPLEMENTED;
 	}
 
-	return pdb_context->pdb_lookup_rids(pdb_context, domain_sid,
+	return pdb->lookup_rids(pdb, domain_sid,
 					    num_rids, rids, names, attrs);
 }
 
@@ -1503,102 +644,99 @@ NTSTATUS pdb_lookup_names(const DOM_SID *domain_sid,
 			  uint32 *rids,
 			  uint32 *attrs)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return NT_STATUS_NOT_IMPLEMENTED;
 	}
 
-	return pdb_context->pdb_lookup_names(pdb_context, domain_sid,
+	return pdb->lookup_names(pdb, domain_sid,
 					     num_names, names, rids, attrs);
 }
 
 BOOL pdb_get_account_policy(int policy_index, uint32 *value)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->
-			       pdb_get_account_policy(pdb_context, policy_index, value));
+	return NT_STATUS_IS_OK(pdb->get_account_policy(pdb, policy_index, value));
 }
 
 BOOL pdb_set_account_policy(int policy_index, uint32 value)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->
-			       pdb_set_account_policy(pdb_context, policy_index, value));
+	return NT_STATUS_IS_OK(pdb->set_account_policy(pdb, policy_index, value));
 }
 
 BOOL pdb_get_seq_num(time_t *seq_num)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return NT_STATUS_IS_OK(pdb_context->
-			       pdb_get_seq_num(pdb_context, seq_num));
+	return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num));
 }
 
 BOOL pdb_uid_to_rid(uid_t uid, uint32 *rid)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return pdb_context->pdb_uid_to_rid(pdb_context, uid, rid);
+	return pdb->uid_to_rid(pdb, uid, rid);
 }
 
 BOOL pdb_gid_to_sid(gid_t gid, DOM_SID *sid)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return pdb_context->pdb_gid_to_sid(pdb_context, gid, sid);
+	return pdb->gid_to_sid(pdb, gid, sid);
 }
 
 BOOL pdb_sid_to_id(const DOM_SID *sid, union unid_t *id,
 		   enum SID_NAME_USE *type)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return pdb_context->pdb_sid_to_id(pdb_context, sid, id, type);
+	return pdb->sid_to_id(pdb, sid, id, type);
 }
 
 BOOL pdb_rid_algorithm(void)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
-	return pdb_context->pdb_rid_algorithm(pdb_context);
+	return pdb->rid_algorithm(pdb);
 }
 
 BOOL pdb_new_rid(uint32 *rid)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 
-	if (!pdb_context) {
+	if ( !pdb ) {
 		return False;
 	}
 
@@ -1617,7 +755,7 @@ BOOL pdb_new_rid(uint32 *rid)
 		return False;
 	}
 
-	return pdb_context->pdb_new_rid(pdb_context, rid);
+	return pdb->new_rid(pdb, rid);
 }
 
 /***************************************************************
@@ -1628,7 +766,7 @@ BOOL pdb_new_rid(uint32 *rid)
 
 BOOL initialize_password_db(BOOL reload)
 {	
-	return (pdb_get_static_context(reload) != NULL);
+	return (pdb_get_methods(reload) != NULL);
 }
 
 
@@ -2360,15 +1498,15 @@ static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
 
 struct pdb_search *pdb_search_users(uint16 acct_flags)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 	struct pdb_search *result;
 
-	if (pdb_context == NULL) return NULL;
+	if (pdb == NULL) return NULL;
 
 	result = pdb_search_init(PDB_USER_SEARCH);
 	if (result == NULL) return NULL;
 
-	if (!pdb_context->pdb_search_users(pdb_context, result, acct_flags)) {
+	if (!pdb->search_users(pdb, result, acct_flags)) {
 		talloc_destroy(result->mem_ctx);
 		return NULL;
 	}
@@ -2377,15 +1515,15 @@ struct pdb_search *pdb_search_users(uint16 acct_flags)
 
 struct pdb_search *pdb_search_groups(void)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 	struct pdb_search *result;
 
-	if (pdb_context == NULL) return NULL;
+	if (pdb == NULL) return NULL;
 
 	result = pdb_search_init(PDB_GROUP_SEARCH);
 	if (result == NULL) return NULL;
 
-	if (!pdb_context->pdb_search_groups(pdb_context, result)) {
+	if (!pdb->search_groups(pdb, result)) {
 		talloc_destroy(result->mem_ctx);
 		return NULL;
 	}
@@ -2394,15 +1532,15 @@ struct pdb_search *pdb_search_groups(void)
 
 struct pdb_search *pdb_search_aliases(const DOM_SID *sid)
 {
-	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	struct pdb_methods *pdb = pdb_get_methods(False);
 	struct pdb_search *result;
 
