r22135: Check in most of Michael Adam's net conf utility. A good share of this patch

is moving functions around to fix some linker dependencies for the registry.

Michael, I've renamed your auth_utils2.c to token_utils.c.

Thanks!

Volker
(This used to be commit 9de16f25c1c3e0b203da47391772ef2e2fe291ac)

2 files changed, 458 insertions, 432 deletions

diff --git a/source3/auth/auth_util.c b/source3/auth/auth_util.c
index 7891ce1599..0de3bf2325 100644
--- a/source3/auth/auth_util.c
+++ b/source3/auth/auth_util.c
@@ -27,12 +27,6 @@
 #undef DBGC_CLASS
 #define DBGC_CLASS DBGC_AUTH
 
-static struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
-						   const DOM_SID *user_sid,
-						   BOOL is_guest,
-						   int num_groupsids,
-						   const DOM_SID *groupsids);
-
 /****************************************************************************
  Create a UNIX user on demand.
 ****************************************************************************/
@@ -481,38 +475,6 @@ void debug_unix_user_token(int dbg_class, int dbg_lev, uid_t uid, gid_t gid,
 			(long int)groups[i]));
 }
 
-/******************************************************************************
- Create a token for the root user to be used internally by smbd.
- This is similar to running under the context of the LOCAL_SYSTEM account
- in Windows.  This is a read-only token.  Do not modify it or free() it.
- Create a copy if your need to change it.
-******************************************************************************/
-
-NT_USER_TOKEN *get_root_nt_token( void )
-{
-	static NT_USER_TOKEN *token = NULL;
-	DOM_SID u_sid, g_sid;
-	struct passwd *pw;
-	
-	if ( token )
-		return token;
-
-	if ( !(pw = sys_getpwnam( "root" )) ) {
-		DEBUG(0,("get_root_nt_token: getpwnam\"root\") failed!\n"));
-		return NULL;
-	}
-	
-	/* get the user and primary group SIDs; although the 
-	   BUILTIN\Administrators SId is really the one that matters here */
-	   
-	uid_to_sid(&u_sid, pw->pw_uid);
-	gid_to_sid(&g_sid, pw->pw_gid);
-
-	token = create_local_nt_token(NULL, &u_sid, False,
-				      1, &global_sid_Builtin_Administrators);
-	return token;
-}
-
 static int server_info_dtor(auth_serversupplied_info *server_info)
 {
 	TALLOC_FREE(server_info->sam_account);
@@ -631,53 +593,6 @@ NTSTATUS make_server_info_sam(auth_serversupplied_info **server_info,
 	return NT_STATUS_OK;
 }
 
-/*
- * Add alias SIDs from memberships within the partially created token SID list
- */
-
-static NTSTATUS add_aliases(const DOM_SID *domain_sid,
-			    struct nt_user_token *token)
-{
-	uint32 *aliases;
-	size_t i, num_aliases;
-	NTSTATUS status;
-	TALLOC_CTX *tmp_ctx;
-
-	if (!(tmp_ctx = talloc_init("add_aliases"))) {
-		return NT_STATUS_NO_MEMORY;
-	}
-
-	aliases = NULL;
-	num_aliases = 0;
-
-	status = pdb_enum_alias_memberships(tmp_ctx, domain_sid,
-					    token->user_sids,
-					    token->num_sids,
-					    &aliases, &num_aliases);
-
-	if (!NT_STATUS_IS_OK(status)) {
-		DEBUG(10, ("pdb_enum_alias_memberships failed: %s\n",
-			   nt_errstr(status)));
-		TALLOC_FREE(tmp_ctx);
-		return status;
-	}
-
-	for (i=0; i<num_aliases; i++) {
-		DOM_SID alias_sid;
-		sid_compose(&alias_sid, domain_sid, aliases[i]);
-		if (!add_sid_to_array_unique(token, &alias_sid,
-					&token->user_sids,
-					&token->num_sids)) {
-			DEBUG(0, ("add_sid_to_array failed\n"));
-			TALLOC_FREE(tmp_ctx);
-			return NT_STATUS_NO_MEMORY;
-		}
-	}
-
-	TALLOC_FREE(tmp_ctx);
-	return NT_STATUS_OK;
