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| author |   Pablo Neira Ayuso <pablo@netfilter.org> | 2017-11-27 21:55:14 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-01-08 18:01:23 +0100 |
| commit | ef71fe27ec2f1607e38af160ab261a8d8ef8e121 (patch) | |
| tree | a1ca3ce2d168dc58db17fd0c4f1beefe36685f0c /include/linux/netfilter_ipv6.h | |
| parent | netfilter: connlimit: split xt_connlimit into front and backend (diff) | |
| download | wireguard-linux-ef71fe27ec2f1607e38af160ab261a8d8ef8e121.tar.xz wireguard-linux-ef71fe27ec2f1607e38af160ab261a8d8ef8e121.zip | |
netfilter: move checksum indirection to struct nf_ipv6_ops
We cannot make a direct call to nf_ip6_checksum() because that would
result in autoloading the 'ipv6' module because of symbol dependencies.
Therefore, define checksum 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_ipv6.h')
| -rw-r--r-- | include/linux/netfilter_ipv6.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/netfilter_ipv6.h b/include/linux/netfilter_ipv6.h index 47c6b04c28c0..b136101b5cde 100644 --- a/include/linux/netfilter_ipv6.h +++ b/include/linux/netfilter_ipv6.h @@ -19,6 +19,8 @@ struct nf_ipv6_ops { void (*route_input)(struct sk_buff *skb); int (*fragment)(struct net *net, struct sock *sk, struct sk_buff *skb, int (*output)(struct net *, struct sock *, struct sk_buff *)); + __sum16 (*checksum)(struct sk_buff *skb, unsigned int hook, + unsigned int dataoff, u_int8_t protocol); }; #ifdef CONFIG_NETFILTER |