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authorPablo Neira Ayuso <pablo@netfilter.org>2017-12-20 16:04:18 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2018-01-08 18:01:24 +0100
commitf7dcbe2f36a660140ecb286e15f502028d96ffdf (patch)
tree9cb6039e86358b2ba09230d5737485786bc1cc75 /include/linux/netfilter_ipv6.h
parentnetfilter: move checksum indirection to struct nf_ipv6_ops (diff)
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wireguard-linux-f7dcbe2f36a660140ecb286e15f502028d96ffdf.zip
netfilter: move checksum_partial indirection to struct nf_ipv6_ops
We cannot make a direct call to nf_ip6_checksum_partial() because that would result in autoloading the 'ipv6' module because of symbol dependencies. Therefore, define checksum_partial 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.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/netfilter_ipv6.h b/include/linux/netfilter_ipv6.h
index b136101b5cde..29e8f1286584 100644
--- a/include/linux/netfilter_ipv6.h
+++ b/include/linux/netfilter_ipv6.h
@@ -21,6 +21,9 @@ struct nf_ipv6_ops {
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);
+ __sum16 (*checksum_partial)(struct sk_buff *skb, unsigned int hook,
+ unsigned int dataoff, unsigned int len,
+ u_int8_t protocol);
};
#ifdef CONFIG_NETFILTER