-}
-
 static NTSTATUS log_nt_token(TALLOC_CTX *tmp_ctx, NT_USER_TOKEN *token)
 {
 	char *command;
@@ -714,270 +629,6 @@ static NTSTATUS log_nt_token(TALLOC_CTX *tmp_ctx, NT_USER_TOKEN *token)
 	return NT_STATUS_OK;
 }
 
-/*******************************************************************
-*******************************************************************/
-
-static NTSTATUS add_builtin_administrators( struct nt_user_token *token )
-{
-	DOM_SID domadm;
-
-	/* nothing to do if we aren't in a domain */
-	
-	if ( !(IS_DC || lp_server_role()==ROLE_DOMAIN_MEMBER) ) {
-		return NT_STATUS_OK;
-	}
-	
-	/* Find the Domain Admins SID */
-	
-	if ( IS_DC ) {
-		sid_copy( &domadm, get_global_sam_sid() );
-	} else {
-		if ( !secrets_fetch_domain_sid( lp_workgroup(), &domadm ) )
-			return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
-	}
-	sid_append_rid( &domadm, DOMAIN_GROUP_RID_ADMINS );
-	
-	/* Add Administrators if the user beloongs to Domain Admins */
-	
-	if ( nt_token_check_sid( &domadm, token ) ) {
-		if (!add_sid_to_array(token, &global_sid_Builtin_Administrators,
-					 &token->user_sids, &token->num_sids)) {
-			return NT_STATUS_NO_MEMORY;
-		}
-	}
-	
-	return NT_STATUS_OK;
-}
-
-/*******************************************************************
-*******************************************************************/
-
-static NTSTATUS create_builtin_users( void )
-{
-	NTSTATUS status;
-	DOM_SID dom_users;
-
-	status = pdb_create_builtin_alias( BUILTIN_ALIAS_RID_USERS );
-	if ( !NT_STATUS_IS_OK(status) ) {
-		DEBUG(0,("create_builtin_users: Failed to create Users\n"));
-		return status;
-	}
-	
-	/* add domain users */
-	if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER)) 
-		&& secrets_fetch_domain_sid(lp_workgroup(), &dom_users))
-	{
-		sid_append_rid(&dom_users, DOMAIN_GROUP_RID_USERS );
-		status = pdb_add_aliasmem( &global_sid_Builtin_Users, &dom_users);
-		if ( !NT_STATUS_IS_OK(status) ) {
-			DEBUG(0,("create_builtin_users: Failed to add Domain Users to"
-				" Users\n"));
-			return status;
-		}
-	}
-			
-	return NT_STATUS_OK;
-}		
-
-/*******************************************************************
-*******************************************************************/
-
-static NTSTATUS create_builtin_administrators( void )
-{
-	NTSTATUS status;
-	DOM_SID dom_admins, root_sid;
-	fstring root_name;
-	enum lsa_SidType type;		
-	TALLOC_CTX *ctx;
-	BOOL ret;
-
-	status = pdb_create_builtin_alias( BUILTIN_ALIAS_RID_ADMINS );
-	if ( !NT_STATUS_IS_OK(status) ) {
-		DEBUG(0,("create_builtin_administrators: Failed to create Administrators\n"));
-		return status;
-	}
-	
-	/* add domain admins */
-	if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER)) 
-		&& secrets_fetch_domain_sid(lp_workgroup(), &dom_admins))
-	{
-		sid_append_rid(&dom_admins, DOMAIN_GROUP_RID_ADMINS);
-		status = pdb_add_aliasmem( &global_sid_Builtin_Administrators, &dom_admins );
-		if ( !NT_STATUS_IS_OK(status) ) {
-			DEBUG(0,("create_builtin_administrators: Failed to add Domain Admins"
-				" Administrators\n"));
-			return status;
-		}
-	}
-			
-	/* add root */
-	if ( (ctx = talloc_init("create_builtin_administrators")) == NULL ) {
-		return NT_STATUS_NO_MEMORY;
-	}
-	fstr_sprintf( root_name, "%s\\root", get_global_sam_name() );
-	ret = lookup_name( ctx, root_name, 0, NULL, NULL, &root_sid, &type );
-	TALLOC_FREE( ctx );
-
-	if ( ret ) {
-		status = pdb_add_aliasmem( &global_sid_Builtin_Administrators, &root_sid );
