[DCCP]: Introduce CCID getsockopt for the CCIDs

Allocation for the optnames is similar to the DCCP options, with a
range for rx and tx half connection CCIDs.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index 13f9b78..71fab43 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -179,6 +179,8 @@
 /* DCCP socket options */
 #define DCCP_SOCKOPT_PACKET_SIZE	1
 #define DCCP_SOCKOPT_SERVICE		2
+#define DCCP_SOCKOPT_CCID_RX_INFO	128
+#define DCCP_SOCKOPT_CCID_TX_INFO	192
 
 #define DCCP_SERVICE_LIST_MAX_LEN      32