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/* $Id: isdn_budget.c,v 1.3 1998/10/23 10:18:39 paul Exp $
*
* Linux ISDN subsystem, budget-accounting for network interfaces.
*
* Copyright 1997 by Christian Lademann <cal@zls.de>
*
* 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Log: isdn_budget.c,v $
* Revision 1.3 1998/10/23 10:18:39 paul
* Implementation of "dialmode" (successor of "status")
* You also need current isdnctrl for this!
*
* Revision 1.2 1998/03/07 23:17:30 fritz
* Added RCS keywords
* Bugfix: Did not compile without isdn_dumppkt beeing enabled.
*
*/
/*
30.06.97:cal:angelegt
04.11.97:cal:budget.period: int --> time_t
*/
#include <linux/config.h>
#define __NO_VERSION__
#include <linux/module.h>
#include <linux/isdn.h>
#include "isdn_common.h"
#include "isdn_net.h"
#ifdef CONFIG_ISDN_BUDGET
#define VERBOSE_PRINTK(v, l, p...) { \
if(dev->net_verbose >= (v)) { \
printk(l ## p); \
} else { ; } \
}
int
isdn_net_budget(int type, struct device *ndev) {
isdn_net_local *lp = (isdn_net_local *)ndev->priv;
int i, ret = 0;
switch(type) {
case ISDN_BUDGET_INIT:
for(i = 0; i < ISDN_BUDGET_NUM_BUDGET; i++) {
lp->budget [i] .amount = -1;
lp->budget [i] .used = 0;
lp->budget [i] .period = (time_t)0;
lp->budget [i] .period_started = (time_t)0;
lp->budget [i] .last_check = CURRENT_TIME;
lp->budget [i] .notified = 0;
}
return(0);
break;
case ISDN_BUDGET_CHECK_DIAL:
case ISDN_BUDGET_CHECK_CHARGE:
case ISDN_BUDGET_CHECK_ONLINE:
ret = 0;
for(i = 0; i < ISDN_BUDGET_NUM_BUDGET; i++) {
if(lp->budget [i] .amount < 0)
continue;
if(lp->budget [i] .period_started + lp->budget [i] .period < CURRENT_TIME) {
lp->budget [i] .used = 0;
lp->budget [i] .period_started = CURRENT_TIME;
lp->budget [i] .notified = 0;
}
if(lp->budget [i] .used >= lp->budget [i] .amount)
ret |= (1 << i);
}
switch(type) {
case ISDN_BUDGET_CHECK_DIAL:
if(! ret) {
lp->budget [ISDN_BUDGET_DIAL] .used++;
lp->budget [ISDN_BUDGET_DIAL] .last_check = CURRENT_TIME;
}
break;
case ISDN_BUDGET_CHECK_CHARGE:
lp->budget [ISDN_BUDGET_CHARGE] .used++;
lp->budget [ISDN_BUDGET_CHARGE] .last_check = CURRENT_TIME;
break;
case ISDN_BUDGET_CHECK_ONLINE:
if(lp->budget [ISDN_BUDGET_ONLINE] .last_check) {
lp->budget [ISDN_BUDGET_ONLINE] .used += (CURRENT_TIME - lp->budget [ISDN_BUDGET_ONLINE] .last_check);
}
lp->budget [ISDN_BUDGET_ONLINE] .last_check = CURRENT_TIME;
break;
}
/*
if(ret)
lp->flags |= ISDN_NET_DM_OFF;
*/
for(i = 0; i < ISDN_BUDGET_NUM_BUDGET; i++) {
if(ret & (1 << i) && ! lp->budget [i] .notified) {
switch(i) {
case ISDN_BUDGET_DIAL:
printk(KERN_WARNING "isdn_budget: dial budget used up.\n");
break;
case ISDN_BUDGET_CHARGE:
printk(KERN_WARNING "isdn_budget: charge budget used up.\n");
break;
case ISDN_BUDGET_ONLINE:
printk(KERN_WARNING "isdn_budget: online budget used up.\n");
break;
default:
printk(KERN_WARNING "isdn_budget: budget #%d used up.\n", i);
break;
}
lp->budget [i] .notified = 1;
}
}
return(ret);
break;
case ISDN_BUDGET_START_ONLINE:
lp->budget [ISDN_BUDGET_ONLINE] .last_check = CURRENT_TIME;
return(0);
break;
}
return(-1);
}
int
isdn_budget_ioctl(isdn_ioctl_budget *iocmd) {
isdn_net_dev *p = isdn_net_findif(iocmd->name);
if(p) {
switch(iocmd->command) {
case ISDN_BUDGET_SET_BUDGET:
if(! suser())
return(-EPERM);
if(iocmd->budget < 0 || iocmd->budget > ISDN_BUDGET_NUM_BUDGET)
return(-EINVAL);
if(iocmd->amount < 0)
iocmd->amount = -1;
p->local->budget [iocmd->budget] .amount = iocmd->amount;
p->local->budget [iocmd->budget] .period = iocmd->period;
if(iocmd->used <= 0)
p->local->budget [iocmd->budget] .used = 0;
else
p->local->budget [iocmd->budget] .used = iocmd->used;
if(iocmd->period_started == (time_t)0)
p->local->budget [iocmd->budget] .period_started = CURRENT_TIME;
else
p->local->budget [iocmd->budget] .period_started = iocmd->period_started;
return(0);
break;
case ISDN_BUDGET_GET_BUDGET:
if(iocmd->budget < 0 || iocmd->budget > ISDN_BUDGET_NUM_BUDGET)
return(-EINVAL);
iocmd->amount = p->local->budget [iocmd->budget] .amount;
iocmd->used = p->local->budget [iocmd->budget] .used;
iocmd->period = p->local->budget [iocmd->budget] .period;
iocmd->period_started = p->local->budget [iocmd->budget] .period_started;
return(0);
break;
default:
return(-EINVAL);
break;
}
}
return(-ENODEV);
}
#endif
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