-		if ( !NT_STATUS_IS_OK(status) ) {
-			DEBUG(0,("create_builtin_administrators: Failed to add root"
-				" Administrators\n"));
-			return status;
-		}
-	}
-	
-	return NT_STATUS_OK;
-}		
-
-/*******************************************************************
- Create a NT token for the user, expanding local aliases
-*******************************************************************/
-
-static struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
-						   const DOM_SID *user_sid,
-						   BOOL is_guest,
-						   int num_groupsids,
-						   const DOM_SID *groupsids)
-{
-	struct nt_user_token *result = NULL;
-	int i;
-	NTSTATUS status;
-	gid_t gid;
-
-	DEBUG(10, ("Create local NT token for %s\n", sid_string_static(user_sid)));
-
-	if (!(result = TALLOC_ZERO_P(mem_ctx, NT_USER_TOKEN))) {
-		DEBUG(0, ("talloc failed\n"));
-		return NULL;
-	}
-
-	/* Add the user and primary group sid */
-
-	if (!add_sid_to_array(result, user_sid,
-			 &result->user_sids, &result->num_sids)) {
-		return NULL;
-	}
-
-	/* For guest, num_groupsids may be zero. */
-	if (num_groupsids) {
-		if (!add_sid_to_array(result, &groupsids[0],
-				 &result->user_sids, &result->num_sids)) {
-			return NULL;
-		}
-	}
-			 
-	/* Add in BUILTIN sids */
-	
-	if (!add_sid_to_array(result, &global_sid_World,
-			 &result->user_sids, &result->num_sids)) {
-		return NULL;
-	}
-	if (!add_sid_to_array(result, &global_sid_Network,
-			 &result->user_sids, &result->num_sids)) {
-		return NULL;
-	}
-
-	if (is_guest) {
-		if (!add_sid_to_array(result, &global_sid_Builtin_Guests,
-				 &result->user_sids, &result->num_sids)) {
-			return NULL;
-		}
-	} else {
-		if (!add_sid_to_array(result, &global_sid_Authenticated_Users,
-				 &result->user_sids, &result->num_sids)) {
-			return NULL;
-		}
-	}
-	
-	/* Now the SIDs we got from authentication. These are the ones from
-	 * the info3 struct or from the pdb_enum_group_memberships, depending
-	 * on who authenticated the user.
-	 * Note that we start the for loop at "1" here, we already added the
-	 * first group sid as primary above. */
-
-	for (i=1; i<num_groupsids; i++) {
-		if (!add_sid_to_array_unique(result, &groupsids[i],
-					&result->user_sids, &result->num_sids)) {
-			return NULL;
-		}
-	}
-	
-	/* Deal with the BUILTIN\Administrators group.  If the SID can
-	   be resolved then assume that the add_aliasmem( S-1-5-32 ) 
-	   handled it. */
-
-	if ( !sid_to_gid( &global_sid_Builtin_Administrators, &gid ) ) {
-		/* We can only create a mapping if winbind is running 
-		   and the nested group functionality has been enabled */
-		   
-		if ( lp_winbind_nested_groups() && winbind_ping() ) {
-			become_root();
-			status = create_builtin_administrators( );
-			if ( !NT_STATUS_IS_OK(status) ) {
-				DEBUG(2,("create_local_nt_token: Failed to create BUILTIN\\Administrators group!\n"));
-				/* don't fail, just log the message */
-			}
-			unbecome_root();
-		}
-		else {
-			status = add_builtin_administrators( result );
-			if ( !NT_STATUS_IS_OK(status) ) {
-				/* just log a complaint but do not fail */
-				DEBUG(3,("create_local_nt_token: failed to check for local Administrators"
-					" membership (%s)\n", nt_errstr(status)));
-			}			
-		}		
-	}
-
-	/* Deal with the BUILTIN\Users group.  If the SID can
-	   be resolved then assume that the add_aliasmem( S-1-5-32 ) 
-	   handled it. */
-
-	if ( !sid_to_gid( &global_sid_Builtin_Users, &gid ) ) {
-		/* We can only create a mapping if winbind is running 
