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[NET]: Make ipip/ip6_tunnel independant of XFRM

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Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2005-07-19 14:03:34 -07:00 committed by David S. Miller
parent c877efb207
commit 0303770deb
6 changed files with 67 additions and 14 deletions
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2
include/net/xfrm.h
View File

@ -803,7 +803,7 @@ struct xfrm_algo_desc {
/* XFRM tunnel handlers. */
struct xfrm_tunnel {
int (*handler)(struct sk_buff *skb);
void (*err_handler)(struct sk_buff *skb, void *info);
void (*err_handler)(struct sk_buff *skb, __u32 info);
};
struct xfrm6_tunnel {

1
net/ipv4/Kconfig
View File

@ -235,7 +235,6 @@ config IP_PNP_RARP
# bool ' IP: ARP support' CONFIG_IP_PNP_ARP
config NET_IPIP
tristate "IP: tunneling"
select INET_TUNNEL
---help---
Tunneling means encapsulating data of one protocol type within
another protocol and sending it over a channel that understands the

36
net/ipv4/ipip.c
View File

@ -273,7 +273,7 @@ static void ipip_tunnel_uninit(struct net_device *dev)
dev_put(dev);
}
static void ipip_err(struct sk_buff *skb, void *__unused)
static void ipip_err(struct sk_buff *skb, u32 info)
{
#ifndef I_WISH_WORLD_WERE_PERFECT
@ -852,11 +852,39 @@ static int __init ipip_fb_tunnel_init(struct net_device *dev)
return 0;
}
#ifdef CONFIG_INET_TUNNEL
static struct xfrm_tunnel ipip_handler = {
.handler = ipip_rcv,
.err_handler = ipip_err,
};
static inline int ipip_register(void)
{
return xfrm4_tunnel_register(&ipip_handler);
}
static inline int ipip_unregister(void)
{
return xfrm4_tunnel_deregister(&ipip_handler);
}
#else
static struct net_protocol ipip_protocol = {
.handler = ipip_rcv,
.err_handler = ipip_err,
.no_policy = 1,
};
static inline int ipip_register(void)
{
return inet_add_protocol(&ipip_protocol, IPPROTO_IPIP);
}
static inline int ipip_unregister(void)
{
return inet_del_protocol(&ipip_protocol, IPPROTO_IPIP);
}
#endif
static char banner[] __initdata =
KERN_INFO "IPv4 over IPv4 tunneling driver\n";
@ -866,7 +894,7 @@ static int __init ipip_init(void)
printk(banner);
if (xfrm4_tunnel_register(&ipip_handler) < 0) {
if (ipip_register() < 0) {
printk(KERN_INFO "ipip init: can't register tunnel\n");
return -EAGAIN;
}
@ -888,13 +916,13 @@ static int __init ipip_init(void)
err2:
free_netdev(ipip_fb_tunnel_dev);
err1:
xfrm4_tunnel_deregister(&ipip_handler);
ipip_unregister();
goto out;
}
static void __exit ipip_fini(void)
{
if (xfrm4_tunnel_deregister(&ipip_handler) < 0)
if (ipip_unregister() < 0)
printk(KERN_INFO "ipip close: can't deregister tunnel\n");
unregister_netdev(ipip_fb_tunnel_dev);

3
net/ipv4/xfrm4_tunnel.c
View File

@ -78,10 +78,9 @@ static int ipip_rcv(struct sk_buff *skb)
static void ipip_err(struct sk_buff *skb, u32 info)
{
struct xfrm_tunnel *handler = ipip_handler;
u32 arg = info;
if (handler)
handler->err_handler(skb, &arg);
handler->err_handler(skb, info);
}
static int ipip_init_state(struct xfrm_state *x)

1
net/ipv6/Kconfig
View File

@ -91,7 +91,6 @@ config INET6_TUNNEL
config IPV6_TUNNEL
tristate "IPv6: IPv6-in-IPv6 tunnel"
depends on IPV6
select INET6_TUNNEL
---help---
Support for IPv6-in-IPv6 tunnels described in RFC 2473.

38
net/ipv6/ip6_tunnel.c
View File

@ -1110,11 +1110,39 @@ ip6ip6_fb_tnl_dev_init(struct net_device *dev)
return 0;
}
#ifdef CONFIG_INET6_TUNNEL
static struct xfrm6_tunnel ip6ip6_handler = {
.handler = ip6ip6_rcv,
.err_handler = ip6ip6_err,
.handler = ip6ip6_rcv,
.err_handler = ip6ip6_err,
};
static inline int ip6ip6_register(void)
{
return xfrm6_tunnel_register(&ip6ip6_handler);
}
static inline int ip6ip6_unregister(void)
{
return xfrm6_tunnel_unregister(&ip6ip6_handler);
}
#else
static struct inet6_protocol xfrm6_tunnel_protocol = {
.handler = ip6ip6_rcv,
.err_handler = ip6ip6_err,
.flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
};
static inline int ip6ip6_register(void)
{
return inet6_add_protocol(&xfrm6_tunnel_protocol, IPPROTO_IPV6);
}
static inline int ip6ip6_unregister(void)
{
return inet6_del_protocol(&xfrm6_tunnel_protocol, IPPROTO_IPV6);
}
#endif
/**
* ip6_tunnel_init - register protocol and reserve needed resources
*
@ -1125,7 +1153,7 @@ static int __init ip6_tunnel_init(void)
{
int err;
if (xfrm6_tunnel_register(&ip6ip6_handler) < 0) {
if (ip6ip6_register() < 0) {
printk(KERN_ERR "ip6ip6 init: can't register tunnel\n");
return -EAGAIN;
}
@ -1144,7 +1172,7 @@ static int __init ip6_tunnel_init(void)
}
return 0;
fail:
xfrm6_tunnel_deregister(&ip6ip6_handler);
ip6ip6_unregister();
return err;
}
@ -1154,7 +1182,7 @@ fail:
static void __exit ip6_tunnel_cleanup(void)
{
if (xfrm6_tunnel_deregister(&ip6ip6_handler) < 0)
if (ip6ip6_unregister() < 0)
printk(KERN_INFO "ip6ip6 close: can't deregister tunnel\n");
unregister_netdev(ip6ip6_fb_tnl_dev);