/********************************************************/
/*  ntapi: Native API core library                      */
/*  Copyright (C) 2013--2016  Z. Gilboa                 */
/*  Released under GPLv2 and GPLv3; see COPYING.NTAPI.  */
/********************************************************/

#include <psxtypes/psxtypes.h>
#include <ntapi/nt_object.h>
#include <ntapi/nt_token.h>
#include <ntapi/ntapi.h>
#include "ntapi_impl.h"


static int32_t __stdcall __set_token_privilege(
	__in	void *		htoken,
	__in	uint32_t	privilege,
	__in	int		attribute)
{
	uintptr_t		buffer[64];
	nt_token_privileges *	tokprivs;

	/* reasonable scope */
	if (privilege > 255)
		return NT_STATUS_INVALID_PARAMETER;

	/* buffer */
	__ntapi->tt_aligned_block_memset(
		buffer,0,sizeof(buffer));

	tokprivs = (nt_token_privileges *)buffer;

	/* token privileges */
	tokprivs->privilege_count = 1;

	tokprivs->privileges[0].attributes = attribute;
	tokprivs->privileges[0].luid.low   = privilege;
	tokprivs->privileges[0].luid.high  = 0;

	/* set */
	return __ntapi->zw_adjust_privileges_token(
		htoken,0,
		tokprivs,sizeof(buffer),
		0,0);
}


int32_t __stdcall __ntapi_tt_enable_token_privilege(
	__in	void *		htoken,
	__in	uint32_t	privilege)
{
	return __set_token_privilege(
		htoken,
		privilege,
		NT_SE_ENABLE_PRIVILEGE);
}

int32_t __stdcall __ntapi_tt_disable_token_privilege(
	__in	void *		htoken,
	__in	uint32_t	privilege)
{
	return __set_token_privilege(
		htoken,
		privilege,
		NT_SE_DISABLE_PRIVILEGE);
}