#include <linux/config.h>
#include <linux/module.h>
+#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/sockios.h>
#include <net/ip.h>
#include <net/ipv6.h>
-#include <net/protocol.h>
#include <net/ip6_route.h>
#include <net/addrconf.h>
#include <net/ip6_tunnel.h>
if (dev == NULL)
return -ENOMEM;
- t = dev->priv;
+ t = netdev_priv(dev);
dev->init = ip6ip6_tnl_dev_init;
t->parms = *p;
static void
ip6ip6_tnl_dev_uninit(struct net_device *dev)
{
- struct ip6_tnl *t = dev->priv;
+ struct ip6_tnl *t = netdev_priv(dev);
if (dev == ip6ip6_fb_tnl_dev) {
write_lock_bh(&ip6ip6_lock);
* to the specifications in RFC 2473.
**/
-static void
+static int
ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
int type, int code, int offset, __u32 info)
{
int rel_code = ICMPV6_ADDR_UNREACH;
__u32 rel_info = 0;
__u16 len;
+ int err = -ENOENT;
/* If the packet doesn't contain the original IPv6 header we are
in trouble since we might need the source address for further
if ((t = ip6ip6_tnl_lookup(&ipv6h->daddr, &ipv6h->saddr)) == NULL)
goto out;
+ err = 0;
+
switch (type) {
__u32 teli;
struct ipv6_tlv_tnl_enc_lim *tel;
mtu = IPV6_MIN_MTU;
t->dev->mtu = mtu;
- if ((len = sizeof (*ipv6h) + ipv6h->payload_len) > mtu) {
+ if ((len = sizeof (*ipv6h) + ntohs(ipv6h->payload_len)) > mtu) {
rel_type = ICMPV6_PKT_TOOBIG;
rel_code = 0;
rel_info = mtu;
}
out:
read_unlock(&ip6ip6_lock);
+ return err;
}
static inline void ip6ip6_ecn_decapsulate(struct ipv6hdr *outer_iph,
**/
static int
-ip6ip6_rcv(struct sk_buff **pskb, unsigned int *nhoffp)
+ip6ip6_rcv(struct sk_buff *skb)
{
- struct sk_buff *skb = *pskb;
struct ipv6hdr *ipv6h;
struct ip6_tnl *t;
- if (!pskb_may_pull(skb, sizeof (*ipv6h)))
- goto discard;
-
ipv6h = skb->nh.ipv6h;
read_lock(&ip6ip6_lock);
if ((t = ip6ip6_tnl_lookup(&ipv6h->saddr, &ipv6h->daddr)) != NULL) {
if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {
- kfree_skb(skb);
- return 0;
+ read_unlock(&ip6ip6_lock);
+ goto discard;
}
if (!(t->parms.flags & IP6_TNL_F_CAP_RCV)) {
return 0;
}
read_unlock(&ip6ip6_lock);
- icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_ADDR_UNREACH, 0, skb->dev);
-discard:
return 1;
+
+discard:
+ kfree_skb(skb);
+ return 0;
}
static inline struct ipv6_txoptions *create_tel(__u8 encap_limit)
static int
ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
{
- struct ip6_tnl *t = (struct ip6_tnl *) dev->priv;
+ struct ip6_tnl *t = netdev_priv(dev);
struct net_device_stats *stats = &t->stat;
struct ipv6hdr *ipv6h = skb->nh.ipv6h;
struct ipv6_txoptions *opt = NULL;
if ((dst = ip6_tnl_dst_check(t)) != NULL)
dst_hold(dst);
- else
+ else {
dst = ip6_route_output(NULL, &fl);
- if (dst->error || xfrm_lookup(&dst, &fl, NULL, 0) < 0)
- goto tx_err_link_failure;
