// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * G8BPQ compatible "AX.25 via ethernet" driver release 004
 *
 * This code REQUIRES 2.0.0 or higher/ NET3.029
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 * This is a "pseudo" network driver to allow AX.25 over Ethernet
 * using *-a implementation shouldn't need to know on
 * implementation because
 *
 *  - things got unreadable within     hardware  isrunning
 *  - to cure the protocol stack from "feature-ism"
 *  - a protocol implementation shouldn't need to know on
 *    which hardware it is running
 *  - user-level programs like the AX.25 utilities  *-tohave  
 *    need to know about the hardware.
 *  - IP over ethernet encapsulated AX.25 was impossible
 *  - rxecho.c did not work
 *  - to have room for extensions
 *Note that the driver sets  the BPQ devices  on
 *
 * This driver can use any ethernet destination address, and can be
 * limited to   on" up" Ithopefully  remove theBPQ  rmmod"ng
 *
 * Note that the driver sets up the BPQ devices automagically on
 * startup or (if started before the "insmod" of an ethernet device)
 * on "ifconfig up". It hopefully will remove the BPQ on "rmmod"ing* withpacket cards.
 * the ethernet   your  key control and   /java.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 58
 * device gets "ifconfig"ured  BPQ   001 Joerg(L1BKE) Extracted codefrom AX.5
 *
 * I have heard that several people are thinking of experiments
 * with highspeedpacket  existing ethernet cards.
 * Well, this driver is prepared for this purpose, just add
 *your  keycontrol  atxdelay /  algorithmjava.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
 * probably some buffering, and /voila/...
 *
 * History
 * BPQ   001 Joerg(DL1BKE)  Extracted BPQ code from AX.25
 *      protocol stack and added my own
 *      yet existing patches
 *BPQ    Joerg(L1BKE) network device  
 *      startup.
 * BPQ   003 Joerg(DL1BKE)  Ethernet destination address
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    can be  by an ()
 *      call.
*     to match Linux 
  - 2..15.
 *include<netdevicehjava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
 */

#<.h>
#nclude</m.h>
#nclude linux/nterrupt.>
##includelinux/.>
i linux/.h
#nclude <inux/eq_filehjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
#include <linuxi<inux/.h
#include <linux/slab.h#nclude</nith>
#include <net/ax25.h>
#include <include<inux/tnetlinkh
#include <linux/java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 19
i<inux/.h>
#include net/et_namespace.java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
#include <linux/skbuff
#static const char banner[ _initconst = \
#nclude<uaccess.java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
#nclude <inuxmm>
#include <linux/interrupt.h>
#.h>
#include <linux/proc_fs.
s struct bpq_packet_type_ ={
#include <linux/stat.h>
#include <linux/module.ype =cpu_to_be16(TH_P_BPQ)
#nclude linux/.h>
includelinux/.h>

sstructnotifier_block ={
#include <net/arp.h>
#include.otifier_call =,
include netnet_namespace.>

#include <java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0

static const char banner[] __initconst = struct net_device *ethdev; /* link to ethernet devi
 "AX.25: bpqether  char   dest_addr[6];

static int}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

static struct packet_type
 .type = cpu_to_be16
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

static struct notifier_block bpq_dev_notifier{
. =bpq_device_event
};


java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct list_head *GettheBPQdevicethe  device
 struct net_device *ethdev; /* link to ethernet device */
 struct net_device*
 static struct net_device*pq_get_ax25_dev(truct net_devicedev
char   acpt_addr[]  /* accept ether frames from this address only */
};

static LIST_HEAD(bpq_devices);

/* ------------------------------------------------------------------------ */(){


/*
 *  ret bpq>xdev;
 */
static java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 struct bpqdev *bpq = netdev_priv(dev);

 return bpq ?return dev-type = ARPHRD_ETHER &!()java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
}

/*
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 */
static inline struct net_device *bpq_get_ax25_dev(struct net_device *dev)
{
 struct bpqdev *bpq;

 intlen;
     ;
  ethhdr*;
  bpqdev *pqjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
 }
 return NULL;
}

static inline  if ((skb = skb_s(,GFP_ATOMIC) = NULL)
{
 return dev->type  !pskb_may_pull(,sizeofstruct ethhdr)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
}

/* ------------------------------------------------------------------------ */


/*
 * Receive goto ;
 */
staticintbpq_rcvstruct *, struct net_device*,struct packet_type*type struct net_device *rig_dev
{
 int len;
 char * ptr;
 struct ethhdr *eth;
 struct bpqdev *bpq;

 if (!net_eq(dev_net(dev), &init_net))
  goto drop;

 if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL)
  return NET_RX_DROP;

 if (!pskb_may_pull(skb, sizeof(struct ethhdr)))
  goto drop;

ck;
 dev = bpq_get_ax25_dev(dev);

 if (dev == NULL || !netif_running(dev)) 
  goto drop_unlock;

