+/* SCTP buffer opaque definition */
+typedef struct
+{
+ struct
+ {
+ u32 connection_index;
+ u16 sid; /**< Stream ID */
+ u16 ssn; /**< Stream Sequence Number */
+ u32 tsn; /**< Transmission Sequence Number */
+ u16 hdr_offset; /**< offset relative to ip hdr */
+ u16 data_offset; /**< offset relative to ip hdr */
+ u16 data_len; /**< data len */
+ u8 subconn_idx; /**< index of the sub_connection being used */
+ u8 flags;
+ } sctp;
+} sctp_buffer_opaque_t;
+
+STATIC_ASSERT (sizeof (sctp_buffer_opaque_t) <=
+ STRUCT_SIZE_OF (vnet_buffer_opaque_t, unused),
+ "sctp_buffer_opaque_t too large for vnet_buffer_opaque_t");
+
+#define sctp_buffer_opaque(b) \
+ ((sctp_buffer_opaque_t *)((u8 *)((b)->opaque) + \
+STRUCT_OFFSET_OF (vnet_buffer_opaque_t, unused)))
+
+