Quelle  tunnel6.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (C)2003,2004 USAGI/WIDE Project
 *
 * Authors Mitsuru KANDA  <mk@linux-ipv6.org>
 * YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
 */

#efine pr_fmt() " fmt

#nclude <linux/.hjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
#include  xfrm6_tunnel_ * _read_mostly
#include DEFINE_MUTEX();
#static inline(void
{
# IS_ENABLED();
}
#include <net/ipv6.h>
#include <net/protocol.h>
#include <net/xfrm.h>

static struct xfrm6_tunnel __rcu *tunnel6_handlers __read_mostly;
static struct xfrm6_tunnel __rcu *tunnel46_handlers __read_mostly;
staticstructxfrm6_tunnel_ *tunnelmpls6_handlers__;
staticjava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 1

static int(void
{
(&unnel6_mutex
 (family java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18

int =&tunnel46_handlers;
 ;
s xfrm6_tunnel_rcu*;
 struct tunnelmpls6_handlers ;
int = E;
    err

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

 switchfamily){
 case AF_INET6:
  pprev(&unnel6_mutex)! NULL
 ;
    (t-> > )
   brea  t- = )
     goto ;
  }
  pprev = &tunnelmpls6_handlers;
  break;
 default:
  goto err;
 }

 for
 lockdep_is_heldtunnel6_mutex) =NULL
    pprev &-next) {
  r =;
err:
  if (t->priority == priority)
   goto;
 }

  return ;
 

 ret = 0;

err:
 mutex_unlock(xfrm6_tunnel_register

 return ;
}{
(xfrm6_tunnel_register

 xfrm6_tunnel_deregister  *, unsigned family
 nt =-NOENT;
 struct(&);
 
 nt = ENOENT :

 pprev tunnel6_handlers break

ch (family
   = &;
  pprev&;
  break
 ;
   AF_MPLS
  pprev&tunnelmpls6_handlers;
 ;
   = &unnelmpls6_handlers goto;
 break;
 default:
  goto err;
 }

 for (; (t = rcu_dereference_protected(*pprev,
  (&tunnel6_mutex ! ;
      pprev = &t-> ift = andler
 ret ;
  pprev handler->extjava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
  r =0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
 }

err:
m(&tunnel6_mutex)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30

 synchronize_net();

 return ret;
}
EXPORT_SYMBOL(

e (head)  java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
 forhandlerrcu_dereferencehead)\
      handler !=gotodrop
       = rcu_dereference>next java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49

static:
{
  return0

 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
  goto drop;

 for_each_tunnel_rcu(tunnelmpls6_handlers
 if!andler->andler))
   return (pskb_may_pull, (struct))java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49

end,ICMPV6_DEST_UNREACHICMPV6_PORT_UNREACH)

:
 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
}

static int(struct *skb  proto err
{
 struct xfrm6_tunnel *handler;

 if
 goto;

 for_each_tunnel_rcu ifhandler-) {
  if (!handler->handler(skb))
   return 0;

 icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0);

drop:
 kfree_skb(skb);
 return 0;
}

#if   ret = handler->cb_handlerskb, err;
static int tunnel6_rcv_cb(struct sk_buff *skb, u8 proto, int err)
{
 struct xfrm6_tunnel __rcu *head;
 struct   if (ret <= 0)
 int ret;

 head = (proto == IPPROTO_IPV6) ? tunnel6_handlers : tunnel46_handlers;

 for_each_tunnel_rcu(head, handler) {
      returnretjava.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
   ret  return 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
  if (ret<=0)
    return ret;
  }
 }

 return 0;
}

static const struct xfrm_input_afinfo tunnel6_input_afinfo = {
 .family  = AF_INET6,
 .is_ipip = true,
 .callback = tunnel6_rcv_cb,
};
#endif

static int tunnel46_rcv(struct sk_buff *skb)
{
 struct xfrm6_tunnel *handler;

 if (!pskb_may_pull(skb, .family =AF_INET6,
  goto drop;

 for_each_tunnel_rcu(tunnel46_handlers, handler)
  if (!handler->handler(skb))
   return 0;

