src/lib/quota.c - vzctl - Rivoreo Source Code Repositories

 /*
  *  Copyright (C) 2000-2010, 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
  */

 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>

 #include "types.h"
 #include "quota.h"
 #include "vzerror.h"
 #include "util.h"
 #include "script.h"
 #include "logger.h"

 #define VZQUOTA		"/usr/sbin/vzquota"

 void quota_inc(dq_param *param, int delta)
 {
 	if (param->enable != YES)
 		return;
 	if (param->diskspace != NULL) {
 		param->diskspace[0] += delta;
 		param->diskspace[1] += delta;
 	}
 	if (param->diskinodes != NULL) {
 		param->diskinodes[0] += delta;
 		param->diskinodes[1] += delta;
 	}
 }

 int is_2nd_level_quota_on(const dq_param *param)
 {
 	return (param->ugidlimit != NULL && *param->ugidlimit != 0);
 }

 int quota_set(envid_t veid, char *private, dq_param *param)
 {
 	int i, ret;
 	char buf[64];
 	char *arg[24];

 	if (param->diskspace == NULL &&
 		param->diskinodes == NULL &&
 		param->exptime == NULL &&
 		param->ugidlimit == NULL &&
 		private == NULL)
 	{
 		return 0;
 	}
 	i = 0;
 	arg[i++] = strdup(VZQUOTA);
 	arg[i++] = strdup("setlimit");
 	snprintf(buf, sizeof(buf), "%d", veid);
 	arg[i++] = strdup(buf);
 	if (private != NULL) {
 		arg[i++] = strdup("-p");
 		arg[i++] = strdup(private);
 	}
 	if (param->diskspace != NULL) {
 		arg[i++] = strdup("-b");
 		snprintf(buf, sizeof(buf), "%lu", param->diskspace[0]);
 		arg[i++] = strdup(buf);
 		arg[i++] = strdup("-B");
 		snprintf(buf, sizeof(buf), "%lu", param->diskspace[1]);
 		arg[i++] = strdup(buf);
 	}
 	if (param->diskinodes != NULL) {
 		arg[i++] = strdup("-i");
 		snprintf(buf, sizeof(buf), "%lu", param->diskinodes[0]);
 		arg[i++] = strdup(buf);
 		arg[i++] = strdup("-I");
 		snprintf(buf, sizeof(buf), "%lu", param->diskinodes[1]);
 		arg[i++] = strdup(buf);
 	}
 	if (param->exptime != NULL) {
 		arg[i++] = strdup("-e");
 		snprintf(buf, sizeof(buf), "%lu", param->exptime[0]);
 		arg[i++] = strdup(buf);
 		arg[i++] = strdup("-n");
 		snprintf(buf, sizeof(buf), "%lu", param->exptime[0]);
 		arg[i++] = strdup(buf);
 	}
 	/* Set ugid limit */
 	if (is_2nd_level_quota_on(param)) {
 		arg[i++] = strdup("-u");
 		snprintf(buf, sizeof(buf), "%lu", *param->ugidlimit);
 		arg[i++] = strdup(buf);
 	}
 	arg[i] = NULL;
 	if ((ret = run_script(VZQUOTA, arg, NULL, 0))) {
 		logger(-1, 0, "vzquota setlimit failed [%d]", ret);
 		ret = VZ_DQ_SET;
 	}
 	free_arg(arg);

 	return ret;
 }

 int quota_init(envid_t veid, char *private, dq_param *param)
 {
 	int i, ret;
 	char buf[64];
 	char *arg[24];

