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authorPatrick McHardy <kaber@trash.net>2006-04-06 14:18:43 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-04-09 22:25:41 -0700
commit422c346fad806e2abaeffac686860ebc98dfe33e (patch)
treedd554d11e80ad33afef4b438ec4c2d8943ad37f4 /include/linux/netfilter_ipv4.h
parentbce8032ef3cc58170ab3550e9e271dba7b4c4764 (diff)
[NETFILTER]: Add address family specific checksum helpers
Add checksum operation which takes care of verifying the checksum and dealing with HW checksum errors and avoids multiple checksum operations by setting ip_summed to CHECKSUM_UNNECESSARY after successful verification. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netfilter_ipv4.h')
-rw-r--r--include/linux/netfilter_ipv4.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/netfilter_ipv4.h b/include/linux/netfilter_ipv4.h
index 43c09d790b83..85301c5e8d24 100644
--- a/include/linux/netfilter_ipv4.h
+++ b/include/linux/netfilter_ipv4.h
@@ -80,6 +80,8 @@ enum nf_ip_hook_priorities {
#ifdef __KERNEL__
extern int ip_route_me_harder(struct sk_buff **pskb);
extern int ip_xfrm_me_harder(struct sk_buff **pskb);
+extern unsigned int nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
+ unsigned int dataoff, u_int8_t protocol);
#endif /*__KERNEL__*/
#endif /*__LINUX_IP_NETFILTER_H*/