-	if (pdb_context == NULL) return NULL;
+	if (pdb == NULL) return NULL;
 
 	result = pdb_search_init(PDB_ALIAS_SEARCH);
 	if (result == NULL) return NULL;
 
-	if (!pdb_context->pdb_search_aliases(pdb_context, result, sid)) {
+	if (!pdb->search_aliases(pdb, result, sid)) {
 		talloc_destroy(result->mem_ctx);
 		return NULL;
 	}
@@ -2443,16 +1581,21 @@ void pdb_search_destroy(struct pdb_search *search)
 	talloc_destroy(search->mem_ctx);
 }
 
-NTSTATUS make_pdb_methods(TALLOC_CTX *mem_ctx, PDB_METHODS **methods) 
+/*******************************************************************
+ Create a pdb_methods structure and initialize it with the default
+ operations.  In this way a passdb module can simply implement
+ the functionality it cares about.  However, normally this is done 
+ in groups of related functions.
+*******************************************************************/
+
+NTSTATUS make_pdb_method( struct pdb_methods **methods ) 
 {
-	*methods = TALLOC_P(mem_ctx, struct pdb_methods);
+	/* allocate memory for the structure as its own talloc CTX */
 
-	if (!*methods) {
+	if ( !(*methods = TALLOC_ZERO_P(NULL, struct pdb_methods) ) ) {
 		return NT_STATUS_NO_MEMORY;
 	}
 
-	ZERO_STRUCTP(*methods);
-
 	(*methods)->setsampwent = pdb_default_setsampwent;
 	(*methods)->endsampwent = pdb_default_endsampwent;
 	(*methods)->getsampwent = pdb_default_getsampwent;
diff --git a/source3/passdb/pdb_ldap.c b/source3/passdb/pdb_ldap.c
index 608cd8bc8c..24a7304f87 100644
--- a/source3/passdb/pdb_ldap.c
+++ b/source3/passdb/pdb_ldap.c
@@ -4632,17 +4632,17 @@ static void free_private_data(void **vp)
 	/* No need to free any further, as it is talloc()ed */
 }
 
-/**********************************************************************
- Intitalise the parts of the pdb_context that are common to all pdb_ldap modes
- *********************************************************************/
+/*********************************************************************
+ Intitalise the parts of the pdb_methods structure that are common to 
+ all pdb_ldap modes
+*********************************************************************/
 
-static NTSTATUS pdb_init_ldapsam_common(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, 
-					const char *location)
+static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
 {
 	NTSTATUS nt_status;
 	struct ldapsam_privates *ldap_state;
 
-	if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
+	if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
 		return nt_status;
 	}
 
@@ -4676,18 +4676,18 @@ static NTSTATUS pdb_init_ldapsam_common(PDB_CONTEXT *pdb_context, PDB_METHODS **
 
 	/* TODO: Setup private data and free */
 
-	ldap_state = TALLOC_ZERO_P(pdb_context->mem_ctx, struct ldapsam_privates);
-	if (!ldap_state) {
+	if ( !(ldap_state = TALLOC_ZERO_P(*pdb_method, struct ldapsam_privates)) ) {
 		DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
 		return NT_STATUS_NO_MEMORY;
 	}
 
-	if (!NT_STATUS_IS_OK(nt_status = 
-			     smbldap_init(pdb_context->mem_ctx, location, 
-					  &ldap_state->smbldap_state)));
+	nt_status = smbldap_init(*pdb_method, location, &ldap_state->smbldap_state);
 
-	ldap_state->domain_name = talloc_strdup(pdb_context->mem_ctx, get_global_sam_name());
-	if (!ldap_state->domain_name) {
+	if ( !NT_STATUS_IS_OK(nt_status) ) {
+		return nt_status;
+	}
+
+	if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
 		return NT_STATUS_NO_MEMORY;
 	}
 
@@ -4702,13 +4702,14 @@ static NTSTATUS pdb_init_ldapsam_common(PDB_CONTEXT *pdb_context, PDB_METHODS **
  Initialise the 'compat' mode for pdb_ldap
  *********************************************************************/
 
-NTSTATUS pdb_init_ldapsam_compat(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
+NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
 {
 	NTSTATUS nt_status;
 	struct ldapsam_privates *ldap_state;
+	char *uri = talloc_strdup( NULL, location );
 