 	if (check_var(private,
 		"Error: Not enough parameters, private not set"))
 	{
 		return VZ_FS_NOPRVT;
 	}
 	if (check_var(param->diskspace,
 		"Error: Not enough parameters, diskspace quota not set"))
 	{
 		return VZ_DISKSPACE_NOT_SET;
 	}
 	if (check_var(param->diskinodes,
 		"Error: Not enough parameters, diskinodes quota not set"))
 	{
 		return VZ_DISKINODES_NOT_SET;
 	}
 	i = 0;
 	arg[i++] = strdup(VZQUOTA);
 	arg[i++] = strdup("init");
 	snprintf(buf, sizeof(buf), "%d", veid);
 	arg[i++] = strdup(buf);
 	/* Disk space */
 	arg[i++] = strdup("-b");
 	snprintf(buf, sizeof(buf), "%lu", param->diskspace[0]);
 	arg[i++] = strdup(buf);
 	arg[i++] = strdup("-B");
 	snprintf(buf, sizeof(buf), "%lu", param->diskspace[1]);
 	arg[i++] = strdup(buf);
 	/* Disk inodes */
 	arg[i++] = strdup("-i");
 	snprintf(buf, sizeof(buf), "%lu", param->diskinodes[0]);
 	arg[i++] = strdup(buf);
 	arg[i++] = strdup("-I");
 	snprintf(buf, sizeof(buf), "%lu", param->diskinodes[1]);
 	arg[i++] = strdup(buf);
 	/* CT private */
 	arg[i++] = strdup("-p");
 	arg[i++] = strdup(private);
 	/* Expiration time */
 	arg[i++] = strdup("-e");
 	snprintf(buf, sizeof(buf), "%lu",
 		param->exptime == NULL ? QUOTA_EXPTIME : param->exptime[0]);
 	arg[i++] = strdup(buf);
 	arg[i++] = strdup("-n");
 	arg[i++] = strdup(buf);
 	/* ugid limit */
 	arg[i++] = strdup("-s");
 	if (is_2nd_level_quota_on(param)) {
 		arg[i++] = strdup("1");
 		arg[i++] = strdup("-u");
 		snprintf(buf, sizeof(buf), "%lu", *param->ugidlimit);
 		arg[i++] = strdup(buf);
 	} else
 		arg[i++] = strdup("0");
 	arg[i] = NULL;
 	if ((ret = run_script(VZQUOTA, arg, NULL, 0))) {
 		logger(-1, 0, "vzquota init failed [%d]", ret);
 		ret = VZ_DQ_INIT;
 	}
 	free_arg(arg);

 	return ret;
 }

 /** Turn disk quota on.
  *
  * @param veid		CT ID.
  * @param private	CT private area path.
  * @param dq		disk quota parameters.
  * @return		0 on success.
  */
 int quota_on(envid_t veid, char *private, dq_param *param)
 {
 	int i, ret, ret2 = 0, tried = 0;
 	char buf[64];
 	char *arg[24];

 	if (check_var(param->diskspace,
 		"Error: Not enough parameters, diskspace quota not set"))
 	{
 		return VZ_DISKSPACE_NOT_SET;
 	}
 	if (check_var(param->diskinodes,
 		"Error: Not enough parameters, diskinodes quota not set"))
 	{
 		return VZ_DISKINODES_NOT_SET;
 	}
 	i = 0;
 	arg[i++] = strdup(VZQUOTA);
 	arg[i++] = strdup("on");
 	snprintf(buf, sizeof(buf), "%d", veid);
 	arg[i++] = strdup(buf);
 	/* Disk space */
 	arg[i++] = strdup("-b");
 	snprintf(buf, sizeof(buf), "%lu", param->diskspace[0]);
 	arg[i++] = strdup(buf);
 	arg[i++] = strdup("-B");
 	snprintf(buf, sizeof(buf), "%lu", param->diskspace[1]);
 	arg[i++] = strdup(buf);
 	/* Disk inodes */
 	arg[i++] = strdup("-i");
 	snprintf(buf, sizeof(buf), "%lu", param->diskinodes[0]);
 	arg[i++] = strdup(buf);
 	arg[i++] = strdup("-I");
 	snprintf(buf, sizeof(buf), "%lu", param->diskinodes[1]);
 	arg[i++] = strdup(buf);
 	/* Expiration time */
 	arg[i++] = strdup("-e");
 	snprintf(buf, sizeof(buf), "%lu",
 		param->exptime == NULL ? QUOTA_EXPTIME : param->exptime[0]);
 	arg[i++] = strdup(buf);
 	arg[i++] = strdup("-n");
 	arg[i++] = strdup(buf);
 	/* ugid limit */
 	arg[i++] = strdup("-s");
 	if (is_2nd_level_quota_on(param)) {
 		arg[i++] = strdup("1");
 		arg[i++] = strdup("-u");
 		snprintf(buf, sizeof(buf), "%lu", *param->ugidlimit);
 		arg[i++] = strdup(buf);
 	} else
 		arg[i++] = strdup("0");
 	arg[i] = 0;

