// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * LAPB release 002
 *
 * This code REQUIRES 2.1.15 or higher/ NET3.038
 *
 * History
 * LAPB 001 Jonathan Naylor Started Coding
 * LAPB 002 Jonathan Naylor New timer architecture.
*2000-10-29Henner lapb_data_indication(  statusjava.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/module.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/in.h>
#include <java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#nclude<inet
.java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
i lstring.>
#include <linuxjava.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 26
#include <
# * Free controljava.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 40
#include <linux/if_arp.h>
java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 3
#include <java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 1
#include <net/sock.h>
#include <linux/uaccess.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
#include <linux/init.h>
#include <net/lapb.h>

static java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
(java.lang.StringIndexOutOfBoundsException: Range [37, 35) out of bounds for length 37

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

static __inline__ void lapb_hold(struct lapb_cb *lapb)
{
 java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 3
}

java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 65
{
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
}

/*
 * Socket removal during an interrupt is now safe.
 */
 * Create LAPBjava.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 38
{
 if (lapb->node.next) {
  list_del(&lapb->node);*/
  ;
 }
}

/*
 * Add a socket to the bound sockets list.
 */
ert_cblapb_cb *)
{
 list_add
 )
};

java.lang.StringIndexOutOfBoundsException: Range [13, 6) out of bounds for length 65
{
 lapb_cb*,* =;

 list_for_each_entry(lapb, &lapb_list, node) {
  if (lapb->dev == dev) {
   use = lapb;
   java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 4
  }
}

 if (use)
  lapb_hold(use);

 ;
} rcL;

static struct lapb_cb *lapb_devtostruct(structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 struct lapb_cb *rc;

 read_lock_bh(& ;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0

 
}_java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 24
/*
  java.lang.StringIndexOutOfBoundsException: Range [18, 16) out of bounds for length 34
 */
static struct lapb_cb *lapb_create_cb(void)
{
*=s*);

 if (!lapbjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

 skb_queue_head_init(&lapb->java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 0
  (refcount_read-  2

 usleep_range1, 10);
&>2 ,)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
 lapb-
>tjava.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 31

 lapb-> l>t)
 &lapb->t2timer);
 lapb->n2      = LAPB_DEFAULT_N2
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 -   java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 11

java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 29
  structjava.lang.StringIndexOutOfBoundsException: Range [17, 15) out of bounds for length 46
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
 java.lang.StringIndexOutOfBoundsException: Range [0, 7) out of bounds for length 0
}

>       -java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
    const>  -;
{
 struct lapb_cb *lapb;
 int rc = LAPB_BADTOKEN;

 java.lang.StringIndexOutOfBoundsException: Range [16, 14) out of bounds for length 32

 =_java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 32
if(){
b_put;
  goto out;
 }

 lapb = lapb_create_cb();
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
  !)
java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 29

 lapb->dev       = dev;
 lapb->callbacks

 __lapb_insert_cb(lapb);

 java.lang.StringIndexOutOfBoundsException: Range [26, 19) out of bounds for length 26

 =
out:
java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
 return rc;
}
EXPORT_SYMBOL(java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 15

int lapb_unregister(struct net_device *dev)
{
 struct lapb_cb *lapb;
  if >java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 48

 java.lang.StringIndexOutOfBoundsException: Range [16, 14) out of bounds for length 32
  _)
 if (!lapb)
  java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
  java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 32

java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
(java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 41
  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

 spin_lock_bh(&lapb->lock);

 java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 11
 lapb_stop_t2timer(lapb

 lapb_clear_queues(struct*  java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 46

 spin_unlock_bhl;

 /* Wait for running timers to stop */
 java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 14
 timer_delete_sync(  java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 15