 #ifdef WITH_LDAP_SAMCONFIG
-	if (!location) {
+	if (!uri) {
 		int ldap_port = lp_ldap_port();
 			
 		/* remap default port if not using SSL (ie clear or TLS) */
@@ -4716,17 +4717,23 @@ NTSTATUS pdb_init_ldapsam_compat(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_met
 			ldap_port = 389;
 		}
 
-		location = talloc_asprintf(pdb_context->mem_ctx, "%s://%s:%d", lp_ldap_ssl() == LDAP_SSL_ON ? "ldaps" : "ldap", lp_ldap_server(), ldap_port);
-		if (!location) {
+		uri = talloc_asprintf(NULL, "%s://%s:%d", lp_ldap_ssl() == LDAP_SSL_ON ? "ldaps" : "ldap", lp_ldap_server(), ldap_port);
+		if (!uri) {
 			return NT_STATUS_NO_MEMORY;
 		}
+		location = uri;
 	}
 #endif
 
-	if (!NT_STATUS_IS_OK(nt_status = pdb_init_ldapsam_common(pdb_context, pdb_method, location))) {
+	if (!NT_STATUS_IS_OK(nt_status = pdb_init_ldapsam_common( pdb_method, uri ))) {
 		return nt_status;
 	}
 
+	/* the module itself stores a copy of the location so throw this one away */
+
+	if ( uri )
+		TALLOC_FREE( uri );
+
 	(*pdb_method)->name = "ldapsam_compat";
 
 	ldap_state = (*pdb_method)->private_data;
@@ -4741,7 +4748,7 @@ NTSTATUS pdb_init_ldapsam_compat(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_met
  Initialise the normal mode for pdb_ldap
  *********************************************************************/
 
-NTSTATUS pdb_init_ldapsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
+NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
 {
 	NTSTATUS nt_status;
 	struct ldapsam_privates *ldap_state;
@@ -4754,7 +4761,7 @@ NTSTATUS pdb_init_ldapsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, co
 	pstring domain_sid_string;
 	char *dn;
 
-	nt_status = pdb_init_ldapsam_common(pdb_context, pdb_method, location);
+	nt_status = pdb_init_ldapsam_common(pdb_method, location);
 	if (!NT_STATUS_IS_OK(nt_status)) {
 		return nt_status;
 	}
diff --git a/source3/passdb/pdb_nds.c b/source3/passdb/pdb_nds.c
index 49c3c9db06..d5636d6812 100644
--- a/source3/passdb/pdb_nds.c
+++ b/source3/passdb/pdb_nds.c
@@ -848,10 +848,11 @@ static NTSTATUS pdb_nds_update_login_attempts(struct pdb_methods *methods,
 }
 
 /**********************************************************************
- Intitalise the parts of the pdb_context that are common to NDS_ldapsam modes
+ Intitalise the parts of the pdb_methods structuire that are common 
+ to NDS_ldapsam modes
  *********************************************************************/
 
-static NTSTATUS pdb_init_NDS_ldapsam_common(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
+static NTSTATUS pdb_init_NDS_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
 {
 	struct ldapsam_privates *ldap_state = (*pdb_method)->private_data;
 
@@ -872,13 +873,13 @@ static NTSTATUS pdb_init_NDS_ldapsam_common(PDB_CONTEXT *pdb_context, PDB_METHOD
  Initialise the 'nds compat' mode for pdb_ldap
  *********************************************************************/
 
-static NTSTATUS pdb_init_NDS_ldapsam_compat(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
+static NTSTATUS pdb_init_NDS_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
 {
-	NTSTATUS nt_status = pdb_init_ldapsam_compat(pdb_context, pdb_method, location);
+	NTSTATUS nt_status = pdb_init_ldapsam_compat(pdb_method, location);
 
 	(*pdb_method)->name = "NDS_ldapsam_compat";
 
-	pdb_init_NDS_ldapsam_common(pdb_context, pdb_method, location);
+	pdb_init_NDS_ldapsam_common(pdb_method, location);
 
 	return nt_status;
 }
@@ -888,13 +889,13 @@ static NTSTATUS pdb_init_NDS_ldapsam_compat(PDB_CONTEXT *pdb_context, PDB_METHOD
  Initialise the 'nds' normal mode for pdb_ldap
  *********************************************************************/
 