-		   and the nested group functionality has been enabled */
-		   
-		if ( lp_winbind_nested_groups() && winbind_ping() ) {
-			become_root();
-			status = create_builtin_users( );
-			if ( !NT_STATUS_IS_OK(status) ) {
-				DEBUG(2,("create_local_nt_token: Failed to create BUILTIN\\Users group!\n"));
-				/* don't fail, just log the message */
-			}
-			unbecome_root();
-		}
-	}
-
-	/* Deal with local groups */
-	
-	if (lp_winbind_nested_groups()) {
-
-		/* Now add the aliases. First the one from our local SAM */
-
-		status = add_aliases(get_global_sam_sid(), result);
-
-		if (!NT_STATUS_IS_OK(status)) {
-			TALLOC_FREE(result);
-			return NULL;
-		}
-
-		/* Finally the builtin ones */
-
-		status = add_aliases(&global_sid_Builtin, result);
-
-		if (!NT_STATUS_IS_OK(status)) {
-			TALLOC_FREE(result);
-			return NULL;
-		}
-	} 
-
-
-	get_privileges_for_sids(&result->privileges, result->user_sids,
-				result->num_sids);
-	return result;
-}
-
 /*
  * Create the token to use from server_info->sam_account and
  * server_info->sids (the info3/sam groups). Find the unix gids.
@@ -2039,89 +1690,6 @@ BOOL make_auth_methods(struct auth_context *auth_context, auth_methods **auth_me
 	return True;
 }
 
-/****************************************************************************
- Duplicate a SID token.
-****************************************************************************/
-
-NT_USER_TOKEN *dup_nt_token(TALLOC_CTX *mem_ctx, const NT_USER_TOKEN *ptoken)
-{
-	NT_USER_TOKEN *token;
-
-	if (!ptoken)
-		return NULL;
-
-	token = TALLOC_P(mem_ctx, NT_USER_TOKEN);
-	if (token == NULL) {
-		DEBUG(0, ("talloc failed\n"));
-		return NULL;
-	}
-
-	ZERO_STRUCTP(token);
-
-	if (ptoken->user_sids && ptoken->num_sids) {
-		token->user_sids = (DOM_SID *)talloc_memdup(
-			token, ptoken->user_sids, sizeof(DOM_SID) * ptoken->num_sids );
-
-		if (token->user_sids == NULL) {
-			DEBUG(0, ("talloc_memdup failed\n"));
-			TALLOC_FREE(token);
-			return NULL;
-		}
-		token->num_sids = ptoken->num_sids;
-	}
-	
-	/* copy the privileges; don't consider failure to be critical here */
-	
-	if ( !se_priv_copy( &token->privileges, &ptoken->privileges ) ) {
-		DEBUG(0,("dup_nt_token: Failure to copy SE_PRIV!.  "
-			 "Continuing with 0 privileges assigned.\n"));
-	}
-
-	return token;
-}
-
-/****************************************************************************
- Check for a SID in an NT_USER_TOKEN
-****************************************************************************/
-
-BOOL nt_token_check_sid ( const DOM_SID *sid, const NT_USER_TOKEN *token )
-{
-	int i;
-	
-	if ( !sid || !token )
-		return False;
-	
-	for ( i=0; i<token->num_sids; i++ ) {
-		if ( sid_equal( sid, &token->user_sids[i] ) )
-			return True;
-	}
-
-	return False;
-}
-
-BOOL nt_token_check_domain_rid( NT_USER_TOKEN *token, uint32 rid ) 
-{
-	DOM_SID domain_sid;
-
-	/* if we are a domain member, the get the domain SID, else for 
-	   a DC or standalone server, use our own SID */
-
-	if ( lp_server_role() == ROLE_DOMAIN_MEMBER ) {
-		if ( !secrets_fetch_domain_sid( lp_workgroup(),
-						&domain_sid ) ) {
-			DEBUG(1,("nt_token_check_domain_rid: Cannot lookup "
-				 "SID for domain [%s]\n", lp_workgroup()));
-			return False;
-		}
-	} 
-	else
-		sid_copy( &domain_sid, get_global_sam_sid() );
-
-	sid_append_rid( &domain_sid, rid );
-	
-	return nt_token_check_sid( &domain_sid, token );\
-}
-
 /**
  * Verify whether or not given domain is trusted.