 retry:
 	if ((ret = run_script(VZQUOTA, arg, NULL, 0))) {
 		switch (ret) {
 		case EXITCODE_QUOTNOTEXIST:
 			if (!tried) {
 				tried++;
 				/* Initialize the quota and retry */
 				ret2 = quota_init(veid, private, param);
 				if (!ret2)
 					goto retry;
 			}
 			break;
 		case EXITCODE_QUOTARUN:
 			/* Ignore the error, run quota set instead */
 			ret = 0;
 			ret2 = quota_set(veid, private, param);
 			break;
 		}
 	}
 	free_arg(arg);

 	if (ret2)
 		return ret2;

 	if (ret) {
 		logger(-1, 0, "vzquota on failed [%d]", ret);
 		return VZ_DQ_ON;
 	}

 	return 0;
 }

 /** Turn disk quota off.
  *
  * @param veid		CT ID.
  * @param dq		disk quota parameters.
  * @return		0 on success.
  */
 int quota_off(envid_t veid, int force)
 {
 	int i, ret;
 	char buf[64];
 	char *arg[5];

 	i = 0;
 	arg[i++] = strdup(VZQUOTA);
 	arg[i++] = strdup("off");
 	snprintf(buf, sizeof(buf), "%d", veid);
 	arg[i++] = strdup(buf);
 	if (force)
 		arg[i++] = strdup("-f");
 	arg[i] = NULL;
 	if ((ret = run_script(VZQUOTA, arg, NULL, 0))) {
 		if (ret != EXITCODE_QUOTANOTRUN) {
 			logger(-1, 0, "vzquota off failed [%d]", ret);
 			ret = VZ_DQ_OFF;
 		}
 		else
 			ret = 0;
 	}
 	free_arg(arg);

 	return ret;
 }

 /** Disk quota management wrapper.
  *
  * @param veid		CT ID.
  * @param cmd		quota commands (QUOTA_MARKDIRTY QUOTA_DROP QUOTA_STAT)
  * @return		0 on success.
  */
 int quota_ctl(envid_t veid, int cmd)
 {
 	int i, ret;
 	char buf[64];
 	char *arg[6];
 	int quiet = 0;

 	i = 0;
 	arg[i++] = strdup(VZQUOTA);
 	switch (cmd) {
 	case QUOTA_MARKDIRTY:
 		arg[i++] =strdup( "setlimit");
 		snprintf(buf, sizeof(buf), "%d", veid);
 		arg[i++] = strdup(buf);
 		arg[i++] = strdup("-f");
 		quiet = 1;
 		break;
 	case QUOTA_DROP	:
 		arg[i++] = strdup("drop");
 		snprintf(buf, sizeof(buf), "%d", veid);
 		arg[i++] = strdup(buf);
 		quiet = 1;
 		break;
 	case QUOTA_STAT :
 		arg[i++] = strdup("stat");
 		snprintf(buf, sizeof(buf), "%d", veid);
 		arg[i++] = strdup(buf);
 		arg[i++] = strdup("-f");
 		quiet = 1;
 		break;
 	case QUOTA_STAT2:
 		arg[i++] = strdup("stat");
 		snprintf(buf, sizeof(buf), "%d", veid);
 		arg[i++] = strdup(buf);
 		arg[i++] = strdup("-f");
 		arg[i++] = strdup("-t");
 		quiet = 1;
 		break;
 	case QUOTA_SHOW:
 		arg[i++] = strdup("show");
 		snprintf(buf, sizeof(buf), "%d", veid);
 		arg[i++] = strdup(buf);
 		quiet = 1;
 		break;
 	default	:
 		logger(-1, 0, "quota_ctl: Unknown action %d", cmd);
 		return VZ_SYSTEM_ERROR;
 	}
 	arg[i] = NULL;
 	ret = run_script(VZQUOTA, arg, NULL, quiet);
 	free_arg(arg);