-static NTSTATUS pdb_init_NDS_ldapsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
+static NTSTATUS pdb_init_NDS_ldapsam(struct pdb_methods **pdb_method, const char *location)
 {
-	NTSTATUS nt_status = pdb_init_ldapsam(pdb_context, pdb_method, location);
+	NTSTATUS nt_status = pdb_init_ldapsam(pdb_method, location);
 
 	(*pdb_method)->name = "NDS_ldapsam";
 
-	pdb_init_NDS_ldapsam_common(pdb_context, pdb_method, location);
+	pdb_init_NDS_ldapsam_common(pdb_method, location);
 
 	return nt_status;
 }
diff --git a/source3/passdb/pdb_plugin.c b/source3/passdb/pdb_plugin.c
index 027cd0b5d3..9d835a48ad 100644
--- a/source3/passdb/pdb_plugin.c
+++ b/source3/passdb/pdb_plugin.c
@@ -24,7 +24,7 @@
 #undef DBGC_CLASS
 #define DBGC_CLASS DBGC_PASSDB
 
-NTSTATUS pdb_init_plugin(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
+NTSTATUS pdb_init_plugin(struct pdb_methods **pdb_method, const char *location)
 {
 	void * dl_handle;
 	char *plugin_location, *plugin_name, *p;
@@ -76,5 +76,5 @@ NTSTATUS pdb_init_plugin(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, con
 	}
 
 	DEBUG(5, ("Starting sam plugin %s with location %s\n", plugin_name, plugin_location));
-	return plugin_init(pdb_context, pdb_method, plugin_location);
+	return plugin_init(pdb_method, plugin_location);
 }
diff --git a/source3/passdb/pdb_smbpasswd.c b/source3/passdb/pdb_smbpasswd.c
index 06a3f4f4a1..7839860bf4 100644
--- a/source3/passdb/pdb_smbpasswd.c
+++ b/source3/passdb/pdb_smbpasswd.c
@@ -1540,12 +1540,12 @@ static void free_private_data(void **vp)
 	/* No need to free any further, as it is talloc()ed */
 }
 
-static NTSTATUS pdb_init_smbpasswd(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
+static NTSTATUS pdb_init_smbpasswd( struct pdb_methods **pdb_method, const char *location )
 {
 	NTSTATUS nt_status;
 	struct smbpasswd_privates *privates;
 
-	if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
+	if ( !NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method )) ) {
 		return nt_status;
 	}
 
@@ -1565,9 +1565,7 @@ static NTSTATUS pdb_init_smbpasswd(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_m
 
 	/* Setup private data and free function */
 
-	privates = TALLOC_ZERO_P(pdb_context->mem_ctx, struct smbpasswd_privates);
-
-	if (!privates) {
+	if ( !(privates = TALLOC_ZERO_P( *pdb_method, struct smbpasswd_privates )) ) {
 		DEBUG(0, ("talloc() failed for smbpasswd private_data!\n"));
 		return NT_STATUS_NO_MEMORY;
 	}
@@ -1575,9 +1573,9 @@ static NTSTATUS pdb_init_smbpasswd(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_m
 	/* Store some config details */
 
 	if (location) {
-		privates->smbpasswd_file = talloc_strdup(pdb_context->mem_ctx, location);
+		privates->smbpasswd_file = talloc_strdup(*pdb_method, location);
 	} else {
-		privates->smbpasswd_file = talloc_strdup(pdb_context->mem_ctx, lp_smb_passwd_file());
+		privates->smbpasswd_file = talloc_strdup(*pdb_method, lp_smb_passwd_file());
 	}
 	
 	if (!privates->smbpasswd_file) {
diff --git a/source3/passdb/pdb_tdb.c b/source3/passdb/pdb_tdb.c
index 74f47e70dc..d77f2b3377 100644
--- a/source3/passdb/pdb_tdb.c
+++ b/source3/passdb/pdb_tdb.c
@@ -965,25 +965,21 @@ static void free_private_data(void **vp)
 	/* No need to free any further, as it is talloc()ed */
 }
 
-
-
-
 /**
  * Init tdbsam backend
  *
- * @param pdb_context initialised passdb context
  * @param pdb_method backend methods structure to be filled with function pointers
  * @param location the backend tdb file location
  *
  * @return nt_status code
  **/
 
-static NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
+static NTSTATUS pdb_init_tdbsam(struct pdb_methods **pdb_method, const char *location)
 {
 	NTSTATUS nt_status;
 	struct tdbsam_privates *tdb_state;
 
