include/quota.h

/*
 *  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	_QUOTA_H_
#define	_QUOTA_H_

/** Disk quota commands.
 */
#define QUOTA_DROP		1
#define QUOTA_STAT		2
#define QUOTA_STAT2		3
#define QUOTA_MARKDURTY		9
#define QUOTA_SHOW		5

#define QUOTA_EXPTIME		259200

/** /usr/sbin/vzquota exit codes.
 */
#define EXITCODE_QUOTARUN	5
#define EXITCODE_QUOTANOTRUN	6
#define EXITCODE_QUOTNOTEXIST	11

/** Data structure for disk quota parameters.
 */
typedef struct {
	int enable;			/**< quota enable yes/no. */
	unsigned long *diskspace;	/**< disk block limit. */
	unsigned long *diskinodes;	/**< disk inodes limit. */
	unsigned long *exptime;		/**< quot aexpiration time. */
	unsigned long *ugidlimit;	/**< userqroup quota limit. */
} dq_param;

/** Setup disk quota limits.
 *
 * @param veid		CT ID.
 * @param dq		disk quota parameters.
 * @return		0 on success.
 */
int vps_set_quota(envid_t veid, dq_param *dq);

/** Turn disk quota on.
 *
 * @param veid		CT ID.
 * @param private	CT private area path.
 * @param dq		disk quota parameters.
 * @return		0 on success.
 */
int vps_quotaon(envid_t veid, char *private, dq_param *dq);

/** Turn disk quota off.
 *
 * @param veid		CT ID.
 * @param dq		disk quota parameters.
 * @return		0 on success.
 */
int vps_quotaoff(envid_t veid, dq_param *dq);

/** Disk quota managment wraper.
 *
 * @param veid		CT ID.
 * @param cmd		quota commands (QUOTA_MARKDURTY QUOTA_DROP QUOTA_STAT)
 * @return		0 on success.
 */
int quota_ctl(envid_t veid, int cmd);

/** Turn quota off.
 *
 * @param veid		CT ID.
 * @param force		forcebly turn quota off.
 * @return		0 on success.
 */
int quota_off(envid_t veid, int force);
int quota_on(envid_t veid, char *private, dq_param *param);
int quota_set(envid_t veid, char *private, dq_param *param);
int quota_init(envid_t veid, char *private, dq_param *param);
void quouta_inc(dq_param *param, int delta);
#endif