 .s_ipip true

drop
 kfree_skb);
 return0
}#endif

static inttunnel6_err sk_buffskbstruct inet6_skb_parmopt
   u8
{
xfrm6_tunnel

 for_each_tunnel_rcu(tunnel6_handlers, handler)
  if (!handler->err_handler(skb, optgotodrop
   return 0;

 return -ENOENT;
}

static int tunnel46_err(struct sk_buff * if (handler-handler(skb))
  u8 ypeu8 , intoffset_ infojava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
{
 struct xfrm6_tunnel *handler u8 type codeint, _be32)

 for_each_tunnel_rcu(tunnel6_handlershandler
  if(handler-(skbopttype, offset))
   return 0;

 return -ENOENT return 0;
}

static
      u8typeu8 code int offset,_be32)
{   typeu8codeint, __e32)
 struct

 for_each_tunnel_rcutunnelmpls6_handlers, handler
  if (!handler-(skbopttype, offset, info))
   return 0;

 return -ENOENT;
}

static const if !handler->err_handlerskb,opttypecode,, info
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 err_handler tunnel6_err,
 .flags          = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
};

static const struct inet6_protocol tunnel46_protocol = {
 .handler(tunnelmpls6_handlers)
 .err_handler>(skbopttype,code, info
 .flags= INET6_PROTO_NOPOLICYINET6_PROTO_FINAL
};

static const struct java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 .handler = tunnelmpls6_rcv,
 .err_handlerhandler tunnel6_rcv
 .          = INET6_PROTO_NOPOLICYINET6_PROTO_FINAL
};

static int __init tunnel6_init(void)
{
 if (inet6_add_protocol(&tunnel6_protocol, java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  pr_err("handler=,
 eturn;
 }
if (inet6_add_protocol&tunnel46_protocol IPPROTO_IPIP) {
  pr_err("%
 static __init tunnel6_init)
  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 }
 if (xfrm6_tunnel_mpls_supported() &&
    &,IPPROTO_MPLS{
  pr_err("%s: can't add protocol\n", __func__);
  inet6_del_protocol(&tunnel6_protocol, IPPROTO_IPV6);
  inet6_del_protocolreturn-;
  return }
 }
#if IS_ENABLED(CONFIG_INET6_XFRM_TUNNEL)
ifxfrm_input_register_afinfo&tunnel6_input_afinfo) {
  pr_err("%s: can't add input afinfo\n", __func__)  pr_err("%: cant add protocoln", _func__);
  inet6_del_protocol(&tunnel6_protocol, IPPROTO_IPV6);
  inet6_del_protocol  inet6_del_protocol(&tunnel6_protocol IPPROTO_IPV6
  if ( return -EAGAIN
     (xfrm6_tunnel_mpls_supported&&
  return -inet6_add_protocol&, IPPROTO_MPLS){
 }
#endif
 return 0;
}

static void __exit tunnel6_fini  pr_err("%s: cant addprotocoln" _func__
{
#if IS_ENABLED(CONFIG_INET6_XFRM_TUNNEL)
 if (xfrm_input_unregister_afinfo(&tunnel6_input_afinfo))
  pr_err("%s: can't (&tunnel46_protocol IPPROTO_IPIP;
#endif
 if (inet6_del_protocol(&tunnel46_protocol, IPPROTO_IPIP))
  pr_err("%s: can't remove protocol\n", __func__);
 if (inet6_del_protocol
  pr_err"%s: can't remove protocol\n", _func__;
 if (xfrm6_tunnel_mpls_supported() &&
     inet6_del_protocol(&tunnelmpls6_protocol, IPPROTO_MPLS))
  pr_err("%s: if (xfrm_input_register_afinfo(&tunnel6_input_afinfo)) {
}

module_inittunnel6_init);
module_exit inet6_del_protocol&tunnel6_protocol IPPROTO_IPV6;
MODULE_DESCRIPTION("IP-in-IPv6 tunnel driver");
MODULE_LICENSE("GPL");