-	if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
+	if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
 		return nt_status;
 	}
 
@@ -1002,21 +998,19 @@ static NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_meth
 	(*pdb_method)->rid_algorithm = tdbsam_rid_algorithm;
 	(*pdb_method)->new_rid = tdbsam_new_rid;
 
-	tdb_state = TALLOC_ZERO_P(pdb_context->mem_ctx, struct tdbsam_privates);
-
-	if (!tdb_state) {
+	if ( !(tdb_state = TALLOC_ZERO_P( *pdb_method, struct tdbsam_privates)) ) {
 		DEBUG(0, ("talloc() failed for tdbsam private_data!\n"));
 		return NT_STATUS_NO_MEMORY;
 	}
 
 	if (location) {
-		tdb_state->tdbsam_location = talloc_strdup(pdb_context->mem_ctx, location);
+		tdb_state->tdbsam_location = talloc_strdup(*pdb_method, location);
 	} else {
 		pstring tdbfile;
 		get_private_directory(tdbfile);
 		pstrcat(tdbfile, "/");
 		pstrcat(tdbfile, PASSDB_FILE_NAME);
-		tdb_state->tdbsam_location = talloc_strdup(pdb_context->mem_ctx, tdbfile);
+		tdb_state->tdbsam_location = talloc_strdup(*pdb_method, tdbfile);
 	}
 
 	(*pdb_method)->private_data = tdb_state;
diff --git a/source3/utils/pdbedit.c b/source3/utils/pdbedit.c
index 0b17d50ad3..7e29c797cb 100644
--- a/source3/utils/pdbedit.c
+++ b/source3/utils/pdbedit.c
@@ -55,70 +55,6 @@
 #define MASK_USER_GOOD		0x00405FE0
 
 /*********************************************************
- Add all currently available users to another db
- ********************************************************/
-
-static int export_database (struct pdb_context *in, struct pdb_context
-			    *out, const char *username) {
-	SAM_ACCOUNT *user = NULL;
-
-	DEBUG(3, ("called with username=\"%s\"\n", username));
-
-	if (NT_STATUS_IS_ERR(in->pdb_setsampwent(in, 0, 0))) {
-		fprintf(stderr, "Can't sampwent!\n");
-		return 1;
-	}
-
-	if (!NT_STATUS_IS_OK(pdb_init_sam(&user))) {
-		fprintf(stderr, "Can't initialize new SAM_ACCOUNT!\n");
-		return 1;
-	}
-
-	while (NT_STATUS_IS_OK(in->pdb_getsampwent(in, user))) {
-		DEBUG(4, ("Processing account %s\n",
-			  user->private_u.username));
-		if (!username || 
-		    (strcmp(username, user->private_u.username)
-		     == 0)) {
-			out->pdb_add_sam_account(out, user);
-			if (!NT_STATUS_IS_OK(pdb_reset_sam(user))) {
-				fprintf(stderr,
-					"Can't reset SAM_ACCOUNT!\n");
-				return 1;
-			}
-		}
-	}
-
-	in->pdb_endsampwent(in);
-
-	return 0;
-}
-
-/*********************************************************
- Add all currently available group mappings to another db
- ********************************************************/
-
-static int export_groups (struct pdb_context *in, struct pdb_context *out) {
-	GROUP_MAP *maps = NULL;
-	size_t i, entries = 0;
-
-	if (NT_STATUS_IS_ERR(in->pdb_enum_group_mapping(in, SID_NAME_UNKNOWN,
-							&maps, &entries,
-							False))) {
-		fprintf(stderr, "Can't get group mappings!\n");
-		return 1;
-	}
-
-	for (i=0; i<entries; i++) {
-		out->pdb_add_group_mapping_entry(out, &(maps[i]));
-	}
-
-	SAFE_FREE(maps);
-
-	return 0;
-}
-
-/*********************************************************
  Reset account policies to their default values and remove marker
  ********************************************************/
 