  *
diff --git a/source3/auth/token_util.c b/source3/auth/token_util.c
new file mode 100644
index 0000000000..1eb9d12ab5
--- /dev/null
+++ b/source3/auth/token_util.c
@@ -0,0 +1,458 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *  Authentication utility functions
+ *  Copyright (C) Andrew Tridgell 1992-1998
+ *  Copyright (C) Andrew Bartlett 2001
+ *  Copyright (C) Jeremy Allison 2000-2001
+ *  Copyright (C) Rafal Szczesniak 2002
+ *  Copyright (C) Volker Lendecke 2006
+ *  Copyright (C) Michael Adam 2007
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *  
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* functions moved from auth/auth_util.c to minimize linker deps */
+
+#include "includes.h"
+
+/****************************************************************************
+ Duplicate a SID token.
+****************************************************************************/
+
+NT_USER_TOKEN *dup_nt_token(TALLOC_CTX *mem_ctx, const NT_USER_TOKEN *ptoken)
+{
+	NT_USER_TOKEN *token;
+
+	if (!ptoken)
+		return NULL;
+
+	token = TALLOC_P(mem_ctx, NT_USER_TOKEN);
+	if (token == NULL) {
+		DEBUG(0, ("talloc failed\n"));
+		return NULL;
+	}
+
+	ZERO_STRUCTP(token);
+
+	if (ptoken->user_sids && ptoken->num_sids) {
+		token->user_sids = (DOM_SID *)talloc_memdup(
+			token, ptoken->user_sids, sizeof(DOM_SID) * ptoken->num_sids );
+
+		if (token->user_sids == NULL) {
+			DEBUG(0, ("talloc_memdup failed\n"));
+			TALLOC_FREE(token);
+			return NULL;
+		}
+		token->num_sids = ptoken->num_sids;
+	}
+	
+	/* copy the privileges; don't consider failure to be critical here */
+	
+	if ( !se_priv_copy( &token->privileges, &ptoken->privileges ) ) {
+		DEBUG(0,("dup_nt_token: Failure to copy SE_PRIV!.  "
+			 "Continuing with 0 privileges assigned.\n"));
+	}
+
+	return token;
+}
+
+/****************************************************************************
+ Check for a SID in an NT_USER_TOKEN
+****************************************************************************/
+
+BOOL nt_token_check_sid ( const DOM_SID *sid, const NT_USER_TOKEN *token )
+{
+	int i;
+	
+	if ( !sid || !token )
+		return False;
+	
+	for ( i=0; i<token->num_sids; i++ ) {
+		if ( sid_equal( sid, &token->user_sids[i] ) )
+			return True;
+	}
+
+	return False;
+}
+
+BOOL nt_token_check_domain_rid( NT_USER_TOKEN *token, uint32 rid ) 
+{
+	DOM_SID domain_sid;
+
+	/* if we are a domain member, the get the domain SID, else for 
+	   a DC or standalone server, use our own SID */
+
+	if ( lp_server_role() == ROLE_DOMAIN_MEMBER ) {
+		if ( !secrets_fetch_domain_sid( lp_workgroup(),
+						&domain_sid ) ) {
+			DEBUG(1,("nt_token_check_domain_rid: Cannot lookup "
+				 "SID for domain [%s]\n", lp_workgroup()));
+			return False;
+		}
+	} 
+	else
+		sid_copy( &domain_sid, get_global_sam_sid() );
+
+	sid_append_rid( &domain_sid, rid );
+	
+	return nt_token_check_sid( &domain_sid, token );\
+}
+
+/******************************************************************************
+ Create a token for the root user to be used internally by smbd.
