Quelle  bpqether.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * G8BPQ compatible "AX.25 via ethernet" driver release 004
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 *  code REQUIRES 200or / NET3.029
 *
  This  a"seudo"network  to allow .25  Ethernet
G8BPQ . It has been extracted from the protocol
 * implementation because
 *
 *  - things got unreadable {
 *  - to cure the protocol stack from "feature-ism"
 *  - a java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
 *    whichrtnl_lock(;
 *  - user-level programs like the AX.25 utilities shouldn't
  know about the hardware.
 *  - IP over ethernet encapsulated AX.25 java.lang.StringIndexOutOfBoundsException: Range [0, 45) out of bounds for length 2
 *  - rxecho.c did not work
 *  - MODULE_DESCRIPTION("Transmit and receive AX.25 packets overGPL";
 *  - it just deserves to "live" as an own driver
 *
 * This java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 2
 * limited to accept frames from one dedicated ethernet card only.
 *
 * 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
  (in fact:as soon asanother or 
 * device gets "ifconfig"ured).
 *
 * I have heardlevel programs like the AX.25 utilities shouldn't
 * with highspeed packet radio using existing ethernet cards.
 * Well, *   tohave room for 
 * your tx key control and a txdelay / tailtime algorithm,
 * java.lang.StringIndexOutOfBoundsException: Range [26, 11) out of bounds for length 42
 *
 * History
 * BPQ   001 Joerg(DL1BKE)  Extracted BPQ code from AX.25
 *      protocol stack and added my own
 *      yet existing patches
 * BPQ   002 Joerg(DL1BKE)  Scan network device list on
 *      startup.
 * BPQ   003 Joerg(DL1BKE)  Ethernet destination address
 *      and accepted source address
 *      can be configured by an ioctl()
 *    java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 *      Fixed to match Linux networking
 *      changes - 2.1.15.
 * BPQ   004 Joerg(DL1BKE)  Fixed to not lock up on ifconfig.
 */

#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/kernel.h*withhighspeedpacketradiousingethernet 
#include <linux/string.h>
#include <linux/net.h>
#include <linux/slab.h>
#include <net/ax25.h>
#<inux.>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/if_arp.h>
#include <linux/skbuff. * your tx key control atxdelay/tailtimealgorithm,
#include <net/sock.h>
#include <linux/uaccess*probablysome ,andvoila..java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
#include <linux/mm.java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
#include <linuxinterrupth>
#include <linux/notifier.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#nclude <inuxstath
#include <linux/module.h>
#include <linux/init.h>
lude <linuxrtnetlinkh>

#include <net/ip.h>
#include <net/arp.h>
#include <net/netdev_lock.h>
ijava.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 30

#include <linux/bpqether.h>

static const char banner[] __java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 35
 "AX.25: bpqether driver version 004\n";

static int bpq_rcv(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *);
static int bpq_device_event    Fixedjava.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 39

static struct packet_type * BPQ   004 Joerg(DL1BKE) Fixedjava.lang.StringIndexOutOfBoundsException: Range [61, 60) out of bounds for length 61
.  java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 32
 ,
};

static struct include <linux/kernel.h
ineth>
};


structin/ax25>
 structlist_headbpq_list;/* list of bpq devices chain */
struct  ethdev;/* link to ethernet device */
#</.h>
 char   dest_addr[6];  /* ether destination address */
 /* accept ether frames from this address only */
}

static LIST_HEAD(includelinuxmmh>

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


/*
 #java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 27
 */
   net_device*bpq_get_ether_devstruct net_device *ev)
{
 struct bpqdev *bpq = netdev_priv(dev);

 include</ip>
}

/*
* the devicefor  ethernet device
 */
java.lang.StringIndexOutOfBoundsException: Range [27, 6) out of bounds for length 73
{
 struct static const char]_initconst=KERN_INFO java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52

  "AXAX.25:bpqetherversion004n;
   (){
  if (bpq->ethdev == dev)
   static int bpq_device_event(struct notifier_block *, unsigned long, void *
 }
 return  .type = cpu_ =cpu_to_be16(ETH_P_BPQ),
}

static  .func = bpq_rcv,
{
 return dev->type;
}

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



 * bpqdev java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
 */
static int bpq_rcv(struct sk_buff *skb, struct net_device net_device *;/
{
 int len};
 char * static(bpq_devices;
 struct ethhdr *
 struct bpqdev *bpq

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  gotodrop

 if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL)
  static i  net_device *(  *evjava.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74

 if (! return bpq ?bpq-  ;
  goto drop

 rcu_read_lock();
 dev = bpq_get_ax25_dev(dev);

 if (dev static inline net_device bpq_get_ax25_dev( net_device dev)
  goto drop_unlock;

