[NETFILTER]: nf_conntrack/nf_nat: add IRC helper port

Add nf_conntrack port of the IRC conntrack/NAT helper. Since DCC doesn't
support IPv6 yet, the helper is still IPv4 only.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 15 insertions, 0 deletions

diff --git a/include/linux/netfilter/nf_conntrack_irc.h b/include/linux/netfilter/nf_conntrack_irc.h
new file mode 100644
index 000000000000..2ab6b8255911
--- /dev/null
+++ b/include/linux/netfilter/nf_conntrack_irc.h
@@ -0,0 +1,15 @@
+#ifndef _NF_CONNTRACK_IRC_H
+#define _NF_CONNTRACK_IRC_H
+
+#ifdef __KERNEL__
+
+#define IRC_PORT        6667
+
+extern unsigned int (*nf_nat_irc_hook)(struct sk_buff **pskb,
+                                       enum ip_conntrack_info ctinfo,
+                                       unsigned int matchoff,
+                                       unsigned int matchlen,
+                                       struct nf_conntrack_expect *exp);
+
+#endif /* __KERNEL__ */
+#endif /* _NF_CONNTRACK_IRC_H */