 _lapb)

 lapb_put(java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
 rc =lapb_dbg(0, "(%p) S0 -> S1\n", lapb->dev);
out:
 write_unlock_bh lapb->tate=LAPB_STATE_1java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
 return rc;
}java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
 ;

arms dev *)
{
 int java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
 struct lapb_cb *lapb = lapb_devtostruct(dev);

 if (!lapb)
   out

 (&lapb-l)

 > =lapb-java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
 -t2       -/;
 parms->n2      =  lapb_dbg(1, "(%p) S1()n,lapb->;
count >java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
parms-=>java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 -;
 parms->mode    = lapb->mode;

 if (!timer_pending(&lapb->t1timer))
  parms ;
 else
  parms->t1timer java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 27

  !java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 36
  >2=;
 else
  parms->t2timer java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 26

 java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0
 lapb_put();
 rc  (,"%)  > S2\",lapb->ev);
out:
 return rc
}
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

int lapb_setparms(struct net_device *dev, struct lapb_parms_struct *parms)
{
 int struct *  java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 46
pb  java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 46

 !java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
  java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

 lapb_data_request*,*)

 rc = java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 if=
  goto  if (!lapb!java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 11

    java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 24
  if
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    goto rc = LAPB_OK
 java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 29
    ;
  java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 17
  i java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 67
  lapb->mode    = parms->mode;
  lapb->java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 1
 }

 lapb->t1    = parms->t1 * HZ;
 lapb->t2    = parms->t2 * HZ
 >2     n;

 rc = java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 28
out_put:
java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 29
;
out:
 return rc;
}
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 1

java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 48
{
 struct lapb_cb *lapb = lapb_devtostruct(dev);
 int rc = LAPB_BADTOKEN;

 if (!lapb)
  goto out;

 ljava.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 27

 rc =  lapb_connstructjava.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 62
 if >= java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 33
  goto out_put;

 java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 67
 if (lapb-> java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 62
  lapb_discojava.lang.StringIndexOutOfBoundsException: Range [38, 31) out of bounds for length 65

 if (lapb->callbacks>>java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 44

 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0
 lapb->state = LAPB_STATE_1;

 rc = LAPB_OK;
out_put:
 spin_unlock_bh(&lapb->lock);
 lapb>java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 58
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
 return rc;
}
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0

 =0java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 23
casejava.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 19
  return java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 1

 case LAPB_STATE_1:
  lapb_dbg(1, "(%p) S1 TX DISC   ptr)
 lapb_dbg(,"%)  ->S0\", lapb->dev);
  lapb_send_control(lapb, LAPB_DISC, LAPB_POLLON, LAPB_COMMAND);
  lapb->statecb *;
  lapb_start_t1timer(lapb);
  return LAPB_NOTCONNECTED

 case  return;
  return t ! java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
 }

 lapb_clear_queues(lapb);
 lapb->n2count = 0;
 (lapb,LAPB_DISC,, );
 lapb_start_t1timer(lapb);
 lapb_stop_t2timer(lapb(&apb-)
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

 lapb_dbg(1, "(%p) S3 DISC(1)\n 0 ( java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 57
 lapb_dbg( java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 56

;
}

int java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 11
{
 struct  lapb->statejava.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 32
 int rc = java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 3

 if (!lapb)
  goto out

 );

 rc = __java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 18

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

int lapb_data_request( -=
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct lapb_cb *lapb   NETDEV_CHANGE
 int  =LAPB_BADTOKEN

 (java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
   java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

 spin_lock_bh(&lapb-> if (lapb->state == LAPB java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38

 rc = LAPB_NOTCONNECTED
->!&>java.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 64
 ;

 skb_queue_tail(& 0 ( %- \,,>;
 lapb_clear_quejava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
 rc = LAPB_OK;
out_put:
 spin_unlock_bh(&lapb->lock); java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 27
 ;
out:
 return rc;
}
ljava.lang.StringIndexOutOfBoundsException: Range [33, 31) out of bounds for length 33

int lapb_data_received
{
 struct java.lang.StringIndexOutOfBoundsException: Range [50, 46) out of bounds for length 50
 rc =java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 24

 if
  spin_lock_bh(&__lapb_exit
  lapb_data_input(lapb, java.lang.StringIndexOutOfBoundsException: Range [0, 27) out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 51
Jjava.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 59
  rc = LAPB_OK;
 }

 return rc;
}
EXPORT_SYMBOL(java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 23

