/*
* Copyright (c) 2006 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup kernel_generic
* @{
*/
/** @file
*/
/**
* @file
* @brief Task permissions definitions.
*
* Permissions represent virtual rights that entitle their
* holder to perform certain security sensitive tasks.
*
* Each task can have arbitrary combination of the permissions
* defined in this file. Therefore, they are required to be powers
* of two.
*/
#ifndef __PERM_H__
#define __PERM_H__
#include <typedefs.h>
/**
* PERM_PERM allows its holder to grant/revoke arbitrary permission to/from
* other tasks.
*/
#define PERM_PERM (1 << 0)
/**
* PERM_MEM_MANAGER allows its holder to map physical memory to other tasks.
*/
#define PERM_MEM_MANAGER (1 << 1)
/**
* PERM_IO_MANAGER allows its holder to access I/O space to other tasks.
*/
#define PERM_IO_MANAGER (1 << 2)
/**
* PERM_IRQ_REG entitles its holder to register IRQ handlers.
*/
#define PERM_IRQ_REG (1 << 3)
typedef uint32_t perm_t;
#ifdef __32_BITS__
extern sys_errno_t sys_perm_grant(uspace_ptr_sysarg64_t, perm_t);
extern sys_errno_t sys_perm_revoke(uspace_ptr_sysarg64_t, perm_t);
#endif /* __32_BITS__ */
#ifdef __64_BITS__
extern sys_errno_t sys_perm_grant(sysarg_t, perm_t);
extern sys_errno_t sys_perm_revoke(sysarg_t, perm_t);
#endif /* __64_BITS__ */
#endif
/** @}
*/