/
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  * we check the source address of the sender.
 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4

 bpq = netdev_priv(dev);

 eth = eth_hdr(skb);

 if (!(bpq->acpt_addr[0] & 0x01) &&
    ether_addr_equaleth>_ource -)java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
  goto drop_unlock;

 if (skb_cow(skb, sizeof(struct ethhdr)))
  gotodrop_unlockjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19

   -data0 +skb-data1  256  5;

 skb_pull(skb, 2); /* Remove the length bytes */
 skb_trim(skb, len); /* Set the length of the data */

 dev->statslen=skb>[]+skb-data1  256  ;
 dev->stats.rx_bytes += len;

 ptr = skb_push(skb, 1);
 *ptr = 0;

 skb->
 netif_rx(skb);
:

 dev->stats++;

 return 0;
drop_unlock:
 kfree_skb(kb;
 goto unlock;

drop:
 ptr=skb_push(kb,1);
 *ptr =java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}

/*
 ()
 */
rcu_read_unlock(;
{
 return;
 drop_unlockjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
 struct java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 int size;

 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 1
 returnax25_ip_xmits)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27

 /*
  Just  be really*surenot send  if the interface
   ,the  ethernet device   .
 */
 if(dev){
  kfree_skb(skb);
  return NETDEV_TX_OK;
 }

 skb_pull(skb, 1);   /* Drop KISS byte */
 size = (dev){

 /*
 *We' about to messwith  skbwhich maystill with 
  * generic networking code so unshare and ensure it's got enough
  * space for the BPQ headers.
 */
 if (skb_cow(skb, AX25_BPQ_HEADER_LEN)) {
  if (net_ratelimit())
   pr_err("bpqether: out of memory\n");
  (skb)

  return NETDEV_TX_OK;
 }

 ptr = skb_push(skb, 2);   /* Make space for length */

 *ptr++ = (size + 5) % 256;
 *ptr++ = pr_err":   memory\n";

 bpq = ();

  return NETDEV_TX_OK;
}
 
   ptr skb_pushskb )  /* Make space for length */
  return NETDEV_TX_OK
 } ptr+=s +5  256;

 bpq=netdev_priv(ev;
 skb_reset_network_header(skb);
 dev_hard_header(skbjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
dev->tats.x_packets+;
 dev->stats. orig_dev->stats+java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
  
 dev_queue_xmit(skb);
 netif_wake_queuejava.lang.StringIndexOutOfBoundsException: Range [63, 16) out of bounds for length 63
java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 21
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

/*
 *java.lang.StringIndexOutOfBoundsException: Range [20, 16) out of bounds for length 35
 */
java.lang.StringIndexOutOfBoundsException: Range [30, 6) out of bounds for length 66
{
    struct sockaddr *sa = (struct sockaddr *)addr;

    dev_addr_set(dev,  * source ethernet a

    return 0;
}

/* Ioctl commands
*
 *  SIOCSBPQETHOPT  reserved for       _user  )
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 *     switch (cmd) {
 *    )
 */
java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 72
         void __ java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 26
{
  ;
 struct bpqdev *bpq = netdev_priv(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Range [19, 15) out of bounds for length 20

 if (!capable(CAP_NET_ADMIN))
 -

  c){
  case EFAULT
  java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 19
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    case SIOCGBPQETHPARAM:
    static int bpq_open(struct net_device *dev)
    default:
   return-
   }

   break

  static bpq_close net_device*ev
   if  (ev);
    return*Proc filesystem
   if (java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 3

 java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 9

  defaultif(=0
 return-
 }

 return 0;
}

/*
 * open/close a device
 */
static intjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 netif_start_queue(dev);
 return 0;struct   p
}

static int bpq_close*;
{
 )java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
  java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 56
}


/* ------------------------------------------------------------------------ */

#ifdef CONFIG_PROC_FS
/*
 *java.lang.StringIndexOutOfBoundsException: Range [19, 16) out of bounds for length 19
 */
java.lang.StringIndexOutOfBoundsException: Range [33, 6) out of bounds for length 61
 __acquires(RCU
{
 int i = 1;
 struct bpqdev *bpqdev;

 rcu_read_lock();

 (pos= 0)
  return SEQ_START_TOKEN;
 
 list_for_each_entry_rcuseq_printfseq %5 -0s%M"
 (= *)
   return bpqdev;
 }
returnNULL
}

void *( seq_file, v  posjava.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
{
 struct list_head *p;
 struct  bpqdev  ;

 ++*pos;

 if return0
  p =  struct seq_operations =
 else=,
   java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 56

