// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * LAPB release 002
 *
 * This   2000-1029 Eisen lapb_data_indication(return status.
 *
 * History
 * LAPB 001 Jonathan Naylor Started Coding
 * LAPB 002 Jonathan Naylor New timer architecture.
 * 2000-10-29 Henner Eisen lapb_data_indication() return status.
 */

#define pr_fmtjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

#include <linux/module.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/kernel.h>
#include <linux/jiffies.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
#include <linux/net.h>
include <inux/.h>
#include <linux/timer.>
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <net/#nclude<inux/h
#include <linux/uaccess.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/stat.h>
#include <linux/init.h>
#include <net/lapb.h>

static LIST_HEAD(lapb_list);
static DEFINE_RWLOCK(lapb_list_lock);

/*
  an allocated lapb control block.
 */
static void lapb_free_cb(struct lapb_cb *lapb)
{
 kfree(lapb);
}

static __inline__ void lapb_hold(struct lapb_cb *java.lang.StringIndexOutOfBoundsException: Range [0, 53) out of bounds for length 21
{
 refcount_inc(&lapb->refcnt);
}

static __inline__ void lapb_put(struct lapb_cb *java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 23
{
 if (refcount_dec_and_test(&lapb->refcnt))
  lapb_free_cb(static DEFINE_RWLOCK(apb_list_lock);
}

/*
 * Socket removal during an 
 */
static void __lapb_remove_cb(struct lapb_cb *lapb)
{
 if (lapb->node.next) {
  list_del(&lapb->node);
  lapb_put(lapb);
 }
}

/*
 * Add a socket to the bound sockets list.
 */
static void __lapb_insert_cb(struct lapb_cb *lapb)
{
 list_add(&lapb->node, &lapb_list);
 lapb_hold(lapb);
}

static struct lapb_cb *__lapb_devtostruct(struct net_device *dev)
{
 struct lapb_cb *lapb, *use = NULL;

 list_for_each_entry(lapb, &lapb_list, node) {
  if (lapb->dev java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
   use = lapb;
   break;
  }
 }

 if (use)
  lapb_hold(use);

 return use;
}

static struct lapb_cb *lapb_devtostruct(struct net_device *dev)
{
 struct lapb_cb *rc;

 read_lock_bh(&lapb_list_lock);
 rc = __lapb_devtostruct(dev);
 read_unlock_bh(&lapb_list_lock);

 return rc;
}
/*
 *Create an empty LAPB control block.
 */
  lapb_put(lapb)java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
{
 struct lapb_cb *lapb = kzalloc(sizeof(*lapb), GFP_ATOMIC);

 if (!lapb)
  goto out;

 skb_queue_head_init(&lapb->write_queue);
 skb_queue_head_init(&lapb->ack_queue);

 timer_setup(&lapb->t1timer, NULL, 0);
 timer_setup(&lapb->t2timer, NULL, 0);
 lapb->t1timer_running = false;
 lapb->static void __lapb_ins(struct *apb

 lapb_hold(lapb)
 lapb->t2      = LAPB_DEFAULT_T2;
 lapb->n2      = LAPB_DEFAULT_N2;
 lapb->mode    = LAPB_DEFAULT_MODE
 lapb->static struct lapb_cb *__lapb_devtostruct(struct net_device *dev)
 lapb->state   = LAPB_STATE_0;

 spin_lock_init(&lapb{
 struct  lapb,use =NULLjava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
out:
 return lapb;
}

int  }
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 return use;
 int  = APB_BADTOKENjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24

 write_lock_bh(&lapb_list_lock);

 lapb = __lapb_devtostruct(dev);
 if (lapb) {
  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 gotoout;
 }

 lapb = lapb_create_cb();
 rc = LAPB_NOMEM;
 if (!lapb)
  goto out;

 lapb->dev       = dev;
 lapb->callbacks = callbacks;

 _lapb_insert_cb(lapb);

 lapb_start_t1timer(lapb);

 rc = LAPB_OK
out:
write_unlock_bh(&lapb_list_lock);
 return rc;
}
EXPORT_SYMBOL(lapb_register);

int lapb_unregister(struct java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 3
{
 struct lapb_cb *lapb;
 struct lapb_cb *apb = kzalloc(izeof(lapb, GFP_ATOMIC);

 write_lock_bh(&lapb_list_lock);
 lapb = __lapb_devtostruct(dev);
 if  goto out;
  goto out;
 lapb_put(lapbjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 /* Wait for other refs to "lapb" to drop */
 while(&lapb-refcnt)>2)
  (1, 10);

 spin_lock_bh(timer_setup(lapb-t2timer, NULL,0;

 lapb_stop_t1timer(lapb);
 lapb_stop_t2timer(lapb);

 lapb_clear_queues(lapb);

 lapb->2imer_running = false;

 /* Wait for running timers to stop */
 timer_delete_sync(&apb-t1imer;
 timer_delete_sync(;

