diff options
| author |   Patrick McHardy <kaber@trash.net> | 2013-08-27 08:50:15 +0200 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2013-08-28 00:28:04 +0200 |
| commit | 81eb6a1487718a89621a0e0be7fafd0cd7c429a4 (patch) | |
| tree | 05c8e0e54aa0c9739b5b7cd46d29d5385cb1ede0 /include/net | |
| parent | netfilter: add SYNPROXY core/target (diff) | |
| download | linux-dev-81eb6a1487718a89621a0e0be7fafd0cd7c429a4.tar.xz linux-dev-81eb6a1487718a89621a0e0be7fafd0cd7c429a4.zip | |
net: syncookies: export cookie_v6_init_sequence/cookie_v6_check
Extract the local TCP stack independant parts of tcp_v6_init_sequence()
and cookie_v6_check() and export them for use by the upcoming IPv6 SYNPROXY
target.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: Martin Topholm <mph@one.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/tcp.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index 8e2b63678a83..dd5e16f66f84 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -499,8 +499,12 @@ extern bool cookie_check_timestamp(struct tcp_options_received *opt, struct net *net, bool *ecn_ok); /* From net/ipv6/syncookies.c */ +extern int __cookie_v6_check(const struct ipv6hdr *iph, const struct tcphdr *th, + u32 cookie); extern struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb); #ifdef CONFIG_SYN_COOKIES +extern u32 __cookie_v6_init_sequence(const struct ipv6hdr *iph, + const struct tcphdr *th, u16 *mssp); extern __u32 cookie_v6_init_sequence(struct sock *sk, const struct sk_buff *skb, __u16 *mss); #else |