 	return ret;
 }

 /** 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)
 {
 	int ret;
 	unsigned long *tmp_ugidlimit = NULL;

 	if (dq->enable == NO)
 		return 0;
 	if (dq->diskspace == NULL &&
 		dq->diskinodes == NULL &&
 		dq->exptime == NULL &&
 		dq->ugidlimit == NULL)
 	{
 		return 0;
 	}
 	if (quota_ctl(veid, QUOTA_STAT)) {
 		logger(-1, 0, "Error: Unable to apply new quota values:"
 			" quota not running");
 		return VZ_DQ_SET;
 	}
 	if (dq->ugidlimit != NULL) {
 		ret = quota_ctl(veid, QUOTA_STAT2);
 		if (ret == EXITCODE_UGID_NOTRUN && *dq->ugidlimit) {
 			logger(-1, 0, "Unable to apply new quota values:"
 				" ugid quota not initialized");
 			return VZ_DQ_UGID_NOTINITIALIZED;
 		} else if (!ret && !*dq->ugidlimit) {
 			logger(-1, 0, "WARNING: Unable to turn ugid quota"
 				" off. New parameters will be applied"
 				" during the next start");
 			tmp_ugidlimit = dq->ugidlimit;
 			dq->ugidlimit = NULL;
 		}
 	}
 	ret = quota_set(veid, NULL, dq);
 	if (tmp_ugidlimit != NULL)
 		dq->ugidlimit = tmp_ugidlimit;

 	return ret;
 }

 /** 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)
 {
 	int ret;

 	if (dq == NULL)
 		return 0;
 	if (dq->enable == NO) {
 //		quota_ctl(veid, QUOTA_MARKDIRTY);
 		return 0;
 	} else {
 		if (quota_ctl(veid, QUOTA_SHOW) == EXITCODE_QUOTNOTEXIST) {
 			logger(0, 0, "Initializing quota ...");
 			if ((ret = quota_init(veid, private, dq)))
 				return ret;
 		}
 	}
 	if ((ret = quota_on(veid, private, dq)))
 		return ret;
 	return 0;
 }

 /** 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)
 {
 	if (dq == NULL)
 		return 0;
 	if (dq->enable == NO)
 		return 0;
 	return quota_off(veid, 0);
 }
	/*
	* Copyright (C) 2000-2010, 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
	*/

	#include <stdlib.h>
	#include <stdio.h>
	#include <string.h>

	#include "types.h"
	#include "quota.h"
	#include "vzerror.h"
	#include "util.h"
	#include "script.h"
	#include "logger.h"

	#define VZQUOTA "/usr/sbin/vzquota"

	void quota_inc(dq_param *param, int delta)
	{
	if (param->enable != YES)
	return;
	if (param->diskspace != NULL) {
	param->diskspace[0] += delta;
	param->diskspace[1] += delta;
	}
	if (param->diskinodes != NULL) {
	param->diskinodes[0] += delta;
	param->diskinodes[1] += delta;
	}
	}

	int is_2nd_level_quota_on(const dq_param *param)
	{
	return (param->ugidlimit != NULL && *param->ugidlimit != 0);
	}

	int quota_set(envid_t veid, char private, dq_param param)
	{
	int i, ret;
	char buf[64];
	char *arg[24];

