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linux/net/ax25/ax25_timer.c
Thomas Gleixner 2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00

223 lines
4.9 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Copyright (C) Alan Cox GW4PTS (alan@lxorguk.ukuu.org.uk)
* Copyright (C) Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
* Copyright (C) Tomi Manninen OH2BNS (oh2bns@sral.fi)
* Copyright (C) Darryl Miles G7LED (dlm@g7led.demon.co.uk)
* Copyright (C) Joerg Reuter DL1BKE (jreuter@yaina.de)
* Copyright (C) Frederic Rible F1OAT (frible@teaser.fr)
* Copyright (C) 2002 Ralf Baechle DO1GRB (ralf@gnu.org)
*/
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/jiffies.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
#include <linux/net.h>
#include <net/ax25.h>
#include <linux/inet.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <net/sock.h>
#include <linux/uaccess.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
static void ax25_heartbeat_expiry(struct timer_list *);
static void ax25_t1timer_expiry(struct timer_list *);
static void ax25_t2timer_expiry(struct timer_list *);
static void ax25_t3timer_expiry(struct timer_list *);
static void ax25_idletimer_expiry(struct timer_list *);
void ax25_setup_timers(ax25_cb *ax25)
{
timer_setup(&ax25->timer, ax25_heartbeat_expiry, 0);
timer_setup(&ax25->t1timer, ax25_t1timer_expiry, 0);
timer_setup(&ax25->t2timer, ax25_t2timer_expiry, 0);
timer_setup(&ax25->t3timer, ax25_t3timer_expiry, 0);
timer_setup(&ax25->idletimer, ax25_idletimer_expiry, 0);
}
void ax25_start_heartbeat(ax25_cb *ax25)
{
mod_timer(&ax25->timer, jiffies + 5 * HZ);
}
void ax25_start_t1timer(ax25_cb *ax25)
{
mod_timer(&ax25->t1timer, jiffies + ax25->t1);
}
void ax25_start_t2timer(ax25_cb *ax25)
{
mod_timer(&ax25->t2timer, jiffies + ax25->t2);
}
void ax25_start_t3timer(ax25_cb *ax25)
{
if (ax25->t3 > 0)
mod_timer(&ax25->t3timer, jiffies + ax25->t3);
else
del_timer(&ax25->t3timer);
}
void ax25_start_idletimer(ax25_cb *ax25)
{
if (ax25->idle > 0)
mod_timer(&ax25->idletimer, jiffies + ax25->idle);
else
del_timer(&ax25->idletimer);
}
void ax25_stop_heartbeat(ax25_cb *ax25)
{
del_timer(&ax25->timer);
}
void ax25_stop_t1timer(ax25_cb *ax25)
{
del_timer(&ax25->t1timer);
}
void ax25_stop_t2timer(ax25_cb *ax25)
{
del_timer(&ax25->t2timer);
}
void ax25_stop_t3timer(ax25_cb *ax25)
{
del_timer(&ax25->t3timer);
}
void ax25_stop_idletimer(ax25_cb *ax25)
{
del_timer(&ax25->idletimer);
}
int ax25_t1timer_running(ax25_cb *ax25)
{
return timer_pending(&ax25->t1timer);
}
unsigned long ax25_display_timer(struct timer_list *timer)
{
if (!timer_pending(timer))
return 0;
return timer->expires - jiffies;
}
EXPORT_SYMBOL(ax25_display_timer);
static void ax25_heartbeat_expiry(struct timer_list *t)
{
int proto = AX25_PROTO_STD_SIMPLEX;
ax25_cb *ax25 = from_timer(ax25, t, timer);
if (ax25->ax25_dev)
proto = ax25->ax25_dev->values[AX25_VALUES_PROTOCOL];
switch (proto) {
case AX25_PROTO_STD_SIMPLEX:
case AX25_PROTO_STD_DUPLEX:
ax25_std_heartbeat_expiry(ax25);
break;
#ifdef CONFIG_AX25_DAMA_SLAVE
case AX25_PROTO_DAMA_SLAVE:
if (ax25->ax25_dev->dama.slave)
ax25_ds_heartbeat_expiry(ax25);
else
ax25_std_heartbeat_expiry(ax25);
break;
#endif
}
}
static void ax25_t1timer_expiry(struct timer_list *t)
{
ax25_cb *ax25 = from_timer(ax25, t, t1timer);
switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
case AX25_PROTO_STD_SIMPLEX:
case AX25_PROTO_STD_DUPLEX:
ax25_std_t1timer_expiry(ax25);
break;
#ifdef CONFIG_AX25_DAMA_SLAVE
case AX25_PROTO_DAMA_SLAVE:
if (!ax25->ax25_dev->dama.slave)
ax25_std_t1timer_expiry(ax25);
break;
#endif
}
}
static void ax25_t2timer_expiry(struct timer_list *t)
{
ax25_cb *ax25 = from_timer(ax25, t, t2timer);
switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
case AX25_PROTO_STD_SIMPLEX:
case AX25_PROTO_STD_DUPLEX:
ax25_std_t2timer_expiry(ax25);
break;
#ifdef CONFIG_AX25_DAMA_SLAVE
case AX25_PROTO_DAMA_SLAVE:
if (!ax25->ax25_dev->dama.slave)
ax25_std_t2timer_expiry(ax25);
break;
#endif
}
}
static void ax25_t3timer_expiry(struct timer_list *t)
{
ax25_cb *ax25 = from_timer(ax25, t, t3timer);
switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
case AX25_PROTO_STD_SIMPLEX:
case AX25_PROTO_STD_DUPLEX:
ax25_std_t3timer_expiry(ax25);
break;
#ifdef CONFIG_AX25_DAMA_SLAVE
case AX25_PROTO_DAMA_SLAVE:
if (ax25->ax25_dev->dama.slave)
ax25_ds_t3timer_expiry(ax25);
else
ax25_std_t3timer_expiry(ax25);
break;
#endif
}
}
static void ax25_idletimer_expiry(struct timer_list *t)
{
ax25_cb *ax25 = from_timer(ax25, t, idletimer);
switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
case AX25_PROTO_STD_SIMPLEX:
case AX25_PROTO_STD_DUPLEX:
ax25_std_idletimer_expiry(ax25);
break;
#ifdef CONFIG_AX25_DAMA_SLAVE
case AX25_PROTO_DAMA_SLAVE:
if (ax25->ax25_dev->dama.slave)
ax25_ds_idletimer_expiry(ax25);
else
ax25_std_idletimer_expiry(ax25);
break;
#endif
}
}