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ef71fe27ec
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>
22 lines
618 B
C
22 lines
618 B
C
/* IPv4-specific defines for netfilter.
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* (C)1998 Rusty Russell -- This code is GPL.
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*/
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#ifndef __LINUX_IP_NETFILTER_H
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#define __LINUX_IP_NETFILTER_H
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#include <uapi/linux/netfilter_ipv4.h>
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int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned addr_type);
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#ifdef CONFIG_INET
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__sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
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unsigned int dataoff, u_int8_t protocol);
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#else
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static inline __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
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unsigned int dataoff, u_int8_t protocol)
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{
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return 0;
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}
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#endif /* CONFIG_INET */
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#endif /*__LINUX_IP_NETFILTER_H*/
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