	if (param->diskspace == NULL &&
	param->diskinodes == NULL &&
	param->exptime == NULL &&
	param->ugidlimit == NULL &&
	private == NULL)
	{
	return 0;
	}
	i = 0;
	arg[i++] = strdup(VZQUOTA);
	arg[i++] = strdup("setlimit");
	snprintf(buf, sizeof(buf), "%d", veid);
	arg[i++] = strdup(buf);
	if (private != NULL) {
	arg[i++] = strdup("-p");
	arg[i++] = strdup(private);
	}
	if (param->diskspace != NULL) {
	arg[i++] = strdup("-b");
	snprintf(buf, sizeof(buf), "%lu", param->diskspace[0]);
	arg[i++] = strdup(buf);
	arg[i++] = strdup("-B");
	snprintf(buf, sizeof(buf), "%lu", param->diskspace[1]);
	arg[i++] = strdup(buf);
	}
	if (param->diskinodes != NULL) {
	arg[i++] = strdup("-i");
	snprintf(buf, sizeof(buf), "%lu", param->diskinodes[0]);
	arg[i++] = strdup(buf);
	arg[i++] = strdup("-I");
	snprintf(buf, sizeof(buf), "%lu", param->diskinodes[1]);
	arg[i++] = strdup(buf);
	}
	if (param->exptime != NULL) {
	arg[i++] = strdup("-e");
	snprintf(buf, sizeof(buf), "%lu", param->exptime[0]);
	arg[i++] = strdup(buf);
	arg[i++] = strdup("-n");
	snprintf(buf, sizeof(buf), "%lu", param->exptime[0]);
	arg[i++] = strdup(buf);
	}
	/* Set ugid limit */
	if (is_2nd_level_quota_on(param)) {
	arg[i++] = strdup("-u");
	snprintf(buf, sizeof(buf), "%lu", *param->ugidlimit);
	arg[i++] = strdup(buf);
	}
	arg[i] = NULL;
	if ((ret = run_script(VZQUOTA, arg, NULL, 0))) {
	logger(-1, 0, "vzquota setlimit failed [%d]", ret);
	ret = VZ_DQ_SET;
	}
	free_arg(arg);

	return ret;
	}

	int quota_init(envid_t veid, char private, dq_param param)
	{
	int i, ret;
	char buf[64];
	char *arg[24];

	if (check_var(private,
	"Error: Not enough parameters, private not set"))
	{
	return VZ_FS_NOPRVT;
	}
	if (check_var(param->diskspace,
	"Error: Not enough parameters, diskspace quota not set"))
	{
	return VZ_DISKSPACE_NOT_SET;
	}
	if (check_var(param->diskinodes,
	"Error: Not enough parameters, diskinodes quota not set"))
	{
	return VZ_DISKINODES_NOT_SET;
	}
	i = 0;
	arg[i++] = strdup(VZQUOTA);
	arg[i++] = strdup("init");
	snprintf(buf, sizeof(buf), "%d", veid);
	arg[i++] = strdup(buf);
	/* Disk space */
	arg[i++] = strdup("-b");
	snprintf(buf, sizeof(buf), "%lu", param->diskspace[0]);
	arg[i++] = strdup(buf);
	arg[i++] = strdup("-B");
	snprintf(buf, sizeof(buf), "%lu", param->diskspace[1]);
	arg[i++] = strdup(buf);
	/* Disk inodes */
	arg[i++] = strdup("-i");
	snprintf(buf, sizeof(buf), "%lu", param->diskinodes[0]);
	arg[i++] = strdup(buf);
	arg[i++] = strdup("-I");
	snprintf(buf, sizeof(buf), "%lu", param->diskinodes[1]);
	arg[i++] = strdup(buf);
	/* CT private */
	arg[i++] = strdup("-p");
	arg[i++] = strdup(private);
	/* Expiration time */
	arg[i++] = strdup("-e");
	snprintf(buf, sizeof(buf), "%lu",
	param->exptime == NULL ? QUOTA_EXPTIME : param->exptime[0]);
	arg[i++] = strdup(buf);
	arg[i++] = strdup("-n");
	arg[i++] = strdup(buf);
	/* ugid limit */
	arg[i++] = strdup("-s");
	if (is_2nd_level_quota_on(param)) {
	arg[i++] = strdup("1");
	arg[i++] = strdup("-u");
	snprintf(buf, sizeof(buf), "%lu", *param->ugidlimit);
	arg[i++] = strdup(buf);
	} else
	arg[i++] = strdup("0");
	arg[i] = NULL;
	if ((ret = run_script(VZQUOTA, arg, NULL, 0))) {
	logger(-1, 0, "vzquota init failed [%d]", ret);
	ret = VZ_DQ_INIT;
	}
	free_arg(arg);