+ This is similar to running under the context of the LOCAL_SYSTEM account
+ in Windows.  This is a read-only token.  Do not modify it or free() it.
+ Create a copy if your need to change it.
+******************************************************************************/
+
+NT_USER_TOKEN *get_root_nt_token( void )
+{
+	static NT_USER_TOKEN *token = NULL;
+	DOM_SID u_sid, g_sid;
+	struct passwd *pw;
+	
+	if ( token )
+		return token;
+
+	if ( !(pw = sys_getpwnam( "root" )) ) {
+		DEBUG(0,("get_root_nt_token: getpwnam\"root\") failed!\n"));
+		return NULL;
+	}
+	
+	/* get the user and primary group SIDs; although the 
+	   BUILTIN\Administrators SId is really the one that matters here */
+	   
+	uid_to_sid(&u_sid, pw->pw_uid);
+	gid_to_sid(&g_sid, pw->pw_gid);
+
+	token = create_local_nt_token(NULL, &u_sid, False,
+				      1, &global_sid_Builtin_Administrators);
+	return token;
+}
+
+
+/*
+ * Add alias SIDs from memberships within the partially created token SID list
+ */
+
+static NTSTATUS add_aliases(const DOM_SID *domain_sid,
+			    struct nt_user_token *token)
+{
+	uint32 *aliases;
+	size_t i, num_aliases;
+	NTSTATUS status;
+	TALLOC_CTX *tmp_ctx;
+
+	if (!(tmp_ctx = talloc_init("add_aliases"))) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	aliases = NULL;
+	num_aliases = 0;
+
+	status = pdb_enum_alias_memberships(tmp_ctx, domain_sid,
+					    token->user_sids,
+					    token->num_sids,
+					    &aliases, &num_aliases);
+
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(10, ("pdb_enum_alias_memberships failed: %s\n",
+			   nt_errstr(status)));
+		TALLOC_FREE(tmp_ctx);
+		return status;
+	}
+
+	for (i=0; i<num_aliases; i++) {
+		DOM_SID alias_sid;
+		sid_compose(&alias_sid, domain_sid, aliases[i]);
+		if (!add_sid_to_array_unique(token, &alias_sid,
+					&token->user_sids,
+					&token->num_sids)) {
+			DEBUG(0, ("add_sid_to_array failed\n"));
+			TALLOC_FREE(tmp_ctx);
+			return NT_STATUS_NO_MEMORY;
+		}
+	}
+
+	TALLOC_FREE(tmp_ctx);
+	return NT_STATUS_OK;
+}
+
+/*******************************************************************
+*******************************************************************/
+
+static NTSTATUS add_builtin_administrators( struct nt_user_token *token )
+{
+	DOM_SID domadm;
+
+	/* nothing to do if we aren't in a domain */
+	
+	if ( !(IS_DC || lp_server_role()==ROLE_DOMAIN_MEMBER) ) {
+		return NT_STATUS_OK;
+	}
+	
+	/* Find the Domain Admins SID */
+	
+	if ( IS_DC ) {
+		sid_copy( &domadm, get_global_sam_sid() );
+	} else {
+		if ( !secrets_fetch_domain_sid( lp_workgroup(), &domadm ) )
+			return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+	}
+	sid_append_rid( &domadm, DOMAIN_GROUP_RID_ADMINS );
+	
+	/* Add Administrators if the user beloongs to Domain Admins */
+	
+	if ( nt_token_check_sid( &domadm, token ) ) {
+		if (!add_sid_to_array(token, &global_sid_Builtin_Administrators,
+					 &token->user_sids, &token->num_sids)) {
+			return NT_STATUS_NO_MEMORY;
+		}
+	}
+	
+	return NT_STATUS_OK;
+}
+
+/*******************************************************************
+*******************************************************************/
+
+static NTSTATUS create_builtin_users( void )
+{
+	NTSTATUS status;
+	DOM_SID dom_users;
+
+	status = pdb_create_builtin_alias( BUILTIN_ALIAS_RID_USERS );
+	if ( !NT_STATUS_IS_OK(status) ) {
+		DEBUG(0,("create_builtin_users: Failed to create Users\n"));
+		return status;
+	}
+	
+	/* add domain users */
+	if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER)) 
+		&& secrets_fetch_domain_sid(lp_workgroup(), &dom_users))
+	{
+		sid_append_rid(&dom_users, DOMAIN_GROUP_RID_USERS );