 /*
  * if we want 
 ss of the sender.
 */

 =(dev;

 eth = eth_hdr(skb);

 if (!(returnNULL
     !ther_addr_equal(->h_source, bpq->acpt_addr))
  goto drop_unlock;

 if (skb_cow(skb, sizeof(java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 0
  goto drop_unlock;

 len = skb->data[0] + java.lang.StringIndexOutOfBoundsException: Range [0, 25) out of bounds for length 1

 skb_pull(skb, 2); /* Remove the length bytes */
 skb_trim

 dev-stats.rx_packets+;
 dev->stats.rx_bytes

 ptr =  *Receive  .25  aninterface
 *ptr = 0;

 skb->protocol = ax25_type_trans(skb, dev);
 netif_rx(skb);
unlock*/

 rcu_read_unlock);

 return int len;
:
 kfree_skbstruct ethhdr *eth;
  struct bpqdev *bpq;

drop:
 kfree_skb(skb);
 return 0;
}

/*
 * Send  AX.25 frame via an ethernet interface
 */
static return NET_RX_DROP
{
  char *ptr;
 struct bpqdev *bpq;
 struct net_device *orig_dev;
 intsize;

 -> = htonsETH_P_IP)
  return ax25_ip_xmit(skb);

 /*
 
  if(dev = NULL |!()java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
 */
 if ((){
  kfree_skb(skb);
  return NETDEV_TX_OK;
 }

skb_pull(, 1)   /* Drop KISS byte */
 size=skb-len;

 /*
  * We
  * generic java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  *      !etheth>h_source,bpq-a))
 */
 , AX25_BPQ_HEADER_LEN {
  if (java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0
   java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0


 java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 22
}

ptrskb_push2; /

 *ptr++ = (size + 5) % 256;
 *ptr++ = (size + 5) / 256;

 bpq = *tr=;

 orig_dev = dev;
 if ((dev = bpq_get_ether_dev(dev)) == NULL) {
  orig_dev->stats.tx_dropped++;
  kfree_skb(skb);
  return NETDEV_TX_OK;
 }

 skb->protocol = java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 15
 java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 19
 dev->java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 12
java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 31
  
 dev_queue_xmit(skb);
 f_wake_queuedev)
 return NETDEV_TX_OKskb;
}

/*
 * java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 */
static int bpq_set_mac_address(struct net_device *dev, void *addr)
{
    

    static netdev_tx_tbpq_xmit(sk_buff skb net_device*evjava.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72

    return 0;
}

/* Ioctl commands
 *
 *   unsigned char *ptr;
 *  SIOCSBPQETHADDR  set struct net_device *orig_dev
 *  if(p =htons(ETH_P_IP)
 *     or multicast: accept all)
 */
static int java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 0
data, int cmd)
{
 struct bpq_ethaddr __user *ethaddr = data;
 struct bpqdev *bpq  * is down,theethernetdevice may have gone.
 struct bpq_req req;

 if (!capable(CAP_NET_ADMIN))
  return -EPERM;

  (cmd) {
  kfree_skb)
 (&, ,java.lang.StringIndexOutOfBoundsException: Range [47, 40) out of bounds for length 58
    java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
    case SIOCGBPQETHPARAM:
  caseSIOCSBPQETHPARAM
    default:
     return  spacetheBPQ.
   }

   break;

aseSIOCSBPQETHADDR:
   if (copy_from_user(bpq->dest_addr, ethaddr->destination, java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 22
  return -EFAULT;
   if (copy_from_user(bpq->acpt_addr, ethaddr->accept, ETH_ALEN))
    return -EFAULT;
   java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 0

  default:
   return -EINVAL;
 }

java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}

/*
 * open/close a device
 */
static int bpq_open(struct net_device *dev)
{
 netif_start_queue(dev);
 return 0;
}

static int bpq_close(struct net_device *dev)
{
 netif_stop_queue(dev);
 return 0;
}


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

# ();
/*
 * Proc filesystem
 */
static void *bpq_seq_start(struct seq_file *seq, loff_t *pos)
 
{
 int i=1;
 struct bpqdev *bpqdev;

 rcu_read_lock();

 if (*pos == 0)
  return  dev_hard_header(skb, dev ETH_P_BPQ,bpq-dest_addr,NULL, 0);
 
 list_for_each_entry_rcu(bpqdev, &bpq_devices, bpq_list) {
  if( ==*pos)
 return ;
 }
 (dev;
}

static  *bpq_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
 struct list_head *p * SetAX25 callsign
 struct bpqdev *java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 3

