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netfilter: bridge: split ipv6 code into separated file

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Resolve compilation breakage when CONFIG_IPV6 is not set by moving the IPv6
code into a separated br_netfilter_ipv6.c file.

Fixes: efb6de9b4b ("netfilter: bridge: forward IPv6 fragmented packets")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso
2015-06-16 14:07:03 +02:00
parent c4e70a87d9
commit 230ac490f7
4 changed files with 315 additions and 239 deletions
Download Patch File Download Diff File Expand all files Collapse all files

60
include/net/netfilter/br_netfilter.h
View File

@@ -1,6 +1,66 @@
#ifndef _BR_NETFILTER_H_
#define _BR_NETFILTER_H_
#include "../../../net/bridge/br_private.h"
static inline struct nf_bridge_info *nf_bridge_alloc(struct sk_buff *skb)
{
skb->nf_bridge = kzalloc(sizeof(struct nf_bridge_info), GFP_ATOMIC);
if (likely(skb->nf_bridge))
atomic_set(&(skb->nf_bridge->use), 1);
return skb->nf_bridge;
}
void nf_bridge_update_protocol(struct sk_buff *skb);
static inline struct nf_bridge_info *
nf_bridge_info_get(const struct sk_buff *skb)
{
return skb->nf_bridge;
}
unsigned int nf_bridge_encap_header_len(const struct sk_buff *skb);
static inline void nf_bridge_push_encap_header(struct sk_buff *skb)
{
unsigned int len = nf_bridge_encap_header_len(skb);
skb_push(skb, len);
skb->network_header -= len;
}
int br_nf_pre_routing_finish_bridge(struct sock *sk, struct sk_buff *skb);
static inline struct rtable *bridge_parent_rtable(const struct net_device *dev)
{
struct net_bridge_port *port;
port = br_port_get_rcu(dev);
return port ? &port->br->fake_rtable : NULL;
}
struct net_device *setup_pre_routing(struct sk_buff *skb);
void br_netfilter_enable(void);
#if IS_ENABLED(CONFIG_IPV6)
int br_validate_ipv6(struct sk_buff *skb);
unsigned int br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct nf_hook_state *state);
#else
static inline int br_validate_ipv6(struct sk_buff *skb)
{
return -1;
}
static inline unsigned int
br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct nf_hook_state *state)
{
return NF_DROP;
}
#endif
#endif /* _BR_NETFILTER_H_ */