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authorHolger Eitzenberger <holger@eitzenberger.org>2009-03-25 21:52:17 +0100
committerPatrick McHardy <kaber@trash.net>2009-03-25 21:52:17 +0100
commit5c0de29d06318ec8f6e3ba0d17d62529dbbdc1e8 (patch)
tree8759b27ec098844301343376b600b6ec47b3886f
parent2732c4e45bb67006fdc9ae6669be866762711ab5 (diff)
netfilter: nf_conntrack: add generic function to get len of generic policy
Usefull for all protocols which do not add additional data, such as GRE or UDPlite. Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
-rw-r--r--include/net/netfilter/nf_conntrack_l4proto.h1
-rw-r--r--net/netfilter/nf_conntrack_core.c6
2 files changed, 7 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index a120990b3b2b..ba32ed7bdabe 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -113,6 +113,7 @@ extern int nf_ct_port_tuple_to_nlattr(struct sk_buff *skb,
const struct nf_conntrack_tuple *tuple);
extern int nf_ct_port_nlattr_to_tuple(struct nlattr *tb[],
struct nf_conntrack_tuple *t);
+extern int nf_ct_port_nlattr_tuple_size(void);
extern const struct nla_policy nf_ct_port_nla_policy[];
#ifdef CONFIG_SYSCTL
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index c55bbdc7d429..b182b30c7d8d 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -921,6 +921,12 @@ int nf_ct_port_nlattr_to_tuple(struct nlattr *tb[],
return 0;
}
EXPORT_SYMBOL_GPL(nf_ct_port_nlattr_to_tuple);
+
+int nf_ct_port_nlattr_tuple_size(void)
+{
+ return nla_policy_len(nf_ct_port_nla_policy, CTA_PROTO_MAX + 1);
+}
+EXPORT_SYMBOL_GPL(nf_ct_port_nlattr_tuple_size);
#endif
/* Used by ipt_REJECT and ip6t_REJECT. */