@@ -146,38 +82,6 @@ static int reinit_account_policies (void)
 	return 0;
 }
 
-
-/*********************************************************
- Add all currently available account policy from tdb to one backend
- ********************************************************/
-
-static int export_account_policies (struct pdb_context *in, struct pdb_context *out) 
-{
-	int i;
-
-	if (!account_policy_migrated(True)) {
-		fprintf(stderr, "Can't set account policy marker in tdb\n");
-		return -1;
-	}
-
-	for (i=1; decode_account_policy_name(i) != NULL; i++) {
-		uint32 policy_value;
-		if (NT_STATUS_IS_ERR(in->pdb_get_account_policy(in, i, &policy_value))) {
-			fprintf(stderr, "Can't get account policy from tdb\n");
-			remove_account_policy_migrated();
-			return -1;
-		}
-		if (NT_STATUS_IS_ERR(out->pdb_set_account_policy(out, i, policy_value))) {
-			fprintf(stderr, "Can't set account policy in passdb\n");
-			remove_account_policy_migrated();
-			return -1;
-		}
-	}
-
-	return 0;
-}
-
-
 /*********************************************************
  Print info from sam structure
 **********************************************************/
@@ -266,7 +170,7 @@ static int print_sam_info (SAM_ACCOUNT *sam_pwent, BOOL verbosity, BOOL smbpwdst
  Get an Print User Info
 **********************************************************/
 
-static int print_user_info (struct pdb_context *in, const char *username, BOOL verbosity, BOOL smbpwdstyle)
+static int print_user_info (struct pdb_methods *in, const char *username, BOOL verbosity, BOOL smbpwdstyle)
 {
 	SAM_ACCOUNT *sam_pwent=NULL;
 	BOOL ret;
@@ -275,7 +179,7 @@ static int print_user_info (struct pdb_context *in, const char *username, BOOL v
 		return -1;
 	}
 
-	ret = NT_STATUS_IS_OK(in->pdb_getsampwnam (in, sam_pwent, username));
+	ret = NT_STATUS_IS_OK(in->getsampwnam (in, sam_pwent, username));
 
 	if (ret==False) {
 		fprintf (stderr, "Username not found!\n");
@@ -292,12 +196,12 @@ static int print_user_info (struct pdb_context *in, const char *username, BOOL v
 /*********************************************************
  List Users
 **********************************************************/
-static int print_users_list (struct pdb_context *in, BOOL verbosity, BOOL smbpwdstyle)
+static int print_users_list (struct pdb_methods *in, BOOL verbosity, BOOL smbpwdstyle)
 {
 	SAM_ACCOUNT *sam_pwent=NULL;
 	BOOL check;
 	
-	check = NT_STATUS_IS_OK(in->pdb_setsampwent(in, False, 0));
+	check = NT_STATUS_IS_OK(in->setsampwent(in, False, 0));
 	if (!check) {
 		return 1;
 	}
@@ -305,7 +209,7 @@ static int print_users_list (struct pdb_context *in, BOOL verbosity, BOOL smbpwd
 	check = True;
 	if (!(NT_STATUS_IS_OK(pdb_init_sam(&sam_pwent)))) return 1;
 
-	while (check && NT_STATUS_IS_OK(in->pdb_getsampwent (in, sam_pwent))) {
+	while (check && NT_STATUS_IS_OK(in->getsampwent (in, sam_pwent))) {
 		if (verbosity)
 			printf ("---------------\n");
 		print_sam_info (sam_pwent, verbosity, smbpwdstyle);
@@ -314,19 +218,19 @@ static int print_users_list (struct pdb_context *in, BOOL verbosity, BOOL smbpwd
 	}
 	if (check) pdb_free_sam(&sam_pwent);
 	
-	in->pdb_endsampwent(in);
+	in->endsampwent(in);
 	return 0;
 }
 
 /*********************************************************
  Fix a list of Users for uninitialised passwords
 **********************************************************/
-static int fix_users_list (struct pdb_context *in)
+static int fix_users_list (struct pdb_methods *in)
 {
 	SAM_ACCOUNT *sam_pwent=NULL;
 	BOOL check;
 	
-	check = NT_STATUS_IS_OK(in->pdb_setsampwent(in, False, 0));
+	check = NT_STATUS_IS_OK(in->setsampwent(in, False, 0));
 	if (!check) {
 		return 1;
 	}
@@ -334,7 +238,7 @@ static int fix_users_list (struct pdb_context *in)
 	check = True;
 	if (!(NT_STATUS_IS_OK(pdb_init_sam(&sam_pwent)))) return 1;
 
-	while (check && NT_STATUS_IS_OK(in->pdb_getsampwent (in, sam_pwent))) {
+	while (check && NT_STATUS_IS_OK(in->getsampwent (in, sam_pwent))) {
 		printf("Updating record for user %s\n", pdb_get_username(sam_pwent));
 	
 		if (!NT_STATUS_IS_OK(pdb_update_sam_account(sam_pwent))) {
@@ -349,7 +253,7 @@ static int fix_users_list (struct pdb_context *in)
 	}
 	if (check) pdb_free_sam(&sam_pwent);
 	