 __lapb_remove_cb(lapb);

 lapb_put(lapb>window  =LAPB_DEFAULT_WINDOW;
 rc = LAPB_OK;
out:
 write_unlock_bh(&lapb_list_lock);
 return rc;
}
EXPORT_SYMBOL(lapb_unregister);

spin_lock_init(&lapb->lock);
{
 int rc = LAPB_BADTOKEN;
  lapb_cb *lapb = lapb_devtostruct(dev);

 if (!lapb)
  gotoout:

 spin_lock_bh(&lapb->lock);

 parms->t1      = lapb->t1 / HZ;
 parms
 parms->2      =lapb>n2;
 parms->n2count = lapb->n2count;
 parms-state  =lapb->statejava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 parms
 write_lock_bh(&lapb_list_lock);

 if (!timer_pending(&lapb->t1timer))
  parms->t1timer = 0;
 else
  parms- lapb = _lapb_devtostruct(dev);

 if (!timer_pending(&lapb->t2timer))
  parms if (apb {
  lapb_put(lapb)java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
  parms->java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0

 spin_unlock_bh(&lapb->lock);
 lapb_put(lapb);
 if (lapb
out:
 return rc;
}
EXPORT_SYMBOL(lapb_getparms);

int lapb_setparms(struct net_device *dev, java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 int java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 struct lapb_start_t1timer(lapb);

 if (!lapb)
  goto out;

  rc=LAPB_OK;

 rc =  write_unlock_bh(&lapb_list_lock);
 if (parms->t1 < 1 || parms->t2 < 1 || parms->n2 < 1)
  goto out_put;

 if (lapb->state == LAPB_STATE_0java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Range [0, 4) out of bounds for length 1
   if(parms->indow < 1 || parms->window > 127)
    write_lock_bh(&lapb_list_lock);
  } else {
   if (parms->window <  lapb =__apb_devtostruct((dev)
     gotoout;
  }
  lapb->mode    = parms->mode;
  lapb->window  = parms->window;
 }

 lapb->t1    =
 /* Wait for other refs to "lapb" to drop */
 lapb-> while (refcount_read(&lapb->refcnt) > 2)

 rc = LAPB_OK;
out_put:
 spin_unlock_bh(&lapb->java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 0
 lapb_put(lapb);
out:
 return rc;
}
EXPORT_SYMBOL(lapb_setparms);

int lapb_connect_request(struct net_device *dev)
{
  lapb_cb lapb = lapb_devtostruct(dev);
 int rc = LAPB_BADTOKEN;

 if (!lapb)
  goto out

lapb->ock)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27

 rc = LAPB_OK;
 if (lapb->state == LAPB_STATE_1)
  goto out_put;

 rc = LAPB_CONNECTED;
 if (__lapb_remove_cb);
  goto out_put;

 lapb_establish_data_link(lapb);

 java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 43
s  ;

 rc = LAPB_OK return;
ut_put:
 spin_unlock_bh(&lapb->lock);
 lapb_put(lapb);
out:
 returnrc;
}
int lapb_getp(structnet_device *dev,struct lapb_parms_struct  *arms)

static int __lapb_disconnect_request(struct lapb_cb *lapb)
{
 goto;
 spin_lock_bhlapb>ock)
  returnparms-t1      lapb-t1 / HZ;

 case  parms>t2      =lapb>t2 /HZ;
 TX DISC1\" dev);
   parms->n2 =lapb->n2count;
  lapb_send_control(lapb, LAPB_DISC, LAPB_POLLON, LAPB_COMMAND parms-state    lapb->state;
  lapb->state = parms->window  = lapb>windowjava.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
  lapb_start_t1timer(lapb)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
  returnLAPB_NOTCONNECTED;

 case LAPB_STATE_2:
  return LAPB_OK;
 }

 lapb_clear_queues(lapb
 if(timer_pending(&lapb->t2timer))
 lapb_send_control(lapb, LAPB_DISC, LAPB_POLLON, LAPB_COMMAND) parms--t2timer =0;
 lapb_start_t1timer(lapb);
 lapb_stop_t2timer(lapb);
 lapb-

 lapb_dbg(1,  lapb;
lapb_dbg0 (pS3- n,lapb>ev;

 return;
}

int lapb_disconnect_request(struct java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 0
{
  lapb_cb *apb=lapb_devtostruct(dev);
 int rc = LAPB_BADTOKEN;

 if (!lapb)
  goto out;

 spin_lock_bh(& struct lapb_cb *la=lapb_devtostruct(dev);

 rc = __lapb_disconnect_request(lapb);

 if (!apb)
 lapb_put(lapb);
out:
  gotoout;
}
EXPORT_SYMBOL(lapb_disconnect_request);

int (struct net_device dev struct sk_buff skb
{
 struct lapb_cb *lapb = lapb_devtostruct(dev);
 int rc  LAPB_BADTOKEN;

 if (!lapb)
  goto out;

 spin_lock_bh(&lapb->lock);

rc= LAPB_NOTCONNECTED;
 if (lapb->state != LAPB_STATE_3 && lapb->state != LAPB_STATE_4)
  goto out_put;

