+int vcl_segment_attach_session (uword segment_handle, uword rxf_offset,
+ uword txf_offset, uword mq_offset,
+ u32 mq_index, u8 is_ct, vcl_session_t *s);
+int vcl_segment_attach_mq (uword segment_handle, uword mq_offset, u32 mq_index,
+ svm_msg_q_t **mq);
+int vcl_segment_discover_mqs (uword segment_handle, int *fds, u32 n_fds);
+svm_fifo_chunk_t *vcl_segment_alloc_chunk (uword segment_handle,
+ u32 slice_index, u32 size,
+ uword *offset);
+int vcl_session_share_fifos (vcl_session_t *s, svm_fifo_t *rxf,
+ svm_fifo_t *txf);
+void vcl_worker_detach_sessions (vcl_worker_t *wrk);
+