-	in->pdb_endsampwent(in);
+	in->endsampwent(in);
 	return 0;
 }
 
@@ -357,7 +261,7 @@ static int fix_users_list (struct pdb_context *in)
  Set User Info
 **********************************************************/
 
-static int set_user_info (struct pdb_context *in, const char *username, 
+static int set_user_info (struct pdb_methods *in, const char *username, 
 			  const char *fullname, const char *homedir, 
 			  const char *acct_desc, 
 			  const char *drive, const char *script, 
@@ -373,7 +277,7 @@ static int set_user_info (struct pdb_context *in, const char *username,
 	
 	pdb_init_sam(&sam_pwent);
 	
-	ret = NT_STATUS_IS_OK(in->pdb_getsampwnam (in, sam_pwent, username));
+	ret = NT_STATUS_IS_OK(in->getsampwnam (in, sam_pwent, username));
 	if (ret==False) {
 		fprintf (stderr, "Username not found!\n");
 		pdb_free_sam(&sam_pwent);
@@ -473,7 +377,7 @@ static int set_user_info (struct pdb_context *in, const char *username,
 		pdb_set_bad_password_time(sam_pwent, 0, PDB_CHANGED);
 	}
 
-	if (NT_STATUS_IS_OK(in->pdb_update_sam_account (in, sam_pwent)))
+	if (NT_STATUS_IS_OK(in->update_sam_account (in, sam_pwent)))
 		print_user_info (in, username, True, False);
 	else {
 		fprintf (stderr, "Unable to modify entry!\n");
@@ -487,7 +391,7 @@ static int set_user_info (struct pdb_context *in, const char *username,
 /*********************************************************
  Add New User
 **********************************************************/
-static int new_user (struct pdb_context *in, const char *username,
+static int new_user (struct pdb_methods *in, const char *username,
 			const char *fullname, const char *homedir,
 			const char *drive, const char *script,
 			const char *profile, char *user_sid, char *group_sid)
@@ -568,7 +472,7 @@ static int new_user (struct pdb_context *in, const char *username,
 	
 	pdb_set_acct_ctrl (sam_pwent, ACB_NORMAL, PDB_CHANGED);
 	
-	if (NT_STATUS_IS_OK(in->pdb_add_sam_account (in, sam_pwent))) { 
+	if (NT_STATUS_IS_OK(in->add_sam_account (in, sam_pwent))) { 
 		print_user_info (in, username, True, False);
 	} else {
 		fprintf (stderr, "Unable to add user! (does it already exist?)\n");
@@ -583,7 +487,7 @@ static int new_user (struct pdb_context *in, const char *username,
  Add New Machine
 **********************************************************/
 
-static int new_machine (struct pdb_context *in, const char *machine_in)
+static int new_machine (struct pdb_methods *in, const char *machine_in)
 {
 	SAM_ACCOUNT *sam_pwent=NULL;
 	fstring machinename;
@@ -625,7 +529,7 @@ static int new_machine (struct pdb_context *in, const char *machine_in)
 	
 	pdb_set_group_sid_from_rid(sam_pwent, DOMAIN_GROUP_RID_COMPUTERS, PDB_CHANGED);
 	
-	if (NT_STATUS_IS_OK(in->pdb_add_sam_account (in, sam_pwent))) {
+	if (NT_STATUS_IS_OK(in->add_sam_account (in, sam_pwent))) {
 		print_user_info (in, machineaccount, True, False);
 	} else {
 		fprintf (stderr, "Unable to add machine! (does it already exist?)\n");
@@ -640,7 +544,7 @@ static int new_machine (struct pdb_context *in, const char *machine_in)
  Delete user entry
 **********************************************************/
 
-static int delete_user_entry (struct pdb_context *in, const char *username)
+static int delete_user_entry (struct pdb_methods *in, const char *username)
 {
 	SAM_ACCOUNT *samaccount = NULL;
 
@@ -648,12 +552,12 @@ static int delete_user_entry (struct pdb_context *in, const char *username)
 		return -1;
 	}
 
-	if (!NT_STATUS_IS_OK(in->pdb_getsampwnam(in, samaccount, username))) {
+	if (!NT_STATUS_IS_OK(in->getsampwnam(in, samaccount, username))) {
 		fprintf (stderr, "user %s does not exist in the passdb\n", username);
 		return -1;
 	}
 
