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| author |   Pablo Neira Ayuso <pablo@netfilter.org> | 2017-11-27 22:50:26 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-01-08 18:10:53 +0100 |
| commit | ce388f452f0af2013c657dd24be4415d94e7704f (patch) | |
| tree | 05f43955eee02314af8eab159ccbc2c0363c0c82 /include/linux/netfilter_ipv4.h | |
| parent | netfilter: move route indirection to struct nf_ipv6_ops (diff) | |
| download | linux-dev-ce388f452f0af2013c657dd24be4415d94e7704f.tar.xz linux-dev-ce388f452f0af2013c657dd24be4415d94e7704f.zip | |
netfilter: move reroute indirection to struct nf_ipv6_ops
We cannot make a direct call to nf_ip6_reroute() because that would result
in autoloading the 'ipv6' module because of symbol dependencies.
Therefore, define reroute indirection in nf_ipv6_ops where this really
belongs to.
For IPv4, we can indeed make a direct function call, which is faster,
given IPv4 is built-in in the networking code by default. Still,
CONFIG_INET=n and CONFIG_NETFILTER=y is possible, so define empty inline
stub for IPv4 in such case.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/linux/netfilter_ipv4.h')
| -rw-r--r-- | include/linux/netfilter_ipv4.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/netfilter_ipv4.h b/include/linux/netfilter_ipv4.h index 2a4e2c415647..b31dabfdb453 100644 --- a/include/linux/netfilter_ipv4.h +++ b/include/linux/netfilter_ipv4.h @@ -18,6 +18,8 @@ struct ip_rt_info { int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned addr_type); +struct nf_queue_entry; + #ifdef CONFIG_INET __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook, unsigned int dataoff, u_int8_t protocol); @@ -26,6 +28,7 @@ __sum16 nf_ip_checksum_partial(struct sk_buff *skb, unsigned int hook, u_int8_t protocol); int nf_ip_route(struct net *net, struct dst_entry **dst, struct flowi *fl, bool strict); +int nf_ip_reroute(struct sk_buff *skb, const struct nf_queue_entry *entry); #else static inline __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook, unsigned int dataoff, u_int8_t protocol) @@ -45,6 +48,11 @@ static inline int nf_ip_route(struct net *net, struct dst_entry **dst, { return -EOPNOTSUPP; } +static inline int nf_ip_reroute(struct sk_buff *skb, + const struct nf_queue_entry *entry) +{ + return -EOPNOTSUPP; +} #endif /* CONFIG_INET */ #endif /*__LINUX_IP_NETFILTER_H*/ |