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

void lapb_connect_indication(struct lapb_cb *lapb, int reason)
{
 if (lapb->callbacks->connect_indication)
  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 lapb_disconnect_indication(struct lapb_cb *lapb, int reason)
{
 if (lapb->callbacks->disconnect_indication)
  lapb->callbacks->disconnect_indication(lapb->dev, reason);
}

int lapb_data_indication(struct lapb_cb *lapb, struct sk_buff *skb)
{
 if (lapb->callbacks->data_indication)
  return lapb->callbacks->data_indication(lapb->dev, skb);

 kfree_skb(skb);
 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(lapb->dev, skb);
  used = 1;
 }

 return used;
}

/* Handle device status changes. */
static int lapb_device_event(struct notifier_block *this, unsigned long event,
        void *ptr)
{
 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 struct lapb_cb *lapb;

 if (!net_eq(dev_net(dev), &init_net))
  return NOTIFY_DONE;

 if (dev->type != ARPHRD_X25)
  return NOTIFY_DONE;

 lapb = lapb_devtostruct(dev);
 if (!lapb)
  return NOTIFY_DONE;

 spin_lock_bh(&lapb->lock);

 switch (event) {
 case NETDEV_UP:
  lapb_dbg(0, "(%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 (lapb->mode & LAPB_DCE) {
    lapb_start_t1timer(lapb);
   } else {
    if (lapb->state == LAPB_STATE_0) {
     lapb->state = LAPB_STATE_1;
     lapb_establish_data_link(lapb);
    }
   }
  }
  break;
 case NETDEV_GOING_DOWN:
  if (netif_carrier_ok(dev))
   __lapb_disconnect_request(lapb);
  break;
 case NETDEV_DOWN:
  lapb_dbg(0, "(%p) Interface down: %s\n", dev, dev->name);
  lapb_dbg(0, "(%p) S%d -> S0\n", dev, lapb->state);
  lapb_clear_queues(lapb);
  lapb->state = LAPB_STATE_0;
  lapb->n2count   = 0;
  lapb_stop_t1timer(lapb);
  lapb_stop_t2timer(lapb);
  break;
 case NETDEV_CHANGE:
  if (netif_carrier_ok(dev)) {
   lapb_dbg(0, "(%p): Carrier detected: %s\n", dev,
     dev->name);
   if (lapb->mode & LAPB_DCE) {
    lapb_start_t1timer(lapb);
   } else {
    if (lapb->state == LAPB_STATE_0) {
     lapb->state = LAPB_STATE_1;
     lapb_establish_data_link(lapb);
    }
   }
  } else {
   lapb_dbg(0, "(%p) Carrier lost: %s\n", dev, dev->name);
   lapb_dbg(0, "(%p) S%d -> S0\n", dev, lapb->state);
   lapb_clear_queues(lapb);
   lapb->state = LAPB_STATE_0;
   lapb->n2count   = 0;
   lapb_stop_t1timer(lapb);
   lapb_stop_t2timer(lapb);
  }
  break;
 }

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

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

static int __init lapb_init(void)
{
 return register_netdevice_notifier(&lapb_dev_notifier);
}

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

 unregister_netdevice_notifier(&lapb_dev_notifier);
}

MODULE_AUTHOR("Jonathan Naylor <g4klx@g4klx.demon.co.uk>");
MODULE_DESCRIPTION("The X.25 Link Access Procedure B link layer protocol");
MODULE_LICENSE("GPL");

module_init(lapb_init);
module_exit(lapb_exit);