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Commit 2180c41c authored by Gerrit Renker's avatar Gerrit Renker Committed by David S. Miller
Browse files

[DCCP]: Introduce generic function to test for `data packets' 



as per  RFC 4340, sec. 7.7.

Signed-off-by: default avatarGerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: default avatarIan McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c40616c5

net/dccp/dccp.h

+12 −0
Original line number Diff line number Diff line
@@ -334,6 +334,7 @@ struct dccp_skb_cb { 


#define DCCP_SKB_CB(__skb) ((struct dccp_skb_cb *)&((__skb)->cb[0]))



/* RFC 4340, sec. 7.7 */

static inline int dccp_non_data_packet(const struct sk_buff *skb)

{

	const __u8 type = DCCP_SKB_CB(skb)->dccpd_type;
@@ -346,6 +347,17 @@ static inline int dccp_non_data_packet(const struct sk_buff *skb) 
	       type == DCCP_PKT_SYNCACK;

}



/* RFC 4340, sec. 7.7 */

static inline int dccp_data_packet(const struct sk_buff *skb)

{

	const __u8 type = DCCP_SKB_CB(skb)->dccpd_type;



	return type == DCCP_PKT_DATA	 ||

	       type == DCCP_PKT_DATAACK  ||

	       type == DCCP_PKT_REQUEST  ||

	       type == DCCP_PKT_RESPONSE;

}



static inline int dccp_packet_without_ack(const struct sk_buff *skb)

{

	const __u8 type = DCCP_SKB_CB(skb)->dccpd_type;