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/*
* Copyright (C) 2000-2008, Parallels, Inc. All rights reserved.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _CAP_H_
#define _CAP_H_
#include <linux/types.h>
#include "types.h"
struct env_param;
typedef __u32 cap_t;
#undef CAP_TO_MASK
#define CAP_TO_MASK(x) (1 << ((x) & 31)) /* mask for indexed __u32 */
#define cap_raise(c, flag) (c |= CAP_TO_MASK(flag))
#define cap_lower(c, flag) (c &= CAP_TO_MASK(flag))
/* Data structure for capability mask see /usr/include/linux/capability.h
*/
typedef struct {
unsigned long on;
unsigned long off;
} cap_param;
/** Add capability name to capability mask.
*
* @param name capability name.
* @param mask capability mask.
* @return 0 on success.
*/
int get_cap_mask(char *name, unsigned long *mask);
/** Apply capability mask to CT.
*
* @param veid CT ID.
* @param env CT environment parameters.
* @param cap capability mask.
* @return 0 on success.
*/
int vps_set_cap(envid_t veid, struct env_param *env, cap_param *cap);
/** Merge capabilities and return in string format.
*
* @param new new capability mask.
* @param old old capamility mask.
* @param buf merged capabilities in string format.
* @return
*/
void build_cap_str(cap_param *new, cap_param *old, char *buf, int len);
#endif