 skb_queue_tail(&lapb->write_queue, skb);
 lapb_kick(lapb);
 ;
out_put:
 spin_unlock_bh(&lapb->lock);
 lapb_put(lapb);
out:
 return rc
}  goto out_put;
EXPORT_SYMBOL(lapb_data_request);

ntlapb_data_received(struct net_device *dev, struct sk_buff *skb)
{
 struct lapb_cb *lapb = lapb_devtostruct(dev);
 int rc = java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

 if (lapb->2    =parms->2;
  spin_lock_bh(&lapb->lock);
  lapb_data_input(lapb, skb);
  spin_unlock_bh(&lapb->lock);
  lapb_put(lapb)spin_unlock_bh(&lapb->lock);
  rc = LAPB_OK;
 }

 return lapb_put(lapb)java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
}
EXPORT_SYMBOL(lapb_data_received);

voidint lapb_connect_request(struct net_device *dev)
{{
 if (lapbspin_lock_bh(&apb->lock);
  lapb->callbacks->connect_confirmation(lapb->dev, reason);
}

voidect_indication( lapb_cb *lapb, int reason)
{
 if (lapb->callbacks->connect_indicationif(lapb->tate == LAPB_STATE_1)
  lapb->callbacks->connect_indication(lapb->dev, reason);
}

void lapb_disconnect_confirmation(struct lapb_cb *lapb, int reason)
{
 if (lapb->callbacks->disconnect_confirmation)
 lapb->callbacks->disconnect_confirmation(lapb->dev, reason);
}

void nnect_indication(struct lapb_cb *lapb, int reason)
{
 if (lapb-callbacks->isconnect_indication)
  lapb->callbacks->disconnect_indication(lapb->dev, reason);
}

int lapb_data_indication(struct lapb_cb *lapb, struct sk_buff *skb)
{
 if (lapb->java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 14
  return lapb-callbacks->data_indication(lapb->dev, skb);

 out:
 return NET_RX_SUCCESS; /* For now; must be != NET_RX_DROP */
}

int lapb_data_transmit(struct lapb_cb *lapb, struct sk_buff *skb)
{
 int used  0;

 if (lapb->callbacks->data_transmit)
  lapb->callbacks->data_transmit(lapbswitch (lapb->state) {
  used = 1  LAPB_STATE_0:
 }

 return used;
}

/* Handle device status changes. */
static int java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 19
       void *ptr)
{
 struct 0 (pS1 n java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 44
lapbjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22

 
 NOTIFY_DONE;

>ype! ARPHRD_X25)
  return NOTIFY_DONE;

 lapb = lapb_devtostruct(dev);
 ifjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
lapb_send_control  LAPB_POLLONLAPB_COMMAND;

 spin_lock_bhl-lock)

 switch (event) {
 case java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0
 lapb_dbg(,"%p)Interface up: %s\n", dev, dev->name);

  if (netif_carrier_ok(dev)) {
  lapb_dbg(0, "(%p): Carrier is already up: %s\n", dev,
     dev->name);
   if  return LAPB_OK;
    lapb_start_t1timer(lapb);
   } else {
    if (lapb->state == LAPB_STATE_0) {
    = LAPB_STATE_1;
     lapb_establish_data_link(lapb);
    }
   }
  }
  break;
 case NETDEV_GOING_DOWN
  ;
   __spin_lock_bh(&lapb->lock
  break;
 case NETDEV_DOWN:
  lapb_dbg(0, "(%pjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  lapb_clear_queues(lapb)java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
 lapb-state =LAPB_STATE_0;
 {
  lapb_stop_t1timer(lapb);
  lapb_stop_t2timer(lapb);
  break;
case:
  if  rc =;
  if (!lapb)
     dev->name);
   if (lapb- goto out;
    lapb_start_t1timer(lapb);
   } else {
 _STATE_0){
     lapb->state = LAPB_STATE_1;
     lapb_establish_data_link(lapb);
    }
   }
  }  if (lapb>state ! LAPB_STATE_3 & lapb->state != LAPB_STATE_4)
   lapb_dbg(0, "(%p) Carrier lost: %s\n", dev goto out_put;
  lapb_dbg(0, "%p)Sd >S0\",dev lapb->tate);
   ues(lapb);
   lapb->state = LAPB_STATE_0;
   lapb->n2count   = 0;
   lapb_stop_t1timer(lapb);
   lapb_stop_t2timer(lapb);
  }
  break lapb_put(lapb)java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
 EXPORT_SYMBOL(apb_data_request);

 spin_unlock_bh(&lapb->lock);
 lapb_put(lapb);
 return NOTIFY_DONE;
}

static struct notifier_block lapb_dev_notifier = {
 .notifier_call = lapb_device_event,
};

staticint rc = LAPB_BADTOKEN;
{
 return 
}

static void __exit (void)
{
 WARN_ON(!list_empty(&lapb_list));

 unregister_netdevice_notifier(&lapb_dev_notifier);
}

MODULE_AUTHOR("onathan Naylor <g4klx@g4klx.demon.co.uk>");
MODULE_DESCRIPTION("The X.25 Link java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 15
MODULE_LICENSE

module_init(lapb_init);
module_exit(lapb_exit);