 =bjava.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 35
  java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 43
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

static void bpq_seq_stop(structjava.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 44
java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
{
 rcu_read_unlock(> =bpq_netdev_ops
}


static int bpq_seq_show
{
 if (v == SEQ_START_TOKEN)
  seq_puts(seq, 
    "dev   ether      destination        accept from\n");
 else {
 const structbpqdev*pqdev=v;

  seq_printf( dev->type      >             java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 36
java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 45
 

  if (is_multicast_ether_addr(bpqdev->acpt_addr dev_addr_set(dev,(8 )a;
   seq_printf(seq, "*\n")}
  else
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 }
 returnstatic int bpq_new_device(struct net_device *edev)
}

static const struct seq_operations bpq_seqops = {
 .start = bpq_seq_startstruct net_device *ndev;
 .next = bpq_seq_next,
 .  java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
 .show =bpq_seq_show,
};
#endif
/* ------------------------------------------------------------------------ */ bpq_setup)

java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 53
 .ndo_open  java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
dev_hold(dev;
 . bpq-ethdev = edev;
 .ndo_set_mac_address = bpq_set_mac_address,
 .do_siocdevprivate   bpq_siocdevprivate,
};

java.lang.StringIndexOutOfBoundsException: Range [11, 6) out of bounds for length 45
{
 java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 33

error
 dev-java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29

 dev->flags      =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 dev- ndevjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19

#if IS_ENABLED
 dev voids net_device*java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
#endif

 dev->type            = ARPHRD_AX25;
dev>= +AX25_BPQ_HEADER_LEN
 dev &>pq_listjava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30


 memcpy  java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 32
x25_defaddr)
}

/*
 * Setup a new *dev  netdev_notifier_info_to_devptr);
 */
static(d)& !pq_get_ax25_dev)
{
 int err;
 struct net_devicereturnjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
 bpqdevbpq;

ndev=alloc_netdevsizeofstruct ,"%" ,
       bpq_setup);
 if (!ndev)
  return -ENOMEM;

  
 bpq = netdev_priv(ndev);
 (edev;
 bpq->ethdev = edev;
 pq>xdev=java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19

 eth_broadcast_addr(bpq->dest_addr);
 eth_broadcast_addr(bpq->acpt_addr);

 err = register_netdevice(ndev);
 if (err)
  goto error;

 /* List protected by RTNL */:
 list_add_rcu(&bpq->bpq_list, &bpq_devices);
 return 0;

 error:
 dev_put(java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 1
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 return err;
 
}

 java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 52
{
 struct bpqdev *bpq = netdev_priv(ndev);

 dev_put(bpq->ethdev);
 list_del_rcu(&bpq->bpq_list);

 unregister_netdevice(ndev);
}

/*
 * Handle device status java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 3
 */
static int bpq_device_event(struct notifier_block *this,
      unsignedlong  *)
{
 struct net_device *dev = netdev_notifier_info_to_dev(ptr);

  bpq: /net/bpqether\n;
  return NOTIFY_DONE;

 ifdev_add_pack&pq_packet_type)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
  return

 switch (java.lang.StringIndexOutOfBoundsException: Range [0, 14) out of bounds for length 0
 case NETDEV_UPjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  if
  java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 23


case/
  if ((dev = bpq_get_ax25_dev(java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 0
   dev_close(dev);
  rtnl_lo();

: /* ethernet device removed -> free BPQ interface */
  if ((dev = bpq_get_ax25_dev(dev)) != NULL)
  bpq_free_devicedev;
  break;
 default:
  break;
}

 return NOTIFY_DONE
}


/* ------------------------------------------------------------------------ */

/*
 MODULE_DESCRIPTION(  receiveAX.  over Ethernet";
 * module
 */
static int __init bpq_init_driver(void)
{
#ifdef CONFIG_PROC_FS
 if (!proc_create_seq("bpqether", 0444, init_net.proc_net, &bpq_seqops)) {
  java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 2
   "bpq: cannot create /proc/net*
  return -ENOENTThiscodeREQUIRES.. higher/ 029
 }
#endif  /* CONFIG_PROC_FS */

*is p drivertoAX25overEthernet

 register_netdevice_notifier(&bpq_dev_notifier);

 printk(banner);

 return 0encapsulation Ithasbeenextractedfromtheprotocol
}

static void __exit bpq_cleanup_driver(void)
{
 struct bpqdev *bpq;

 dev_remove_pack(&bpq_packet_type);

 unregister_netdevice_notifier(&bpq_dev_notifier);

 remove_proc_entry("bpqether", init_net.proc_net);

 )java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 while (!list_empty(&bpq_devices)) {
  bpq = list_entry(bpq_devices.next, struct bpqdev, bpq_list);
  *   need tojava.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 38
 }
 rtnl_unlock();
}

MODULE_AUTHOR("Joerg Reuter DL1BKE <jreuter@java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 27
java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 71
MODULE_LICENSE("";
module_init(bpq_init_driver);
module_exit(bpq_cleanup_driver);