+ if (dst->error || xfrm_lookup(&dst, &fl, NULL, 0) < 0)
+ goto tx_err_link_failure;
+ }
tdev = dst->dev;
}
ip6_tnl_dst_store(t, dst);
- if (opt)
- kfree(opt);
+ kfree(opt);
t->recursion--;
return 0;
dst_link_failure(skb);
tx_err_dst_release:
dst_release(dst);
- if (opt)
- kfree(opt);
+ kfree(opt);
tx_err:
stats->tx_errors++;
stats->tx_dropped++;
t->parms.encap_limit = p->encap_limit;
t->parms.flowinfo = p->flowinfo;
t->parms.link = p->link;
+ ip6_tnl_dst_reset(t);
ip6ip6_tnl_link_config(t);
return 0;
}
break;
}
if ((err = ip6ip6_tnl_locate(&p, &t, 0)) == -ENODEV)
- t = (struct ip6_tnl *) dev->priv;
+ t = netdev_priv(dev);
else if (err)
break;
} else
- t = (struct ip6_tnl *) dev->priv;
+ t = netdev_priv(dev);
memcpy(&p, &t->parms, sizeof (p));
if (copy_to_user(ifr->ifr_ifru.ifru_data, &p, sizeof (p))) {
break;
}
if (!create && dev != ip6ip6_fb_tnl_dev) {
- t = (struct ip6_tnl *) dev->priv;
+ t = netdev_priv(dev);
}
if (!t && (err = ip6ip6_tnl_locate(&p, &t, create))) {
break;
err = ip6ip6_tnl_locate(&p, &t, 0);
if (err)
break;
- if (t == ip6ip6_fb_tnl_dev->priv) {
+ if (t == netdev_priv(ip6ip6_fb_tnl_dev)) {
err = -EPERM;
break;
}
} else {
- t = (struct ip6_tnl *) dev->priv;
+ t = netdev_priv(dev);
}
err = unregister_netdevice(t->dev);
break;
static struct net_device_stats *
ip6ip6_tnl_get_stats(struct net_device *dev)
{
- return &(((struct ip6_tnl *) dev->priv)->stat);
+ return &(((struct ip6_tnl *)netdev_priv(dev))->stat);
}
/**
static inline void
ip6ip6_tnl_dev_init_gen(struct net_device *dev)
{
- struct ip6_tnl *t = (struct ip6_tnl *) dev->priv;
+ struct ip6_tnl *t = netdev_priv(dev);
t->fl.proto = IPPROTO_IPV6;
t->dev = dev;
strcpy(t->parms.name, dev->name);
static int
ip6ip6_tnl_dev_init(struct net_device *dev)
{
- struct ip6_tnl *t = (struct ip6_tnl *) dev->priv;
+ struct ip6_tnl *t = netdev_priv(dev);
ip6ip6_tnl_dev_init_gen(dev);
ip6ip6_tnl_link_config(t);
return 0;
static int
ip6ip6_fb_tnl_dev_init(struct net_device *dev)
{
- struct ip6_tnl *t = dev->priv;
+ struct ip6_tnl *t = netdev_priv(dev);
ip6ip6_tnl_dev_init_gen(dev);
dev_hold(dev);
tnls_wc[0] = t;
}
static struct xfrm6_tunnel ip6ip6_handler = {
- .handler = ip6ip6_rcv,
- .err_handler = ip6ip6_err,
+ .handler = ip6ip6_rcv,
+ .err_handler = ip6ip6_err,
+ .priority = 1,
};
/**
{
int err;
- if (xfrm6_tunnel_register(&ip6ip6_handler) < 0) {
+ if (xfrm6_tunnel_register(&ip6ip6_handler)) {
printk(KERN_ERR "ip6ip6 init: can't register tunnel\n");
return -EAGAIN;
}
static void __exit ip6_tunnel_cleanup(void)
{
- if (xfrm6_tunnel_deregister(&ip6ip6_handler) < 0)
+ if (xfrm6_tunnel_deregister(&ip6ip6_handler))
printk(KERN_INFO "ip6ip6 close: can't deregister tunnel\n");
unregister_netdev(ip6ip6_fb_tnl_dev);