payload: add DCCP packet type definitions

# nft describe dccp type
payload expression, datatype dccp_pkttype (DCCP packet type) (basetype integer), 4 bits

pre-defined symbolic constants:
	request                       	0x0
	response                      	0x1
	data                          	0x2
	ack                           	0x3
	dataack                       	0x4
	closereq                      	0x5
	close                         	0x6
	reset                         	0x7
	sync                          	0x8
	syncack                       	0x9

Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 14 insertions, 0 deletions

diff --git a/include/headers.h b/include/headers.h
index 5bbfdc49..469d6740 100644
--- a/include/headers.h
+++ b/include/headers.h
@@ -39,6 +39,20 @@ struct ip_comp_hdr {
 # define IPPROTO_DCCP 33
 #endif
 
+enum dccp_pkt_type {
+	DCCP_PKT_REQUEST = 0,
+	DCCP_PKT_RESPONSE,
+	DCCP_PKT_DATA,
+	DCCP_PKT_ACK,
+	DCCP_PKT_DATAACK,
+	DCCP_PKT_CLOSEREQ,
+	DCCP_PKT_CLOSE,
+	DCCP_PKT_RESET,
+	DCCP_PKT_SYNC,
+	DCCP_PKT_SYNCACK,
+	DCCP_PKT_INVALID,
+};
+
 struct dccp_hdr {
 	uint16_t	dccph_sport,
 			dccph_dport;