+		status = pdb_add_aliasmem( &global_sid_Builtin_Users, &dom_users);
+		if ( !NT_STATUS_IS_OK(status) ) {
+			DEBUG(0,("create_builtin_administrators: Failed to add Domain Users to"
+				" Users\n"));
+			return status;
+		}
+	}
+			
+	return NT_STATUS_OK;
+}		
+
+/*******************************************************************
+*******************************************************************/
+
+static NTSTATUS create_builtin_administrators( void )
+{
+	NTSTATUS status;
+	DOM_SID dom_admins, root_sid;
+	fstring root_name;
+	enum lsa_SidType type;		
+	TALLOC_CTX *ctx;
+	BOOL ret;
+
+	status = pdb_create_builtin_alias( BUILTIN_ALIAS_RID_ADMINS );
+	if ( !NT_STATUS_IS_OK(status) ) {
+		DEBUG(0,("create_builtin_administrators: Failed to create Administrators\n"));
+		return status;
+	}
+	
+	/* add domain admins */
+	if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER)) 
+		&& secrets_fetch_domain_sid(lp_workgroup(), &dom_admins))
+	{
+		sid_append_rid(&dom_admins, DOMAIN_GROUP_RID_ADMINS);
+		status = pdb_add_aliasmem( &global_sid_Builtin_Administrators, &dom_admins );
+		if ( !NT_STATUS_IS_OK(status) ) {
+			DEBUG(0,("create_builtin_administrators: Failed to add Domain Admins"
+				" Administrators\n"));
+			return status;
+		}
+	}
+			
+	/* add root */
+	if ( (ctx = talloc_init("create_builtin_administrators")) == NULL ) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	fstr_sprintf( root_name, "%s\\root", get_global_sam_name() );
+	ret = lookup_name( ctx, root_name, 0, NULL, NULL, &root_sid, &type );
+	TALLOC_FREE( ctx );
+
+	if ( ret ) {
+		status = pdb_add_aliasmem( &global_sid_Builtin_Administrators, &root_sid );
+		if ( !NT_STATUS_IS_OK(status) ) {
+			DEBUG(0,("create_builtin_administrators: Failed to add root"
+				" Administrators\n"));
+			return status;
+		}
+	}
+	
+	return NT_STATUS_OK;
+}		
+
+
+/*******************************************************************
+ Create a NT token for the user, expanding local aliases
+*******************************************************************/
+
+struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
+					    const DOM_SID *user_sid,
+					    BOOL is_guest,
+					    int num_groupsids,
+					    const DOM_SID *groupsids)
+{
+	struct nt_user_token *result = NULL;
+	int i;
+	NTSTATUS status;
+	gid_t gid;
+
+	DEBUG(10, ("Create local NT token for %s\n", sid_string_static(user_sid)));
+
+	if (!(result = TALLOC_ZERO_P(mem_ctx, NT_USER_TOKEN))) {
+		DEBUG(0, ("talloc failed\n"));
+		return NULL;
+	}
+
+	/* Add the user and primary group sid */
+
+	if (!add_sid_to_array(result, user_sid,
+			 &result->user_sids, &result->num_sids)) {
+		return NULL;
+	}
+
+	/* For guest, num_groupsids may be zero. */
+	if (num_groupsids) {
+		if (!add_sid_to_array(result, &groupsids[0],
+				 &result->user_sids, &result->num_sids)) {
+			return NULL;
+		}
+	}
+			 
+	/* Add in BUILTIN sids */
+	
+	if (!add_sid_to_array(result, &global_sid_World,
+			 &result->user_sids, &result->num_sids)) {
+		return NULL;
+	}
+	if (!add_sid_to_array(result, &global_sid_Network,
+			 &result->user_sids, &result->num_sids)) {
+		return NULL;
+	}
+
+	if (is_guest) {
+		if (!add_sid_to_array(result, &global_sid_Builtin_Guests,
+				 &result->user_sids, &result->num_sids)) {
+			return NULL;
+		}
+	} else {
+		if (!add_sid_to_array(result, &global_sid_Authenticated_Users,
+				 &result->user_sids, &result->num_sids)) {
+			return NULL;
+		}
+	}
+	
+	/* Now the SIDs we got from authentication. These are the ones from
+	 * the info3 struct or from the pdb_enum_group_memberships, depending
+	 * on who authenticated the user.