	return ret;
	}

	/** Turn disk quota on.
	*
	* @param veid CT ID.
	* @param private CT private area path.
	* @param dq disk quota parameters.
	* @return 0 on success.
	*/
	int quota_on(envid_t veid, char private, dq_param param)
	{
	int i, ret, ret2 = 0, tried = 0;
	char buf[64];
	char *arg[24];

	if (check_var(param->diskspace,
	"Error: Not enough parameters, diskspace quota not set"))
	{
	return VZ_DISKSPACE_NOT_SET;
	}
	if (check_var(param->diskinodes,
	"Error: Not enough parameters, diskinodes quota not set"))
	{
	return VZ_DISKINODES_NOT_SET;
	}
	i = 0;
	arg[i++] = strdup(VZQUOTA);
	arg[i++] = strdup("on");
	snprintf(buf, sizeof(buf), "%d", veid);
	arg[i++] = strdup(buf);
	/* Disk space */
	arg[i++] = strdup("-b");
	snprintf(buf, sizeof(buf), "%lu", param->diskspace[0]);
	arg[i++] = strdup(buf);
	arg[i++] = strdup("-B");
	snprintf(buf, sizeof(buf), "%lu", param->diskspace[1]);
	arg[i++] = strdup(buf);
	/* Disk inodes */
	arg[i++] = strdup("-i");
	snprintf(buf, sizeof(buf), "%lu", param->diskinodes[0]);
	arg[i++] = strdup(buf);
	arg[i++] = strdup("-I");
	snprintf(buf, sizeof(buf), "%lu", param->diskinodes[1]);
	arg[i++] = strdup(buf);
	/* Expiration time */
	arg[i++] = strdup("-e");
	snprintf(buf, sizeof(buf), "%lu",
	param->exptime == NULL ? QUOTA_EXPTIME : param->exptime[0]);
	arg[i++] = strdup(buf);
	arg[i++] = strdup("-n");
	arg[i++] = strdup(buf);
	/* ugid limit */
	arg[i++] = strdup("-s");
	if (is_2nd_level_quota_on(param)) {
	arg[i++] = strdup("1");
	arg[i++] = strdup("-u");
	snprintf(buf, sizeof(buf), "%lu", *param->ugidlimit);
	arg[i++] = strdup(buf);
	} else
	arg[i++] = strdup("0");
	arg[i] = 0;

	retry:
	if ((ret = run_script(VZQUOTA, arg, NULL, 0))) {
	switch (ret) {
	case EXITCODE_QUOTNOTEXIST:
	if (!tried) {
	tried++;
	/* Initialize the quota and retry */
	ret2 = quota_init(veid, private, param);
	if (!ret2)
	goto retry;
	}
	break;
	case EXITCODE_QUOTARUN:
	/* Ignore the error, run quota set instead */
	ret = 0;
	ret2 = quota_set(veid, private, param);
	break;
	}
	}
	free_arg(arg);

	if (ret2)
	return ret2;

	if (ret) {
	logger(-1, 0, "vzquota on failed [%d]", ret);
	return VZ_DQ_ON;
	}

	return 0;
	}

	/** Turn disk quota off.
	*
	* @param veid CT ID.
	* @param dq disk quota parameters.
	* @return 0 on success.
	*/
	int quota_off(envid_t veid, int force)
	{
	int i, ret;
	char buf[64];
	char *arg[5];

	i = 0;
	arg[i++] = strdup(VZQUOTA);
	arg[i++] = strdup("off");
	snprintf(buf, sizeof(buf), "%d", veid);
	arg[i++] = strdup(buf);
	if (force)
	arg[i++] = strdup("-f");
	arg[i] = NULL;
	if ((ret = run_script(VZQUOTA, arg, NULL, 0))) {
	if (ret != EXITCODE_QUOTANOTRUN) {
	logger(-1, 0, "vzquota off failed [%d]", ret);
	ret = VZ_DQ_OFF;
	}
	else
	ret = 0;
	}
	free_arg(arg);

