diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-12-20 16:04:18 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-01-08 18:01:24 +0100 |
| commit | f7dcbe2f36a660140ecb286e15f502028d96ffdf (patch) | |
| tree | 9cb6039e86358b2ba09230d5737485786bc1cc75 /include/linux/netfilter_ipv4.h | |
| parent | ef71fe27ec2f1607e38af160ab261a8d8ef8e121 (diff) | |
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_ipv4.h')
| -rw-r--r-- | include/linux/netfilter_ipv4.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/netfilter_ipv4.h b/include/linux/netfilter_ipv4.h index c7deb78bac88..811425ece8d5 100644 --- a/include/linux/netfilter_ipv4.h +++ b/include/linux/netfilter_ipv4.h @@ -11,12 +11,23 @@ int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned addr_type) #ifdef CONFIG_INET __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook, unsigned int dataoff, u_int8_t protocol); +__sum16 nf_ip_checksum_partial(struct sk_buff *skb, unsigned int hook, + unsigned int dataoff, unsigned int len, + u_int8_t protocol); #else static inline __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook, unsigned int dataoff, u_int8_t protocol) { return 0; } +static inline __sum16 nf_ip_checksum_partial(struct sk_buff *skb, + unsigned int hook, + unsigned int dataoff, + unsigned int len, + u_int8_t protocol) +{ + return 0; +} #endif /* CONFIG_INET */ #endif /*__LINUX_IP_NETFILTER_H*/ |