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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2007-12-06 12:27:15 -0200
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:56:40 -0800
commit2180c41ca5c1a36c67f4140e80154699333109d2 (patch)
tree77438292f56f848fea4cb44f097234a1f3c9acf7
parentc40616c597bf02a2346cbf2f120283734b436245 (diff)
downloadop-kernel-dev-2180c41ca5c1a36c67f4140e80154699333109d2.zip
op-kernel-dev-2180c41ca5c1a36c67f4140e80154699333109d2.tar.gz
[DCCP]: Introduce generic function to test for `data packets'
as per RFC 4340, sec. 7.7. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/dccp/dccp.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index ee97950..f4a5ea1 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -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;
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