-#define IPPROTO_DCCP 33 /**< IANA assigned value */
-#define SOCK_DCCP 6 /**< Linux socket type */
-#define SOL_DCCP 269 /**< Linux socket level */
+#define IPPROTO_DCCP 33 /* IANA assigned value */
+#define SOCK_DCCP 6 /* Linux socket type */
+#define SOL_DCCP 269 /* Linux socket level */
+/* Per-connection CCID support (since v2.6.30-rc1) */
+#define DCCP_SOCKOPT_AVAILABLE_CCIDS 12 /* List of supported CCIDs */
+#define DCCP_SOCKOPT_CCID 13 /* Sets both TX/RX CCID */
+#define DCCP_SOCKOPT_TX_CCID 14 /* Set/get the TX CCID */
+#define DCCP_SOCKOPT_RX_CCID 15 /* Set/get the RX CCID */