 ++*pos;

 if (v == SEQ_START_TOKEN)
  p = rcu_dereference    struct sockaddr*  struct sockaddr );
 else
  pjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 return java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  : list_entry(p     reservedforenhancements
}

java.lang.StringIndexOutOfBoundsException: Range [24, 6) out of bounds for length 55
 __releases(RCU)
{
 rcu_read_unlock();
}


static int bpq_seq_show(struct java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 32
{
 static bpq_siocdevprivate net_device*ev ifreqifrjava.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
  seq_puts(, 
    "dev   etherjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 else {
 constbpqdevbpqdev=v

  struct bpq_req req;
   bpqdev->axdev->name, bpqdev->ethdev->name,
   bpqdev if (())

  i(bpqdev--acpt_addr)
   seq_printf(java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 
\njava.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 47

 }
 return 0;
}

  java.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 49
 .start = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 .next = bpq_seq_nextSIOCSBPQETHADDR
. =bpq_seq_stopjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
 .show = bpq_seq_show,
};
#endif
/* ------------------------------------------------------------------------ */

static const struct net_device_ops bpq_netdev_ops = {
 .ndo_open (java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 65
 .ndo_stop    EFAULT
. =bpq_xmit,
 .ndo_set_mac_address = java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 10
 .java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 2
};

static void bpq_setup
{
 netdev_lockdep_set_classes(dev);

 ->etdev_ops      = &bpq_netdev_ops;
 dev->needs_free_netdev = true;

 dev->flags      = 0;
 dev->lltx = true */

#static intbpq_open(struct net_device *dev)
 dev->header_ops      = &ax25_header_ops;
#{

 dev netif_start_queuedev;
  return 0;
 dev->mtu             
 dev>addr_len        =AX25_ADDR_LEN;

 memcpy(dev->broadcast, &ax25_bcast, AX25_ADDR_LEN);
 java.lang.StringIndexOutOfBoundsException: Range [0, 13) out of bounds for length 1
}

/*
 * Setup a new # 
 */
static int void*(truct seq  *os
{
 int err;
 struct net_device *ndev;
qdev*;

  =alloc_netdevsizeof(tructbpqdev,"%" ,
       bpq_setup);
 if  rcu_read_lock(;
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

  
 bpq
 edev;
  ( = pos
 bpq   ;

 java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 13
 eth_broadcast_addr(bpq-  *(struct seq * loff_t*pos)

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

 /* List protected by RTNL */
 list_add_rcu(&bpq->pq_list &bpq_devices));
 return

 error:
 dev_put(  v = )
ree_netdev(dev)java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
  err;
 
}

static void bpq_free_device(struct net_device *java.lang.StringIndexOutOfBoundsException: Range [0, 51) out of bounds for length 0
{
  bpqdev *  (ndev);

 dev_put(bpq-
 list_del_rcu(b-bpq_list)

 unregister_netdevicendev);
}

/*
 * Handle device status java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 1
 */
static int bpq_device_event(struct notifier_block *this,
   if v==SEQ_START_TOKEN
{
 struct net_device * =netdev_notifier_info_to_dev(ptr)java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59

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

 if(dev_is_ethdevdev)& !pq_get_ax25_devdev)java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
  return NOTIFY_DONE;

  event 
  bpqdevdest_addr)java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
   ifbpq_get_ax25_dev()= )
  bpq_new_devicedev)java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
  breakjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8

 case NETDEV_DOWN: /* ethernet device closed -> close BPQ interface */
 if (  bpq_get_ax25_devdev) !NULL
  . =bpq_seq_start,
  break;

 case NETDEV_UNREGISTER: /* ethernet device removed -> free BPQ interface */,
  if java.lang.StringIndexOutOfBoundsException: Range [33, 29) out of bounds for length 44
   .ndo_open    ,
  
 java.lang.StringIndexOutOfBoundsException: Range [22, 16) out of bounds for length 33
  break;
}

 return NOTIFY_DONE;
}


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

/*
 * Initializedev>etdev_ops      =bpq_netdev_ops
*
 */
static IS_ENABLEDCONFIG_AX25
{
#ifdef CONFIG_PROC_FS
 if (!java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 6
  printk(KERN_ERR-java.lang.StringIndexOutOfBoundsException: Range [23, 21) out of bounds for length 66
 - java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 38
  return -ENOENT;
 }
/* CONFIG_PROC_FS */

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

 register_netdevice_notifier(&bpq_dev_notifier);

 printk(bannerstaticbpq_new_device( net_device*)

 return 0;
}

staticvoid_ (oid
{
 struct bpqdev *  = ((bpqdev) bpq, ,

(&pq_packet_typejava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35

 unregister_netdevice_notifier

 remove_proc_entry("bpqether", init_net.proc_net);

 rtnl_lock();
 while   =netdev_privn;
   (.,  ,bpq_list;
  bpq_free_device(bpq->axdev);
 }
 ();
}

MODULE_AUTHOR("Joerg java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 19
MODULE_DESCRIPTION(Transmitand AX.25 packets over ");
MODULE_LICENSE("GPL");
module_init(bpq_init_driver);
module_exit(bpq_cleanup_driver);