2 files changed, 36 insertions, 3 deletions

diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index fd1412d..431d589 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -242,10 +242,15 @@ static inline struct dccp_hdr_ext *dccp_hdrx(const struct sk_buff *skb)
 	return (struct dccp_hdr_ext *)(skb->h.raw + sizeof(struct dccp_hdr));
 }
 
+static inline unsigned int __dccp_basic_hdr_len(const struct dccp_hdr *dh)
+{
+	return sizeof(*dh) + (dh->dccph_x ? sizeof(struct dccp_hdr_ext) : 0);
+}
+
 static inline unsigned int dccp_basic_hdr_len(const struct sk_buff *skb)
 {
 	const struct dccp_hdr *dh = dccp_hdr(skb);
-	return sizeof(*dh) + (dh->dccph_x ? sizeof(struct dccp_hdr_ext) : 0);
+	return __dccp_basic_hdr_len(dh);
 }
 
 static inline __u64 dccp_hdr_seq(const struct sk_buff *skb)
@@ -297,10 +302,15 @@ static inline struct dccp_hdr_reset *dccp_hdr_reset(struct sk_buff *skb)
 	return (struct dccp_hdr_reset *)(skb->h.raw + dccp_basic_hdr_len(skb));
 }
 
+static inline unsigned int __dccp_hdr_len(const struct dccp_hdr *dh)
+{
+	return __dccp_basic_hdr_len(dh) +
+	       dccp_packet_hdr_len(dh->dccph_type);
+}
+
 static inline unsigned int dccp_hdr_len(const struct sk_buff *skb)
 {
-	return dccp_basic_hdr_len(skb) +
-	       dccp_packet_hdr_len(dccp_hdr(skb)->dccph_type);
+	return __dccp_hdr_len(dccp_hdr(skb));
 }
 
 
diff --git a/include/linux/netfilter_ipv4/ipt_dccp.h b/include/linux/netfilter_ipv4/ipt_dccp.h
new file mode 100644
index 0000000..3cb3a52
--- /dev/null
+++ b/include/linux/netfilter_ipv4/ipt_dccp.h
@@ -0,0 +1,23 @@
+#ifndef _IPT_DCCP_H_
+#define _IPT_DCCP_H_
+
+#define IPT_DCCP_SRC_PORTS	        0x01
+#define IPT_DCCP_DEST_PORTS	        0x02
+#define IPT_DCCP_TYPE			0x04
+#define IPT_DCCP_OPTION			0x08
+
+#define IPT_DCCP_VALID_FLAGS		0x0f
+
+struct ipt_dccp_info {
+	u_int16_t dpts[2];  /* Min, Max */
+	u_int16_t spts[2];  /* Min, Max */
+
+	u_int16_t flags;
+	u_int16_t invflags;
+
+	u_int16_t typemask;
+	u_int8_t option;
+};
+
+#endif /* _IPT_DCCP_H_ */
+