+	 * Note that we start the for loop at "1" here, we already added the
+	 * first group sid as primary above. */
+
+	for (i=1; i<num_groupsids; i++) {
+		if (!add_sid_to_array_unique(result, &groupsids[i],
+					&result->user_sids, &result->num_sids)) {
+			return NULL;
+		}
+	}
+	
+	/* Deal with the BUILTIN\Administrators group.  If the SID can
+	   be resolved then assume that the add_aliasmem( S-1-5-32 ) 
+	   handled it. */
+
+	if ( !sid_to_gid( &global_sid_Builtin_Administrators, &gid ) ) {
+		/* We can only create a mapping if winbind is running 
+		   and the nested group functionality has been enabled */
+		   
+		if ( lp_winbind_nested_groups() && winbind_ping() ) {
+			become_root();
+			status = create_builtin_administrators( );
+			if ( !NT_STATUS_IS_OK(status) ) {
+				DEBUG(2,("create_local_nt_token: Failed to create BUILTIN\\Administrators group!\n"));
+				/* don't fail, just log the message */
+			}
+			unbecome_root();
+		}
+		else {
+			status = add_builtin_administrators( result );
+			if ( !NT_STATUS_IS_OK(status) ) {
+				/* just log a complaint but do not fail */
+				DEBUG(3,("create_local_nt_token: failed to check for local Administrators"
+					" membership (%s)\n", nt_errstr(status)));
+			}			
+		}		
+	}
+
+	/* Deal with the BUILTIN\Users group.  If the SID can
+	   be resolved then assume that the add_aliasmem( S-1-5-32 ) 
+	   handled it. */
+
+	if ( !sid_to_gid( &global_sid_Builtin_Users, &gid ) ) {
+		/* We can only create a mapping if winbind is running 
+		   and the nested group functionality has been enabled */
+		   
+		if ( lp_winbind_nested_groups() && winbind_ping() ) {
+			become_root();
+			status = create_builtin_users( );
+			if ( !NT_STATUS_IS_OK(status) ) {
+				DEBUG(2,("create_local_nt_token: Failed to create BUILTIN\\Users group!\n"));
+				/* don't fail, just log the message */
+			}
+			unbecome_root();
+		}
+	}
+
+	/* Deal with local groups */
+	
+	if (lp_winbind_nested_groups()) {
+
+		/* Now add the aliases. First the one from our local SAM */
+
+		status = add_aliases(get_global_sam_sid(), result);
+
+		if (!NT_STATUS_IS_OK(status)) {
+			TALLOC_FREE(result);
+			return NULL;
+		}
+
+		/* Finally the builtin ones */
+
+		status = add_aliases(&global_sid_Builtin, result);
+
+		if (!NT_STATUS_IS_OK(status)) {
+			TALLOC_FREE(result);
+			return NULL;
+		}
+	} 
+
+
+	get_privileges_for_sids(&result->privileges, result->user_sids,
+				result->num_sids);
+	return result;
+}
+
+/* END */