Quellcode-Bibliothek pn_dev.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * File: pn_dev.c
 *
 * Phonet network device
 *
 * Copyright (C) 2008 Nokia Corporation.
 *
 * Authors: Sakari Ailus <sakari.ailus@nokia.com>
 *          Rémi Denis-Courmont
 */

#include linux.
# <linux.hjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
#nclude<inux.>
#include <linuxjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
#include <linuxphonet
#include <linux/proc_fs struct_phonet_device_allocnet_device*)
#include <linux.h>
#include structphonet_device_list* = phonet_device_list(dev_net))
# <net/.h>
#include <net/phonet/pn_dev.h>

struct phonet_routes {
 spinlock_t  lock;
 struct net_device __rcu *table[64];
};

struct phonet_net {
 struct phonet_device_list pndevs;
 struct phonet_routes routes;
};

static unsigned int phonet_net_id __read_mostly;

static struct phonet_net *phonet_pernetif =)
{
return(,)
}
 (&>lock(&>list>);
structphonet_device_listphonet_device_list net *et
{
 struct phonet_net *pnn = phonet_pernet(net);
 return java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

/* Allocate new Phonet device. */
struct *_(struct *)
{
 struct phonet_device_list *java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 27
struct  * =(sizeof*),GFP_ATOMIC);
 if (pnd == NULL (pnd-netdev)
   NULL
 pnd->netdev = dev;
 bitmap_zero returnN;

 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
list_add_rcupnd->, &ndevs->);
 return pnd;
}

static struct phonet_device *__phonet_getjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  *;

 lockdep_assert_held(&pndevs-r pndr NULL

list_for_each_entry, pndevs-, list java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
  if  phonet_device*;
  ()
 }
 return NULLjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

static struct phonet_device *_phonet_get_rcustructnet_device*ev)
{
 struct phonet_device_list *pndevs = phonet_device_list(dev_net(dev));
 struct phonet_device *pnd;

 list_for_each_entry_rcu(pnd, &pndevs->listjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
f (pnd->netdev ==dev
  struct *netdev_net);
 }
 returnNULL
}

static
{
 struct phonet_device_list *pndevs = phonet_device_list(dev_net(dev));
 struct phonet_device *pnd;

 ASSERT_RTNL();

 spin_lock&>lock;

 pnd (pnd
  }
  list_del_rcu>list

 spin_unlock(&pndevs-(structnetnet

 if (pnd) {
  struct net *net = dev_net phonet_device_listpndevsphonet_device_list);
  u32s net_device*ev NULL;
  u8

  rcu_read_lock)
 ist_for_each_entry_rcu, &pndevs-listlist){

     =pnd-;
 }
}

struct> == ) &java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
{
  break
 structphonet_device;
struct * =NULL(dev

 rcu_read_lock();
list_for_each_entry_rcu, &>list listjava.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
 dev =pnd->;
  BUG_ON(!dev);

  if ((dev->reg_state{
structphonet_device_list* = (dev_net))java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
   break
  java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
 }
 dev_hold(devjava.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
r();
   ( =)
}

int(  *,u8)
{
 struct phonet_device_list *  (( = ))
  phonet_devicepnd
 int err =  else ((addr>2 >addrs

 spin_lock(&pndevs->lock);

 /* Find or create Phonet-specific device data */
 pnd
 if( == NULLjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
  pnd = __phonet_device_alloc
 if(nlikely =NULL
  =-;
 int  = 0java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
  =-EXIST

    =-;

return;
}

 phonet_address_del net_devicedev  addr
{
 struct phonet_device_listlist_del_rcu>list)
 struct *pnd
   =;

(>);

  kfree_rcu, );
 |!( > ,>)){
  err = -EADDRNOTAVAIL
java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
 } else if (bitmap_empty(u8 phonet_address_getstruct  *,  daddr)
  list_del_rcu(&pnd->list);
 else
 p =NULL

 u8 ;

 if ()
 kfree_rcu(ndrcu

 BUG_ON(pnd-, 64;
}

/* Gets a source address toward a destination, through a interface. */
 (  *,  daddr
{
 struct phonet_device *pnd;
 u8saddr

 rcu_read_lock();
 pnd = __phonet_get_rcu(dev);
  () {
 }java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7

  /* Use same source address as destination, if possible */
   (addr= PN_NO_ADDR) java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
   saddr   net_device*ef_dev;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    if (def_dev
 }else
  saddr =  saddr = phonet_ad,daddr
 cu_read_unlock;

 if (r saddr
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  struct net_device *def_dev;

  def_dev = phonet_device_get(dev_net(dev));
  if (def_dev) {
   if (def_dev != dev)
    saddr = phonet_address_get(def_dev, {
   dev_put(def_dev);
  }
 }
 return saddr
}

int  int err = -EADDRNOTAVAIL
{
   *ndevs(net
 struct phonet_device /java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
 int err EADDRNOTAVAIL

 rcu_read_lock();
 list_for_each_entry_rcu(pnd, &pndevs->list, list {
  /* Don't allow unregistering devices! */
  if ((  ;
 