-	if (!NT_STATUS_IS_OK(in->pdb_delete_sam_account (in, samaccount))) {
+	if (!NT_STATUS_IS_OK(in->delete_sam_account (in, samaccount))) {
 		fprintf (stderr, "Unable to delete user %s\n", username);
 		return -1;
 	}
@@ -664,7 +568,7 @@ static int delete_user_entry (struct pdb_context *in, const char *username)
  Delete machine entry
 **********************************************************/
 
-static int delete_machine_entry (struct pdb_context *in, const char *machinename)
+static int delete_machine_entry (struct pdb_methods *in, const char *machinename)
 {
 	fstring name;
 	SAM_ACCOUNT *samaccount = NULL;
@@ -678,12 +582,12 @@ static int delete_machine_entry (struct pdb_context *in, const char *machinename
 		return -1;
 	}
 
-	if (!NT_STATUS_IS_OK(in->pdb_getsampwnam(in, samaccount, name))) {
+	if (!NT_STATUS_IS_OK(in->getsampwnam(in, samaccount, name))) {
 		fprintf (stderr, "machine %s does not exist in the passdb\n", name);
 		return -1;
 	}
 
-	if (!NT_STATUS_IS_OK(in->pdb_delete_sam_account (in, samaccount))) {
+	if (!NT_STATUS_IS_OK(in->delete_sam_account (in, samaccount))) {
 		fprintf (stderr, "Unable to delete machine %s\n", name);
 		return -1;
 	}
@@ -733,9 +637,7 @@ int main (int argc, char **argv)
 	static char *pwd_must_change_time = NULL;
 	static char *pwd_time_format = NULL;
 
-	struct pdb_context *bin;
-	struct pdb_context *bout;
-	struct pdb_context *bdef;
+	struct pdb_methods *bdef = NULL;
 	poptContext pc;
 	struct poptOption long_options[] = {
 		POPT_AUTOHELP
@@ -835,12 +737,12 @@ int main (int argc, char **argv)
 			(pwd_must_change_time ? BIT_MUST_CHANGE: 0);
 
 	if (setparms & BIT_BACKEND) {
-		if (!NT_STATUS_IS_OK(make_pdb_context_string(&bdef, backend))) {
+		if (!NT_STATUS_IS_OK(make_pdb_method_name( &bdef, backend ))) {
 			fprintf(stderr, "Can't initialize passdb backend.\n");
 			return 1;
 		}
 	} else {
-		if (!NT_STATUS_IS_OK(make_pdb_context_list(&bdef, lp_passdb_backend()))) {
+		if (!NT_STATUS_IS_OK(make_pdb_method_name(&bdef, lp_passdb_backend()))) {
 			fprintf(stderr, "Can't initialize passdb backend.\n");
 			return 1;
 		}
@@ -894,41 +796,6 @@ int main (int argc, char **argv)
 		exit(0);
 	}
 
-	/* import and export operations */
-	if (((checkparms & BIT_IMPORT) || (checkparms & BIT_EXPORT))
-	    && !(checkparms & ~(BIT_IMPORT +BIT_EXPORT +BIT_USER))) {
-		if (backend_in) {
-			if (!NT_STATUS_IS_OK(make_pdb_context_string(&bin, backend_in))) {
-				fprintf(stderr, "Can't initialize passdb backend.\n");
-				return 1;
-			}
-		} else {
-			bin = bdef;
-		}
-		if (backend_out) {
-			if (!NT_STATUS_IS_OK(make_pdb_context_string(&bout, backend_out))) {
-				fprintf(stderr, "Can't initialize %s.\n", backend_out);
-				return 1;
-			}
-		} else {
-			bout = bdef;
-		}
-		if (transfer_account_policies) {
-			if (!(checkparms & BIT_USER))
-				return export_account_policies(bin, bout);
-		} else 	if (transfer_groups) {
-			if (!(checkparms & BIT_USER))
-				return export_groups(bin, bout);
-		} else {
-			if (checkparms & BIT_USER)
-				return export_database(bin, bout,
-						       user_name);
-			else
-				return export_database(bin, bout,
-						       NULL);
-		}
-	}
-
 	/* if BIT_USER is defined but nothing else then threat it as -l -u for compatibility */
 	/* fake up BIT_LIST if only BIT_USER is defined */
 	if ((checkparms & BIT_USER) && !(checkparms & ~BIT_USER)) {