	return ret;
	}

	/** Disk quota management wrapper.
	*
	* @param veid CT ID.
	* @param cmd quota commands (QUOTA_MARKDIRTY QUOTA_DROP QUOTA_STAT)
	* @return 0 on success.
	*/
	int quota_ctl(envid_t veid, int cmd)
	{
	int i, ret;
	char buf[64];
	char *arg[6];
	int quiet = 0;

	i = 0;
	arg[i++] = strdup(VZQUOTA);
	switch (cmd) {
	case QUOTA_MARKDIRTY:
	arg[i++] =strdup( "setlimit");
	snprintf(buf, sizeof(buf), "%d", veid);
	arg[i++] = strdup(buf);
	arg[i++] = strdup("-f");
	quiet = 1;
	break;
	case QUOTA_DROP :
	arg[i++] = strdup("drop");
	snprintf(buf, sizeof(buf), "%d", veid);
	arg[i++] = strdup(buf);
	quiet = 1;
	break;
	case QUOTA_STAT :
	arg[i++] = strdup("stat");
	snprintf(buf, sizeof(buf), "%d", veid);
	arg[i++] = strdup(buf);
	arg[i++] = strdup("-f");
	quiet = 1;
	break;
	case QUOTA_STAT2:
	arg[i++] = strdup("stat");
	snprintf(buf, sizeof(buf), "%d", veid);
	arg[i++] = strdup(buf);
	arg[i++] = strdup("-f");
	arg[i++] = strdup("-t");
	quiet = 1;
	break;
	case QUOTA_SHOW:
	arg[i++] = strdup("show");
	snprintf(buf, sizeof(buf), "%d", veid);
	arg[i++] = strdup(buf);
	quiet = 1;
	break;
	default :
	logger(-1, 0, "quota_ctl: Unknown action %d", cmd);
	return VZ_SYSTEM_ERROR;
	}
	arg[i] = NULL;
	ret = run_script(VZQUOTA, arg, NULL, quiet);
	free_arg(arg);

	return ret;
	}

	/** 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)
	{
	int ret;
	unsigned long *tmp_ugidlimit = NULL;

	if (dq->enable == NO)
	return 0;
	if (dq->diskspace == NULL &&
	dq->diskinodes == NULL &&
	dq->exptime == NULL &&
	dq->ugidlimit == NULL)
	{
	return 0;
	}
	if (quota_ctl(veid, QUOTA_STAT)) {
	logger(-1, 0, "Error: Unable to apply new quota values:"
	" quota not running");
	return VZ_DQ_SET;
	}
	if (dq->ugidlimit != NULL) {
	ret = quota_ctl(veid, QUOTA_STAT2);
	if (ret == EXITCODE_UGID_NOTRUN && *dq->ugidlimit) {
	logger(-1, 0, "Unable to apply new quota values:"
	" ugid quota not initialized");
	return VZ_DQ_UGID_NOTINITIALIZED;
	} else if (!ret && !*dq->ugidlimit) {
	logger(-1, 0, "WARNING: Unable to turn ugid quota"
	" off. New parameters will be applied"
	" during the next start");
	tmp_ugidlimit = dq->ugidlimit;
	dq->ugidlimit = NULL;
	}
	}
	ret = quota_set(veid, NULL, dq);
	if (tmp_ugidlimit != NULL)
	dq->ugidlimit = tmp_ugidlimit;

	return ret;
	}

	/** 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)
	{
	int ret;

	if (dq == NULL)
	return 0;
	if (dq->enable == NO) {
	// quota_ctl(veid, QUOTA_MARKDIRTY);
	return 0;
	} else {
	if (quota_ctl(veid, QUOTA_SHOW) == EXITCODE_QUOTNOTEXIST) {
	logger(0, 0, "Initializing quota ...");
	if ((ret = quota_init(veid, private, dq)))
	return ret;
	}
	}
	if ((ret = quota_on(veid, private, dq)))
	return ret;
	return 0;
	}

	/** 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)
	{
	if (dq == NULL)
	return 0;
	if (dq->enable == NO)
	return 0;
	return quota_off(veid, 0);
	}