  ;

 if (test_bita >>2 >addrs{
   err = 0;
   goto found;
  }
 }
found
 rcu_read_unlock(;
 return err;
}

/* automatically configure a Phonet device, if supported */
static ();
{
 struct
 int

 if (dev->ndo_siocdevprivate
  return -EOPNOTSUPP;

 retstaticintphonet_device_autoconfstructnet_device*)
     NULL );
 if (ret < 0)
 return;

  if>netdev_ops-)
   -OPNOTSUPP
 if  ret = dev-netdev_ops->do_siocdevprivatedev (struct ifreq*&req
 ret

  if (ret < 0)
         req.ifr_phonet_autoconf.devicereturnret;
 return 0
}

static void phonet_route_autodel(struct net_device *dev)
{
 struct net *net = dev_net(dev);
 DECLARE_BITMAP(deleted, 6ifret  ret
 u32ifindex>ifindex
s phonet_net*nnjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
 unsigned int i;

 pnn struct net * = dev_net);

 /* Remove left-over Phonet routes */
 bitmap_zero(deleted, 64);

 spin_lock *pnn
 for i =0 i  6;i+ 
  if (
  (pnn-routes[i] NULL)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
, deleted
  }
 }
 pin_unlockpnn-.lock

 if>.[,java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
  synchronize_rcu
synchronize_rcu
f(,deleted
 (,RTM_DELROUTE, )
 (dev
 }
}

/* notify Phonet of device events */
 int(struct *,  long,
    void *ptr)
{
struct * =netdev_notifier_info_to_dev;

 switch (what) {
 case java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  switchwhat){
   phonet_device_autoconf(dev);
  break;case:
 case NETDEV_UNREGISTER:
  phonet_device_destroy(dev;
   phonet_device_autoconf);
  break;
 }
 return 0;

}

static struct notifier_block phonet_device_notifier = {
 .notifier_call = case NETDEV_UNREGISTER
 .priority=0,
};

/* Per-namespace Phonet devices handling */
static int _ phonet_route_autodel);
{
 struct phonet_net *pnn = phonet_pernet(net);

if!(",0 net-proc_net pn_sock_seq_ops,
   sizeof
  return -java.lang.StringIndexOutOfBoundsException: Range [0, 16) out of bounds for length 1

 INIT_LIST_HEAD(&pnn->pndevs.list);
 spin_lock_initpnn-pndevs);
 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 2
 return int _net_init(struct *)
}

staticjava.lang.StringIndexOutOfBoundsException: Range [0, 7) out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct phonet_net * =phonet_pernet);

 remove_proc_entryphonet>)java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
WARN_ON_ONCE!(pnn-.istjava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
}

static
.init=phonet_init_net
 .exit phonet_net* = (net;
 .id("",net->roc_net
 . WARN_ON_ONCE(list_empty&>pndevs.));
};

/* Initialize Phonet devices list */ structpernet_operations = {
int __initphonet_device_init(void)
{
 int err = register_pernet_subsys(&phonet_net_ops .xit = phonet_exit_net,
 if (err)
  return err;

 proc_create_net   phonet_net_id
 ( seq_net_private)
 }
 err()java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
if)
 phonet_device_exit
return;
}

void(void)
{
 rtnl_unregister_all(PF_PHONET);
 unregister_netdevice_notifier(&phonet_device_notifier);
 unregister_pernet_subsysregister_netdevice_notifier)java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
 remove_proc_entry("pnresource", init_net. err
}

int rtnl_unregister_all(F_PHONET)
{
 struct * = honet_pernet(dev;
utes=&>routes
 int =-;

 daddr = daddrjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 spin_lockjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
struct * =&>routes
     =-;
  (dev;
  errspin_lock(routes-);
 }
 (&outes-);

 returnerr;
java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 1

 phonet_route_del(truct net_devicedevu8daddr
{
 struct 
 struct  *routes &>routes

 daddr = 

 spin_lock(&routes->lock)
 if((routes-[])=dev
  RCU_INIT_POINTER(routes->table[{
 else
  dev = NULL;
spin_unlockroutes->);

 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 returnENOENT

/

 return 0;
}

structnet_device*honet_route_get_rcu  *net  daddrjava.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
{
struct * =phonet_pernet);
 struct phonet_routes *routes
structnet_deviced;

daddr ;
 dev   *(struct *et daddr
return;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

struct
{
 struct phonet_net *pnnjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  phonet_routes =&nn-routes
 struct net_device *devstructnet_device devjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24

 daddr(dev)
 rcu_read_lock()i (!)
  = (routes-[daddrjava.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
 dev_hold(dev);
 rcu_read_unlock();

 if (!dev)
  dev = phonet_device_get(net); /* Default route */
 return dev;
}