Add test function for data packets

PATCH In review Arnaldo Carvalho de Melo 1 participant 1 message Apr 12, 2007 Networking

Share & tools

Arnaldo Carvalho de Melo

author

2007-04-12 21:17 UTC #0 lore raw

PATCH 25/29 Add test function for data packets

This adds a function which returns true' when an skb contains one of the packet types specified in [RFC 4340, 7.7] as data packet'.

NB - Resisted the temptation to define
int dccp_non_data_packet(skb) { return !dccp_data_packet(skb); }, since maybe someone will define new packet types.

Signed-off-by Gerrit Renker <[email protected]>

Acked-by Ian McDonald <[email protected]

Signed-off-by Arnaldo Carvalho de Melo <[email protected]>

---
 net/dccp/dccp.h |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

net/dccp/dccp.h +12 -0

index b00fc7a..0dc4b7e 100644
@@ -320,6 +320,7 @@ 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;

@@ -332,6 +333,17 @@ 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;

Signature · 1 line

1.5.0.6